541 lines
16 KiB
C++
541 lines
16 KiB
C++
// Copyright 2007, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: wan@google.com (Zhanyong Wan)
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// Google Mock - a framework for writing C++ mock classes.
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//
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// This file tests the function mocker classes.
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#include "gmock/gmock-generated-function-mockers.h"
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#include <map>
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#include <string>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#if GTEST_OS_WINDOWS
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// MSDN says the header file to be included for STDMETHOD is BaseTyps.h but
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// we are getting compiler errors if we use basetyps.h, hence including
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// objbase.h for definition of STDMETHOD.
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# include <objbase.h>
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#endif // GTEST_OS_WINDOWS
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// There is a bug in MSVC (fixed in VS 2008) that prevents creating a
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// mock for a function with const arguments, so we don't test such
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// cases for MSVC versions older than 2008.
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#if !GTEST_OS_WINDOWS || (_MSC_VER >= 1500)
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# define GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
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#endif // !GTEST_OS_WINDOWS || (_MSC_VER >= 1500)
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namespace testing {
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namespace gmock_generated_function_mockers_test {
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using testing::internal::string;
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using testing::_;
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using testing::A;
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using testing::An;
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using testing::AnyNumber;
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using testing::Const;
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using testing::DoDefault;
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using testing::Eq;
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using testing::Lt;
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using testing::MockFunction;
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using testing::Ref;
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using testing::Return;
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using testing::ReturnRef;
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using testing::TypedEq;
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class FooInterface {
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public:
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virtual ~FooInterface() {}
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virtual void VoidReturning(int x) = 0;
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virtual int Nullary() = 0;
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virtual bool Unary(int x) = 0;
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virtual long Binary(short x, int y) = 0; // NOLINT
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virtual int Decimal(bool b, char c, short d, int e, long f, // NOLINT
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float g, double h, unsigned i, char* j, const string& k)
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= 0;
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virtual bool TakesNonConstReference(int& n) = 0; // NOLINT
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virtual string TakesConstReference(const int& n) = 0;
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#ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
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virtual bool TakesConst(const int x) = 0;
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#endif // GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
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virtual int OverloadedOnArgumentNumber() = 0;
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virtual int OverloadedOnArgumentNumber(int n) = 0;
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virtual int OverloadedOnArgumentType(int n) = 0;
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virtual char OverloadedOnArgumentType(char c) = 0;
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virtual int OverloadedOnConstness() = 0;
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virtual char OverloadedOnConstness() const = 0;
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virtual int TypeWithHole(int (*func)()) = 0;
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virtual int TypeWithComma(const std::map<int, string>& a_map) = 0;
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#if GTEST_OS_WINDOWS
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STDMETHOD_(int, CTNullary)() = 0;
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STDMETHOD_(bool, CTUnary)(int x) = 0;
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STDMETHOD_(int, CTDecimal)(bool b, char c, short d, int e, long f, // NOLINT
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float g, double h, unsigned i, char* j, const string& k) = 0;
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STDMETHOD_(char, CTConst)(int x) const = 0;
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#endif // GTEST_OS_WINDOWS
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};
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class MockFoo : public FooInterface {
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public:
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MockFoo() {}
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// Makes sure that a mock function parameter can be named.
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MOCK_METHOD1(VoidReturning, void(int n)); // NOLINT
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MOCK_METHOD0(Nullary, int()); // NOLINT
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// Makes sure that a mock function parameter can be unnamed.
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MOCK_METHOD1(Unary, bool(int)); // NOLINT
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MOCK_METHOD2(Binary, long(short, int)); // NOLINT
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MOCK_METHOD10(Decimal, int(bool, char, short, int, long, float, // NOLINT
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double, unsigned, char*, const string& str));
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MOCK_METHOD1(TakesNonConstReference, bool(int&)); // NOLINT
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MOCK_METHOD1(TakesConstReference, string(const int&));
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#ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
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MOCK_METHOD1(TakesConst, bool(const int)); // NOLINT
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#endif // GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
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MOCK_METHOD0(OverloadedOnArgumentNumber, int()); // NOLINT
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MOCK_METHOD1(OverloadedOnArgumentNumber, int(int)); // NOLINT
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MOCK_METHOD1(OverloadedOnArgumentType, int(int)); // NOLINT
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MOCK_METHOD1(OverloadedOnArgumentType, char(char)); // NOLINT
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MOCK_METHOD0(OverloadedOnConstness, int()); // NOLINT
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MOCK_CONST_METHOD0(OverloadedOnConstness, char()); // NOLINT
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MOCK_METHOD1(TypeWithHole, int(int (*)())); // NOLINT
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MOCK_METHOD1(TypeWithComma, int(const std::map<int, string>&)); // NOLINT
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#if GTEST_OS_WINDOWS
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MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTNullary, int());
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MOCK_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTUnary, bool(int));
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MOCK_METHOD10_WITH_CALLTYPE(STDMETHODCALLTYPE, CTDecimal, int(bool b, char c,
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short d, int e, long f, float g, double h, unsigned i, char* j,
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const string& k));
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MOCK_CONST_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTConst, char(int));
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#endif // GTEST_OS_WINDOWS
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
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};
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class FunctionMockerTest : public testing::Test {
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protected:
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FunctionMockerTest() : foo_(&mock_foo_) {}
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FooInterface* const foo_;
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MockFoo mock_foo_;
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};
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// Tests mocking a void-returning function.
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TEST_F(FunctionMockerTest, MocksVoidFunction) {
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EXPECT_CALL(mock_foo_, VoidReturning(Lt(100)));
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foo_->VoidReturning(0);
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}
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// Tests mocking a nullary function.
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TEST_F(FunctionMockerTest, MocksNullaryFunction) {
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EXPECT_CALL(mock_foo_, Nullary())
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.WillOnce(DoDefault())
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.WillOnce(Return(1));
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EXPECT_EQ(0, foo_->Nullary());
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EXPECT_EQ(1, foo_->Nullary());
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}
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// Tests mocking a unary function.
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TEST_F(FunctionMockerTest, MocksUnaryFunction) {
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EXPECT_CALL(mock_foo_, Unary(Eq(2)))
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.Times(2)
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.WillOnce(Return(true));
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EXPECT_TRUE(foo_->Unary(2));
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EXPECT_FALSE(foo_->Unary(2));
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}
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// Tests mocking a binary function.
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TEST_F(FunctionMockerTest, MocksBinaryFunction) {
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EXPECT_CALL(mock_foo_, Binary(2, _))
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.WillOnce(Return(3));
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EXPECT_EQ(3, foo_->Binary(2, 1));
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}
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// Tests mocking a decimal function.
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TEST_F(FunctionMockerTest, MocksDecimalFunction) {
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EXPECT_CALL(mock_foo_, Decimal(true, 'a', 0, 0, 1L, A<float>(),
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Lt(100), 5U, NULL, "hi"))
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.WillOnce(Return(5));
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EXPECT_EQ(5, foo_->Decimal(true, 'a', 0, 0, 1, 0, 0, 5, NULL, "hi"));
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}
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// Tests mocking a function that takes a non-const reference.
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TEST_F(FunctionMockerTest, MocksFunctionWithNonConstReferenceArgument) {
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int a = 0;
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EXPECT_CALL(mock_foo_, TakesNonConstReference(Ref(a)))
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.WillOnce(Return(true));
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EXPECT_TRUE(foo_->TakesNonConstReference(a));
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}
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// Tests mocking a function that takes a const reference.
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TEST_F(FunctionMockerTest, MocksFunctionWithConstReferenceArgument) {
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int a = 0;
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EXPECT_CALL(mock_foo_, TakesConstReference(Ref(a)))
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.WillOnce(Return("Hello"));
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EXPECT_EQ("Hello", foo_->TakesConstReference(a));
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}
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#ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
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// Tests mocking a function that takes a const variable.
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TEST_F(FunctionMockerTest, MocksFunctionWithConstArgument) {
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EXPECT_CALL(mock_foo_, TakesConst(Lt(10)))
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.WillOnce(DoDefault());
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EXPECT_FALSE(foo_->TakesConst(5));
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}
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#endif // GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
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// Tests mocking functions overloaded on the number of arguments.
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TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentNumber) {
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EXPECT_CALL(mock_foo_, OverloadedOnArgumentNumber())
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.WillOnce(Return(1));
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EXPECT_CALL(mock_foo_, OverloadedOnArgumentNumber(_))
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.WillOnce(Return(2));
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EXPECT_EQ(2, foo_->OverloadedOnArgumentNumber(1));
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EXPECT_EQ(1, foo_->OverloadedOnArgumentNumber());
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}
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// Tests mocking functions overloaded on the types of argument.
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TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentType) {
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EXPECT_CALL(mock_foo_, OverloadedOnArgumentType(An<int>()))
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.WillOnce(Return(1));
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EXPECT_CALL(mock_foo_, OverloadedOnArgumentType(TypedEq<char>('a')))
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.WillOnce(Return('b'));
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EXPECT_EQ(1, foo_->OverloadedOnArgumentType(0));
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EXPECT_EQ('b', foo_->OverloadedOnArgumentType('a'));
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}
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// Tests mocking functions overloaded on the const-ness of this object.
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TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnConstnessOfThis) {
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EXPECT_CALL(mock_foo_, OverloadedOnConstness());
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EXPECT_CALL(Const(mock_foo_), OverloadedOnConstness())
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.WillOnce(Return('a'));
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EXPECT_EQ(0, foo_->OverloadedOnConstness());
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EXPECT_EQ('a', Const(*foo_).OverloadedOnConstness());
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}
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#if GTEST_OS_WINDOWS
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// Tests mocking a nullary function with calltype.
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TEST_F(FunctionMockerTest, MocksNullaryFunctionWithCallType) {
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EXPECT_CALL(mock_foo_, CTNullary())
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.WillOnce(Return(-1))
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.WillOnce(Return(0));
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EXPECT_EQ(-1, foo_->CTNullary());
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EXPECT_EQ(0, foo_->CTNullary());
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}
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// Tests mocking a unary function with calltype.
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TEST_F(FunctionMockerTest, MocksUnaryFunctionWithCallType) {
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EXPECT_CALL(mock_foo_, CTUnary(Eq(2)))
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.Times(2)
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.WillOnce(Return(true))
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.WillOnce(Return(false));
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EXPECT_TRUE(foo_->CTUnary(2));
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EXPECT_FALSE(foo_->CTUnary(2));
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}
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// Tests mocking a decimal function with calltype.
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TEST_F(FunctionMockerTest, MocksDecimalFunctionWithCallType) {
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EXPECT_CALL(mock_foo_, CTDecimal(true, 'a', 0, 0, 1L, A<float>(),
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Lt(100), 5U, NULL, "hi"))
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.WillOnce(Return(10));
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EXPECT_EQ(10, foo_->CTDecimal(true, 'a', 0, 0, 1, 0, 0, 5, NULL, "hi"));
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}
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// Tests mocking functions overloaded on the const-ness of this object.
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TEST_F(FunctionMockerTest, MocksFunctionsConstFunctionWithCallType) {
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EXPECT_CALL(Const(mock_foo_), CTConst(_))
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.WillOnce(Return('a'));
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EXPECT_EQ('a', Const(*foo_).CTConst(0));
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}
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#endif // GTEST_OS_WINDOWS
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class MockB {
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public:
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MockB() {}
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MOCK_METHOD0(DoB, void());
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(MockB);
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};
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// Tests that functions with no EXPECT_CALL() ruls can be called any
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// number of times.
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TEST(ExpectCallTest, UnmentionedFunctionCanBeCalledAnyNumberOfTimes) {
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{
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MockB b;
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}
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{
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MockB b;
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b.DoB();
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}
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{
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MockB b;
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b.DoB();
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b.DoB();
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}
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}
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// Tests mocking template interfaces.
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template <typename T>
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class StackInterface {
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public:
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virtual ~StackInterface() {}
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// Template parameter appears in function parameter.
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virtual void Push(const T& value) = 0;
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virtual void Pop() = 0;
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virtual int GetSize() const = 0;
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// Template parameter appears in function return type.
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virtual const T& GetTop() const = 0;
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};
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template <typename T>
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class MockStack : public StackInterface<T> {
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public:
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MockStack() {}
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MOCK_METHOD1_T(Push, void(const T& elem));
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MOCK_METHOD0_T(Pop, void());
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MOCK_CONST_METHOD0_T(GetSize, int()); // NOLINT
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MOCK_CONST_METHOD0_T(GetTop, const T&());
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStack);
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};
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// Tests that template mock works.
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TEST(TemplateMockTest, Works) {
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MockStack<int> mock;
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EXPECT_CALL(mock, GetSize())
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.WillOnce(Return(0))
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.WillOnce(Return(1))
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.WillOnce(Return(0));
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EXPECT_CALL(mock, Push(_));
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int n = 5;
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EXPECT_CALL(mock, GetTop())
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.WillOnce(ReturnRef(n));
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EXPECT_CALL(mock, Pop())
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.Times(AnyNumber());
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EXPECT_EQ(0, mock.GetSize());
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mock.Push(5);
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EXPECT_EQ(1, mock.GetSize());
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EXPECT_EQ(5, mock.GetTop());
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mock.Pop();
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EXPECT_EQ(0, mock.GetSize());
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}
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#if GTEST_OS_WINDOWS
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// Tests mocking template interfaces with calltype.
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template <typename T>
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class StackInterfaceWithCallType {
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public:
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virtual ~StackInterfaceWithCallType() {}
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// Template parameter appears in function parameter.
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STDMETHOD_(void, Push)(const T& value) = 0;
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STDMETHOD_(void, Pop)() = 0;
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STDMETHOD_(int, GetSize)() const = 0;
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// Template parameter appears in function return type.
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STDMETHOD_(const T&, GetTop)() const = 0;
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};
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template <typename T>
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class MockStackWithCallType : public StackInterfaceWithCallType<T> {
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public:
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MockStackWithCallType() {}
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MOCK_METHOD1_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Push, void(const T& elem));
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MOCK_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Pop, void());
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MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetSize, int());
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MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetTop, const T&());
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStackWithCallType);
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};
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// Tests that template mock with calltype works.
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TEST(TemplateMockTestWithCallType, Works) {
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MockStackWithCallType<int> mock;
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EXPECT_CALL(mock, GetSize())
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.WillOnce(Return(0))
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.WillOnce(Return(1))
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.WillOnce(Return(0));
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EXPECT_CALL(mock, Push(_));
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int n = 5;
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EXPECT_CALL(mock, GetTop())
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.WillOnce(ReturnRef(n));
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EXPECT_CALL(mock, Pop())
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.Times(AnyNumber());
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EXPECT_EQ(0, mock.GetSize());
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mock.Push(5);
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EXPECT_EQ(1, mock.GetSize());
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EXPECT_EQ(5, mock.GetTop());
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mock.Pop();
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EXPECT_EQ(0, mock.GetSize());
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}
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#endif // GTEST_OS_WINDOWS
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#define MY_MOCK_METHODS1_ \
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MOCK_METHOD0(Overloaded, void()); \
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MOCK_CONST_METHOD1(Overloaded, int(int n)); \
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MOCK_METHOD2(Overloaded, bool(bool f, int n))
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class MockOverloadedOnArgNumber {
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public:
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MockOverloadedOnArgNumber() {}
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MY_MOCK_METHODS1_;
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnArgNumber);
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};
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TEST(OverloadedMockMethodTest, CanOverloadOnArgNumberInMacroBody) {
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MockOverloadedOnArgNumber mock;
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EXPECT_CALL(mock, Overloaded());
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EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2));
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EXPECT_CALL(mock, Overloaded(true, 1)).WillOnce(Return(true));
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mock.Overloaded();
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EXPECT_EQ(2, mock.Overloaded(1));
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EXPECT_TRUE(mock.Overloaded(true, 1));
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}
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#define MY_MOCK_METHODS2_ \
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MOCK_CONST_METHOD1(Overloaded, int(int n)); \
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MOCK_METHOD1(Overloaded, int(int n));
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class MockOverloadedOnConstness {
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public:
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MockOverloadedOnConstness() {}
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MY_MOCK_METHODS2_;
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnConstness);
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};
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TEST(OverloadedMockMethodTest, CanOverloadOnConstnessInMacroBody) {
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MockOverloadedOnConstness mock;
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const MockOverloadedOnConstness* const_mock = &mock;
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EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2));
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EXPECT_CALL(*const_mock, Overloaded(1)).WillOnce(Return(3));
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EXPECT_EQ(2, mock.Overloaded(1));
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EXPECT_EQ(3, const_mock->Overloaded(1));
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}
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TEST(MockFunctionTest, WorksForVoidNullary) {
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MockFunction<void()> foo;
|
|
EXPECT_CALL(foo, Call());
|
|
foo.Call();
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|
}
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|
|
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TEST(MockFunctionTest, WorksForNonVoidNullary) {
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|
MockFunction<int()> foo;
|
|
EXPECT_CALL(foo, Call())
|
|
.WillOnce(Return(1))
|
|
.WillOnce(Return(2));
|
|
EXPECT_EQ(1, foo.Call());
|
|
EXPECT_EQ(2, foo.Call());
|
|
}
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|
|
|
TEST(MockFunctionTest, WorksForVoidUnary) {
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|
MockFunction<void(int)> foo;
|
|
EXPECT_CALL(foo, Call(1));
|
|
foo.Call(1);
|
|
}
|
|
|
|
TEST(MockFunctionTest, WorksForNonVoidBinary) {
|
|
MockFunction<int(bool, int)> foo;
|
|
EXPECT_CALL(foo, Call(false, 42))
|
|
.WillOnce(Return(1))
|
|
.WillOnce(Return(2));
|
|
EXPECT_CALL(foo, Call(true, Ge(100)))
|
|
.WillOnce(Return(3));
|
|
EXPECT_EQ(1, foo.Call(false, 42));
|
|
EXPECT_EQ(2, foo.Call(false, 42));
|
|
EXPECT_EQ(3, foo.Call(true, 120));
|
|
}
|
|
|
|
TEST(MockFunctionTest, WorksFor10Arguments) {
|
|
MockFunction<int(bool a0, char a1, int a2, int a3, int a4,
|
|
int a5, int a6, char a7, int a8, bool a9)> foo;
|
|
EXPECT_CALL(foo, Call(_, 'a', _, _, _, _, _, _, _, _))
|
|
.WillOnce(Return(1))
|
|
.WillOnce(Return(2));
|
|
EXPECT_EQ(1, foo.Call(false, 'a', 0, 0, 0, 0, 0, 'b', 0, true));
|
|
EXPECT_EQ(2, foo.Call(true, 'a', 0, 0, 0, 0, 0, 'b', 1, false));
|
|
}
|
|
|
|
} // namespace gmock_generated_function_mockers_test
|
|
} // namespace testing
|