Kaleidoscope/testing/googletest/googlemock/test/gmock_link_test.h

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19 KiB

// 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.
// Google Mock - a framework for writing C++ mock classes.
//
// This file tests that:
// a. A header file defining a mock class can be included in multiple
// translation units without causing a link error.
// b. Actions and matchers can be instantiated with identical template
// arguments in different translation units without causing link
// errors.
// The following constructs are currently tested:
// Actions:
// Return()
// Return(value)
// ReturnNull
// ReturnRef
// Assign
// SetArgPointee
// SetArrayArgument
// SetErrnoAndReturn
// Invoke(function)
// Invoke(object, method)
// InvokeWithoutArgs(function)
// InvokeWithoutArgs(object, method)
// InvokeArgument
// WithArg
// WithArgs
// WithoutArgs
// DoAll
// DoDefault
// IgnoreResult
// Throw
// ACTION()-generated
// ACTION_P()-generated
// ACTION_P2()-generated
// Matchers:
// _
// A
// An
// Eq
// Gt, Lt, Ge, Le, Ne
// NotNull
// Ref
// TypedEq
// DoubleEq
// FloatEq
// NanSensitiveDoubleEq
// NanSensitiveFloatEq
// ContainsRegex
// MatchesRegex
// EndsWith
// HasSubstr
// StartsWith
// StrCaseEq
// StrCaseNe
// StrEq
// StrNe
// ElementsAre
// ElementsAreArray
// ContainerEq
// Field
// Property
// ResultOf(function)
// ResultOf(callback)
// Pointee
// Truly(predicate)
// AddressSatisfies
// AllOf
// AnyOf
// Not
// MatcherCast<T>
//
// Please note: this test does not verify the functioning of these
// constructs, only that the programs using them will link successfully.
//
// Implementation note:
// This test requires identical definitions of Interface and Mock to be
// included in different translation units. We achieve this by writing
// them in this header and #including it in gmock_link_test.cc and
// gmock_link2_test.cc. Because the symbols generated by the compiler for
// those constructs must be identical in both translation units,
// definitions of Interface and Mock tests MUST be kept in the SAME
// NON-ANONYMOUS namespace in this file. The test fixture class LinkTest
// is defined as LinkTest1 in gmock_link_test.cc and as LinkTest2 in
// gmock_link2_test.cc to avoid producing linker errors.
#ifndef GMOCK_TEST_GMOCK_LINK_TEST_H_
#define GMOCK_TEST_GMOCK_LINK_TEST_H_
#include "gmock/gmock.h"
#if !GTEST_OS_WINDOWS_MOBILE
# include <errno.h>
#endif
#include <iostream>
#include <vector>
#include "gtest/gtest.h"
#include "gtest/internal/gtest-port.h"
using testing::_;
using testing::A;
using testing::Action;
using testing::AllOf;
using testing::AnyOf;
using testing::Assign;
using testing::ContainerEq;
using testing::DoAll;
using testing::DoDefault;
using testing::DoubleEq;
using testing::ElementsAre;
using testing::ElementsAreArray;
using testing::EndsWith;
using testing::Eq;
using testing::Field;
using testing::FloatEq;
using testing::Ge;
using testing::Gt;
using testing::HasSubstr;
using testing::IgnoreResult;
using testing::Invoke;
using testing::InvokeArgument;
using testing::InvokeWithoutArgs;
using testing::IsNull;
using testing::IsSubsetOf;
using testing::IsSupersetOf;
using testing::Le;
using testing::Lt;
using testing::Matcher;
using testing::MatcherCast;
using testing::NanSensitiveDoubleEq;
using testing::NanSensitiveFloatEq;
using testing::Ne;
using testing::Not;
using testing::NotNull;
using testing::Pointee;
using testing::Property;
using testing::Ref;
using testing::ResultOf;
using testing::Return;
using testing::ReturnNull;
using testing::ReturnRef;
using testing::SetArgPointee;
using testing::SetArrayArgument;
using testing::StartsWith;
using testing::StrCaseEq;
using testing::StrCaseNe;
using testing::StrEq;
using testing::StrNe;
using testing::Truly;
using testing::TypedEq;
using testing::WithArg;
using testing::WithArgs;
using testing::WithoutArgs;
#if !GTEST_OS_WINDOWS_MOBILE
using testing::SetErrnoAndReturn;
#endif
#if GTEST_HAS_EXCEPTIONS
using testing::Throw;
#endif
using testing::ContainsRegex;
using testing::MatchesRegex;
class Interface {
public:
virtual ~Interface() {}
virtual void VoidFromString(char* str) = 0;
virtual char* StringFromString(char* str) = 0;
virtual int IntFromString(char* str) = 0;
virtual int& IntRefFromString(char* str) = 0;
virtual void VoidFromFunc(void(*func)(char* str)) = 0;
virtual void VoidFromIntRef(int& n) = 0; // NOLINT
virtual void VoidFromFloat(float n) = 0;
virtual void VoidFromDouble(double n) = 0;
virtual void VoidFromVector(const std::vector<int>& v) = 0;
};
class Mock: public Interface {
public:
Mock() {}
MOCK_METHOD1(VoidFromString, void(char* str));
MOCK_METHOD1(StringFromString, char*(char* str));
MOCK_METHOD1(IntFromString, int(char* str));
MOCK_METHOD1(IntRefFromString, int&(char* str));
MOCK_METHOD1(VoidFromFunc, void(void(*func)(char* str)));
MOCK_METHOD1(VoidFromIntRef, void(int& n)); // NOLINT
MOCK_METHOD1(VoidFromFloat, void(float n));
MOCK_METHOD1(VoidFromDouble, void(double n));
MOCK_METHOD1(VoidFromVector, void(const std::vector<int>& v));
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(Mock);
};
class InvokeHelper {
public:
static void StaticVoidFromVoid() {}
void VoidFromVoid() {}
static void StaticVoidFromString(char* /* str */) {}
void VoidFromString(char* /* str */) {}
static int StaticIntFromString(char* /* str */) { return 1; }
static bool StaticBoolFromString(const char* /* str */) { return true; }
};
class FieldHelper {
public:
explicit FieldHelper(int a_field) : field_(a_field) {}
int field() const { return field_; }
int field_; // NOLINT -- need external access to field_ to test
// the Field matcher.
};
// Tests the linkage of the ReturnVoid action.
TEST(LinkTest, TestReturnVoid) {
Mock mock;
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(Return());
mock.VoidFromString(nullptr);
}
// Tests the linkage of the Return action.
TEST(LinkTest, TestReturn) {
Mock mock;
char ch = 'x';
EXPECT_CALL(mock, StringFromString(_)).WillOnce(Return(&ch));
mock.StringFromString(nullptr);
}
// Tests the linkage of the ReturnNull action.
TEST(LinkTest, TestReturnNull) {
Mock mock;
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(Return());
mock.VoidFromString(nullptr);
}
// Tests the linkage of the ReturnRef action.
TEST(LinkTest, TestReturnRef) {
Mock mock;
int n = 42;
EXPECT_CALL(mock, IntRefFromString(_)).WillOnce(ReturnRef(n));
mock.IntRefFromString(nullptr);
}
// Tests the linkage of the Assign action.
TEST(LinkTest, TestAssign) {
Mock mock;
char ch = 'x';
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(Assign(&ch, 'y'));
mock.VoidFromString(nullptr);
}
// Tests the linkage of the SetArgPointee action.
TEST(LinkTest, TestSetArgPointee) {
Mock mock;
char ch = 'x';
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(SetArgPointee<0>('y'));
mock.VoidFromString(&ch);
}
// Tests the linkage of the SetArrayArgument action.
TEST(LinkTest, TestSetArrayArgument) {
Mock mock;
char ch = 'x';
char ch2 = 'y';
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(SetArrayArgument<0>(&ch2,
&ch2 + 1));
mock.VoidFromString(&ch);
}
#if !GTEST_OS_WINDOWS_MOBILE
// Tests the linkage of the SetErrnoAndReturn action.
TEST(LinkTest, TestSetErrnoAndReturn) {
Mock mock;
int saved_errno = errno;
EXPECT_CALL(mock, IntFromString(_)).WillOnce(SetErrnoAndReturn(1, -1));
mock.IntFromString(nullptr);
errno = saved_errno;
}
#endif // !GTEST_OS_WINDOWS_MOBILE
// Tests the linkage of the Invoke(function) and Invoke(object, method) actions.
TEST(LinkTest, TestInvoke) {
Mock mock;
InvokeHelper test_invoke_helper;
EXPECT_CALL(mock, VoidFromString(_))
.WillOnce(Invoke(&InvokeHelper::StaticVoidFromString))
.WillOnce(Invoke(&test_invoke_helper, &InvokeHelper::VoidFromString));
mock.VoidFromString(nullptr);
mock.VoidFromString(nullptr);
}
// Tests the linkage of the InvokeWithoutArgs action.
TEST(LinkTest, TestInvokeWithoutArgs) {
Mock mock;
InvokeHelper test_invoke_helper;
EXPECT_CALL(mock, VoidFromString(_))
.WillOnce(InvokeWithoutArgs(&InvokeHelper::StaticVoidFromVoid))
.WillOnce(InvokeWithoutArgs(&test_invoke_helper,
&InvokeHelper::VoidFromVoid));
mock.VoidFromString(nullptr);
mock.VoidFromString(nullptr);
}
// Tests the linkage of the InvokeArgument action.
TEST(LinkTest, TestInvokeArgument) {
Mock mock;
char ch = 'x';
EXPECT_CALL(mock, VoidFromFunc(_)).WillOnce(InvokeArgument<0>(&ch));
mock.VoidFromFunc(InvokeHelper::StaticVoidFromString);
}
// Tests the linkage of the WithArg action.
TEST(LinkTest, TestWithArg) {
Mock mock;
EXPECT_CALL(mock, VoidFromString(_))
.WillOnce(WithArg<0>(Invoke(&InvokeHelper::StaticVoidFromString)));
mock.VoidFromString(nullptr);
}
// Tests the linkage of the WithArgs action.
TEST(LinkTest, TestWithArgs) {
Mock mock;
EXPECT_CALL(mock, VoidFromString(_))
.WillOnce(WithArgs<0>(Invoke(&InvokeHelper::StaticVoidFromString)));
mock.VoidFromString(nullptr);
}
// Tests the linkage of the WithoutArgs action.
TEST(LinkTest, TestWithoutArgs) {
Mock mock;
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(WithoutArgs(Return()));
mock.VoidFromString(nullptr);
}
// Tests the linkage of the DoAll action.
TEST(LinkTest, TestDoAll) {
Mock mock;
char ch = 'x';
EXPECT_CALL(mock, VoidFromString(_))
.WillOnce(DoAll(SetArgPointee<0>('y'), Return()));
mock.VoidFromString(&ch);
}
// Tests the linkage of the DoDefault action.
TEST(LinkTest, TestDoDefault) {
Mock mock;
char ch = 'x';
ON_CALL(mock, VoidFromString(_)).WillByDefault(Return());
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(DoDefault());
mock.VoidFromString(&ch);
}
// Tests the linkage of the IgnoreResult action.
TEST(LinkTest, TestIgnoreResult) {
Mock mock;
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(IgnoreResult(Return(42)));
mock.VoidFromString(nullptr);
}
#if GTEST_HAS_EXCEPTIONS
// Tests the linkage of the Throw action.
TEST(LinkTest, TestThrow) {
Mock mock;
EXPECT_CALL(mock, VoidFromString(_)).WillOnce(Throw(42));
EXPECT_THROW(mock.VoidFromString(nullptr), int);
}
#endif // GTEST_HAS_EXCEPTIONS
// The ACTION*() macros trigger warning C4100 (unreferenced formal
// parameter) in MSVC with -W4. Unfortunately they cannot be fixed in
// the macro definition, as the warnings are generated when the macro
// is expanded and macro expansion cannot contain #pragma. Therefore
// we suppress them here.
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable:4100)
#endif
// Tests the linkage of actions created using ACTION macro.
namespace {
ACTION(Return1) { return 1; }
}
TEST(LinkTest, TestActionMacro) {
Mock mock;
EXPECT_CALL(mock, IntFromString(_)).WillOnce(Return1());
mock.IntFromString(nullptr);
}
// Tests the linkage of actions created using ACTION_P macro.
namespace {
ACTION_P(ReturnArgument, ret_value) { return ret_value; }
}
TEST(LinkTest, TestActionPMacro) {
Mock mock;
EXPECT_CALL(mock, IntFromString(_)).WillOnce(ReturnArgument(42));
mock.IntFromString(nullptr);
}
// Tests the linkage of actions created using ACTION_P2 macro.
namespace {
ACTION_P2(ReturnEqualsEitherOf, first, second) {
return arg0 == first || arg0 == second;
}
}
#ifdef _MSC_VER
# pragma warning(pop)
#endif
TEST(LinkTest, TestActionP2Macro) {
Mock mock;
char ch = 'x';
EXPECT_CALL(mock, IntFromString(_))
.WillOnce(ReturnEqualsEitherOf("one", "two"));
mock.IntFromString(&ch);
}
// Tests the linkage of the "_" matcher.
TEST(LinkTest, TestMatcherAnything) {
Mock mock;
ON_CALL(mock, VoidFromString(_)).WillByDefault(Return());
}
// Tests the linkage of the A matcher.
TEST(LinkTest, TestMatcherA) {
Mock mock;
ON_CALL(mock, VoidFromString(A<char*>())).WillByDefault(Return());
}
// Tests the linkage of the Eq and the "bare value" matcher.
TEST(LinkTest, TestMatchersEq) {
Mock mock;
const char* p = "x";
ON_CALL(mock, VoidFromString(Eq(p))).WillByDefault(Return());
ON_CALL(mock, VoidFromString(const_cast<char*>("y")))
.WillByDefault(Return());
}
// Tests the linkage of the Lt, Gt, Le, Ge, and Ne matchers.
TEST(LinkTest, TestMatchersRelations) {
Mock mock;
ON_CALL(mock, VoidFromFloat(Lt(1.0f))).WillByDefault(Return());
ON_CALL(mock, VoidFromFloat(Gt(1.0f))).WillByDefault(Return());
ON_CALL(mock, VoidFromFloat(Le(1.0f))).WillByDefault(Return());
ON_CALL(mock, VoidFromFloat(Ge(1.0f))).WillByDefault(Return());
ON_CALL(mock, VoidFromFloat(Ne(1.0f))).WillByDefault(Return());
}
// Tests the linkage of the NotNull matcher.
TEST(LinkTest, TestMatcherNotNull) {
Mock mock;
ON_CALL(mock, VoidFromString(NotNull())).WillByDefault(Return());
}
// Tests the linkage of the IsNull matcher.
TEST(LinkTest, TestMatcherIsNull) {
Mock mock;
ON_CALL(mock, VoidFromString(IsNull())).WillByDefault(Return());
}
// Tests the linkage of the Ref matcher.
TEST(LinkTest, TestMatcherRef) {
Mock mock;
int a = 0;
ON_CALL(mock, VoidFromIntRef(Ref(a))).WillByDefault(Return());
}
// Tests the linkage of the TypedEq matcher.
TEST(LinkTest, TestMatcherTypedEq) {
Mock mock;
long a = 0;
ON_CALL(mock, VoidFromIntRef(TypedEq<int&>(a))).WillByDefault(Return());
}
// Tests the linkage of the FloatEq, DoubleEq, NanSensitiveFloatEq and
// NanSensitiveDoubleEq matchers.
TEST(LinkTest, TestMatchersFloatingPoint) {
Mock mock;
float a = 0;
ON_CALL(mock, VoidFromFloat(FloatEq(a))).WillByDefault(Return());
ON_CALL(mock, VoidFromDouble(DoubleEq(a))).WillByDefault(Return());
ON_CALL(mock, VoidFromFloat(NanSensitiveFloatEq(a))).WillByDefault(Return());
ON_CALL(mock, VoidFromDouble(NanSensitiveDoubleEq(a)))
.WillByDefault(Return());
}
// Tests the linkage of the ContainsRegex matcher.
TEST(LinkTest, TestMatcherContainsRegex) {
Mock mock;
ON_CALL(mock, VoidFromString(ContainsRegex(".*"))).WillByDefault(Return());
}
// Tests the linkage of the MatchesRegex matcher.
TEST(LinkTest, TestMatcherMatchesRegex) {
Mock mock;
ON_CALL(mock, VoidFromString(MatchesRegex(".*"))).WillByDefault(Return());
}
// Tests the linkage of the StartsWith, EndsWith, and HasSubstr matchers.
TEST(LinkTest, TestMatchersSubstrings) {
Mock mock;
ON_CALL(mock, VoidFromString(StartsWith("a"))).WillByDefault(Return());
ON_CALL(mock, VoidFromString(EndsWith("c"))).WillByDefault(Return());
ON_CALL(mock, VoidFromString(HasSubstr("b"))).WillByDefault(Return());
}
// Tests the linkage of the StrEq, StrNe, StrCaseEq, and StrCaseNe matchers.
TEST(LinkTest, TestMatchersStringEquality) {
Mock mock;
ON_CALL(mock, VoidFromString(StrEq("a"))).WillByDefault(Return());
ON_CALL(mock, VoidFromString(StrNe("a"))).WillByDefault(Return());
ON_CALL(mock, VoidFromString(StrCaseEq("a"))).WillByDefault(Return());
ON_CALL(mock, VoidFromString(StrCaseNe("a"))).WillByDefault(Return());
}
// Tests the linkage of the ElementsAre matcher.
TEST(LinkTest, TestMatcherElementsAre) {
Mock mock;
ON_CALL(mock, VoidFromVector(ElementsAre('a', _))).WillByDefault(Return());
}
// Tests the linkage of the ElementsAreArray matcher.
TEST(LinkTest, TestMatcherElementsAreArray) {
Mock mock;
char arr[] = { 'a', 'b' };
ON_CALL(mock, VoidFromVector(ElementsAreArray(arr))).WillByDefault(Return());
}
// Tests the linkage of the IsSubsetOf matcher.
TEST(LinkTest, TestMatcherIsSubsetOf) {
Mock mock;
char arr[] = {'a', 'b'};
ON_CALL(mock, VoidFromVector(IsSubsetOf(arr))).WillByDefault(Return());
}
// Tests the linkage of the IsSupersetOf matcher.
TEST(LinkTest, TestMatcherIsSupersetOf) {
Mock mock;
char arr[] = {'a', 'b'};
ON_CALL(mock, VoidFromVector(IsSupersetOf(arr))).WillByDefault(Return());
}
// Tests the linkage of the ContainerEq matcher.
TEST(LinkTest, TestMatcherContainerEq) {
Mock mock;
std::vector<int> v;
ON_CALL(mock, VoidFromVector(ContainerEq(v))).WillByDefault(Return());
}
// Tests the linkage of the Field matcher.
TEST(LinkTest, TestMatcherField) {
FieldHelper helper(0);
Matcher<const FieldHelper&> m = Field(&FieldHelper::field_, Eq(0));
EXPECT_TRUE(m.Matches(helper));
Matcher<const FieldHelper*> m2 = Field(&FieldHelper::field_, Eq(0));
EXPECT_TRUE(m2.Matches(&helper));
}
// Tests the linkage of the Property matcher.
TEST(LinkTest, TestMatcherProperty) {
FieldHelper helper(0);
Matcher<const FieldHelper&> m = Property(&FieldHelper::field, Eq(0));
EXPECT_TRUE(m.Matches(helper));
Matcher<const FieldHelper*> m2 = Property(&FieldHelper::field, Eq(0));
EXPECT_TRUE(m2.Matches(&helper));
}
// Tests the linkage of the ResultOf matcher.
TEST(LinkTest, TestMatcherResultOf) {
Matcher<char*> m = ResultOf(&InvokeHelper::StaticIntFromString, Eq(1));
EXPECT_TRUE(m.Matches(nullptr));
}
// Tests the linkage of the ResultOf matcher.
TEST(LinkTest, TestMatcherPointee) {
int n = 1;
Matcher<int*> m = Pointee(Eq(1));
EXPECT_TRUE(m.Matches(&n));
}
// Tests the linkage of the Truly matcher.
TEST(LinkTest, TestMatcherTruly) {
Matcher<const char*> m = Truly(&InvokeHelper::StaticBoolFromString);
EXPECT_TRUE(m.Matches(nullptr));
}
// Tests the linkage of the AllOf matcher.
TEST(LinkTest, TestMatcherAllOf) {
Matcher<int> m = AllOf(_, Eq(1));
EXPECT_TRUE(m.Matches(1));
}
// Tests the linkage of the AnyOf matcher.
TEST(LinkTest, TestMatcherAnyOf) {
Matcher<int> m = AnyOf(_, Eq(1));
EXPECT_TRUE(m.Matches(1));
}
// Tests the linkage of the Not matcher.
TEST(LinkTest, TestMatcherNot) {
Matcher<int> m = Not(_);
EXPECT_FALSE(m.Matches(1));
}
// Tests the linkage of the MatcherCast<T>() function.
TEST(LinkTest, TestMatcherCast) {
Matcher<const char*> m = MatcherCast<const char*>(_);
EXPECT_TRUE(m.Matches(nullptr));
}
#endif // GMOCK_TEST_GMOCK_LINK_TEST_H_