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gmock_output_test_.cc
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// Copyright 2008, 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 Google Mock's output in various scenarios. This ensures that
// Google Mock's messages are readable and useful.
#include "gmock/gmock.h"
#include <stdio.h>
#include <string>
#include "gtest/gtest.h"
// Silence C4100 (unreferenced formal parameter)
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable:4100)
#endif
using testing::_;
using testing::AnyNumber;
using testing::Ge;
using testing::InSequence;
using testing::NaggyMock;
using testing::Ref;
using testing::Return;
using testing::Sequence;
using testing::Value;
class MockFoo {
public:
MockFoo() {}
MOCK_METHOD3(Bar, char(const std::string& s, int i, double x));
MOCK_METHOD2(Bar2, bool(int x, int y));
MOCK_METHOD2(Bar3, void(int x, int y));
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
};
class GMockOutputTest : public testing::Test {
protected:
NaggyMock<MockFoo> foo_;
};
TEST_F(GMockOutputTest, ExpectedCall) {
testing::GMOCK_FLAG(verbose) = "info";
EXPECT_CALL(foo_, Bar2(0, _));
foo_.Bar2(0, 0); // Expected call
testing::GMOCK_FLAG(verbose) = "warning";
}
TEST_F(GMockOutputTest, ExpectedCallToVoidFunction) {
testing::GMOCK_FLAG(verbose) = "info";
EXPECT_CALL(foo_, Bar3(0, _));
foo_.Bar3(0, 0); // Expected call
testing::GMOCK_FLAG(verbose) = "warning";
}
TEST_F(GMockOutputTest, ExplicitActionsRunOut) {
EXPECT_CALL(foo_, Bar2(_, _))
.Times(2)
.WillOnce(Return(false));
foo_.Bar2(2, 2);
foo_.Bar2(1, 1); // Explicit actions in EXPECT_CALL run out.
}
TEST_F(GMockOutputTest, UnexpectedCall) {
EXPECT_CALL(foo_, Bar2(0, _));
foo_.Bar2(1, 0); // Unexpected call
foo_.Bar2(0, 0); // Expected call
}
TEST_F(GMockOutputTest, UnexpectedCallToVoidFunction) {
EXPECT_CALL(foo_, Bar3(0, _));
foo_.Bar3(1, 0); // Unexpected call
foo_.Bar3(0, 0); // Expected call
}
TEST_F(GMockOutputTest, ExcessiveCall) {
EXPECT_CALL(foo_, Bar2(0, _));
foo_.Bar2(0, 0); // Expected call
foo_.Bar2(0, 1); // Excessive call
}
TEST_F(GMockOutputTest, ExcessiveCallToVoidFunction) {
EXPECT_CALL(foo_, Bar3(0, _));
foo_.Bar3(0, 0); // Expected call
foo_.Bar3(0, 1); // Excessive call
}
TEST_F(GMockOutputTest, UninterestingCall) {
foo_.Bar2(0, 1); // Uninteresting call
}
TEST_F(GMockOutputTest, UninterestingCallToVoidFunction) {
foo_.Bar3(0, 1); // Uninteresting call
}
TEST_F(GMockOutputTest, RetiredExpectation) {
EXPECT_CALL(foo_, Bar2(_, _))
.RetiresOnSaturation();
EXPECT_CALL(foo_, Bar2(0, 0));
foo_.Bar2(1, 1);
foo_.Bar2(1, 1); // Matches a retired expectation
foo_.Bar2(0, 0);
}
TEST_F(GMockOutputTest, UnsatisfiedPrerequisite) {
{
InSequence s;
EXPECT_CALL(foo_, Bar(_, 0, _));
EXPECT_CALL(foo_, Bar2(0, 0));
EXPECT_CALL(foo_, Bar2(1, _));
}
foo_.Bar2(1, 0); // Has one immediate unsatisfied pre-requisite
foo_.Bar("Hi", 0, 0);
foo_.Bar2(0, 0);
foo_.Bar2(1, 0);
}
TEST_F(GMockOutputTest, UnsatisfiedPrerequisites) {
Sequence s1, s2;
EXPECT_CALL(foo_, Bar(_, 0, _))
.InSequence(s1);
EXPECT_CALL(foo_, Bar2(0, 0))
.InSequence(s2);
EXPECT_CALL(foo_, Bar2(1, _))
.InSequence(s1, s2);
foo_.Bar2(1, 0); // Has two immediate unsatisfied pre-requisites
foo_.Bar("Hi", 0, 0);
foo_.Bar2(0, 0);
foo_.Bar2(1, 0);
}
TEST_F(GMockOutputTest, UnsatisfiedWith) {
EXPECT_CALL(foo_, Bar2(_, _)).With(Ge());
}
TEST_F(GMockOutputTest, UnsatisfiedExpectation) {
EXPECT_CALL(foo_, Bar(_, _, _));
EXPECT_CALL(foo_, Bar2(0, _))
.Times(2);
foo_.Bar2(0, 1);
}
TEST_F(GMockOutputTest, MismatchArguments) {
const std::string s = "Hi";
EXPECT_CALL(foo_, Bar(Ref(s), _, Ge(0)));
foo_.Bar("Ho", 0, -0.1); // Mismatch arguments
foo_.Bar(s, 0, 0);
}
TEST_F(GMockOutputTest, MismatchWith) {
EXPECT_CALL(foo_, Bar2(Ge(2), Ge(1)))
.With(Ge());
foo_.Bar2(2, 3); // Mismatch With()
foo_.Bar2(2, 1);
}
TEST_F(GMockOutputTest, MismatchArgumentsAndWith) {
EXPECT_CALL(foo_, Bar2(Ge(2), Ge(1)))
.With(Ge());
foo_.Bar2(1, 3); // Mismatch arguments and mismatch With()
foo_.Bar2(2, 1);
}
TEST_F(GMockOutputTest, UnexpectedCallWithDefaultAction) {
ON_CALL(foo_, Bar2(_, _))
.WillByDefault(Return(true)); // Default action #1
ON_CALL(foo_, Bar2(1, _))
.WillByDefault(Return(false)); // Default action #2
EXPECT_CALL(foo_, Bar2(2, 2));
foo_.Bar2(1, 0); // Unexpected call, takes default action #2.
foo_.Bar2(0, 0); // Unexpected call, takes default action #1.
foo_.Bar2(2, 2); // Expected call.
}
TEST_F(GMockOutputTest, ExcessiveCallWithDefaultAction) {
ON_CALL(foo_, Bar2(_, _))
.WillByDefault(Return(true)); // Default action #1
ON_CALL(foo_, Bar2(1, _))
.WillByDefault(Return(false)); // Default action #2
EXPECT_CALL(foo_, Bar2(2, 2));
EXPECT_CALL(foo_, Bar2(1, 1));
foo_.Bar2(2, 2); // Expected call.
foo_.Bar2(2, 2); // Excessive call, takes default action #1.
foo_.Bar2(1, 1); // Expected call.
foo_.Bar2(1, 1); // Excessive call, takes default action #2.
}
TEST_F(GMockOutputTest, UninterestingCallWithDefaultAction) {
ON_CALL(foo_, Bar2(_, _))
.WillByDefault(Return(true)); // Default action #1
ON_CALL(foo_, Bar2(1, _))
.WillByDefault(Return(false)); // Default action #2
foo_.Bar2(2, 2); // Uninteresting call, takes default action #1.
foo_.Bar2(1, 1); // Uninteresting call, takes default action #2.
}
TEST_F(GMockOutputTest, ExplicitActionsRunOutWithDefaultAction) {
ON_CALL(foo_, Bar2(_, _))
.WillByDefault(Return(true)); // Default action #1
EXPECT_CALL(foo_, Bar2(_, _))
.Times(2)
.WillOnce(Return(false));
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.
}
MATCHER_P2(IsPair, first, second, "") {
return Value(arg.first, first) && Value(arg.second, second);
}
TEST_F(GMockOutputTest, PrintsMatcher) {
const testing::Matcher<int> m1 = Ge(48);
EXPECT_THAT((std::pair<int, bool>(42, true)), IsPair(m1, true));
}
void TestCatchesLeakedMocksInAdHocTests() {
MockFoo* foo = new MockFoo;
// Invokes EXPECT_CALL on foo.
EXPECT_CALL(*foo, Bar2(_, _));
foo->Bar2(2, 1);
// foo is 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";
TestCatchesLeakedMocksInAdHocTests();
return RUN_ALL_TESTS();
}
#ifdef _MSC_VER
# pragma warning(pop)
#endif
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