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Implements --gmock_catch_leaked_mocks and Mock::AllowLeak.

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This commit is contained in:
zhanyong.wan
2009-04-22 22:25:31 +00:00
parent 1c8eb1c059
commit df35a763b9
17 changed files with 681 additions and 43 deletions
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48
test/gmock-spec-builders_test.cc
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@@ -1612,6 +1612,43 @@ TEST_F(GMockVerboseFlagTest, InvalidFlagIsTreatedAsWarning) {
#endif // 0
TEST(AllowLeakTest, AllowsLeakingUnusedMockObject) {
MockA* a = new MockA;
Mock::AllowLeak(a);
}
TEST(AllowLeakTest, CanBeCalledBeforeOnCall) {
MockA* a = new MockA;
Mock::AllowLeak(a);
ON_CALL(*a, DoA(_)).WillByDefault(Return());
a->DoA(0);
}
TEST(AllowLeakTest, CanBeCalledAfterOnCall) {
MockA* a = new MockA;
ON_CALL(*a, DoA(_)).WillByDefault(Return());
Mock::AllowLeak(a);
}
TEST(AllowLeakTest, CanBeCalledBeforeExpectCall) {
MockA* a = new MockA;
Mock::AllowLeak(a);
EXPECT_CALL(*a, DoA(_));
a->DoA(0);
}
TEST(AllowLeakTest, CanBeCalledAfterExpectCall) {
MockA* a = new MockA;
EXPECT_CALL(*a, DoA(_)).Times(AnyNumber());
Mock::AllowLeak(a);
}
TEST(AllowLeakTest, WorksWhenBothOnCallAndExpectCallArePresent) {
MockA* a = new MockA;
ON_CALL(*a, DoA(_)).WillByDefault(Return());
EXPECT_CALL(*a, DoA(_)).Times(AnyNumber());
Mock::AllowLeak(a);
}
// Tests that we can verify and clear a mock object's expectations
// when none of its methods has expectations.
@@ -1916,3 +1953,14 @@ void Helper(MockC* c) {
}
} // namespace
int main(int argc, char **argv) {
testing::InitGoogleMock(&argc, argv);
// Ensures that the tests pass no matter what value of
// --gmock_catch_leaked_mocks and --gmock_verbose the user specifies.
testing::GMOCK_FLAG(catch_leaked_mocks) = true;
testing::GMOCK_FLAG(verbose) = testing::internal::kWarningVerbosity;
return RUN_ALL_TESTS();
}

84
test/gmock_leak_test.py Executable file
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@@ -0,0 +1,84 @@
#!/usr/bin/env python
#
# Copyright 2009, 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.
"""Tests that leaked mock objects can be caught be Google Mock."""
__author__ = 'wan@google.com (Zhanyong Wan)'
import gmock_test_utils
import os
import unittest
IS_WINDOWS = os.name == 'nt'
if IS_WINDOWS:
# TODO(wan@google.com): test the opt build too. We should do it
# when Vlad Losev's work on Google Test's Python test driver is
# done, such that we can reuse the work.
PROGRAM = r'..\build.dbg\gmock_leak_test_.exe'
else:
PROGRAM = 'gmock_leak_test_'
PROGRAM_PATH = os.path.join(gmock_test_utils.GetBuildDir(), PROGRAM)
TEST_WITH_EXPECT_CALL = PROGRAM_PATH + ' --gtest_filter=*ExpectCall*'
TEST_WITH_ON_CALL = PROGRAM_PATH + ' --gtest_filter=*OnCall*'
TEST_MULTIPLE_LEAKS = PROGRAM_PATH + ' --gtest_filter=*MultipleLeaked*'
class GMockLeakTest(unittest.TestCase):
def testDoesNotCatchLeakedMockByDefault(self):
self.assertEquals(0, os.system(TEST_WITH_EXPECT_CALL))
self.assertEquals(0, os.system(TEST_WITH_ON_CALL))
def testDoesNotCatchLeakedMockWhenDisabled(self):
self.assertEquals(
0, os.system(TEST_WITH_EXPECT_CALL + ' --gmock_catch_leaked_mocks=0'))
self.assertEquals(
0, os.system(TEST_WITH_ON_CALL + ' --gmock_catch_leaked_mocks=0'))
def testCatchesLeakedMockWhenEnabled(self):
self.assertNotEqual(
os.system(TEST_WITH_EXPECT_CALL + ' --gmock_catch_leaked_mocks'), 0)
self.assertNotEqual(
os.system(TEST_WITH_ON_CALL + ' --gmock_catch_leaked_mocks'), 0)
def testCatchesLeakedMockWhenEnabledWithExplictFlagValue(self):
self.assertNotEqual(
os.system(TEST_WITH_EXPECT_CALL + ' --gmock_catch_leaked_mocks=1'), 0)
def testCatchesMultipleLeakedMocks(self):
self.assertNotEqual(
os.system(TEST_MULTIPLE_LEAKS + ' --gmock_catch_leaked_mocks'), 0)
if __name__ == '__main__':
gmock_test_utils.Main()

95
test/gmock_leak_test_.cc Normal file
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@@ -0,0 +1,95 @@
// Copyright 2009, 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 program is for verifying that a leaked mock object can be
// caught by Google Mock's leak detector.
#include <gmock/gmock.h>
namespace {
using ::testing::Return;
class FooInterface {
public:
virtual ~FooInterface() {}
virtual void DoThis() = 0;
};
class MockFoo : public FooInterface {
public:
MOCK_METHOD0(DoThis, void());
};
TEST(LeakTest, LeakedMockWithExpectCallCausesFailureWhenLeakCheckingIsEnabled) {
MockFoo* foo = new MockFoo;
EXPECT_CALL(*foo, DoThis());
foo->DoThis();
// In order to test the leak detector, we deliberately leak foo.
// Makes sure Google Mock's leak detector can change the exit code
// to 1 even when the code is already exiting with 0.
exit(0);
}
TEST(LeakTest, LeakedMockWithOnCallCausesFailureWhenLeakCheckingIsEnabled) {
MockFoo* foo = new MockFoo;
ON_CALL(*foo, DoThis()).WillByDefault(Return());
// In order to test the leak detector, we deliberately leak foo.
// Makes sure Google Mock's leak detector can change the exit code
// to 1 even when the code is already exiting with 0.
exit(0);
}
TEST(LeakTest, CatchesMultipleLeakedMockObjects) {
MockFoo* foo1 = new MockFoo;
MockFoo* foo2 = new MockFoo;
ON_CALL(*foo1, DoThis()).WillByDefault(Return());
EXPECT_CALL(*foo2, DoThis());
foo2->DoThis();
// In order to test the leak detector, we deliberately leak foo1 and
// foo2.
// Makes sure Google Mock's leak detector can change the exit code
// to 1 even when the code is already exiting with 0.
exit(0);
}
} // namespace

2
test/gmock_output_test.py
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@@ -59,7 +59,7 @@ else:
PROGRAM = 'gmock_output_test_'
PROGRAM_PATH = os.path.join(gmock_test_utils.GetBuildDir(), PROGRAM)
COMMAND = PROGRAM_PATH + ' --gtest_stack_trace_depth=0'
COMMAND = PROGRAM_PATH + ' --gtest_stack_trace_depth=0 --gtest_print_time=0'
GOLDEN_NAME = 'gmock_output_test_golden.txt'
GOLDEN_PATH = os.path.join(gmock_test_utils.GetSourceDir(),
GOLDEN_NAME)

29
test/gmock_output_test_.cc
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@@ -40,6 +40,7 @@
#include <gtest/gtest.h>
using testing::_;
using testing::AnyNumber;
using testing::Ge;
using testing::InSequence;
using testing::Ref;
@@ -239,3 +240,31 @@ TEST_F(GMockOutputTest, ExplicitActionsRunOutWithDefaultAction) {
foo_.Bar2(2, 2);
foo_.Bar2(1, 1); // Explicit actions in EXPECT_CALL run out.
}
TEST_F(GMockOutputTest, CatchesLeakedMocks) {
MockFoo* foo1 = new MockFoo;
MockFoo* foo2 = new MockFoo;
// Invokes ON_CALL on foo1.
ON_CALL(*foo1, Bar(_, _, _)).WillByDefault(Return('a'));
// Invokes EXPECT_CALL on foo2.
EXPECT_CALL(*foo2, Bar2(_, _));
EXPECT_CALL(*foo2, Bar2(1, _));
EXPECT_CALL(*foo2, Bar3(_, _)).Times(AnyNumber());
foo2->Bar2(2, 1);
foo2->Bar2(1, 1);
// Both foo1 and foo2 are deliberately leaked.
}
int main(int argc, char **argv) {
testing::InitGoogleMock(&argc, argv);
// Ensures that the tests pass no matter what value of
// --gmock_catch_leaked_mocks and --gmock_verbose the user specifies.
testing::GMOCK_FLAG(catch_leaked_mocks) = true;
testing::GMOCK_FLAG(verbose) = "warning";
return RUN_ALL_TESTS();
}

7
test/gmock_output_test_golden.txt
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@@ -1,4 +1,3 @@
Running main() from gmock_main.cc
[ RUN ] GMockOutputTest.ExpectedCall
FILE:#: EXPECT_CALL(foo_, Bar2(0, _)) invoked
@@ -280,6 +279,8 @@ Called 2 times, but only 1 WillOnce() is specified - taking default action speci
FILE:#:
Stack trace:
[ OK ] GMockOutputTest.ExplicitActionsRunOutWithDefaultAction
[ RUN ] GMockOutputTest.CatchesLeakedMocks
[ OK ] GMockOutputTest.CatchesLeakedMocks
[ FAILED ] GMockOutputTest.UnexpectedCall
[ FAILED ] GMockOutputTest.UnexpectedCallToVoidFunction
[ FAILED ] GMockOutputTest.ExcessiveCall
@@ -294,3 +295,7 @@ Stack trace:
[ FAILED ] GMockOutputTest.UnexpectedCallWithDefaultAction
[ FAILED ] GMockOutputTest.ExcessiveCallWithDefaultAction
FILE:#: ERROR: this mock object should be deleted but never is. Its address is @0x#.
FILE:#: ERROR: this mock object should be deleted but never is. Its address is @0x#.
ERROR: 2 leaked mock objects found at program exit.

7
test/gmock_test.cc
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@@ -246,3 +246,10 @@ TEST(WideInitGoogleMockTest, CallsInitGoogleTest) {
TestInitGoogleMock(argv, new_argv, "error");
EXPECT_EQ(old_init_gtest_count + 1, g_init_gtest_count);
}
// Makes sure Google Mock flags can be accessed in code.
TEST(FlagTest, IsAccessibleInCode) {
bool dummy = testing::GMOCK_FLAG(catch_leaked_mocks) &&
testing::GMOCK_FLAG(verbose) == "";
dummy = dummy; // Avoids the "unused local variable" warning.
}