googletest/scripts/generator/cpp/gmock_class_test.py

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Python
Executable File

#!/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 assertEqualIgnoreLeadingWhitespace(self, expected_lines, lines):
"""Specialized assert that ignores the indent level."""
stripped_lines = '\n'.join([s.lstrip() for s in lines.split('\n')])
self.assertEqual(expected_lines, stripped_lines)
class GenerateMethodsTest(TestCase):
def GenerateMethodSource(self, cpp_source):
"""Helper method to convert C++ source to gMock 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 ''.join(method_source_lines)
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 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))
class GenerateMocksTest(TestCase):
def GenerateMocks(self, cpp_source):
"""Helper method to convert C++ source to complete gMock 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))
if __name__ == '__main__':
unittest.main()