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Diffstat (limited to 'src/third_party/re2/dist/re2/testing/re2_arg_test.cc')
| -rw-r--r-- | src/third_party/re2/dist/re2/testing/re2_arg_test.cc | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/src/third_party/re2/dist/re2/testing/re2_arg_test.cc b/src/third_party/re2/dist/re2/testing/re2_arg_test.cc new file mode 100644 index 00000000000..f62e17cf477 --- /dev/null +++ b/src/third_party/re2/dist/re2/testing/re2_arg_test.cc @@ -0,0 +1,160 @@ +// Copyright 2005 The RE2 Authors. All Rights Reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This tests to make sure numbers are parsed from strings +// correctly. +// Todo: Expand the test to validate strings parsed to the other types +// supported by RE2::Arg class + +#include <stdint.h> +#include <string.h> + +#include "util/test.h" +#include "util/logging.h" +#include "re2/re2.h" + +namespace re2 { + +struct SuccessTable { + const char * value_string; + int64_t value; + bool success[6]; +}; + +// Test boundary cases for different integral sizes. +// Specifically I want to make sure that values outside the boundries +// of an integral type will fail and that negative numbers will fail +// for unsigned types. The following table contains the boundaries for +// the various integral types and has entries for whether or not each +// type can contain the given value. +const SuccessTable kSuccessTable[] = { +// string integer value i16 u16 i32 u32 i64 u64 +// 0 to 2^7-1 +{ "0", 0, { true, true, true, true, true, true }}, +{ "127", 127, { true, true, true, true, true, true }}, + +// -1 to -2^7 +{ "-1", -1, { true, false, true, false, true, false }}, +{ "-128", -128, { true, false, true, false, true, false }}, + +// 2^7 to 2^8-1 +{ "128", 128, { true, true, true, true, true, true }}, +{ "255", 255, { true, true, true, true, true, true }}, + +// 2^8 to 2^15-1 +{ "256", 256, { true, true, true, true, true, true }}, +{ "32767", 32767, { true, true, true, true, true, true }}, + +// -2^7-1 to -2^15 +{ "-129", -129, { true, false, true, false, true, false }}, +{ "-32768", -32768, { true, false, true, false, true, false }}, + +// 2^15 to 2^16-1 +{ "32768", 32768, { false, true, true, true, true, true }}, +{ "65535", 65535, { false, true, true, true, true, true }}, + +// 2^16 to 2^31-1 +{ "65536", 65536, { false, false, true, true, true, true }}, +{ "2147483647", 2147483647, { false, false, true, true, true, true }}, + +// -2^15-1 to -2^31 +{ "-32769", -32769, { false, false, true, false, true, false }}, +{ "-2147483648", static_cast<int64_t>(0xFFFFFFFF80000000LL), + { false, false, true, false, true, false }}, + +// 2^31 to 2^32-1 +{ "2147483648", 2147483648U, { false, false, false, true, true, true }}, +{ "4294967295", 4294967295U, { false, false, false, true, true, true }}, + +// 2^32 to 2^63-1 +{ "4294967296", 4294967296LL, { false, false, false, false, true, true }}, +{ "9223372036854775807", + 9223372036854775807LL, { false, false, false, false, true, true }}, + +// -2^31-1 to -2^63 +{ "-2147483649", -2147483649LL, { false, false, false, false, true, false }}, +{ "-9223372036854775808", static_cast<int64_t>(0x8000000000000000LL), + { false, false, false, false, true, false }}, + +// 2^63 to 2^64-1 +{ "9223372036854775808", static_cast<int64_t>(9223372036854775808ULL), + { false, false, false, false, false, true }}, +{ "18446744073709551615", static_cast<int64_t>(18446744073709551615ULL), + { false, false, false, false, false, true }}, + +// >= 2^64 +{ "18446744073709551616", 0, { false, false, false, false, false, false }}, +}; + +const int kNumStrings = arraysize(kSuccessTable); + +// It's ugly to use a macro, but we apparently can't use the EXPECT_EQ +// macro outside of a TEST block and this seems to be the only way to +// avoid code duplication. I can also pull off a couple nice tricks +// using concatenation for the type I'm checking against. +#define PARSE_FOR_TYPE(type, column) { \ + type r; \ + for (int i = 0; i < kNumStrings; ++i) { \ + RE2::Arg arg(&r); \ + const char* const p = kSuccessTable[i].value_string; \ + bool retval = arg.Parse(p, strlen(p)); \ + bool success = kSuccessTable[i].success[column]; \ + EXPECT_EQ(retval, success) \ + << "Parsing '" << p << "' for type " #type " should return " \ + << success; \ + if (success) { \ + EXPECT_EQ(r, (type)kSuccessTable[i].value); \ + } \ + } \ +} + +TEST(RE2ArgTest, Int16Test) { + PARSE_FOR_TYPE(int16_t, 0); +} + +TEST(RE2ArgTest, Uint16Test) { + PARSE_FOR_TYPE(uint16_t, 1); +} + +TEST(RE2ArgTest, Int32Test) { + PARSE_FOR_TYPE(int32_t, 2); +} + +TEST(RE2ArgTest, Uint32Test) { + PARSE_FOR_TYPE(uint32_t, 3); +} + +TEST(RE2ArgTest, Int64Test) { + PARSE_FOR_TYPE(int64_t, 4); +} + +TEST(RE2ArgTest, Uint64Test) { + PARSE_FOR_TYPE(uint64_t, 5); +} + +TEST(RE2ArgTest, ParseFromTest) { +#if !defined(_MSC_VER) + struct { + bool ParseFrom(const char* str, size_t n) { + LOG(INFO) << "str = " << str << ", n = " << n; + return true; + } + } obj1; + RE2::Arg arg1(&obj1); + EXPECT_TRUE(arg1.Parse("one", 3)); + + struct { + bool ParseFrom(const char* str, size_t n) { + LOG(INFO) << "str = " << str << ", n = " << n; + return false; + } + // Ensure that RE2::Arg works even with overloaded ParseFrom(). + void ParseFrom(const char* str) {} + } obj2; + RE2::Arg arg2(&obj2); + EXPECT_FALSE(arg2.Parse("two", 3)); +#endif +} + +} // namespace re2 |