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Diffstat (limited to 'chromium/testing/gmock/scripts/generator/cpp/gmock_class_test.py')
-rwxr-xr-x | chromium/testing/gmock/scripts/generator/cpp/gmock_class_test.py | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/chromium/testing/gmock/scripts/generator/cpp/gmock_class_test.py b/chromium/testing/gmock/scripts/generator/cpp/gmock_class_test.py new file mode 100755 index 00000000000..7aa702760d0 --- /dev/null +++ b/chromium/testing/gmock/scripts/generator/cpp/gmock_class_test.py @@ -0,0 +1,259 @@ +#!/usr/bin/env python +# +# Copyright 2009 Neal Norwitz All Rights Reserved. +# Portions Copyright 2009 Google Inc. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Tests for gmock.scripts.generator.cpp.gmock_class.""" + +__author__ = 'nnorwitz@google.com (Neal Norwitz)' + + +import os +import sys +import unittest + +# Allow the cpp imports below to work when run as a standalone script. +sys.path.append(os.path.join(os.path.dirname(__file__), '..')) + +from cpp import ast +from cpp import gmock_class + + +class TestCase(unittest.TestCase): + """Helper class that adds assert methods.""" + + def StripLeadingWhitespace(self, lines): + """Strip leading whitespace in each line in 'lines'.""" + return '\n'.join([s.lstrip() for s in lines.split('\n')]) + + def assertEqualIgnoreLeadingWhitespace(self, expected_lines, lines): + """Specialized assert that ignores the indent level.""" + self.assertEqual(expected_lines, self.StripLeadingWhitespace(lines)) + + +class GenerateMethodsTest(TestCase): + + def GenerateMethodSource(self, cpp_source): + """Convert C++ source to Google Mock output source lines.""" + method_source_lines = [] + # <test> is a pseudo-filename, it is not read or written. + builder = ast.BuilderFromSource(cpp_source, '<test>') + ast_list = list(builder.Generate()) + gmock_class._GenerateMethods(method_source_lines, cpp_source, ast_list[0]) + return '\n'.join(method_source_lines) + + def testSimpleMethod(self): + source = """ +class Foo { + public: + virtual int Bar(); +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD0(Bar,\nint());', + self.GenerateMethodSource(source)) + + def testSimpleConstMethod(self): + source = """ +class Foo { + public: + virtual void Bar(bool flag) const; +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_CONST_METHOD1(Bar,\nvoid(bool flag));', + self.GenerateMethodSource(source)) + + def testExplicitVoid(self): + source = """ +class Foo { + public: + virtual int Bar(void); +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD0(Bar,\nint(void));', + self.GenerateMethodSource(source)) + + def testStrangeNewlineInParameter(self): + source = """ +class Foo { + public: + virtual void Bar(int +a) = 0; +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD1(Bar,\nvoid(int a));', + self.GenerateMethodSource(source)) + + def testDefaultParameters(self): + source = """ +class Foo { + public: + virtual void Bar(int a, char c = 'x') = 0; +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD2(Bar,\nvoid(int, char));', + self.GenerateMethodSource(source)) + + def testMultipleDefaultParameters(self): + source = """ +class Foo { + public: + virtual void Bar(int a = 42, char c = 'x') = 0; +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD2(Bar,\nvoid(int, char));', + self.GenerateMethodSource(source)) + + def testRemovesCommentsWhenDefaultsArePresent(self): + source = """ +class Foo { + public: + virtual void Bar(int a = 42 /* a comment */, + char /* other comment */ c= 'x') = 0; +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD2(Bar,\nvoid(int, char));', + self.GenerateMethodSource(source)) + + def testDoubleSlashCommentsInParameterListAreRemoved(self): + source = """ +class Foo { + public: + virtual void Bar(int a, // inline comments should be elided. + int b // inline comments should be elided. + ) const = 0; +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_CONST_METHOD2(Bar,\nvoid(int a, int b));', + self.GenerateMethodSource(source)) + + def testCStyleCommentsInParameterListAreNotRemoved(self): + # NOTE(nnorwitz): I'm not sure if it's the best behavior to keep these + # comments. Also note that C style comments after the last parameter + # are still elided. + source = """ +class Foo { + public: + virtual const string& Bar(int /* keeper */, int b); +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD2(Bar,\nconst string&(int /* keeper */, int b));', + self.GenerateMethodSource(source)) + + def testArgsOfTemplateTypes(self): + source = """ +class Foo { + public: + virtual int Bar(const vector<int>& v, map<int, string>* output); +};""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD2(Bar,\n' + 'int(const vector<int>& v, map<int, string>* output));', + self.GenerateMethodSource(source)) + + def testReturnTypeWithOneTemplateArg(self): + source = """ +class Foo { + public: + virtual vector<int>* Bar(int n); +};""" + self.assertEqualIgnoreLeadingWhitespace( + 'MOCK_METHOD1(Bar,\nvector<int>*(int n));', + self.GenerateMethodSource(source)) + + def testReturnTypeWithManyTemplateArgs(self): + source = """ +class Foo { + public: + virtual map<int, string> Bar(); +};""" + # Comparing the comment text is brittle - we'll think of something + # better in case this gets annoying, but for now let's keep it simple. + self.assertEqualIgnoreLeadingWhitespace( + '// The following line won\'t really compile, as the return\n' + '// type has multiple template arguments. To fix it, use a\n' + '// typedef for the return type.\n' + 'MOCK_METHOD0(Bar,\nmap<int, string>());', + self.GenerateMethodSource(source)) + + +class GenerateMocksTest(TestCase): + + def GenerateMocks(self, cpp_source): + """Convert C++ source to complete Google Mock output source.""" + # <test> is a pseudo-filename, it is not read or written. + filename = '<test>' + builder = ast.BuilderFromSource(cpp_source, filename) + ast_list = list(builder.Generate()) + lines = gmock_class._GenerateMocks(filename, cpp_source, ast_list, None) + return '\n'.join(lines) + + def testNamespaces(self): + source = """ +namespace Foo { +namespace Bar { class Forward; } +namespace Baz { + +class Test { + public: + virtual void Foo(); +}; + +} // namespace Baz +} // namespace Foo +""" + expected = """\ +namespace Foo { +namespace Baz { + +class MockTest : public Test { +public: +MOCK_METHOD0(Foo, +void()); +}; + +} // namespace Baz +} // namespace Foo +""" + self.assertEqualIgnoreLeadingWhitespace( + expected, self.GenerateMocks(source)) + + def testClassWithStorageSpecifierMacro(self): + source = """ +class STORAGE_SPECIFIER Test { + public: + virtual void Foo(); +}; +""" + expected = """\ +class MockTest : public Test { +public: +MOCK_METHOD0(Foo, +void()); +}; +""" + self.assertEqualIgnoreLeadingWhitespace( + expected, self.GenerateMocks(source)) + +if __name__ == '__main__': + unittest.main() |