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Diffstat (limited to 'SDL_Core/src/thirdPartyLibs/gmock-1.6.0/include/gmock/gmock-matchers.h')
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diff --git a/SDL_Core/src/thirdPartyLibs/gmock-1.6.0/include/gmock/gmock-matchers.h b/SDL_Core/src/thirdPartyLibs/gmock-1.6.0/include/gmock/gmock-matchers.h deleted file mode 100644 index c21fa515f..000000000 --- a/SDL_Core/src/thirdPartyLibs/gmock-1.6.0/include/gmock/gmock-matchers.h +++ /dev/null @@ -1,3066 +0,0 @@ -// Copyright 2007, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// Author: wan@google.com (Zhanyong Wan) - -// Google Mock - a framework for writing C++ mock classes. -// -// This file implements some commonly used argument matchers. More -// matchers can be defined by the user implementing the -// MatcherInterface<T> interface if necessary. - -#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ -#define GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ - -#include <algorithm> -#include <limits> -#include <ostream> // NOLINT -#include <sstream> -#include <string> -#include <utility> -#include <vector> - -#include "gmock/internal/gmock-internal-utils.h" -#include "gmock/internal/gmock-port.h" -#include "gtest/gtest.h" - -namespace testing { - -// To implement a matcher Foo for type T, define: -// 1. a class FooMatcherImpl that implements the -// MatcherInterface<T> interface, and -// 2. a factory function that creates a Matcher<T> object from a -// FooMatcherImpl*. -// -// The two-level delegation design makes it possible to allow a user -// to write "v" instead of "Eq(v)" where a Matcher is expected, which -// is impossible if we pass matchers by pointers. It also eases -// ownership management as Matcher objects can now be copied like -// plain values. - -// MatchResultListener is an abstract class. Its << operator can be -// used by a matcher to explain why a value matches or doesn't match. -// -// TODO(wan@google.com): add method -// bool InterestedInWhy(bool result) const; -// to indicate whether the listener is interested in why the match -// result is 'result'. -class MatchResultListener { - public: - // Creates a listener object with the given underlying ostream. The - // listener does not own the ostream. - explicit MatchResultListener(::std::ostream* os) : stream_(os) {} - virtual ~MatchResultListener() = 0; // Makes this class abstract. - - // Streams x to the underlying ostream; does nothing if the ostream - // is NULL. - template <typename T> - MatchResultListener& operator<<(const T& x) { - if (stream_ != NULL) - *stream_ << x; - return *this; - } - - // Returns the underlying ostream. - ::std::ostream* stream() { return stream_; } - - // Returns true iff the listener is interested in an explanation of - // the match result. A matcher's MatchAndExplain() method can use - // this information to avoid generating the explanation when no one - // intends to hear it. - bool IsInterested() const { return stream_ != NULL; } - - private: - ::std::ostream* const stream_; - - GTEST_DISALLOW_COPY_AND_ASSIGN_(MatchResultListener); -}; - -inline MatchResultListener::~MatchResultListener() { -} - -// The implementation of a matcher. -template <typename T> -class MatcherInterface { - public: - virtual ~MatcherInterface() {} - - // Returns true iff the matcher matches x; also explains the match - // result to 'listener', in the form of a non-restrictive relative - // clause ("which ...", "whose ...", etc) that describes x. For - // example, the MatchAndExplain() method of the Pointee(...) matcher - // should generate an explanation like "which points to ...". - // - // You should override this method when defining a new matcher. - // - // It's the responsibility of the caller (Google Mock) to guarantee - // that 'listener' is not NULL. This helps to simplify a matcher's - // implementation when it doesn't care about the performance, as it - // can talk to 'listener' without checking its validity first. - // However, in order to implement dummy listeners efficiently, - // listener->stream() may be NULL. - virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0; - - // Describes this matcher to an ostream. The function should print - // a verb phrase that describes the property a value matching this - // matcher should have. The subject of the verb phrase is the value - // being matched. For example, the DescribeTo() method of the Gt(7) - // matcher prints "is greater than 7". - virtual void DescribeTo(::std::ostream* os) const = 0; - - // Describes the negation of this matcher to an ostream. For - // example, if the description of this matcher is "is greater than - // 7", the negated description could be "is not greater than 7". - // You are not required to override this when implementing - // MatcherInterface, but it is highly advised so that your matcher - // can produce good error messages. - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "not ("; - DescribeTo(os); - *os << ")"; - } -}; - -namespace internal { - -// A match result listener that ignores the explanation. -class DummyMatchResultListener : public MatchResultListener { - public: - DummyMatchResultListener() : MatchResultListener(NULL) {} - - private: - GTEST_DISALLOW_COPY_AND_ASSIGN_(DummyMatchResultListener); -}; - -// A match result listener that forwards the explanation to a given -// ostream. The difference between this and MatchResultListener is -// that the former is concrete. -class StreamMatchResultListener : public MatchResultListener { - public: - explicit StreamMatchResultListener(::std::ostream* os) - : MatchResultListener(os) {} - - private: - GTEST_DISALLOW_COPY_AND_ASSIGN_(StreamMatchResultListener); -}; - -// A match result listener that stores the explanation in a string. -class StringMatchResultListener : public MatchResultListener { - public: - StringMatchResultListener() : MatchResultListener(&ss_) {} - - // Returns the explanation heard so far. - internal::string str() const { return ss_.str(); } - - private: - ::std::stringstream ss_; - - GTEST_DISALLOW_COPY_AND_ASSIGN_(StringMatchResultListener); -}; - -// An internal class for implementing Matcher<T>, which will derive -// from it. We put functionalities common to all Matcher<T> -// specializations here to avoid code duplication. -template <typename T> -class MatcherBase { - public: - // Returns true iff the matcher matches x; also explains the match - // result to 'listener'. - bool MatchAndExplain(T x, MatchResultListener* listener) const { - return impl_->MatchAndExplain(x, listener); - } - - // Returns true iff this matcher matches x. - bool Matches(T x) const { - DummyMatchResultListener dummy; - return MatchAndExplain(x, &dummy); - } - - // Describes this matcher to an ostream. - void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); } - - // Describes the negation of this matcher to an ostream. - void DescribeNegationTo(::std::ostream* os) const { - impl_->DescribeNegationTo(os); - } - - // Explains why x matches, or doesn't match, the matcher. - void ExplainMatchResultTo(T x, ::std::ostream* os) const { - StreamMatchResultListener listener(os); - MatchAndExplain(x, &listener); - } - - protected: - MatcherBase() {} - - // Constructs a matcher from its implementation. - explicit MatcherBase(const MatcherInterface<T>* impl) - : impl_(impl) {} - - virtual ~MatcherBase() {} - - private: - // shared_ptr (util/gtl/shared_ptr.h) and linked_ptr have similar - // interfaces. The former dynamically allocates a chunk of memory - // to hold the reference count, while the latter tracks all - // references using a circular linked list without allocating - // memory. It has been observed that linked_ptr performs better in - // typical scenarios. However, shared_ptr can out-perform - // linked_ptr when there are many more uses of the copy constructor - // than the default constructor. - // - // If performance becomes a problem, we should see if using - // shared_ptr helps. - ::testing::internal::linked_ptr<const MatcherInterface<T> > impl_; -}; - -} // namespace internal - -// A Matcher<T> is a copyable and IMMUTABLE (except by assignment) -// object that can check whether a value of type T matches. The -// implementation of Matcher<T> is just a linked_ptr to const -// MatcherInterface<T>, so copying is fairly cheap. Don't inherit -// from Matcher! -template <typename T> -class Matcher : public internal::MatcherBase<T> { - public: - // Constructs a null matcher. Needed for storing Matcher objects in STL - // containers. A default-constructed matcher is not yet initialized. You - // cannot use it until a valid value has been assigned to it. - Matcher() {} - - // Constructs a matcher from its implementation. - explicit Matcher(const MatcherInterface<T>* impl) - : internal::MatcherBase<T>(impl) {} - - // Implicit constructor here allows people to write - // EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes - Matcher(T value); // NOLINT -}; - -// The following two specializations allow the user to write str -// instead of Eq(str) and "foo" instead of Eq("foo") when a string -// matcher is expected. -template <> -class Matcher<const internal::string&> - : public internal::MatcherBase<const internal::string&> { - public: - Matcher() {} - - explicit Matcher(const MatcherInterface<const internal::string&>* impl) - : internal::MatcherBase<const internal::string&>(impl) {} - - // Allows the user to write str instead of Eq(str) sometimes, where - // str is a string object. - Matcher(const internal::string& s); // NOLINT - - // Allows the user to write "foo" instead of Eq("foo") sometimes. - Matcher(const char* s); // NOLINT -}; - -template <> -class Matcher<internal::string> - : public internal::MatcherBase<internal::string> { - public: - Matcher() {} - - explicit Matcher(const MatcherInterface<internal::string>* impl) - : internal::MatcherBase<internal::string>(impl) {} - - // Allows the user to write str instead of Eq(str) sometimes, where - // str is a string object. - Matcher(const internal::string& s); // NOLINT - - // Allows the user to write "foo" instead of Eq("foo") sometimes. - Matcher(const char* s); // NOLINT -}; - -// The PolymorphicMatcher class template makes it easy to implement a -// polymorphic matcher (i.e. a matcher that can match values of more -// than one type, e.g. Eq(n) and NotNull()). -// -// To define a polymorphic matcher, a user should provide an Impl -// class that has a DescribeTo() method and a DescribeNegationTo() -// method, and define a member function (or member function template) -// -// bool MatchAndExplain(const Value& value, -// MatchResultListener* listener) const; -// -// See the definition of NotNull() for a complete example. -template <class Impl> -class PolymorphicMatcher { - public: - explicit PolymorphicMatcher(const Impl& an_impl) : impl_(an_impl) {} - - // Returns a mutable reference to the underlying matcher - // implementation object. - Impl& mutable_impl() { return impl_; } - - // Returns an immutable reference to the underlying matcher - // implementation object. - const Impl& impl() const { return impl_; } - - template <typename T> - operator Matcher<T>() const { - return Matcher<T>(new MonomorphicImpl<T>(impl_)); - } - - private: - template <typename T> - class MonomorphicImpl : public MatcherInterface<T> { - public: - explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {} - - virtual void DescribeTo(::std::ostream* os) const { - impl_.DescribeTo(os); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - impl_.DescribeNegationTo(os); - } - - virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { - return impl_.MatchAndExplain(x, listener); - } - - private: - const Impl impl_; - - GTEST_DISALLOW_ASSIGN_(MonomorphicImpl); - }; - - Impl impl_; - - GTEST_DISALLOW_ASSIGN_(PolymorphicMatcher); -}; - -// Creates a matcher from its implementation. This is easier to use -// than the Matcher<T> constructor as it doesn't require you to -// explicitly write the template argument, e.g. -// -// MakeMatcher(foo); -// vs -// Matcher<const string&>(foo); -template <typename T> -inline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) { - return Matcher<T>(impl); -}; - -// Creates a polymorphic matcher from its implementation. This is -// easier to use than the PolymorphicMatcher<Impl> constructor as it -// doesn't require you to explicitly write the template argument, e.g. -// -// MakePolymorphicMatcher(foo); -// vs -// PolymorphicMatcher<TypeOfFoo>(foo); -template <class Impl> -inline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) { - return PolymorphicMatcher<Impl>(impl); -} - -// In order to be safe and clear, casting between different matcher -// types is done explicitly via MatcherCast<T>(m), which takes a -// matcher m and returns a Matcher<T>. It compiles only when T can be -// statically converted to the argument type of m. -template <typename T, typename M> -Matcher<T> MatcherCast(M m); - -// Implements SafeMatcherCast(). -// -// We use an intermediate class to do the actual safe casting as Nokia's -// Symbian compiler cannot decide between -// template <T, M> ... (M) and -// template <T, U> ... (const Matcher<U>&) -// for function templates but can for member function templates. -template <typename T> -class SafeMatcherCastImpl { - public: - // This overload handles polymorphic matchers only since monomorphic - // matchers are handled by the next one. - template <typename M> - static inline Matcher<T> Cast(M polymorphic_matcher) { - return Matcher<T>(polymorphic_matcher); - } - - // This overload handles monomorphic matchers. - // - // In general, if type T can be implicitly converted to type U, we can - // safely convert a Matcher<U> to a Matcher<T> (i.e. Matcher is - // contravariant): just keep a copy of the original Matcher<U>, convert the - // argument from type T to U, and then pass it to the underlying Matcher<U>. - // The only exception is when U is a reference and T is not, as the - // underlying Matcher<U> may be interested in the argument's address, which - // is not preserved in the conversion from T to U. - template <typename U> - static inline Matcher<T> Cast(const Matcher<U>& matcher) { - // Enforce that T can be implicitly converted to U. - GTEST_COMPILE_ASSERT_((internal::ImplicitlyConvertible<T, U>::value), - T_must_be_implicitly_convertible_to_U); - // Enforce that we are not converting a non-reference type T to a reference - // type U. - GTEST_COMPILE_ASSERT_( - internal::is_reference<T>::value || !internal::is_reference<U>::value, - cannot_convert_non_referentce_arg_to_reference); - // In case both T and U are arithmetic types, enforce that the - // conversion is not lossy. - typedef GTEST_REMOVE_REFERENCE_AND_CONST_(T) RawT; - typedef GTEST_REMOVE_REFERENCE_AND_CONST_(U) RawU; - const bool kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther; - const bool kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther; - GTEST_COMPILE_ASSERT_( - kTIsOther || kUIsOther || - (internal::LosslessArithmeticConvertible<RawT, RawU>::value), - conversion_of_arithmetic_types_must_be_lossless); - return MatcherCast<T>(matcher); - } -}; - -template <typename T, typename M> -inline Matcher<T> SafeMatcherCast(const M& polymorphic_matcher) { - return SafeMatcherCastImpl<T>::Cast(polymorphic_matcher); -} - -// A<T>() returns a matcher that matches any value of type T. -template <typename T> -Matcher<T> A(); - -// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION -// and MUST NOT BE USED IN USER CODE!!! -namespace internal { - -// If the explanation is not empty, prints it to the ostream. -inline void PrintIfNotEmpty(const internal::string& explanation, - std::ostream* os) { - if (explanation != "" && os != NULL) { - *os << ", " << explanation; - } -} - -// Returns true if the given type name is easy to read by a human. -// This is used to decide whether printing the type of a value might -// be helpful. -inline bool IsReadableTypeName(const string& type_name) { - // We consider a type name readable if it's short or doesn't contain - // a template or function type. - return (type_name.length() <= 20 || - type_name.find_first_of("<(") == string::npos); -} - -// Matches the value against the given matcher, prints the value and explains -// the match result to the listener. Returns the match result. -// 'listener' must not be NULL. -// Value cannot be passed by const reference, because some matchers take a -// non-const argument. -template <typename Value, typename T> -bool MatchPrintAndExplain(Value& value, const Matcher<T>& matcher, - MatchResultListener* listener) { - if (!listener->IsInterested()) { - // If the listener is not interested, we do not need to construct the - // inner explanation. - return matcher.Matches(value); - } - - StringMatchResultListener inner_listener; - const bool match = matcher.MatchAndExplain(value, &inner_listener); - - UniversalPrint(value, listener->stream()); -#if GTEST_HAS_RTTI - const string& type_name = GetTypeName<Value>(); - if (IsReadableTypeName(type_name)) - *listener->stream() << " (of type " << type_name << ")"; -#endif - PrintIfNotEmpty(inner_listener.str(), listener->stream()); - - return match; -} - -// An internal helper class for doing compile-time loop on a tuple's -// fields. -template <size_t N> -class TuplePrefix { - public: - // TuplePrefix<N>::Matches(matcher_tuple, value_tuple) returns true - // iff the first N fields of matcher_tuple matches the first N - // fields of value_tuple, respectively. - template <typename MatcherTuple, typename ValueTuple> - static bool Matches(const MatcherTuple& matcher_tuple, - const ValueTuple& value_tuple) { - using ::std::tr1::get; - return TuplePrefix<N - 1>::Matches(matcher_tuple, value_tuple) - && get<N - 1>(matcher_tuple).Matches(get<N - 1>(value_tuple)); - } - - // TuplePrefix<N>::ExplainMatchFailuresTo(matchers, values, os) - // describes failures in matching the first N fields of matchers - // against the first N fields of values. If there is no failure, - // nothing will be streamed to os. - template <typename MatcherTuple, typename ValueTuple> - static void ExplainMatchFailuresTo(const MatcherTuple& matchers, - const ValueTuple& values, - ::std::ostream* os) { - using ::std::tr1::tuple_element; - using ::std::tr1::get; - - // First, describes failures in the first N - 1 fields. - TuplePrefix<N - 1>::ExplainMatchFailuresTo(matchers, values, os); - - // Then describes the failure (if any) in the (N - 1)-th (0-based) - // field. - typename tuple_element<N - 1, MatcherTuple>::type matcher = - get<N - 1>(matchers); - typedef typename tuple_element<N - 1, ValueTuple>::type Value; - Value value = get<N - 1>(values); - StringMatchResultListener listener; - if (!matcher.MatchAndExplain(value, &listener)) { - // TODO(wan): include in the message the name of the parameter - // as used in MOCK_METHOD*() when possible. - *os << " Expected arg #" << N - 1 << ": "; - get<N - 1>(matchers).DescribeTo(os); - *os << "\n Actual: "; - // We remove the reference in type Value to prevent the - // universal printer from printing the address of value, which - // isn't interesting to the user most of the time. The - // matcher's MatchAndExplain() method handles the case when - // the address is interesting. - internal::UniversalPrint(value, os); - PrintIfNotEmpty(listener.str(), os); - *os << "\n"; - } - } -}; - -// The base case. -template <> -class TuplePrefix<0> { - public: - template <typename MatcherTuple, typename ValueTuple> - static bool Matches(const MatcherTuple& /* matcher_tuple */, - const ValueTuple& /* value_tuple */) { - return true; - } - - template <typename MatcherTuple, typename ValueTuple> - static void ExplainMatchFailuresTo(const MatcherTuple& /* matchers */, - const ValueTuple& /* values */, - ::std::ostream* /* os */) {} -}; - -// TupleMatches(matcher_tuple, value_tuple) returns true iff all -// matchers in matcher_tuple match the corresponding fields in -// value_tuple. It is a compiler error if matcher_tuple and -// value_tuple have different number of fields or incompatible field -// types. -template <typename MatcherTuple, typename ValueTuple> -bool TupleMatches(const MatcherTuple& matcher_tuple, - const ValueTuple& value_tuple) { - using ::std::tr1::tuple_size; - // Makes sure that matcher_tuple and value_tuple have the same - // number of fields. - GTEST_COMPILE_ASSERT_(tuple_size<MatcherTuple>::value == - tuple_size<ValueTuple>::value, - matcher_and_value_have_different_numbers_of_fields); - return TuplePrefix<tuple_size<ValueTuple>::value>:: - Matches(matcher_tuple, value_tuple); -} - -// Describes failures in matching matchers against values. If there -// is no failure, nothing will be streamed to os. -template <typename MatcherTuple, typename ValueTuple> -void ExplainMatchFailureTupleTo(const MatcherTuple& matchers, - const ValueTuple& values, - ::std::ostream* os) { - using ::std::tr1::tuple_size; - TuplePrefix<tuple_size<MatcherTuple>::value>::ExplainMatchFailuresTo( - matchers, values, os); -} - -// The MatcherCastImpl class template is a helper for implementing -// MatcherCast(). We need this helper in order to partially -// specialize the implementation of MatcherCast() (C++ allows -// class/struct templates to be partially specialized, but not -// function templates.). - -// This general version is used when MatcherCast()'s argument is a -// polymorphic matcher (i.e. something that can be converted to a -// Matcher but is not one yet; for example, Eq(value)). -template <typename T, typename M> -class MatcherCastImpl { - public: - static Matcher<T> Cast(M polymorphic_matcher) { - return Matcher<T>(polymorphic_matcher); - } -}; - -// This more specialized version is used when MatcherCast()'s argument -// is already a Matcher. This only compiles when type T can be -// statically converted to type U. -template <typename T, typename U> -class MatcherCastImpl<T, Matcher<U> > { - public: - static Matcher<T> Cast(const Matcher<U>& source_matcher) { - return Matcher<T>(new Impl(source_matcher)); - } - - private: - class Impl : public MatcherInterface<T> { - public: - explicit Impl(const Matcher<U>& source_matcher) - : source_matcher_(source_matcher) {} - - // We delegate the matching logic to the source matcher. - virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { - return source_matcher_.MatchAndExplain(static_cast<U>(x), listener); - } - - virtual void DescribeTo(::std::ostream* os) const { - source_matcher_.DescribeTo(os); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - source_matcher_.DescribeNegationTo(os); - } - - private: - const Matcher<U> source_matcher_; - - GTEST_DISALLOW_ASSIGN_(Impl); - }; -}; - -// This even more specialized version is used for efficiently casting -// a matcher to its own type. -template <typename T> -class MatcherCastImpl<T, Matcher<T> > { - public: - static Matcher<T> Cast(const Matcher<T>& matcher) { return matcher; } -}; - -// Implements A<T>(). -template <typename T> -class AnyMatcherImpl : public MatcherInterface<T> { - public: - virtual bool MatchAndExplain( - T /* x */, MatchResultListener* /* listener */) const { return true; } - virtual void DescribeTo(::std::ostream* os) const { *os << "is anything"; } - virtual void DescribeNegationTo(::std::ostream* os) const { - // This is mostly for completeness' safe, as it's not very useful - // to write Not(A<bool>()). However we cannot completely rule out - // such a possibility, and it doesn't hurt to be prepared. - *os << "never matches"; - } -}; - -// Implements _, a matcher that matches any value of any -// type. This is a polymorphic matcher, so we need a template type -// conversion operator to make it appearing as a Matcher<T> for any -// type T. -class AnythingMatcher { - public: - template <typename T> - operator Matcher<T>() const { return A<T>(); } -}; - -// Implements a matcher that compares a given value with a -// pre-supplied value using one of the ==, <=, <, etc, operators. The -// two values being compared don't have to have the same type. -// -// The matcher defined here is polymorphic (for example, Eq(5) can be -// used to match an int, a short, a double, etc). Therefore we use -// a template type conversion operator in the implementation. -// -// We define this as a macro in order to eliminate duplicated source -// code. -// -// The following template definition assumes that the Rhs parameter is -// a "bare" type (i.e. neither 'const T' nor 'T&'). -#define GMOCK_IMPLEMENT_COMPARISON_MATCHER_( \ - name, op, relation, negated_relation) \ - template <typename Rhs> class name##Matcher { \ - public: \ - explicit name##Matcher(const Rhs& rhs) : rhs_(rhs) {} \ - template <typename Lhs> \ - operator Matcher<Lhs>() const { \ - return MakeMatcher(new Impl<Lhs>(rhs_)); \ - } \ - private: \ - template <typename Lhs> \ - class Impl : public MatcherInterface<Lhs> { \ - public: \ - explicit Impl(const Rhs& rhs) : rhs_(rhs) {} \ - virtual bool MatchAndExplain(\ - Lhs lhs, MatchResultListener* /* listener */) const { \ - return lhs op rhs_; \ - } \ - virtual void DescribeTo(::std::ostream* os) const { \ - *os << relation " "; \ - UniversalPrint(rhs_, os); \ - } \ - virtual void DescribeNegationTo(::std::ostream* os) const { \ - *os << negated_relation " "; \ - UniversalPrint(rhs_, os); \ - } \ - private: \ - Rhs rhs_; \ - GTEST_DISALLOW_ASSIGN_(Impl); \ - }; \ - Rhs rhs_; \ - GTEST_DISALLOW_ASSIGN_(name##Matcher); \ - } - -// Implements Eq(v), Ge(v), Gt(v), Le(v), Lt(v), and Ne(v) -// respectively. -GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Eq, ==, "is equal to", "isn't equal to"); -GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Ge, >=, "is >=", "isn't >="); -GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Gt, >, "is >", "isn't >"); -GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Le, <=, "is <=", "isn't <="); -GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Lt, <, "is <", "isn't <"); -GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Ne, !=, "isn't equal to", "is equal to"); - -#undef GMOCK_IMPLEMENT_COMPARISON_MATCHER_ - -// Implements the polymorphic IsNull() matcher, which matches any raw or smart -// pointer that is NULL. -class IsNullMatcher { - public: - template <typename Pointer> - bool MatchAndExplain(const Pointer& p, - MatchResultListener* /* listener */) const { - return GetRawPointer(p) == NULL; - } - - void DescribeTo(::std::ostream* os) const { *os << "is NULL"; } - void DescribeNegationTo(::std::ostream* os) const { - *os << "isn't NULL"; - } -}; - -// Implements the polymorphic NotNull() matcher, which matches any raw or smart -// pointer that is not NULL. -class NotNullMatcher { - public: - template <typename Pointer> - bool MatchAndExplain(const Pointer& p, - MatchResultListener* /* listener */) const { - return GetRawPointer(p) != NULL; - } - - void DescribeTo(::std::ostream* os) const { *os << "isn't NULL"; } - void DescribeNegationTo(::std::ostream* os) const { - *os << "is NULL"; - } -}; - -// Ref(variable) matches any argument that is a reference to -// 'variable'. This matcher is polymorphic as it can match any -// super type of the type of 'variable'. -// -// The RefMatcher template class implements Ref(variable). It can -// only be instantiated with a reference type. This prevents a user -// from mistakenly using Ref(x) to match a non-reference function -// argument. For example, the following will righteously cause a -// compiler error: -// -// int n; -// Matcher<int> m1 = Ref(n); // This won't compile. -// Matcher<int&> m2 = Ref(n); // This will compile. -template <typename T> -class RefMatcher; - -template <typename T> -class RefMatcher<T&> { - // Google Mock is a generic framework and thus needs to support - // mocking any function types, including those that take non-const - // reference arguments. Therefore the template parameter T (and - // Super below) can be instantiated to either a const type or a - // non-const type. - public: - // RefMatcher() takes a T& instead of const T&, as we want the - // compiler to catch using Ref(const_value) as a matcher for a - // non-const reference. - explicit RefMatcher(T& x) : object_(x) {} // NOLINT - - template <typename Super> - operator Matcher<Super&>() const { - // By passing object_ (type T&) to Impl(), which expects a Super&, - // we make sure that Super is a super type of T. In particular, - // this catches using Ref(const_value) as a matcher for a - // non-const reference, as you cannot implicitly convert a const - // reference to a non-const reference. - return MakeMatcher(new Impl<Super>(object_)); - } - - private: - template <typename Super> - class Impl : public MatcherInterface<Super&> { - public: - explicit Impl(Super& x) : object_(x) {} // NOLINT - - // MatchAndExplain() takes a Super& (as opposed to const Super&) - // in order to match the interface MatcherInterface<Super&>. - virtual bool MatchAndExplain( - Super& x, MatchResultListener* listener) const { - *listener << "which is located @" << static_cast<const void*>(&x); - return &x == &object_; - } - - virtual void DescribeTo(::std::ostream* os) const { - *os << "references the variable "; - UniversalPrinter<Super&>::Print(object_, os); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "does not reference the variable "; - UniversalPrinter<Super&>::Print(object_, os); - } - - private: - const Super& object_; - - GTEST_DISALLOW_ASSIGN_(Impl); - }; - - T& object_; - - GTEST_DISALLOW_ASSIGN_(RefMatcher); -}; - -// Polymorphic helper functions for narrow and wide string matchers. -inline bool CaseInsensitiveCStringEquals(const char* lhs, const char* rhs) { - return String::CaseInsensitiveCStringEquals(lhs, rhs); -} - -inline bool CaseInsensitiveCStringEquals(const wchar_t* lhs, - const wchar_t* rhs) { - return String::CaseInsensitiveWideCStringEquals(lhs, rhs); -} - -// String comparison for narrow or wide strings that can have embedded NUL -// characters. -template <typename StringType> -bool CaseInsensitiveStringEquals(const StringType& s1, - const StringType& s2) { - // Are the heads equal? - if (!CaseInsensitiveCStringEquals(s1.c_str(), s2.c_str())) { - return false; - } - - // Skip the equal heads. - const typename StringType::value_type nul = 0; - const size_t i1 = s1.find(nul), i2 = s2.find(nul); - - // Are we at the end of either s1 or s2? - if (i1 == StringType::npos || i2 == StringType::npos) { - return i1 == i2; - } - - // Are the tails equal? - return CaseInsensitiveStringEquals(s1.substr(i1 + 1), s2.substr(i2 + 1)); -} - -// String matchers. - -// Implements equality-based string matchers like StrEq, StrCaseNe, and etc. -template <typename StringType> -class StrEqualityMatcher { - public: - typedef typename StringType::const_pointer ConstCharPointer; - - StrEqualityMatcher(const StringType& str, bool expect_eq, - bool case_sensitive) - : string_(str), expect_eq_(expect_eq), case_sensitive_(case_sensitive) {} - - // When expect_eq_ is true, returns true iff s is equal to string_; - // otherwise returns true iff s is not equal to string_. - bool MatchAndExplain(ConstCharPointer s, - MatchResultListener* listener) const { - if (s == NULL) { - return !expect_eq_; - } - return MatchAndExplain(StringType(s), listener); - } - - bool MatchAndExplain(const StringType& s, - MatchResultListener* /* listener */) const { - const bool eq = case_sensitive_ ? s == string_ : - CaseInsensitiveStringEquals(s, string_); - return expect_eq_ == eq; - } - - void DescribeTo(::std::ostream* os) const { - DescribeToHelper(expect_eq_, os); - } - - void DescribeNegationTo(::std::ostream* os) const { - DescribeToHelper(!expect_eq_, os); - } - - private: - void DescribeToHelper(bool expect_eq, ::std::ostream* os) const { - *os << (expect_eq ? "is " : "isn't "); - *os << "equal to "; - if (!case_sensitive_) { - *os << "(ignoring case) "; - } - UniversalPrint(string_, os); - } - - const StringType string_; - const bool expect_eq_; - const bool case_sensitive_; - - GTEST_DISALLOW_ASSIGN_(StrEqualityMatcher); -}; - -// Implements the polymorphic HasSubstr(substring) matcher, which -// can be used as a Matcher<T> as long as T can be converted to a -// string. -template <typename StringType> -class HasSubstrMatcher { - public: - typedef typename StringType::const_pointer ConstCharPointer; - - explicit HasSubstrMatcher(const StringType& substring) - : substring_(substring) {} - - // These overloaded methods allow HasSubstr(substring) to be used as a - // Matcher<T> as long as T can be converted to string. Returns true - // iff s contains substring_ as a substring. - bool MatchAndExplain(ConstCharPointer s, - MatchResultListener* listener) const { - return s != NULL && MatchAndExplain(StringType(s), listener); - } - - bool MatchAndExplain(const StringType& s, - MatchResultListener* /* listener */) const { - return s.find(substring_) != StringType::npos; - } - - // Describes what this matcher matches. - void DescribeTo(::std::ostream* os) const { - *os << "has substring "; - UniversalPrint(substring_, os); - } - - void DescribeNegationTo(::std::ostream* os) const { - *os << "has no substring "; - UniversalPrint(substring_, os); - } - - private: - const StringType substring_; - - GTEST_DISALLOW_ASSIGN_(HasSubstrMatcher); -}; - -// Implements the polymorphic StartsWith(substring) matcher, which -// can be used as a Matcher<T> as long as T can be converted to a -// string. -template <typename StringType> -class StartsWithMatcher { - public: - typedef typename StringType::const_pointer ConstCharPointer; - - explicit StartsWithMatcher(const StringType& prefix) : prefix_(prefix) { - } - - // These overloaded methods allow StartsWith(prefix) to be used as a - // Matcher<T> as long as T can be converted to string. Returns true - // iff s starts with prefix_. - bool MatchAndExplain(ConstCharPointer s, - MatchResultListener* listener) const { - return s != NULL && MatchAndExplain(StringType(s), listener); - } - - bool MatchAndExplain(const StringType& s, - MatchResultListener* /* listener */) const { - return s.length() >= prefix_.length() && - s.substr(0, prefix_.length()) == prefix_; - } - - void DescribeTo(::std::ostream* os) const { - *os << "starts with "; - UniversalPrint(prefix_, os); - } - - void DescribeNegationTo(::std::ostream* os) const { - *os << "doesn't start with "; - UniversalPrint(prefix_, os); - } - - private: - const StringType prefix_; - - GTEST_DISALLOW_ASSIGN_(StartsWithMatcher); -}; - -// Implements the polymorphic EndsWith(substring) matcher, which -// can be used as a Matcher<T> as long as T can be converted to a -// string. -template <typename StringType> -class EndsWithMatcher { - public: - typedef typename StringType::const_pointer ConstCharPointer; - - explicit EndsWithMatcher(const StringType& suffix) : suffix_(suffix) {} - - // These overloaded methods allow EndsWith(suffix) to be used as a - // Matcher<T> as long as T can be converted to string. Returns true - // iff s ends with suffix_. - bool MatchAndExplain(ConstCharPointer s, - MatchResultListener* listener) const { - return s != NULL && MatchAndExplain(StringType(s), listener); - } - - bool MatchAndExplain(const StringType& s, - MatchResultListener* /* listener */) const { - return s.length() >= suffix_.length() && - s.substr(s.length() - suffix_.length()) == suffix_; - } - - void DescribeTo(::std::ostream* os) const { - *os << "ends with "; - UniversalPrint(suffix_, os); - } - - void DescribeNegationTo(::std::ostream* os) const { - *os << "doesn't end with "; - UniversalPrint(suffix_, os); - } - - private: - const StringType suffix_; - - GTEST_DISALLOW_ASSIGN_(EndsWithMatcher); -}; - -// Implements polymorphic matchers MatchesRegex(regex) and -// ContainsRegex(regex), which can be used as a Matcher<T> as long as -// T can be converted to a string. -class MatchesRegexMatcher { - public: - MatchesRegexMatcher(const RE* regex, bool full_match) - : regex_(regex), full_match_(full_match) {} - - // These overloaded methods allow MatchesRegex(regex) to be used as - // a Matcher<T> as long as T can be converted to string. Returns - // true iff s matches regular expression regex. When full_match_ is - // true, a full match is done; otherwise a partial match is done. - bool MatchAndExplain(const char* s, - MatchResultListener* listener) const { - return s != NULL && MatchAndExplain(internal::string(s), listener); - } - - bool MatchAndExplain(const internal::string& s, - MatchResultListener* /* listener */) const { - return full_match_ ? RE::FullMatch(s, *regex_) : - RE::PartialMatch(s, *regex_); - } - - void DescribeTo(::std::ostream* os) const { - *os << (full_match_ ? "matches" : "contains") - << " regular expression "; - UniversalPrinter<internal::string>::Print(regex_->pattern(), os); - } - - void DescribeNegationTo(::std::ostream* os) const { - *os << "doesn't " << (full_match_ ? "match" : "contain") - << " regular expression "; - UniversalPrinter<internal::string>::Print(regex_->pattern(), os); - } - - private: - const internal::linked_ptr<const RE> regex_; - const bool full_match_; - - GTEST_DISALLOW_ASSIGN_(MatchesRegexMatcher); -}; - -// Implements a matcher that compares the two fields of a 2-tuple -// using one of the ==, <=, <, etc, operators. The two fields being -// compared don't have to have the same type. -// -// The matcher defined here is polymorphic (for example, Eq() can be -// used to match a tuple<int, short>, a tuple<const long&, double>, -// etc). Therefore we use a template type conversion operator in the -// implementation. -// -// We define this as a macro in order to eliminate duplicated source -// code. -#define GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(name, op, relation) \ - class name##2Matcher { \ - public: \ - template <typename T1, typename T2> \ - operator Matcher< ::std::tr1::tuple<T1, T2> >() const { \ - return MakeMatcher(new Impl< ::std::tr1::tuple<T1, T2> >); \ - } \ - template <typename T1, typename T2> \ - operator Matcher<const ::std::tr1::tuple<T1, T2>&>() const { \ - return MakeMatcher(new Impl<const ::std::tr1::tuple<T1, T2>&>); \ - } \ - private: \ - template <typename Tuple> \ - class Impl : public MatcherInterface<Tuple> { \ - public: \ - virtual bool MatchAndExplain( \ - Tuple args, \ - MatchResultListener* /* listener */) const { \ - return ::std::tr1::get<0>(args) op ::std::tr1::get<1>(args); \ - } \ - virtual void DescribeTo(::std::ostream* os) const { \ - *os << "are " relation; \ - } \ - virtual void DescribeNegationTo(::std::ostream* os) const { \ - *os << "aren't " relation; \ - } \ - }; \ - } - -// Implements Eq(), Ge(), Gt(), Le(), Lt(), and Ne() respectively. -GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Eq, ==, "an equal pair"); -GMOCK_IMPLEMENT_COMPARISON2_MATCHER_( - Ge, >=, "a pair where the first >= the second"); -GMOCK_IMPLEMENT_COMPARISON2_MATCHER_( - Gt, >, "a pair where the first > the second"); -GMOCK_IMPLEMENT_COMPARISON2_MATCHER_( - Le, <=, "a pair where the first <= the second"); -GMOCK_IMPLEMENT_COMPARISON2_MATCHER_( - Lt, <, "a pair where the first < the second"); -GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Ne, !=, "an unequal pair"); - -#undef GMOCK_IMPLEMENT_COMPARISON2_MATCHER_ - -// Implements the Not(...) matcher for a particular argument type T. -// We do not nest it inside the NotMatcher class template, as that -// will prevent different instantiations of NotMatcher from sharing -// the same NotMatcherImpl<T> class. -template <typename T> -class NotMatcherImpl : public MatcherInterface<T> { - public: - explicit NotMatcherImpl(const Matcher<T>& matcher) - : matcher_(matcher) {} - - virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { - return !matcher_.MatchAndExplain(x, listener); - } - - virtual void DescribeTo(::std::ostream* os) const { - matcher_.DescribeNegationTo(os); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - matcher_.DescribeTo(os); - } - - private: - const Matcher<T> matcher_; - - GTEST_DISALLOW_ASSIGN_(NotMatcherImpl); -}; - -// Implements the Not(m) matcher, which matches a value that doesn't -// match matcher m. -template <typename InnerMatcher> -class NotMatcher { - public: - explicit NotMatcher(InnerMatcher matcher) : matcher_(matcher) {} - - // This template type conversion operator allows Not(m) to be used - // to match any type m can match. - template <typename T> - operator Matcher<T>() const { - return Matcher<T>(new NotMatcherImpl<T>(SafeMatcherCast<T>(matcher_))); - } - - private: - InnerMatcher matcher_; - - GTEST_DISALLOW_ASSIGN_(NotMatcher); -}; - -// Implements the AllOf(m1, m2) matcher for a particular argument type -// T. We do not nest it inside the BothOfMatcher class template, as -// that will prevent different instantiations of BothOfMatcher from -// sharing the same BothOfMatcherImpl<T> class. -template <typename T> -class BothOfMatcherImpl : public MatcherInterface<T> { - public: - BothOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2) - : matcher1_(matcher1), matcher2_(matcher2) {} - - virtual void DescribeTo(::std::ostream* os) const { - *os << "("; - matcher1_.DescribeTo(os); - *os << ") and ("; - matcher2_.DescribeTo(os); - *os << ")"; - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "("; - matcher1_.DescribeNegationTo(os); - *os << ") or ("; - matcher2_.DescribeNegationTo(os); - *os << ")"; - } - - virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { - // If either matcher1_ or matcher2_ doesn't match x, we only need - // to explain why one of them fails. - StringMatchResultListener listener1; - if (!matcher1_.MatchAndExplain(x, &listener1)) { - *listener << listener1.str(); - return false; - } - - StringMatchResultListener listener2; - if (!matcher2_.MatchAndExplain(x, &listener2)) { - *listener << listener2.str(); - return false; - } - - // Otherwise we need to explain why *both* of them match. - const internal::string s1 = listener1.str(); - const internal::string s2 = listener2.str(); - - if (s1 == "") { - *listener << s2; - } else { - *listener << s1; - if (s2 != "") { - *listener << ", and " << s2; - } - } - return true; - } - - private: - const Matcher<T> matcher1_; - const Matcher<T> matcher2_; - - GTEST_DISALLOW_ASSIGN_(BothOfMatcherImpl); -}; - -// Used for implementing the AllOf(m_1, ..., m_n) matcher, which -// matches a value that matches all of the matchers m_1, ..., and m_n. -template <typename Matcher1, typename Matcher2> -class BothOfMatcher { - public: - BothOfMatcher(Matcher1 matcher1, Matcher2 matcher2) - : matcher1_(matcher1), matcher2_(matcher2) {} - - // This template type conversion operator allows a - // BothOfMatcher<Matcher1, Matcher2> object to match any type that - // both Matcher1 and Matcher2 can match. - template <typename T> - operator Matcher<T>() const { - return Matcher<T>(new BothOfMatcherImpl<T>(SafeMatcherCast<T>(matcher1_), - SafeMatcherCast<T>(matcher2_))); - } - - private: - Matcher1 matcher1_; - Matcher2 matcher2_; - - GTEST_DISALLOW_ASSIGN_(BothOfMatcher); -}; - -// Implements the AnyOf(m1, m2) matcher for a particular argument type -// T. We do not nest it inside the AnyOfMatcher class template, as -// that will prevent different instantiations of AnyOfMatcher from -// sharing the same EitherOfMatcherImpl<T> class. -template <typename T> -class EitherOfMatcherImpl : public MatcherInterface<T> { - public: - EitherOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2) - : matcher1_(matcher1), matcher2_(matcher2) {} - - virtual void DescribeTo(::std::ostream* os) const { - *os << "("; - matcher1_.DescribeTo(os); - *os << ") or ("; - matcher2_.DescribeTo(os); - *os << ")"; - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "("; - matcher1_.DescribeNegationTo(os); - *os << ") and ("; - matcher2_.DescribeNegationTo(os); - *os << ")"; - } - - virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { - // If either matcher1_ or matcher2_ matches x, we just need to - // explain why *one* of them matches. - StringMatchResultListener listener1; - if (matcher1_.MatchAndExplain(x, &listener1)) { - *listener << listener1.str(); - return true; - } - - StringMatchResultListener listener2; - if (matcher2_.MatchAndExplain(x, &listener2)) { - *listener << listener2.str(); - return true; - } - - // Otherwise we need to explain why *both* of them fail. - const internal::string s1 = listener1.str(); - const internal::string s2 = listener2.str(); - - if (s1 == "") { - *listener << s2; - } else { - *listener << s1; - if (s2 != "") { - *listener << ", and " << s2; - } - } - return false; - } - - private: - const Matcher<T> matcher1_; - const Matcher<T> matcher2_; - - GTEST_DISALLOW_ASSIGN_(EitherOfMatcherImpl); -}; - -// Used for implementing the AnyOf(m_1, ..., m_n) matcher, which -// matches a value that matches at least one of the matchers m_1, ..., -// and m_n. -template <typename Matcher1, typename Matcher2> -class EitherOfMatcher { - public: - EitherOfMatcher(Matcher1 matcher1, Matcher2 matcher2) - : matcher1_(matcher1), matcher2_(matcher2) {} - - // This template type conversion operator allows a - // EitherOfMatcher<Matcher1, Matcher2> object to match any type that - // both Matcher1 and Matcher2 can match. - template <typename T> - operator Matcher<T>() const { - return Matcher<T>(new EitherOfMatcherImpl<T>( - SafeMatcherCast<T>(matcher1_), SafeMatcherCast<T>(matcher2_))); - } - - private: - Matcher1 matcher1_; - Matcher2 matcher2_; - - GTEST_DISALLOW_ASSIGN_(EitherOfMatcher); -}; - -// Used for implementing Truly(pred), which turns a predicate into a -// matcher. -template <typename Predicate> -class TrulyMatcher { - public: - explicit TrulyMatcher(Predicate pred) : predicate_(pred) {} - - // This method template allows Truly(pred) to be used as a matcher - // for type T where T is the argument type of predicate 'pred'. The - // argument is passed by reference as the predicate may be - // interested in the address of the argument. - template <typename T> - bool MatchAndExplain(T& x, // NOLINT - MatchResultListener* /* listener */) const { - // Without the if-statement, MSVC sometimes warns about converting - // a value to bool (warning 4800). - // - // We cannot write 'return !!predicate_(x);' as that doesn't work - // when predicate_(x) returns a class convertible to bool but - // having no operator!(). - if (predicate_(x)) - return true; - return false; - } - - void DescribeTo(::std::ostream* os) const { - *os << "satisfies the given predicate"; - } - - void DescribeNegationTo(::std::ostream* os) const { - *os << "doesn't satisfy the given predicate"; - } - - private: - Predicate predicate_; - - GTEST_DISALLOW_ASSIGN_(TrulyMatcher); -}; - -// Used for implementing Matches(matcher), which turns a matcher into -// a predicate. -template <typename M> -class MatcherAsPredicate { - public: - explicit MatcherAsPredicate(M matcher) : matcher_(matcher) {} - - // This template operator() allows Matches(m) to be used as a - // predicate on type T where m is a matcher on type T. - // - // The argument x is passed by reference instead of by value, as - // some matcher may be interested in its address (e.g. as in - // Matches(Ref(n))(x)). - template <typename T> - bool operator()(const T& x) const { - // We let matcher_ commit to a particular type here instead of - // when the MatcherAsPredicate object was constructed. This - // allows us to write Matches(m) where m is a polymorphic matcher - // (e.g. Eq(5)). - // - // If we write Matcher<T>(matcher_).Matches(x) here, it won't - // compile when matcher_ has type Matcher<const T&>; if we write - // Matcher<const T&>(matcher_).Matches(x) here, it won't compile - // when matcher_ has type Matcher<T>; if we just write - // matcher_.Matches(x), it won't compile when matcher_ is - // polymorphic, e.g. Eq(5). - // - // MatcherCast<const T&>() is necessary for making the code work - // in all of the above situations. - return MatcherCast<const T&>(matcher_).Matches(x); - } - - private: - M matcher_; - - GTEST_DISALLOW_ASSIGN_(MatcherAsPredicate); -}; - -// For implementing ASSERT_THAT() and EXPECT_THAT(). The template -// argument M must be a type that can be converted to a matcher. -template <typename M> -class PredicateFormatterFromMatcher { - public: - explicit PredicateFormatterFromMatcher(const M& m) : matcher_(m) {} - - // This template () operator allows a PredicateFormatterFromMatcher - // object to act as a predicate-formatter suitable for using with - // Google Test's EXPECT_PRED_FORMAT1() macro. - template <typename T> - AssertionResult operator()(const char* value_text, const T& x) const { - // We convert matcher_ to a Matcher<const T&> *now* instead of - // when the PredicateFormatterFromMatcher object was constructed, - // as matcher_ may be polymorphic (e.g. NotNull()) and we won't - // know which type to instantiate it to until we actually see the - // type of x here. - // - // We write MatcherCast<const T&>(matcher_) instead of - // Matcher<const T&>(matcher_), as the latter won't compile when - // matcher_ has type Matcher<T> (e.g. An<int>()). - const Matcher<const T&> matcher = MatcherCast<const T&>(matcher_); - StringMatchResultListener listener; - if (MatchPrintAndExplain(x, matcher, &listener)) - return AssertionSuccess(); - - ::std::stringstream ss; - ss << "Value of: " << value_text << "\n" - << "Expected: "; - matcher.DescribeTo(&ss); - ss << "\n Actual: " << listener.str(); - return AssertionFailure() << ss.str(); - } - - private: - const M matcher_; - - GTEST_DISALLOW_ASSIGN_(PredicateFormatterFromMatcher); -}; - -// A helper function for converting a matcher to a predicate-formatter -// without the user needing to explicitly write the type. This is -// used for implementing ASSERT_THAT() and EXPECT_THAT(). -template <typename M> -inline PredicateFormatterFromMatcher<M> -MakePredicateFormatterFromMatcher(const M& matcher) { - return PredicateFormatterFromMatcher<M>(matcher); -} - -// Implements the polymorphic floating point equality matcher, which -// matches two float values using ULP-based approximation. The -// template is meant to be instantiated with FloatType being either -// float or double. -template <typename FloatType> -class FloatingEqMatcher { - public: - // Constructor for FloatingEqMatcher. - // The matcher's input will be compared with rhs. The matcher treats two - // NANs as equal if nan_eq_nan is true. Otherwise, under IEEE standards, - // equality comparisons between NANs will always return false. - FloatingEqMatcher(FloatType rhs, bool nan_eq_nan) : - rhs_(rhs), nan_eq_nan_(nan_eq_nan) {} - - // Implements floating point equality matcher as a Matcher<T>. - template <typename T> - class Impl : public MatcherInterface<T> { - public: - Impl(FloatType rhs, bool nan_eq_nan) : - rhs_(rhs), nan_eq_nan_(nan_eq_nan) {} - - virtual bool MatchAndExplain(T value, - MatchResultListener* /* listener */) const { - const FloatingPoint<FloatType> lhs(value), rhs(rhs_); - - // Compares NaNs first, if nan_eq_nan_ is true. - if (nan_eq_nan_ && lhs.is_nan()) { - return rhs.is_nan(); - } - - return lhs.AlmostEquals(rhs); - } - - virtual void DescribeTo(::std::ostream* os) const { - // os->precision() returns the previously set precision, which we - // store to restore the ostream to its original configuration - // after outputting. - const ::std::streamsize old_precision = os->precision( - ::std::numeric_limits<FloatType>::digits10 + 2); - if (FloatingPoint<FloatType>(rhs_).is_nan()) { - if (nan_eq_nan_) { - *os << "is NaN"; - } else { - *os << "never matches"; - } - } else { - *os << "is approximately " << rhs_; - } - os->precision(old_precision); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - // As before, get original precision. - const ::std::streamsize old_precision = os->precision( - ::std::numeric_limits<FloatType>::digits10 + 2); - if (FloatingPoint<FloatType>(rhs_).is_nan()) { - if (nan_eq_nan_) { - *os << "isn't NaN"; - } else { - *os << "is anything"; - } - } else { - *os << "isn't approximately " << rhs_; - } - // Restore original precision. - os->precision(old_precision); - } - - private: - const FloatType rhs_; - const bool nan_eq_nan_; - - GTEST_DISALLOW_ASSIGN_(Impl); - }; - - // The following 3 type conversion operators allow FloatEq(rhs) and - // NanSensitiveFloatEq(rhs) to be used as a Matcher<float>, a - // Matcher<const float&>, or a Matcher<float&>, but nothing else. - // (While Google's C++ coding style doesn't allow arguments passed - // by non-const reference, we may see them in code not conforming to - // the style. Therefore Google Mock needs to support them.) - operator Matcher<FloatType>() const { - return MakeMatcher(new Impl<FloatType>(rhs_, nan_eq_nan_)); - } - - operator Matcher<const FloatType&>() const { - return MakeMatcher(new Impl<const FloatType&>(rhs_, nan_eq_nan_)); - } - - operator Matcher<FloatType&>() const { - return MakeMatcher(new Impl<FloatType&>(rhs_, nan_eq_nan_)); - } - private: - const FloatType rhs_; - const bool nan_eq_nan_; - - GTEST_DISALLOW_ASSIGN_(FloatingEqMatcher); -}; - -// Implements the Pointee(m) matcher for matching a pointer whose -// pointee matches matcher m. The pointer can be either raw or smart. -template <typename InnerMatcher> -class PointeeMatcher { - public: - explicit PointeeMatcher(const InnerMatcher& matcher) : matcher_(matcher) {} - - // This type conversion operator template allows Pointee(m) to be - // used as a matcher for any pointer type whose pointee type is - // compatible with the inner matcher, where type Pointer can be - // either a raw pointer or a smart pointer. - // - // The reason we do this instead of relying on - // MakePolymorphicMatcher() is that the latter is not flexible - // enough for implementing the DescribeTo() method of Pointee(). - template <typename Pointer> - operator Matcher<Pointer>() const { - return MakeMatcher(new Impl<Pointer>(matcher_)); - } - - private: - // The monomorphic implementation that works for a particular pointer type. - template <typename Pointer> - class Impl : public MatcherInterface<Pointer> { - public: - typedef typename PointeeOf<GTEST_REMOVE_CONST_( // NOLINT - GTEST_REMOVE_REFERENCE_(Pointer))>::type Pointee; - - explicit Impl(const InnerMatcher& matcher) - : matcher_(MatcherCast<const Pointee&>(matcher)) {} - - virtual void DescribeTo(::std::ostream* os) const { - *os << "points to a value that "; - matcher_.DescribeTo(os); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "does not point to a value that "; - matcher_.DescribeTo(os); - } - - virtual bool MatchAndExplain(Pointer pointer, - MatchResultListener* listener) const { - if (GetRawPointer(pointer) == NULL) - return false; - - *listener << "which points to "; - return MatchPrintAndExplain(*pointer, matcher_, listener); - } - - private: - const Matcher<const Pointee&> matcher_; - - GTEST_DISALLOW_ASSIGN_(Impl); - }; - - const InnerMatcher matcher_; - - GTEST_DISALLOW_ASSIGN_(PointeeMatcher); -}; - -// Implements the Field() matcher for matching a field (i.e. member -// variable) of an object. -template <typename Class, typename FieldType> -class FieldMatcher { - public: - FieldMatcher(FieldType Class::*field, - const Matcher<const FieldType&>& matcher) - : field_(field), matcher_(matcher) {} - - void DescribeTo(::std::ostream* os) const { - *os << "is an object whose given field "; - matcher_.DescribeTo(os); - } - - void DescribeNegationTo(::std::ostream* os) const { - *os << "is an object whose given field "; - matcher_.DescribeNegationTo(os); - } - - template <typename T> - bool MatchAndExplain(const T& value, MatchResultListener* listener) const { - return MatchAndExplainImpl( - typename ::testing::internal:: - is_pointer<GTEST_REMOVE_CONST_(T)>::type(), - value, listener); - } - - private: - // The first argument of MatchAndExplainImpl() is needed to help - // Symbian's C++ compiler choose which overload to use. Its type is - // true_type iff the Field() matcher is used to match a pointer. - bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj, - MatchResultListener* listener) const { - *listener << "whose given field is "; - return MatchPrintAndExplain(obj.*field_, matcher_, listener); - } - - bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p, - MatchResultListener* listener) const { - if (p == NULL) - return false; - - *listener << "which points to an object "; - // Since *p has a field, it must be a class/struct/union type and - // thus cannot be a pointer. Therefore we pass false_type() as - // the first argument. - return MatchAndExplainImpl(false_type(), *p, listener); - } - - const FieldType Class::*field_; - const Matcher<const FieldType&> matcher_; - - GTEST_DISALLOW_ASSIGN_(FieldMatcher); -}; - -// Implements the Property() matcher for matching a property -// (i.e. return value of a getter method) of an object. -template <typename Class, typename PropertyType> -class PropertyMatcher { - public: - // The property may have a reference type, so 'const PropertyType&' - // may cause double references and fail to compile. That's why we - // need GTEST_REFERENCE_TO_CONST, which works regardless of - // PropertyType being a reference or not. - typedef GTEST_REFERENCE_TO_CONST_(PropertyType) RefToConstProperty; - - PropertyMatcher(PropertyType (Class::*property)() const, - const Matcher<RefToConstProperty>& matcher) - : property_(property), matcher_(matcher) {} - - void DescribeTo(::std::ostream* os) const { - *os << "is an object whose given property "; - matcher_.DescribeTo(os); - } - - void DescribeNegationTo(::std::ostream* os) const { - *os << "is an object whose given property "; - matcher_.DescribeNegationTo(os); - } - - template <typename T> - bool MatchAndExplain(const T&value, MatchResultListener* listener) const { - return MatchAndExplainImpl( - typename ::testing::internal:: - is_pointer<GTEST_REMOVE_CONST_(T)>::type(), - value, listener); - } - - private: - // The first argument of MatchAndExplainImpl() is needed to help - // Symbian's C++ compiler choose which overload to use. Its type is - // true_type iff the Property() matcher is used to match a pointer. - bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj, - MatchResultListener* listener) const { - *listener << "whose given property is "; - // Cannot pass the return value (for example, int) to MatchPrintAndExplain, - // which takes a non-const reference as argument. - RefToConstProperty result = (obj.*property_)(); - return MatchPrintAndExplain(result, matcher_, listener); - } - - bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p, - MatchResultListener* listener) const { - if (p == NULL) - return false; - - *listener << "which points to an object "; - // Since *p has a property method, it must be a class/struct/union - // type and thus cannot be a pointer. Therefore we pass - // false_type() as the first argument. - return MatchAndExplainImpl(false_type(), *p, listener); - } - - PropertyType (Class::*property_)() const; - const Matcher<RefToConstProperty> matcher_; - - GTEST_DISALLOW_ASSIGN_(PropertyMatcher); -}; - -// Type traits specifying various features of different functors for ResultOf. -// The default template specifies features for functor objects. -// Functor classes have to typedef argument_type and result_type -// to be compatible with ResultOf. -template <typename Functor> -struct CallableTraits { - typedef typename Functor::result_type ResultType; - typedef Functor StorageType; - - static void CheckIsValid(Functor /* functor */) {} - template <typename T> - static ResultType Invoke(Functor f, T arg) { return f(arg); } -}; - -// Specialization for function pointers. -template <typename ArgType, typename ResType> -struct CallableTraits<ResType(*)(ArgType)> { - typedef ResType ResultType; - typedef ResType(*StorageType)(ArgType); - - static void CheckIsValid(ResType(*f)(ArgType)) { - GTEST_CHECK_(f != NULL) - << "NULL function pointer is passed into ResultOf()."; - } - template <typename T> - static ResType Invoke(ResType(*f)(ArgType), T arg) { - return (*f)(arg); - } -}; - -// Implements the ResultOf() matcher for matching a return value of a -// unary function of an object. -template <typename Callable> -class ResultOfMatcher { - public: - typedef typename CallableTraits<Callable>::ResultType ResultType; - - ResultOfMatcher(Callable callable, const Matcher<ResultType>& matcher) - : callable_(callable), matcher_(matcher) { - CallableTraits<Callable>::CheckIsValid(callable_); - } - - template <typename T> - operator Matcher<T>() const { - return Matcher<T>(new Impl<T>(callable_, matcher_)); - } - - private: - typedef typename CallableTraits<Callable>::StorageType CallableStorageType; - - template <typename T> - class Impl : public MatcherInterface<T> { - public: - Impl(CallableStorageType callable, const Matcher<ResultType>& matcher) - : callable_(callable), matcher_(matcher) {} - - virtual void DescribeTo(::std::ostream* os) const { - *os << "is mapped by the given callable to a value that "; - matcher_.DescribeTo(os); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "is mapped by the given callable to a value that "; - matcher_.DescribeNegationTo(os); - } - - virtual bool MatchAndExplain(T obj, MatchResultListener* listener) const { - *listener << "which is mapped by the given callable to "; - // Cannot pass the return value (for example, int) to - // MatchPrintAndExplain, which takes a non-const reference as argument. - ResultType result = - CallableTraits<Callable>::template Invoke<T>(callable_, obj); - return MatchPrintAndExplain(result, matcher_, listener); - } - - private: - // Functors often define operator() as non-const method even though - // they are actualy stateless. But we need to use them even when - // 'this' is a const pointer. It's the user's responsibility not to - // use stateful callables with ResultOf(), which does't guarantee - // how many times the callable will be invoked. - mutable CallableStorageType callable_; - const Matcher<ResultType> matcher_; - - GTEST_DISALLOW_ASSIGN_(Impl); - }; // class Impl - - const CallableStorageType callable_; - const Matcher<ResultType> matcher_; - - GTEST_DISALLOW_ASSIGN_(ResultOfMatcher); -}; - -// Implements an equality matcher for any STL-style container whose elements -// support ==. This matcher is like Eq(), but its failure explanations provide -// more detailed information that is useful when the container is used as a set. -// The failure message reports elements that are in one of the operands but not -// the other. The failure messages do not report duplicate or out-of-order -// elements in the containers (which don't properly matter to sets, but can -// occur if the containers are vectors or lists, for example). -// -// Uses the container's const_iterator, value_type, operator ==, -// begin(), and end(). -template <typename Container> -class ContainerEqMatcher { - public: - typedef internal::StlContainerView<Container> View; - typedef typename View::type StlContainer; - typedef typename View::const_reference StlContainerReference; - - // We make a copy of rhs in case the elements in it are modified - // after this matcher is created. - explicit ContainerEqMatcher(const Container& rhs) : rhs_(View::Copy(rhs)) { - // Makes sure the user doesn't instantiate this class template - // with a const or reference type. - (void)testing::StaticAssertTypeEq<Container, - GTEST_REMOVE_REFERENCE_AND_CONST_(Container)>(); - } - - void DescribeTo(::std::ostream* os) const { - *os << "equals "; - UniversalPrint(rhs_, os); - } - void DescribeNegationTo(::std::ostream* os) const { - *os << "does not equal "; - UniversalPrint(rhs_, os); - } - - template <typename LhsContainer> - bool MatchAndExplain(const LhsContainer& lhs, - MatchResultListener* listener) const { - // GTEST_REMOVE_CONST_() is needed to work around an MSVC 8.0 bug - // that causes LhsContainer to be a const type sometimes. - typedef internal::StlContainerView<GTEST_REMOVE_CONST_(LhsContainer)> - LhsView; - typedef typename LhsView::type LhsStlContainer; - StlContainerReference lhs_stl_container = LhsView::ConstReference(lhs); - if (lhs_stl_container == rhs_) - return true; - - ::std::ostream* const os = listener->stream(); - if (os != NULL) { - // Something is different. Check for extra values first. - bool printed_header = false; - for (typename LhsStlContainer::const_iterator it = - lhs_stl_container.begin(); - it != lhs_stl_container.end(); ++it) { - if (internal::ArrayAwareFind(rhs_.begin(), rhs_.end(), *it) == - rhs_.end()) { - if (printed_header) { - *os << ", "; - } else { - *os << "which has these unexpected elements: "; - printed_header = true; - } - UniversalPrint(*it, os); - } - } - - // Now check for missing values. - bool printed_header2 = false; - for (typename StlContainer::const_iterator it = rhs_.begin(); - it != rhs_.end(); ++it) { - if (internal::ArrayAwareFind( - lhs_stl_container.begin(), lhs_stl_container.end(), *it) == - lhs_stl_container.end()) { - if (printed_header2) { - *os << ", "; - } else { - *os << (printed_header ? ",\nand" : "which") - << " doesn't have these expected elements: "; - printed_header2 = true; - } - UniversalPrint(*it, os); - } - } - } - - return false; - } - - private: - const StlContainer rhs_; - - GTEST_DISALLOW_ASSIGN_(ContainerEqMatcher); -}; - -// Implements Pointwise(tuple_matcher, rhs_container). tuple_matcher -// must be able to be safely cast to Matcher<tuple<const T1&, const -// T2&> >, where T1 and T2 are the types of elements in the LHS -// container and the RHS container respectively. -template <typename TupleMatcher, typename RhsContainer> -class PointwiseMatcher { - public: - typedef internal::StlContainerView<RhsContainer> RhsView; - typedef typename RhsView::type RhsStlContainer; - typedef typename RhsStlContainer::value_type RhsValue; - - // Like ContainerEq, we make a copy of rhs in case the elements in - // it are modified after this matcher is created. - PointwiseMatcher(const TupleMatcher& tuple_matcher, const RhsContainer& rhs) - : tuple_matcher_(tuple_matcher), rhs_(RhsView::Copy(rhs)) { - // Makes sure the user doesn't instantiate this class template - // with a const or reference type. - (void)testing::StaticAssertTypeEq<RhsContainer, - GTEST_REMOVE_REFERENCE_AND_CONST_(RhsContainer)>(); - } - - template <typename LhsContainer> - operator Matcher<LhsContainer>() const { - return MakeMatcher(new Impl<LhsContainer>(tuple_matcher_, rhs_)); - } - - template <typename LhsContainer> - class Impl : public MatcherInterface<LhsContainer> { - public: - typedef internal::StlContainerView< - GTEST_REMOVE_REFERENCE_AND_CONST_(LhsContainer)> LhsView; - typedef typename LhsView::type LhsStlContainer; - typedef typename LhsView::const_reference LhsStlContainerReference; - typedef typename LhsStlContainer::value_type LhsValue; - // We pass the LHS value and the RHS value to the inner matcher by - // reference, as they may be expensive to copy. We must use tuple - // instead of pair here, as a pair cannot hold references (C++ 98, - // 20.2.2 [lib.pairs]). - typedef std::tr1::tuple<const LhsValue&, const RhsValue&> InnerMatcherArg; - - Impl(const TupleMatcher& tuple_matcher, const RhsStlContainer& rhs) - // mono_tuple_matcher_ holds a monomorphic version of the tuple matcher. - : mono_tuple_matcher_(SafeMatcherCast<InnerMatcherArg>(tuple_matcher)), - rhs_(rhs) {} - - virtual void DescribeTo(::std::ostream* os) const { - *os << "contains " << rhs_.size() - << " values, where each value and its corresponding value in "; - UniversalPrinter<RhsStlContainer>::Print(rhs_, os); - *os << " "; - mono_tuple_matcher_.DescribeTo(os); - } - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "doesn't contain exactly " << rhs_.size() - << " values, or contains a value x at some index i" - << " where x and the i-th value of "; - UniversalPrint(rhs_, os); - *os << " "; - mono_tuple_matcher_.DescribeNegationTo(os); - } - - virtual bool MatchAndExplain(LhsContainer lhs, - MatchResultListener* listener) const { - LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs); - const size_t actual_size = lhs_stl_container.size(); - if (actual_size != rhs_.size()) { - *listener << "which contains " << actual_size << " values"; - return false; - } - - typename LhsStlContainer::const_iterator left = lhs_stl_container.begin(); - typename RhsStlContainer::const_iterator right = rhs_.begin(); - for (size_t i = 0; i != actual_size; ++i, ++left, ++right) { - const InnerMatcherArg value_pair(*left, *right); - - if (listener->IsInterested()) { - StringMatchResultListener inner_listener; - if (!mono_tuple_matcher_.MatchAndExplain( - value_pair, &inner_listener)) { - *listener << "where the value pair ("; - UniversalPrint(*left, listener->stream()); - *listener << ", "; - UniversalPrint(*right, listener->stream()); - *listener << ") at index #" << i << " don't match"; - PrintIfNotEmpty(inner_listener.str(), listener->stream()); - return false; - } - } else { - if (!mono_tuple_matcher_.Matches(value_pair)) - return false; - } - } - - return true; - } - - private: - const Matcher<InnerMatcherArg> mono_tuple_matcher_; - const RhsStlContainer rhs_; - - GTEST_DISALLOW_ASSIGN_(Impl); - }; - - private: - const TupleMatcher tuple_matcher_; - const RhsStlContainer rhs_; - - GTEST_DISALLOW_ASSIGN_(PointwiseMatcher); -}; - -// Holds the logic common to ContainsMatcherImpl and EachMatcherImpl. -template <typename Container> -class QuantifierMatcherImpl : public MatcherInterface<Container> { - public: - typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer; - typedef StlContainerView<RawContainer> View; - typedef typename View::type StlContainer; - typedef typename View::const_reference StlContainerReference; - typedef typename StlContainer::value_type Element; - - template <typename InnerMatcher> - explicit QuantifierMatcherImpl(InnerMatcher inner_matcher) - : inner_matcher_( - testing::SafeMatcherCast<const Element&>(inner_matcher)) {} - - // Checks whether: - // * All elements in the container match, if all_elements_should_match. - // * Any element in the container matches, if !all_elements_should_match. - bool MatchAndExplainImpl(bool all_elements_should_match, - Container container, - MatchResultListener* listener) const { - StlContainerReference stl_container = View::ConstReference(container); - size_t i = 0; - for (typename StlContainer::const_iterator it = stl_container.begin(); - it != stl_container.end(); ++it, ++i) { - StringMatchResultListener inner_listener; - const bool matches = inner_matcher_.MatchAndExplain(*it, &inner_listener); - - if (matches != all_elements_should_match) { - *listener << "whose element #" << i - << (matches ? " matches" : " doesn't match"); - PrintIfNotEmpty(inner_listener.str(), listener->stream()); - return !all_elements_should_match; - } - } - return all_elements_should_match; - } - - protected: - const Matcher<const Element&> inner_matcher_; - - GTEST_DISALLOW_ASSIGN_(QuantifierMatcherImpl); -}; - -// Implements Contains(element_matcher) for the given argument type Container. -// Symmetric to EachMatcherImpl. -template <typename Container> -class ContainsMatcherImpl : public QuantifierMatcherImpl<Container> { - public: - template <typename InnerMatcher> - explicit ContainsMatcherImpl(InnerMatcher inner_matcher) - : QuantifierMatcherImpl<Container>(inner_matcher) {} - - // Describes what this matcher does. - virtual void DescribeTo(::std::ostream* os) const { - *os << "contains at least one element that "; - this->inner_matcher_.DescribeTo(os); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "doesn't contain any element that "; - this->inner_matcher_.DescribeTo(os); - } - - virtual bool MatchAndExplain(Container container, - MatchResultListener* listener) const { - return this->MatchAndExplainImpl(false, container, listener); - } - - private: - GTEST_DISALLOW_ASSIGN_(ContainsMatcherImpl); -}; - -// Implements Each(element_matcher) for the given argument type Container. -// Symmetric to ContainsMatcherImpl. -template <typename Container> -class EachMatcherImpl : public QuantifierMatcherImpl<Container> { - public: - template <typename InnerMatcher> - explicit EachMatcherImpl(InnerMatcher inner_matcher) - : QuantifierMatcherImpl<Container>(inner_matcher) {} - - // Describes what this matcher does. - virtual void DescribeTo(::std::ostream* os) const { - *os << "only contains elements that "; - this->inner_matcher_.DescribeTo(os); - } - - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "contains some element that "; - this->inner_matcher_.DescribeNegationTo(os); - } - - virtual bool MatchAndExplain(Container container, - MatchResultListener* listener) const { - return this->MatchAndExplainImpl(true, container, listener); - } - - private: - GTEST_DISALLOW_ASSIGN_(EachMatcherImpl); -}; - -// Implements polymorphic Contains(element_matcher). -template <typename M> -class ContainsMatcher { - public: - explicit ContainsMatcher(M m) : inner_matcher_(m) {} - - template <typename Container> - operator Matcher<Container>() const { - return MakeMatcher(new ContainsMatcherImpl<Container>(inner_matcher_)); - } - - private: - const M inner_matcher_; - - GTEST_DISALLOW_ASSIGN_(ContainsMatcher); -}; - -// Implements polymorphic Each(element_matcher). -template <typename M> -class EachMatcher { - public: - explicit EachMatcher(M m) : inner_matcher_(m) {} - - template <typename Container> - operator Matcher<Container>() const { - return MakeMatcher(new EachMatcherImpl<Container>(inner_matcher_)); - } - - private: - const M inner_matcher_; - - GTEST_DISALLOW_ASSIGN_(EachMatcher); -}; - -// Implements Key(inner_matcher) for the given argument pair type. -// Key(inner_matcher) matches an std::pair whose 'first' field matches -// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an -// std::map that contains at least one element whose key is >= 5. -template <typename PairType> -class KeyMatcherImpl : public MatcherInterface<PairType> { - public: - typedef GTEST_REMOVE_REFERENCE_AND_CONST_(PairType) RawPairType; - typedef typename RawPairType::first_type KeyType; - - template <typename InnerMatcher> - explicit KeyMatcherImpl(InnerMatcher inner_matcher) - : inner_matcher_( - testing::SafeMatcherCast<const KeyType&>(inner_matcher)) { - } - - // Returns true iff 'key_value.first' (the key) matches the inner matcher. - virtual bool MatchAndExplain(PairType key_value, - MatchResultListener* listener) const { - StringMatchResultListener inner_listener; - const bool match = inner_matcher_.MatchAndExplain(key_value.first, - &inner_listener); - const internal::string explanation = inner_listener.str(); - if (explanation != "") { - *listener << "whose first field is a value " << explanation; - } - return match; - } - - // Describes what this matcher does. - virtual void DescribeTo(::std::ostream* os) const { - *os << "has a key that "; - inner_matcher_.DescribeTo(os); - } - - // Describes what the negation of this matcher does. - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "doesn't have a key that "; - inner_matcher_.DescribeTo(os); - } - - private: - const Matcher<const KeyType&> inner_matcher_; - - GTEST_DISALLOW_ASSIGN_(KeyMatcherImpl); -}; - -// Implements polymorphic Key(matcher_for_key). -template <typename M> -class KeyMatcher { - public: - explicit KeyMatcher(M m) : matcher_for_key_(m) {} - - template <typename PairType> - operator Matcher<PairType>() const { - return MakeMatcher(new KeyMatcherImpl<PairType>(matcher_for_key_)); - } - - private: - const M matcher_for_key_; - - GTEST_DISALLOW_ASSIGN_(KeyMatcher); -}; - -// Implements Pair(first_matcher, second_matcher) for the given argument pair -// type with its two matchers. See Pair() function below. -template <typename PairType> -class PairMatcherImpl : public MatcherInterface<PairType> { - public: - typedef GTEST_REMOVE_REFERENCE_AND_CONST_(PairType) RawPairType; - typedef typename RawPairType::first_type FirstType; - typedef typename RawPairType::second_type SecondType; - - template <typename FirstMatcher, typename SecondMatcher> - PairMatcherImpl(FirstMatcher first_matcher, SecondMatcher second_matcher) - : first_matcher_( - testing::SafeMatcherCast<const FirstType&>(first_matcher)), - second_matcher_( - testing::SafeMatcherCast<const SecondType&>(second_matcher)) { - } - - // Describes what this matcher does. - virtual void DescribeTo(::std::ostream* os) const { - *os << "has a first field that "; - first_matcher_.DescribeTo(os); - *os << ", and has a second field that "; - second_matcher_.DescribeTo(os); - } - - // Describes what the negation of this matcher does. - virtual void DescribeNegationTo(::std::ostream* os) const { - *os << "has a first field that "; - first_matcher_.DescribeNegationTo(os); - *os << ", or has a second field that "; - second_matcher_.DescribeNegationTo(os); - } - - // Returns true iff 'a_pair.first' matches first_matcher and 'a_pair.second' - // matches second_matcher. - virtual bool MatchAndExplain(PairType a_pair, - MatchResultListener* listener) const { - if (!listener->IsInterested()) { - // If the listener is not interested, we don't need to construct the - // explanation. - return first_matcher_.Matches(a_pair.first) && - second_matcher_.Matches(a_pair.second); - } - StringMatchResultListener first_inner_listener; - if (!first_matcher_.MatchAndExplain(a_pair.first, - &first_inner_listener)) { - *listener << "whose first field does not match"; - PrintIfNotEmpty(first_inner_listener.str(), listener->stream()); - return false; - } - StringMatchResultListener second_inner_listener; - if (!second_matcher_.MatchAndExplain(a_pair.second, - &second_inner_listener)) { - *listener << "whose second field does not match"; - PrintIfNotEmpty(second_inner_listener.str(), listener->stream()); - return false; - } - ExplainSuccess(first_inner_listener.str(), second_inner_listener.str(), - listener); - return true; - } - - private: - void ExplainSuccess(const internal::string& first_explanation, - const internal::string& second_explanation, - MatchResultListener* listener) const { - *listener << "whose both fields match"; - if (first_explanation != "") { - *listener << ", where the first field is a value " << first_explanation; - } - if (second_explanation != "") { - *listener << ", "; - if (first_explanation != "") { - *listener << "and "; - } else { - *listener << "where "; - } - *listener << "the second field is a value " << second_explanation; - } - } - - const Matcher<const FirstType&> first_matcher_; - const Matcher<const SecondType&> second_matcher_; - - GTEST_DISALLOW_ASSIGN_(PairMatcherImpl); -}; - -// Implements polymorphic Pair(first_matcher, second_matcher). -template <typename FirstMatcher, typename SecondMatcher> -class PairMatcher { - public: - PairMatcher(FirstMatcher first_matcher, SecondMatcher second_matcher) - : first_matcher_(first_matcher), second_matcher_(second_matcher) {} - - template <typename PairType> - operator Matcher<PairType> () const { - return MakeMatcher( - new PairMatcherImpl<PairType>( - first_matcher_, second_matcher_)); - } - - private: - const FirstMatcher first_matcher_; - const SecondMatcher second_matcher_; - - GTEST_DISALLOW_ASSIGN_(PairMatcher); -}; - -// Implements ElementsAre() and ElementsAreArray(). -template <typename Container> -class ElementsAreMatcherImpl : public MatcherInterface<Container> { - public: - typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer; - typedef internal::StlContainerView<RawContainer> View; - typedef typename View::type StlContainer; - typedef typename View::const_reference StlContainerReference; - typedef typename StlContainer::value_type Element; - - // Constructs the matcher from a sequence of element values or - // element matchers. - template <typename InputIter> - ElementsAreMatcherImpl(InputIter first, size_t a_count) { - matchers_.reserve(a_count); - InputIter it = first; - for (size_t i = 0; i != a_count; ++i, ++it) { - matchers_.push_back(MatcherCast<const Element&>(*it)); - } - } - - // Describes what this matcher does. - virtual void DescribeTo(::std::ostream* os) const { - if (count() == 0) { - *os << "is empty"; - } else if (count() == 1) { - *os << "has 1 element that "; - matchers_[0].DescribeTo(os); - } else { - *os << "has " << Elements(count()) << " where\n"; - for (size_t i = 0; i != count(); ++i) { - *os << "element #" << i << " "; - matchers_[i].DescribeTo(os); - if (i + 1 < count()) { - *os << ",\n"; - } - } - } - } - - // Describes what the negation of this matcher does. - virtual void DescribeNegationTo(::std::ostream* os) const { - if (count() == 0) { - *os << "isn't empty"; - return; - } - - *os << "doesn't have " << Elements(count()) << ", or\n"; - for (size_t i = 0; i != count(); ++i) { - *os << "element #" << i << " "; - matchers_[i].DescribeNegationTo(os); - if (i + 1 < count()) { - *os << ", or\n"; - } - } - } - - virtual bool MatchAndExplain(Container container, - MatchResultListener* listener) const { - StlContainerReference stl_container = View::ConstReference(container); - const size_t actual_count = stl_container.size(); - if (actual_count != count()) { - // The element count doesn't match. If the container is empty, - // there's no need to explain anything as Google Mock already - // prints the empty container. Otherwise we just need to show - // how many elements there actually are. - if (actual_count != 0) { - *listener << "which has " << Elements(actual_count); - } - return false; - } - - typename StlContainer::const_iterator it = stl_container.begin(); - // explanations[i] is the explanation of the element at index i. - std::vector<internal::string> explanations(count()); - for (size_t i = 0; i != count(); ++it, ++i) { - StringMatchResultListener s; - if (matchers_[i].MatchAndExplain(*it, &s)) { - explanations[i] = s.str(); - } else { - // The container has the right size but the i-th element - // doesn't match its expectation. - *listener << "whose element #" << i << " doesn't match"; - PrintIfNotEmpty(s.str(), listener->stream()); - return false; - } - } - - // Every element matches its expectation. We need to explain why - // (the obvious ones can be skipped). - bool reason_printed = false; - for (size_t i = 0; i != count(); ++i) { - const internal::string& s = explanations[i]; - if (!s.empty()) { - if (reason_printed) { - *listener << ",\nand "; - } - *listener << "whose element #" << i << " matches, " << s; - reason_printed = true; - } - } - - return true; - } - - private: - static Message Elements(size_t count) { - return Message() << count << (count == 1 ? " element" : " elements"); - } - - size_t count() const { return matchers_.size(); } - std::vector<Matcher<const Element&> > matchers_; - - GTEST_DISALLOW_ASSIGN_(ElementsAreMatcherImpl); -}; - -// Implements ElementsAre() of 0 arguments. -class ElementsAreMatcher0 { - public: - ElementsAreMatcher0() {} - - template <typename Container> - operator Matcher<Container>() const { - typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer; - typedef typename internal::StlContainerView<RawContainer>::type::value_type - Element; - - const Matcher<const Element&>* const matchers = NULL; - return MakeMatcher(new ElementsAreMatcherImpl<Container>(matchers, 0)); - } -}; - -// Implements ElementsAreArray(). -template <typename T> -class ElementsAreArrayMatcher { - public: - ElementsAreArrayMatcher(const T* first, size_t count) : - first_(first), count_(count) {} - - template <typename Container> - operator Matcher<Container>() const { - typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer; - typedef typename internal::StlContainerView<RawContainer>::type::value_type - Element; - - return MakeMatcher(new ElementsAreMatcherImpl<Container>(first_, count_)); - } - - private: - const T* const first_; - const size_t count_; - - GTEST_DISALLOW_ASSIGN_(ElementsAreArrayMatcher); -}; - -// Returns the description for a matcher defined using the MATCHER*() -// macro where the user-supplied description string is "", if -// 'negation' is false; otherwise returns the description of the -// negation of the matcher. 'param_values' contains a list of strings -// that are the print-out of the matcher's parameters. -string FormatMatcherDescription(bool negation, const char* matcher_name, - const Strings& param_values); - -} // namespace internal - -// Implements MatcherCast(). -template <typename T, typename M> -inline Matcher<T> MatcherCast(M matcher) { - return internal::MatcherCastImpl<T, M>::Cast(matcher); -} - -// _ is a matcher that matches anything of any type. -// -// This definition is fine as: -// -// 1. The C++ standard permits using the name _ in a namespace that -// is not the global namespace or ::std. -// 2. The AnythingMatcher class has no data member or constructor, -// so it's OK to create global variables of this type. -// 3. c-style has approved of using _ in this case. -const internal::AnythingMatcher _ = {}; -// Creates a matcher that matches any value of the given type T. -template <typename T> -inline Matcher<T> A() { return MakeMatcher(new internal::AnyMatcherImpl<T>()); } - -// Creates a matcher that matches any value of the given type T. -template <typename T> -inline Matcher<T> An() { return A<T>(); } - -// Creates a polymorphic matcher that matches anything equal to x. -// Note: if the parameter of Eq() were declared as const T&, Eq("foo") -// wouldn't compile. -template <typename T> -inline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); } - -// Constructs a Matcher<T> from a 'value' of type T. The constructed -// matcher matches any value that's equal to 'value'. -template <typename T> -Matcher<T>::Matcher(T value) { *this = Eq(value); } - -// Creates a monomorphic matcher that matches anything with type Lhs -// and equal to rhs. A user may need to use this instead of Eq(...) -// in order to resolve an overloading ambiguity. -// -// TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x)) -// or Matcher<T>(x), but more readable than the latter. -// -// We could define similar monomorphic matchers for other comparison -// operations (e.g. TypedLt, TypedGe, and etc), but decided not to do -// it yet as those are used much less than Eq() in practice. A user -// can always write Matcher<T>(Lt(5)) to be explicit about the type, -// for example. -template <typename Lhs, typename Rhs> -inline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); } - -// Creates a polymorphic matcher that matches anything >= x. -template <typename Rhs> -inline internal::GeMatcher<Rhs> Ge(Rhs x) { - return internal::GeMatcher<Rhs>(x); -} - -// Creates a polymorphic matcher that matches anything > x. -template <typename Rhs> -inline internal::GtMatcher<Rhs> Gt(Rhs x) { - return internal::GtMatcher<Rhs>(x); -} - -// Creates a polymorphic matcher that matches anything <= x. -template <typename Rhs> -inline internal::LeMatcher<Rhs> Le(Rhs x) { - return internal::LeMatcher<Rhs>(x); -} - -// Creates a polymorphic matcher that matches anything < x. -template <typename Rhs> -inline internal::LtMatcher<Rhs> Lt(Rhs x) { - return internal::LtMatcher<Rhs>(x); -} - -// Creates a polymorphic matcher that matches anything != x. -template <typename Rhs> -inline internal::NeMatcher<Rhs> Ne(Rhs x) { - return internal::NeMatcher<Rhs>(x); -} - -// Creates a polymorphic matcher that matches any NULL pointer. -inline PolymorphicMatcher<internal::IsNullMatcher > IsNull() { - return MakePolymorphicMatcher(internal::IsNullMatcher()); -} - -// Creates a polymorphic matcher that matches any non-NULL pointer. -// This is convenient as Not(NULL) doesn't compile (the compiler -// thinks that that expression is comparing a pointer with an integer). -inline PolymorphicMatcher<internal::NotNullMatcher > NotNull() { - return MakePolymorphicMatcher(internal::NotNullMatcher()); -} - -// Creates a polymorphic matcher that matches any argument that -// references variable x. -template <typename T> -inline internal::RefMatcher<T&> Ref(T& x) { // NOLINT - return internal::RefMatcher<T&>(x); -} - -// Creates a matcher that matches any double argument approximately -// equal to rhs, where two NANs are considered unequal. -inline internal::FloatingEqMatcher<double> DoubleEq(double rhs) { - return internal::FloatingEqMatcher<double>(rhs, false); -} - -// Creates a matcher that matches any double argument approximately -// equal to rhs, including NaN values when rhs is NaN. -inline internal::FloatingEqMatcher<double> NanSensitiveDoubleEq(double rhs) { - return internal::FloatingEqMatcher<double>(rhs, true); -} - -// Creates a matcher that matches any float argument approximately -// equal to rhs, where two NANs are considered unequal. -inline internal::FloatingEqMatcher<float> FloatEq(float rhs) { - return internal::FloatingEqMatcher<float>(rhs, false); -} - -// Creates a matcher that matches any double argument approximately -// equal to rhs, including NaN values when rhs is NaN. -inline internal::FloatingEqMatcher<float> NanSensitiveFloatEq(float rhs) { - return internal::FloatingEqMatcher<float>(rhs, true); -} - -// Creates a matcher that matches a pointer (raw or smart) that points -// to a value that matches inner_matcher. -template <typename InnerMatcher> -inline internal::PointeeMatcher<InnerMatcher> Pointee( - const InnerMatcher& inner_matcher) { - return internal::PointeeMatcher<InnerMatcher>(inner_matcher); -} - -// Creates a matcher that matches an object whose given field matches -// 'matcher'. For example, -// Field(&Foo::number, Ge(5)) -// matches a Foo object x iff x.number >= 5. -template <typename Class, typename FieldType, typename FieldMatcher> -inline PolymorphicMatcher< - internal::FieldMatcher<Class, FieldType> > Field( - FieldType Class::*field, const FieldMatcher& matcher) { - return MakePolymorphicMatcher( - internal::FieldMatcher<Class, FieldType>( - field, MatcherCast<const FieldType&>(matcher))); - // The call to MatcherCast() is required for supporting inner - // matchers of compatible types. For example, it allows - // Field(&Foo::bar, m) - // to compile where bar is an int32 and m is a matcher for int64. -} - -// Creates a matcher that matches an object whose given property -// matches 'matcher'. For example, -// Property(&Foo::str, StartsWith("hi")) -// matches a Foo object x iff x.str() starts with "hi". -template <typename Class, typename PropertyType, typename PropertyMatcher> -inline PolymorphicMatcher< - internal::PropertyMatcher<Class, PropertyType> > Property( - PropertyType (Class::*property)() const, const PropertyMatcher& matcher) { - return MakePolymorphicMatcher( - internal::PropertyMatcher<Class, PropertyType>( - property, - MatcherCast<GTEST_REFERENCE_TO_CONST_(PropertyType)>(matcher))); - // The call to MatcherCast() is required for supporting inner - // matchers of compatible types. For example, it allows - // Property(&Foo::bar, m) - // to compile where bar() returns an int32 and m is a matcher for int64. -} - -// Creates a matcher that matches an object iff the result of applying -// a callable to x matches 'matcher'. -// For example, -// ResultOf(f, StartsWith("hi")) -// matches a Foo object x iff f(x) starts with "hi". -// callable parameter can be a function, function pointer, or a functor. -// Callable has to satisfy the following conditions: -// * It is required to keep no state affecting the results of -// the calls on it and make no assumptions about how many calls -// will be made. Any state it keeps must be protected from the -// concurrent access. -// * If it is a function object, it has to define type result_type. -// We recommend deriving your functor classes from std::unary_function. -template <typename Callable, typename ResultOfMatcher> -internal::ResultOfMatcher<Callable> ResultOf( - Callable callable, const ResultOfMatcher& matcher) { - return internal::ResultOfMatcher<Callable>( - callable, - MatcherCast<typename internal::CallableTraits<Callable>::ResultType>( - matcher)); - // The call to MatcherCast() is required for supporting inner - // matchers of compatible types. For example, it allows - // ResultOf(Function, m) - // to compile where Function() returns an int32 and m is a matcher for int64. -} - -// String matchers. - -// Matches a string equal to str. -inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > - StrEq(const internal::string& str) { - return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( - str, true, true)); -} - -// Matches a string not equal to str. -inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > - StrNe(const internal::string& str) { - return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( - str, false, true)); -} - -// Matches a string equal to str, ignoring case. -inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > - StrCaseEq(const internal::string& str) { - return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( - str, true, false)); -} - -// Matches a string not equal to str, ignoring case. -inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > - StrCaseNe(const internal::string& str) { - return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( - str, false, false)); -} - -// Creates a matcher that matches any string, std::string, or C string -// that contains the given substring. -inline PolymorphicMatcher<internal::HasSubstrMatcher<internal::string> > - HasSubstr(const internal::string& substring) { - return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::string>( - substring)); -} - -// Matches a string that starts with 'prefix' (case-sensitive). -inline PolymorphicMatcher<internal::StartsWithMatcher<internal::string> > - StartsWith(const internal::string& prefix) { - return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::string>( - prefix)); -} - -// Matches a string that ends with 'suffix' (case-sensitive). -inline PolymorphicMatcher<internal::EndsWithMatcher<internal::string> > - EndsWith(const internal::string& suffix) { - return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::string>( - suffix)); -} - -// Matches a string that fully matches regular expression 'regex'. -// The matcher takes ownership of 'regex'. -inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex( - const internal::RE* regex) { - return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true)); -} -inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex( - const internal::string& regex) { - return MatchesRegex(new internal::RE(regex)); -} - -// Matches a string that contains regular expression 'regex'. -// The matcher takes ownership of 'regex'. -inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex( - const internal::RE* regex) { - return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false)); -} -inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex( - const internal::string& regex) { - return ContainsRegex(new internal::RE(regex)); -} - -#if GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING -// Wide string matchers. - -// Matches a string equal to str. -inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > - StrEq(const internal::wstring& str) { - return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( - str, true, true)); -} - -// Matches a string not equal to str. -inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > - StrNe(const internal::wstring& str) { - return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( - str, false, true)); -} - -// Matches a string equal to str, ignoring case. -inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > - StrCaseEq(const internal::wstring& str) { - return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( - str, true, false)); -} - -// Matches a string not equal to str, ignoring case. -inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > - StrCaseNe(const internal::wstring& str) { - return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( - str, false, false)); -} - -// Creates a matcher that matches any wstring, std::wstring, or C wide string -// that contains the given substring. -inline PolymorphicMatcher<internal::HasSubstrMatcher<internal::wstring> > - HasSubstr(const internal::wstring& substring) { - return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::wstring>( - substring)); -} - -// Matches a string that starts with 'prefix' (case-sensitive). -inline PolymorphicMatcher<internal::StartsWithMatcher<internal::wstring> > - StartsWith(const internal::wstring& prefix) { - return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::wstring>( - prefix)); -} - -// Matches a string that ends with 'suffix' (case-sensitive). -inline PolymorphicMatcher<internal::EndsWithMatcher<internal::wstring> > - EndsWith(const internal::wstring& suffix) { - return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::wstring>( - suffix)); -} - -#endif // GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING - -// Creates a polymorphic matcher that matches a 2-tuple where the -// first field == the second field. -inline internal::Eq2Matcher Eq() { return internal::Eq2Matcher(); } - -// Creates a polymorphic matcher that matches a 2-tuple where the -// first field >= the second field. -inline internal::Ge2Matcher Ge() { return internal::Ge2Matcher(); } - -// Creates a polymorphic matcher that matches a 2-tuple where the -// first field > the second field. -inline internal::Gt2Matcher Gt() { return internal::Gt2Matcher(); } - -// Creates a polymorphic matcher that matches a 2-tuple where the -// first field <= the second field. -inline internal::Le2Matcher Le() { return internal::Le2Matcher(); } - -// Creates a polymorphic matcher that matches a 2-tuple where the -// first field < the second field. -inline internal::Lt2Matcher Lt() { return internal::Lt2Matcher(); } - -// Creates a polymorphic matcher that matches a 2-tuple where the -// first field != the second field. -inline internal::Ne2Matcher Ne() { return internal::Ne2Matcher(); } - -// Creates a matcher that matches any value of type T that m doesn't -// match. -template <typename InnerMatcher> -inline internal::NotMatcher<InnerMatcher> Not(InnerMatcher m) { - return internal::NotMatcher<InnerMatcher>(m); -} - -// Returns a matcher that matches anything that satisfies the given -// predicate. The predicate can be any unary function or functor -// whose return type can be implicitly converted to bool. -template <typename Predicate> -inline PolymorphicMatcher<internal::TrulyMatcher<Predicate> > -Truly(Predicate pred) { - return MakePolymorphicMatcher(internal::TrulyMatcher<Predicate>(pred)); -} - -// Returns a matcher that matches an equal container. -// This matcher behaves like Eq(), but in the event of mismatch lists the -// values that are included in one container but not the other. (Duplicate -// values and order differences are not explained.) -template <typename Container> -inline PolymorphicMatcher<internal::ContainerEqMatcher< // NOLINT - GTEST_REMOVE_CONST_(Container)> > - ContainerEq(const Container& rhs) { - // This following line is for working around a bug in MSVC 8.0, - // which causes Container to be a const type sometimes. - typedef GTEST_REMOVE_CONST_(Container) RawContainer; - return MakePolymorphicMatcher( - internal::ContainerEqMatcher<RawContainer>(rhs)); -} - -// Matches an STL-style container or a native array that contains the -// same number of elements as in rhs, where its i-th element and rhs's -// i-th element (as a pair) satisfy the given pair matcher, for all i. -// TupleMatcher must be able to be safely cast to Matcher<tuple<const -// T1&, const T2&> >, where T1 and T2 are the types of elements in the -// LHS container and the RHS container respectively. -template <typename TupleMatcher, typename Container> -inline internal::PointwiseMatcher<TupleMatcher, - GTEST_REMOVE_CONST_(Container)> -Pointwise(const TupleMatcher& tuple_matcher, const Container& rhs) { - // This following line is for working around a bug in MSVC 8.0, - // which causes Container to be a const type sometimes. - typedef GTEST_REMOVE_CONST_(Container) RawContainer; - return internal::PointwiseMatcher<TupleMatcher, RawContainer>( - tuple_matcher, rhs); -} - -// Matches an STL-style container or a native array that contains at -// least one element matching the given value or matcher. -// -// Examples: -// ::std::set<int> page_ids; -// page_ids.insert(3); -// page_ids.insert(1); -// EXPECT_THAT(page_ids, Contains(1)); -// EXPECT_THAT(page_ids, Contains(Gt(2))); -// EXPECT_THAT(page_ids, Not(Contains(4))); -// -// ::std::map<int, size_t> page_lengths; -// page_lengths[1] = 100; -// EXPECT_THAT(page_lengths, -// Contains(::std::pair<const int, size_t>(1, 100))); -// -// const char* user_ids[] = { "joe", "mike", "tom" }; -// EXPECT_THAT(user_ids, Contains(Eq(::std::string("tom")))); -template <typename M> -inline internal::ContainsMatcher<M> Contains(M matcher) { - return internal::ContainsMatcher<M>(matcher); -} - -// Matches an STL-style container or a native array that contains only -// elements matching the given value or matcher. -// -// Each(m) is semantically equivalent to Not(Contains(Not(m))). Only -// the messages are different. -// -// Examples: -// ::std::set<int> page_ids; -// // Each(m) matches an empty container, regardless of what m is. -// EXPECT_THAT(page_ids, Each(Eq(1))); -// EXPECT_THAT(page_ids, Each(Eq(77))); -// -// page_ids.insert(3); -// EXPECT_THAT(page_ids, Each(Gt(0))); -// EXPECT_THAT(page_ids, Not(Each(Gt(4)))); -// page_ids.insert(1); -// EXPECT_THAT(page_ids, Not(Each(Lt(2)))); -// -// ::std::map<int, size_t> page_lengths; -// page_lengths[1] = 100; -// page_lengths[2] = 200; -// page_lengths[3] = 300; -// EXPECT_THAT(page_lengths, Not(Each(Pair(1, 100)))); -// EXPECT_THAT(page_lengths, Each(Key(Le(3)))); -// -// const char* user_ids[] = { "joe", "mike", "tom" }; -// EXPECT_THAT(user_ids, Not(Each(Eq(::std::string("tom"))))); -template <typename M> -inline internal::EachMatcher<M> Each(M matcher) { - return internal::EachMatcher<M>(matcher); -} - -// Key(inner_matcher) matches an std::pair whose 'first' field matches -// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an -// std::map that contains at least one element whose key is >= 5. -template <typename M> -inline internal::KeyMatcher<M> Key(M inner_matcher) { - return internal::KeyMatcher<M>(inner_matcher); -} - -// Pair(first_matcher, second_matcher) matches a std::pair whose 'first' field -// matches first_matcher and whose 'second' field matches second_matcher. For -// example, EXPECT_THAT(map_type, ElementsAre(Pair(Ge(5), "foo"))) can be used -// to match a std::map<int, string> that contains exactly one element whose key -// is >= 5 and whose value equals "foo". -template <typename FirstMatcher, typename SecondMatcher> -inline internal::PairMatcher<FirstMatcher, SecondMatcher> -Pair(FirstMatcher first_matcher, SecondMatcher second_matcher) { - return internal::PairMatcher<FirstMatcher, SecondMatcher>( - first_matcher, second_matcher); -} - -// Returns a predicate that is satisfied by anything that matches the -// given matcher. -template <typename M> -inline internal::MatcherAsPredicate<M> Matches(M matcher) { - return internal::MatcherAsPredicate<M>(matcher); -} - -// Returns true iff the value matches the matcher. -template <typename T, typename M> -inline bool Value(const T& value, M matcher) { - return testing::Matches(matcher)(value); -} - -// Matches the value against the given matcher and explains the match -// result to listener. -template <typename T, typename M> -inline bool ExplainMatchResult( - M matcher, const T& value, MatchResultListener* listener) { - return SafeMatcherCast<const T&>(matcher).MatchAndExplain(value, listener); -} - -// AllArgs(m) is a synonym of m. This is useful in -// -// EXPECT_CALL(foo, Bar(_, _)).With(AllArgs(Eq())); -// -// which is easier to read than -// -// EXPECT_CALL(foo, Bar(_, _)).With(Eq()); -template <typename InnerMatcher> -inline InnerMatcher AllArgs(const InnerMatcher& matcher) { return matcher; } - -// These macros allow using matchers to check values in Google Test -// tests. ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher) -// succeed iff the value matches the matcher. If the assertion fails, -// the value and the description of the matcher will be printed. -#define ASSERT_THAT(value, matcher) ASSERT_PRED_FORMAT1(\ - ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value) -#define EXPECT_THAT(value, matcher) EXPECT_PRED_FORMAT1(\ - ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value) - -} // namespace testing - -#endif // GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ |