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Diffstat (limited to 'external/gtest/googlemock/test/gmock-more-actions_test.cc')
| -rw-r--r-- | external/gtest/googlemock/test/gmock-more-actions_test.cc | 1617 |
1 files changed, 1617 insertions, 0 deletions
diff --git a/external/gtest/googlemock/test/gmock-more-actions_test.cc b/external/gtest/googlemock/test/gmock-more-actions_test.cc new file mode 100644 index 0000000..7c51b78 --- /dev/null +++ b/external/gtest/googlemock/test/gmock-more-actions_test.cc @@ -0,0 +1,1617 @@ +// Copyright 2007, 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 the built-in actions in gmock-actions.h. + +#include "gmock/gmock-more-actions.h" + +#include <algorithm> +#include <functional> +#include <iterator> +#include <memory> +#include <sstream> +#include <string> +#include <tuple> +#include <vector> + +#include "gmock/gmock.h" +#include "gtest/gtest-spi.h" +#include "gtest/gtest.h" + +GTEST_DISABLE_MSC_WARNINGS_PUSH_(4577) + +namespace testing { +namespace gmock_more_actions_test { + +using ::std::plus; +using ::std::string; +using testing::Action; +using testing::DeleteArg; +using testing::Invoke; +using testing::ReturnArg; +using testing::ReturnPointee; +using testing::SaveArg; +using testing::SaveArgByMove; +using testing::SaveArgPointee; +using testing::SetArgReferee; +using testing::Unused; +using testing::WithArg; +using testing::WithoutArgs; + +// For suppressing compiler warnings on conversion possibly losing precision. +inline short Short(short n) { return n; } // NOLINT +inline char Char(char ch) { return ch; } + +// Sample functions and functors for testing Invoke() and etc. +int Nullary() { return 1; } + +bool g_done = false; + +bool Unary(int x) { return x < 0; } + +bool ByConstRef(const std::string& s) { return s == "Hi"; } + +const double g_double = 0; +bool ReferencesGlobalDouble(const double& x) { return &x == &g_double; } + +struct UnaryFunctor { + int operator()(bool x) { return x ? 1 : -1; } +}; + +struct UnaryMoveOnlyFunctor : UnaryFunctor { + UnaryMoveOnlyFunctor() = default; + UnaryMoveOnlyFunctor(const UnaryMoveOnlyFunctor&) = delete; + UnaryMoveOnlyFunctor(UnaryMoveOnlyFunctor&&) = default; +}; + +struct OneShotUnaryFunctor { + int operator()(bool x) && { return x ? 1 : -1; } +}; + +const char* Binary(const char* input, short n) { return input + n; } // NOLINT + +int Ternary(int x, char y, short z) { return x + y + z; } // NOLINT + +int SumOf4(int a, int b, int c, int d) { return a + b + c + d; } + +int SumOfFirst2(int a, int b, Unused, Unused) { return a + b; } + +int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; } + +struct SumOf5Functor { + int operator()(int a, int b, int c, int d, int e) { + return a + b + c + d + e; + } +}; + +int SumOf6(int a, int b, int c, int d, int e, int f) { + return a + b + c + d + e + f; +} + +struct SumOf6Functor { + int operator()(int a, int b, int c, int d, int e, int f) { + return a + b + c + d + e + f; + } +}; + +std::string Concat7(const char* s1, const char* s2, const char* s3, + const char* s4, const char* s5, const char* s6, + const char* s7) { + return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7; +} + +std::string Concat8(const char* s1, const char* s2, const char* s3, + const char* s4, const char* s5, const char* s6, + const char* s7, const char* s8) { + return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8; +} + +std::string Concat9(const char* s1, const char* s2, const char* s3, + const char* s4, const char* s5, const char* s6, + const char* s7, const char* s8, const char* s9) { + return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9; +} + +std::string Concat10(const char* s1, const char* s2, const char* s3, + const char* s4, const char* s5, const char* s6, + const char* s7, const char* s8, const char* s9, + const char* s10) { + return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10; +} + +class Foo { + public: + Foo() : value_(123) {} + + int Nullary() const { return value_; } + + short Unary(long x) { return static_cast<short>(value_ + x); } // NOLINT + + std::string Binary(const std::string& str, char c) const { return str + c; } + + int Ternary(int x, bool y, char z) { return value_ + x + y * z; } + + int SumOf4(int a, int b, int c, int d) const { + return a + b + c + d + value_; + } + + int SumOfLast2(Unused, Unused, int a, int b) const { return a + b; } + + int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; } + + int SumOf6(int a, int b, int c, int d, int e, int f) { + return a + b + c + d + e + f; + } + + std::string Concat7(const char* s1, const char* s2, const char* s3, + const char* s4, const char* s5, const char* s6, + const char* s7) { + return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7; + } + + std::string Concat8(const char* s1, const char* s2, const char* s3, + const char* s4, const char* s5, const char* s6, + const char* s7, const char* s8) { + return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8; + } + + std::string Concat9(const char* s1, const char* s2, const char* s3, + const char* s4, const char* s5, const char* s6, + const char* s7, const char* s8, const char* s9) { + return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9; + } + + std::string Concat10(const char* s1, const char* s2, const char* s3, + const char* s4, const char* s5, const char* s6, + const char* s7, const char* s8, const char* s9, + const char* s10) { + return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10; + } + + private: + int value_; +}; + +// Tests using Invoke() with a nullary function. +TEST(InvokeTest, Nullary) { + Action<int()> a = &Nullary; + EXPECT_EQ(1, a.Perform(std::make_tuple())); +} + +// Tests using Invoke() with a unary function. +TEST(InvokeTest, Unary) { + Action<bool(int)> a = &Unary; + EXPECT_FALSE(a.Perform(std::make_tuple(1))); + EXPECT_TRUE(a.Perform(std::make_tuple(-1))); +} + +// Tests using Invoke() with a binary function. +TEST(InvokeTest, Binary) { + Action<const char*(const char*, short)> a = &Binary; // NOLINT + const char* p = "Hello"; + EXPECT_EQ(p + 2, a.Perform(std::make_tuple(p, Short(2)))); +} + +// Tests using Invoke() with a ternary function. +TEST(InvokeTest, Ternary) { + Action<int(int, char, short)> a = &Ternary; // NOLINT + EXPECT_EQ(6, a.Perform(std::make_tuple(1, '\2', Short(3)))); +} + +// Tests using Invoke() with a 4-argument function. +TEST(InvokeTest, FunctionThatTakes4Arguments) { + Action<int(int, int, int, int)> a = &SumOf4; + EXPECT_EQ(1234, a.Perform(std::make_tuple(1000, 200, 30, 4))); +} + +// Tests using Invoke() with a 5-argument function. +TEST(InvokeTest, FunctionThatTakes5Arguments) { + Action<int(int, int, int, int, int)> a = &SumOf5; + EXPECT_EQ(12345, a.Perform(std::make_tuple(10000, 2000, 300, 40, 5))); +} + +// Tests using Invoke() with a 6-argument function. +TEST(InvokeTest, FunctionThatTakes6Arguments) { + Action<int(int, int, int, int, int, int)> a = &SumOf6; + EXPECT_EQ(123456, + a.Perform(std::make_tuple(100000, 20000, 3000, 400, 50, 6))); +} + +// A helper that turns the type of a C-string literal from const +// char[N] to const char*. +inline const char* CharPtr(const char* s) { return s; } + +// Tests using Invoke() with a 7-argument function. +TEST(InvokeTest, FunctionThatTakes7Arguments) { + Action<std::string(const char*, const char*, const char*, const char*, + const char*, const char*, const char*)> + a = &Concat7; + EXPECT_EQ("1234567", + a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"), + CharPtr("4"), CharPtr("5"), CharPtr("6"), + CharPtr("7")))); +} + +// Tests using Invoke() with a 8-argument function. +TEST(InvokeTest, FunctionThatTakes8Arguments) { + Action<std::string(const char*, const char*, const char*, const char*, + const char*, const char*, const char*, const char*)> + a = &Concat8; + EXPECT_EQ("12345678", + a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"), + CharPtr("4"), CharPtr("5"), CharPtr("6"), + CharPtr("7"), CharPtr("8")))); +} + +// Tests using Invoke() with a 9-argument function. +TEST(InvokeTest, FunctionThatTakes9Arguments) { + Action<std::string(const char*, const char*, const char*, const char*, + const char*, const char*, const char*, const char*, + const char*)> + a = &Concat9; + EXPECT_EQ("123456789", a.Perform(std::make_tuple( + CharPtr("1"), CharPtr("2"), CharPtr("3"), + CharPtr("4"), CharPtr("5"), CharPtr("6"), + CharPtr("7"), CharPtr("8"), CharPtr("9")))); +} + +// Tests using Invoke() with a 10-argument function. +TEST(InvokeTest, FunctionThatTakes10Arguments) { + Action<std::string(const char*, const char*, const char*, const char*, + const char*, const char*, const char*, const char*, + const char*, const char*)> + a = &Concat10; + EXPECT_EQ("1234567890", + a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"), + CharPtr("4"), CharPtr("5"), CharPtr("6"), + CharPtr("7"), CharPtr("8"), CharPtr("9"), + CharPtr("0")))); +} + +// Tests using Invoke() with functions with parameters declared as Unused. +TEST(InvokeTest, FunctionWithUnusedParameters) { + Action<int(int, int, double, const std::string&)> a1 = &SumOfFirst2; + std::tuple<int, int, double, std::string> dummy = + std::make_tuple(10, 2, 5.6, std::string("hi")); + EXPECT_EQ(12, a1.Perform(dummy)); + + Action<int(int, int, bool, int*)> a2 = &SumOfFirst2; + EXPECT_EQ( + 23, a2.Perform(std::make_tuple(20, 3, true, static_cast<int*>(nullptr)))); +} + +// Tests using Invoke() with methods with parameters declared as Unused. +TEST(InvokeTest, MethodWithUnusedParameters) { + Foo foo; + Action<int(std::string, bool, int, int)> a1 = Invoke(&foo, &Foo::SumOfLast2); + EXPECT_EQ(12, a1.Perform(std::make_tuple(CharPtr("hi"), true, 10, 2))); + + Action<int(char, double, int, int)> a2 = Invoke(&foo, &Foo::SumOfLast2); + EXPECT_EQ(23, a2.Perform(std::make_tuple('a', 2.5, 20, 3))); +} + +// Tests using Invoke() with a functor. +TEST(InvokeTest, Functor) { + Action<long(long, int)> a = plus<long>(); // NOLINT + EXPECT_EQ(3L, a.Perform(std::make_tuple(1, 2))); +} + +// Tests using Invoke(f) as an action of a compatible type. +TEST(InvokeTest, FunctionWithCompatibleType) { + Action<long(int, short, char, bool)> a = &SumOf4; // NOLINT + EXPECT_EQ(4321, a.Perform(std::make_tuple(4000, Short(300), Char(20), true))); +} + +// Tests using Invoke() with an object pointer and a method pointer. + +// Tests using Invoke() with a nullary method. +TEST(InvokeMethodTest, Nullary) { + Foo foo; + Action<int()> a = Invoke(&foo, &Foo::Nullary); // NOLINT + EXPECT_EQ(123, a.Perform(std::make_tuple())); +} + +// Tests using Invoke() with a unary method. +TEST(InvokeMethodTest, Unary) { + Foo foo; + Action<short(long)> a = Invoke(&foo, &Foo::Unary); // NOLINT + EXPECT_EQ(4123, a.Perform(std::make_tuple(4000))); +} + +// Tests using Invoke() with a binary method. +TEST(InvokeMethodTest, Binary) { + Foo foo; + Action<std::string(const std::string&, char)> a = Invoke(&foo, &Foo::Binary); + std::string s("Hell"); + std::tuple<std::string, char> dummy = std::make_tuple(s, 'o'); + EXPECT_EQ("Hello", a.Perform(dummy)); +} + +// Tests using Invoke() with a ternary method. +TEST(InvokeMethodTest, Ternary) { + Foo foo; + Action<int(int, bool, char)> a = Invoke(&foo, &Foo::Ternary); // NOLINT + EXPECT_EQ(1124, a.Perform(std::make_tuple(1000, true, Char(1)))); +} + +// Tests using Invoke() with a 4-argument method. +TEST(InvokeMethodTest, MethodThatTakes4Arguments) { + Foo foo; + Action<int(int, int, int, int)> a = Invoke(&foo, &Foo::SumOf4); // NOLINT + EXPECT_EQ(1357, a.Perform(std::make_tuple(1000, 200, 30, 4))); +} + +// Tests using Invoke() with a 5-argument method. +TEST(InvokeMethodTest, MethodThatTakes5Arguments) { + Foo foo; + Action<int(int, int, int, int, int)> a = + Invoke(&foo, &Foo::SumOf5); // NOLINT + EXPECT_EQ(12345, a.Perform(std::make_tuple(10000, 2000, 300, 40, 5))); +} + +// Tests using Invoke() with a 6-argument method. +TEST(InvokeMethodTest, MethodThatTakes6Arguments) { + Foo foo; + Action<int(int, int, int, int, int, int)> a = // NOLINT + Invoke(&foo, &Foo::SumOf6); + EXPECT_EQ(123456, + a.Perform(std::make_tuple(100000, 20000, 3000, 400, 50, 6))); +} + +// Tests using Invoke() with a 7-argument method. +TEST(InvokeMethodTest, MethodThatTakes7Arguments) { + Foo foo; + Action<std::string(const char*, const char*, const char*, const char*, + const char*, const char*, const char*)> + a = Invoke(&foo, &Foo::Concat7); + EXPECT_EQ("1234567", + a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"), + CharPtr("4"), CharPtr("5"), CharPtr("6"), + CharPtr("7")))); +} + +// Tests using Invoke() with a 8-argument method. +TEST(InvokeMethodTest, MethodThatTakes8Arguments) { + Foo foo; + Action<std::string(const char*, const char*, const char*, const char*, + const char*, const char*, const char*, const char*)> + a = Invoke(&foo, &Foo::Concat8); + EXPECT_EQ("12345678", + a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"), + CharPtr("4"), CharPtr("5"), CharPtr("6"), + CharPtr("7"), CharPtr("8")))); +} + +// Tests using Invoke() with a 9-argument method. +TEST(InvokeMethodTest, MethodThatTakes9Arguments) { + Foo foo; + Action<std::string(const char*, const char*, const char*, const char*, + const char*, const char*, const char*, const char*, + const char*)> + a = Invoke(&foo, &Foo::Concat9); + EXPECT_EQ("123456789", a.Perform(std::make_tuple( + CharPtr("1"), CharPtr("2"), CharPtr("3"), + CharPtr("4"), CharPtr("5"), CharPtr("6"), + CharPtr("7"), CharPtr("8"), CharPtr("9")))); +} + +// Tests using Invoke() with a 10-argument method. +TEST(InvokeMethodTest, MethodThatTakes10Arguments) { + Foo foo; + Action<std::string(const char*, const char*, const char*, const char*, + const char*, const char*, const char*, const char*, + const char*, const char*)> + a = Invoke(&foo, &Foo::Concat10); + EXPECT_EQ("1234567890", + a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"), + CharPtr("4"), CharPtr("5"), CharPtr("6"), + CharPtr("7"), CharPtr("8"), CharPtr("9"), + CharPtr("0")))); +} + +// Tests using Invoke(f) as an action of a compatible type. +TEST(InvokeMethodTest, MethodWithCompatibleType) { + Foo foo; + Action<long(int, short, char, bool)> a = // NOLINT + Invoke(&foo, &Foo::SumOf4); + EXPECT_EQ(4444, a.Perform(std::make_tuple(4000, Short(300), Char(20), true))); +} + +// Tests using WithoutArgs with an action that takes no argument. +TEST(WithoutArgsTest, NoArg) { + Action<int(int n)> a = WithoutArgs(&Nullary); // NOLINT + EXPECT_EQ(1, a.Perform(std::make_tuple(2))); +} + +// Tests using WithArg with an action that takes 1 argument. +TEST(WithArgTest, OneArg) { + Action<bool(double x, int n)> b = WithArg<1>(&Unary); // NOLINT + EXPECT_TRUE(b.Perform(std::make_tuple(1.5, -1))); + EXPECT_FALSE(b.Perform(std::make_tuple(1.5, 1))); +} + +TEST(ReturnArgActionTest, WorksForOneArgIntArg0) { + const Action<int(int)> a = ReturnArg<0>(); + EXPECT_EQ(5, a.Perform(std::make_tuple(5))); +} + +TEST(ReturnArgActionTest, WorksForMultiArgBoolArg0) { + const Action<bool(bool, bool, bool)> a = ReturnArg<0>(); + EXPECT_TRUE(a.Perform(std::make_tuple(true, false, false))); +} + +TEST(ReturnArgActionTest, WorksForMultiArgStringArg2) { + const Action<std::string(int, int, std::string, int)> a = ReturnArg<2>(); + EXPECT_EQ("seven", a.Perform(std::make_tuple(5, 6, std::string("seven"), 8))); +} + +TEST(ReturnArgActionTest, WorksForNonConstRefArg0) { + const Action<std::string&(std::string&)> a = ReturnArg<0>(); + std::string s = "12345"; + EXPECT_EQ(&s, &a.Perform(std::forward_as_tuple(s))); +} + +TEST(SaveArgActionTest, WorksForSameType) { + int result = 0; + const Action<void(int n)> a1 = SaveArg<0>(&result); + a1.Perform(std::make_tuple(5)); + EXPECT_EQ(5, result); +} + +TEST(SaveArgActionTest, WorksForCompatibleType) { + int result = 0; + const Action<void(bool, char)> a1 = SaveArg<1>(&result); + a1.Perform(std::make_tuple(true, 'a')); + EXPECT_EQ('a', result); +} + +struct MoveOnly { + explicit MoveOnly(int v) : i(v) {} + MoveOnly(MoveOnly&& o) { + i = o.i; + o.i = -1; + } + MoveOnly& operator=(MoveOnly&& o) { + i = o.i; + o.i = -1; + return *this; + } + int i; +}; + +TEST(SaveArgByMoveActionTest, WorksForSameType) { + MoveOnly result{0}; + const Action<void(MoveOnly v)> a1 = SaveArgByMove<0>(&result); + a1.Perform(std::make_tuple(MoveOnly{5})); + EXPECT_EQ(5, result.i); +} + +TEST(SaveArgByMoveActionTest, WorksForCompatibleType) { + MoveOnly result{0}; + const Action<void(bool, MoveOnly)> a1 = SaveArgByMove<1>(&result); + a1.Perform(std::make_tuple(true, MoveOnly{7})); + EXPECT_EQ(7, result.i); +} + +TEST(SaveArgPointeeActionTest, WorksForSameType) { + int result = 0; + const int value = 5; + const Action<void(const int*)> a1 = SaveArgPointee<0>(&result); + a1.Perform(std::make_tuple(&value)); + EXPECT_EQ(5, result); +} + +TEST(SaveArgPointeeActionTest, WorksForCompatibleType) { + int result = 0; + char value = 'a'; + const Action<void(bool, char*)> a1 = SaveArgPointee<1>(&result); + a1.Perform(std::make_tuple(true, &value)); + EXPECT_EQ('a', result); +} + +TEST(SetArgRefereeActionTest, WorksForSameType) { + int value = 0; + const Action<void(int&)> a1 = SetArgReferee<0>(1); + a1.Perform(std::tuple<int&>(value)); + EXPECT_EQ(1, value); +} + +TEST(SetArgRefereeActionTest, WorksForCompatibleType) { + int value = 0; + const Action<void(int, int&)> a1 = SetArgReferee<1>('a'); + a1.Perform(std::tuple<int, int&>(0, value)); + EXPECT_EQ('a', value); +} + +TEST(SetArgRefereeActionTest, WorksWithExtraArguments) { + int value = 0; + const Action<void(bool, int, int&, const char*)> a1 = SetArgReferee<2>('a'); + a1.Perform(std::tuple<bool, int, int&, const char*>(true, 0, value, "hi")); + EXPECT_EQ('a', value); +} + +// A class that can be used to verify that its destructor is called: it will set +// the bool provided to the constructor to true when destroyed. +class DeletionTester { + public: + explicit DeletionTester(bool* is_deleted) : is_deleted_(is_deleted) { + // Make sure the bit is set to false. + *is_deleted_ = false; + } + + ~DeletionTester() { *is_deleted_ = true; } + + private: + bool* is_deleted_; +}; + +TEST(DeleteArgActionTest, OneArg) { + bool is_deleted = false; + DeletionTester* t = new DeletionTester(&is_deleted); + const Action<void(DeletionTester*)> a1 = DeleteArg<0>(); // NOLINT + EXPECT_FALSE(is_deleted); + a1.Perform(std::make_tuple(t)); + EXPECT_TRUE(is_deleted); +} + +TEST(DeleteArgActionTest, TenArgs) { + bool is_deleted = false; + DeletionTester* t = new DeletionTester(&is_deleted); + const Action<void(bool, int, int, const char*, bool, int, int, int, int, + DeletionTester*)> + a1 = DeleteArg<9>(); + EXPECT_FALSE(is_deleted); + a1.Perform(std::make_tuple(true, 5, 6, CharPtr("hi"), false, 7, 8, 9, 10, t)); + EXPECT_TRUE(is_deleted); +} + +#if GTEST_HAS_EXCEPTIONS + +TEST(ThrowActionTest, ThrowsGivenExceptionInVoidFunction) { + const Action<void(int n)> a = Throw('a'); + EXPECT_THROW(a.Perform(std::make_tuple(0)), char); +} + +class MyException {}; + +TEST(ThrowActionTest, ThrowsGivenExceptionInNonVoidFunction) { + const Action<double(char ch)> a = Throw(MyException()); + EXPECT_THROW(a.Perform(std::make_tuple('0')), MyException); +} + +TEST(ThrowActionTest, ThrowsGivenExceptionInNullaryFunction) { + const Action<double()> a = Throw(MyException()); + EXPECT_THROW(a.Perform(std::make_tuple()), MyException); +} + +class Object { + public: + virtual ~Object() = default; + virtual void Func() {} +}; + +class MockObject : public Object { + public: + ~MockObject() override = default; + MOCK_METHOD(void, Func, (), (override)); +}; + +TEST(ThrowActionTest, Times0) { + EXPECT_NONFATAL_FAILURE( + [] { + try { + MockObject m; + ON_CALL(m, Func()).WillByDefault([] { throw "something"; }); + EXPECT_CALL(m, Func()).Times(0); + m.Func(); + } catch (...) { + // Exception is caught but Times(0) still triggers a failure. + } + }(), + ""); +} + +#endif // GTEST_HAS_EXCEPTIONS + +// Tests that SetArrayArgument<N>(first, last) sets the elements of the array +// pointed to by the N-th (0-based) argument to values in range [first, last). +TEST(SetArrayArgumentTest, SetsTheNthArray) { + using MyFunction = void(bool, int*, char*); + int numbers[] = {1, 2, 3}; + Action<MyFunction> a = SetArrayArgument<1>(numbers, numbers + 3); + + int n[4] = {}; + int* pn = n; + char ch[4] = {}; + char* pch = ch; + a.Perform(std::make_tuple(true, pn, pch)); + EXPECT_EQ(1, n[0]); + EXPECT_EQ(2, n[1]); + EXPECT_EQ(3, n[2]); + EXPECT_EQ(0, n[3]); + EXPECT_EQ('\0', ch[0]); + EXPECT_EQ('\0', ch[1]); + EXPECT_EQ('\0', ch[2]); + EXPECT_EQ('\0', ch[3]); + + // Tests first and last are iterators. + std::string letters = "abc"; + a = SetArrayArgument<2>(letters.begin(), letters.end()); + std::fill_n(n, 4, 0); + std::fill_n(ch, 4, '\0'); + a.Perform(std::make_tuple(true, pn, pch)); + EXPECT_EQ(0, n[0]); + EXPECT_EQ(0, n[1]); + EXPECT_EQ(0, n[2]); + EXPECT_EQ(0, n[3]); + EXPECT_EQ('a', ch[0]); + EXPECT_EQ('b', ch[1]); + EXPECT_EQ('c', ch[2]); + EXPECT_EQ('\0', ch[3]); +} + +// Tests SetArrayArgument<N>(first, last) where first == last. +TEST(SetArrayArgumentTest, SetsTheNthArrayWithEmptyRange) { + using MyFunction = void(bool, int*); + int numbers[] = {1, 2, 3}; + Action<MyFunction> a = SetArrayArgument<1>(numbers, numbers); + + int n[4] = {}; + int* pn = n; + a.Perform(std::make_tuple(true, pn)); + EXPECT_EQ(0, n[0]); + EXPECT_EQ(0, n[1]); + EXPECT_EQ(0, n[2]); + EXPECT_EQ(0, n[3]); +} + +// Tests SetArrayArgument<N>(first, last) where *first is convertible +// (but not equal) to the argument type. +TEST(SetArrayArgumentTest, SetsTheNthArrayWithConvertibleType) { + using MyFunction = void(bool, int*); + char chars[] = {97, 98, 99}; + Action<MyFunction> a = SetArrayArgument<1>(chars, chars + 3); + + int codes[4] = {111, 222, 333, 444}; + int* pcodes = codes; + a.Perform(std::make_tuple(true, pcodes)); + EXPECT_EQ(97, codes[0]); + EXPECT_EQ(98, codes[1]); + EXPECT_EQ(99, codes[2]); + EXPECT_EQ(444, codes[3]); +} + +// Test SetArrayArgument<N>(first, last) with iterator as argument. +TEST(SetArrayArgumentTest, SetsTheNthArrayWithIteratorArgument) { + using MyFunction = void(bool, std::back_insert_iterator<std::string>); + std::string letters = "abc"; + Action<MyFunction> a = SetArrayArgument<1>(letters.begin(), letters.end()); + + std::string s; + a.Perform(std::make_tuple(true, std::back_inserter(s))); + EXPECT_EQ(letters, s); +} + +TEST(ReturnPointeeTest, Works) { + int n = 42; + const Action<int()> a = ReturnPointee(&n); + EXPECT_EQ(42, a.Perform(std::make_tuple())); + + n = 43; + EXPECT_EQ(43, a.Perform(std::make_tuple())); +} + +// Tests InvokeArgument<N>(...). + +// Tests using InvokeArgument with a nullary function. +TEST(InvokeArgumentTest, Function0) { + Action<int(int, int (*)())> a = InvokeArgument<1>(); // NOLINT + EXPECT_EQ(1, a.Perform(std::make_tuple(2, &Nullary))); +} + +// Tests using InvokeArgument with a unary functor. +TEST(InvokeArgumentTest, Functor1) { + Action<int(UnaryFunctor)> a = InvokeArgument<0>(true); // NOLINT + EXPECT_EQ(1, a.Perform(std::make_tuple(UnaryFunctor()))); +} + +// Tests using InvokeArgument with a unary move-only functor. +TEST(InvokeArgumentTest, Functor1MoveOnly) { + Action<int(UnaryMoveOnlyFunctor)> a = InvokeArgument<0>(true); // NOLINT + EXPECT_EQ(1, a.Perform(std::make_tuple(UnaryMoveOnlyFunctor()))); +} + +// Tests using InvokeArgument with a one-shot unary functor. +TEST(InvokeArgumentTest, OneShotFunctor1) { + Action<int(OneShotUnaryFunctor)> a = InvokeArgument<0>(true); // NOLINT + EXPECT_EQ(1, a.Perform(std::make_tuple(OneShotUnaryFunctor()))); +} + +// Tests using InvokeArgument with a 5-ary function. +TEST(InvokeArgumentTest, Function5) { + Action<int(int (*)(int, int, int, int, int))> a = // NOLINT + InvokeArgument<0>(10000, 2000, 300, 40, 5); + EXPECT_EQ(12345, a.Perform(std::make_tuple(&SumOf5))); +} + +// Tests using InvokeArgument with a 5-ary functor. +TEST(InvokeArgumentTest, Functor5) { + Action<int(SumOf5Functor)> a = // NOLINT + InvokeArgument<0>(10000, 2000, 300, 40, 5); + EXPECT_EQ(12345, a.Perform(std::make_tuple(SumOf5Functor()))); +} + +// Tests using InvokeArgument with a 6-ary function. +TEST(InvokeArgumentTest, Function6) { + Action<int(int (*)(int, int, int, int, int, int))> a = // NOLINT + InvokeArgument<0>(100000, 20000, 3000, 400, 50, 6); + EXPECT_EQ(123456, a.Perform(std::make_tuple(&SumOf6))); +} + +// Tests using InvokeArgument with a 6-ary functor. +TEST(InvokeArgumentTest, Functor6) { + Action<int(SumOf6Functor)> a = // NOLINT + InvokeArgument<0>(100000, 20000, 3000, 400, 50, 6); + EXPECT_EQ(123456, a.Perform(std::make_tuple(SumOf6Functor()))); +} + +// Tests using InvokeArgument with a 7-ary function. +TEST(InvokeArgumentTest, Function7) { + Action<std::string(std::string (*)(const char*, const char*, const char*, + const char*, const char*, const char*, + const char*))> + a = InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7"); + EXPECT_EQ("1234567", a.Perform(std::make_tuple(&Concat7))); +} + +// Tests using InvokeArgument with a 8-ary function. +TEST(InvokeArgumentTest, Function8) { + Action<std::string(std::string (*)(const char*, const char*, const char*, + const char*, const char*, const char*, + const char*, const char*))> + a = InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8"); + EXPECT_EQ("12345678", a.Perform(std::make_tuple(&Concat8))); +} + +// Tests using InvokeArgument with a 9-ary function. +TEST(InvokeArgumentTest, Function9) { + Action<std::string(std::string (*)(const char*, const char*, const char*, + const char*, const char*, const char*, + const char*, const char*, const char*))> + a = InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8", "9"); + EXPECT_EQ("123456789", a.Perform(std::make_tuple(&Concat9))); +} + +// Tests using InvokeArgument with a 10-ary function. +TEST(InvokeArgumentTest, Function10) { + Action<std::string(std::string (*)( + const char*, const char*, const char*, const char*, const char*, + const char*, const char*, const char*, const char*, const char*))> + a = InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8", "9", "0"); + EXPECT_EQ("1234567890", a.Perform(std::make_tuple(&Concat10))); +} + +// Tests using InvokeArgument with a function that takes a pointer argument. +TEST(InvokeArgumentTest, ByPointerFunction) { + Action<const char*(const char* (*)(const char* input, short n))> // NOLINT + a = InvokeArgument<0>(static_cast<const char*>("Hi"), Short(1)); + EXPECT_STREQ("i", a.Perform(std::make_tuple(&Binary))); +} + +// Tests using InvokeArgument with a function that takes a const char* +// by passing it a C-string literal. +TEST(InvokeArgumentTest, FunctionWithCStringLiteral) { + Action<const char*(const char* (*)(const char* input, short n))> // NOLINT + a = InvokeArgument<0>("Hi", Short(1)); + EXPECT_STREQ("i", a.Perform(std::make_tuple(&Binary))); +} + +// Tests using InvokeArgument with a function that takes a const reference. +TEST(InvokeArgumentTest, ByConstReferenceFunction) { + Action<bool(bool (*function)(const std::string& s))> a = // NOLINT + InvokeArgument<0>(std::string("Hi")); + // When action 'a' is constructed, it makes a copy of the temporary + // string object passed to it, so it's OK to use 'a' later, when the + // temporary object has already died. + EXPECT_TRUE(a.Perform(std::make_tuple(&ByConstRef))); +} + +// Tests using InvokeArgument with ByRef() and a function that takes a +// const reference. +TEST(InvokeArgumentTest, ByExplicitConstReferenceFunction) { + Action<bool(bool (*)(const double& x))> a = // NOLINT + InvokeArgument<0>(ByRef(g_double)); + // The above line calls ByRef() on a const value. + EXPECT_TRUE(a.Perform(std::make_tuple(&ReferencesGlobalDouble))); + + double x = 0; + a = InvokeArgument<0>(ByRef(x)); // This calls ByRef() on a non-const. + EXPECT_FALSE(a.Perform(std::make_tuple(&ReferencesGlobalDouble))); +} + +TEST(InvokeArgumentTest, MoveOnlyType) { + struct Marker {}; + struct { + // Method takes a unique_ptr (to a type we don't care about), and an + // invocable type. + MOCK_METHOD(bool, MockMethod, + (std::unique_ptr<Marker>, std::function<int()>), ()); + } mock; + + ON_CALL(mock, MockMethod(_, _)).WillByDefault(InvokeArgument<1>()); + + // This compiles, but is a little opaque as a workaround: + ON_CALL(mock, MockMethod(_, _)) + .WillByDefault(WithArg<1>(InvokeArgument<0>())); +} + +// Tests DoAll(a1, a2). +TEST(DoAllTest, TwoActions) { + int n = 0; + Action<int(int*)> a = DoAll(SetArgPointee<0>(1), // NOLINT + Return(2)); + EXPECT_EQ(2, a.Perform(std::make_tuple(&n))); + EXPECT_EQ(1, n); +} + +// Tests DoAll(a1, a2, a3). +TEST(DoAllTest, ThreeActions) { + int m = 0, n = 0; + Action<int(int*, int*)> a = DoAll(SetArgPointee<0>(1), // NOLINT + SetArgPointee<1>(2), Return(3)); + EXPECT_EQ(3, a.Perform(std::make_tuple(&m, &n))); + EXPECT_EQ(1, m); + EXPECT_EQ(2, n); +} + +// Tests DoAll(a1, a2, a3, a4). +TEST(DoAllTest, FourActions) { + int m = 0, n = 0; + char ch = '\0'; + Action<int(int*, int*, char*)> a = // NOLINT + DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'), + Return(3)); + EXPECT_EQ(3, a.Perform(std::make_tuple(&m, &n, &ch))); + EXPECT_EQ(1, m); + EXPECT_EQ(2, n); + EXPECT_EQ('a', ch); +} + +// Tests DoAll(a1, a2, a3, a4, a5). +TEST(DoAllTest, FiveActions) { + int m = 0, n = 0; + char a = '\0', b = '\0'; + Action<int(int*, int*, char*, char*)> action = // NOLINT + DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'), + SetArgPointee<3>('b'), Return(3)); + EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b))); + EXPECT_EQ(1, m); + EXPECT_EQ(2, n); + EXPECT_EQ('a', a); + EXPECT_EQ('b', b); +} + +// Tests DoAll(a1, a2, ..., a6). +TEST(DoAllTest, SixActions) { + int m = 0, n = 0; + char a = '\0', b = '\0', c = '\0'; + Action<int(int*, int*, char*, char*, char*)> action = // NOLINT + DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'), + SetArgPointee<3>('b'), SetArgPointee<4>('c'), Return(3)); + EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c))); + EXPECT_EQ(1, m); + EXPECT_EQ(2, n); + EXPECT_EQ('a', a); + EXPECT_EQ('b', b); + EXPECT_EQ('c', c); +} + +// Tests DoAll(a1, a2, ..., a7). +TEST(DoAllTest, SevenActions) { + int m = 0, n = 0; + char a = '\0', b = '\0', c = '\0', d = '\0'; + Action<int(int*, int*, char*, char*, char*, char*)> action = // NOLINT + DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'), + SetArgPointee<3>('b'), SetArgPointee<4>('c'), SetArgPointee<5>('d'), + Return(3)); + EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c, &d))); + EXPECT_EQ(1, m); + EXPECT_EQ(2, n); + EXPECT_EQ('a', a); + EXPECT_EQ('b', b); + EXPECT_EQ('c', c); + EXPECT_EQ('d', d); +} + +// Tests DoAll(a1, a2, ..., a8). +TEST(DoAllTest, EightActions) { + int m = 0, n = 0; + char a = '\0', b = '\0', c = '\0', d = '\0', e = '\0'; + Action<int(int*, int*, char*, char*, char*, char*, // NOLINT + char*)> + action = + DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'), + SetArgPointee<3>('b'), SetArgPointee<4>('c'), + SetArgPointee<5>('d'), SetArgPointee<6>('e'), Return(3)); + EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c, &d, &e))); + EXPECT_EQ(1, m); + EXPECT_EQ(2, n); + EXPECT_EQ('a', a); + EXPECT_EQ('b', b); + EXPECT_EQ('c', c); + EXPECT_EQ('d', d); + EXPECT_EQ('e', e); +} + +// Tests DoAll(a1, a2, ..., a9). +TEST(DoAllTest, NineActions) { + int m = 0, n = 0; + char a = '\0', b = '\0', c = '\0', d = '\0', e = '\0', f = '\0'; + Action<int(int*, int*, char*, char*, char*, char*, // NOLINT + char*, char*)> + action = DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), + SetArgPointee<2>('a'), SetArgPointee<3>('b'), + SetArgPointee<4>('c'), SetArgPointee<5>('d'), + SetArgPointee<6>('e'), SetArgPointee<7>('f'), Return(3)); + EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c, &d, &e, &f))); + EXPECT_EQ(1, m); + EXPECT_EQ(2, n); + EXPECT_EQ('a', a); + EXPECT_EQ('b', b); + EXPECT_EQ('c', c); + EXPECT_EQ('d', d); + EXPECT_EQ('e', e); + EXPECT_EQ('f', f); +} + +// Tests DoAll(a1, a2, ..., a10). +TEST(DoAllTest, TenActions) { + int m = 0, n = 0; + char a = '\0', b = '\0', c = '\0', d = '\0'; + char e = '\0', f = '\0', g = '\0'; + Action<int(int*, int*, char*, char*, char*, char*, // NOLINT + char*, char*, char*)> + action = + DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'), + SetArgPointee<3>('b'), SetArgPointee<4>('c'), + SetArgPointee<5>('d'), SetArgPointee<6>('e'), + SetArgPointee<7>('f'), SetArgPointee<8>('g'), Return(3)); + EXPECT_EQ( + 3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c, &d, &e, &f, &g))); + EXPECT_EQ(1, m); + EXPECT_EQ(2, n); + EXPECT_EQ('a', a); + EXPECT_EQ('b', b); + EXPECT_EQ('c', c); + EXPECT_EQ('d', d); + EXPECT_EQ('e', e); + EXPECT_EQ('f', f); + EXPECT_EQ('g', g); +} + +TEST(DoAllTest, NoArgs) { + bool ran_first = false; + Action<bool()> a = + DoAll([&] { ran_first = true; }, [&] { return ran_first; }); + EXPECT_TRUE(a.Perform({})); +} + +TEST(DoAllTest, MoveOnlyArgs) { + bool ran_first = false; + Action<int(std::unique_ptr<int>)> a = + DoAll(InvokeWithoutArgs([&] { ran_first = true; }), + [](std::unique_ptr<int> p) { return *p; }); + EXPECT_EQ(7, a.Perform(std::make_tuple(std::unique_ptr<int>(new int(7))))); + EXPECT_TRUE(ran_first); +} + +TEST(DoAllTest, ImplicitlyConvertsActionArguments) { + bool ran_first = false; + // Action<void(std::vector<int>)> isn't an + // Action<void(const std::vector<int>&) but can be converted. + Action<void(std::vector<int>)> first = [&] { ran_first = true; }; + Action<int(std::vector<int>)> a = + DoAll(first, [](std::vector<int> arg) { return arg.front(); }); + EXPECT_EQ(7, a.Perform(std::make_tuple(std::vector<int>{7}))); + EXPECT_TRUE(ran_first); +} + +// 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. +// Also suppress C4503 decorated name length exceeded, name was truncated +GTEST_DISABLE_MSC_WARNINGS_PUSH_(4100 4503) +// Tests the ACTION*() macro family. + +// Tests that ACTION() can define an action that doesn't reference the +// mock function arguments. +ACTION(Return5) { return 5; } + +TEST(ActionMacroTest, WorksWhenNotReferencingArguments) { + Action<double()> a1 = Return5(); + EXPECT_DOUBLE_EQ(5, a1.Perform(std::make_tuple())); + + Action<int(double, bool)> a2 = Return5(); + EXPECT_EQ(5, a2.Perform(std::make_tuple(1, true))); +} + +// Tests that ACTION() can define an action that returns void. +ACTION(IncrementArg1) { (*arg1)++; } + +TEST(ActionMacroTest, WorksWhenReturningVoid) { + Action<void(int, int*)> a1 = IncrementArg1(); + int n = 0; + a1.Perform(std::make_tuple(5, &n)); + EXPECT_EQ(1, n); +} + +// Tests that the body of ACTION() can reference the type of the +// argument. +ACTION(IncrementArg2) { + StaticAssertTypeEq<int*, arg2_type>(); + arg2_type temp = arg2; + (*temp)++; +} + +TEST(ActionMacroTest, CanReferenceArgumentType) { + Action<void(int, bool, int*)> a1 = IncrementArg2(); + int n = 0; + a1.Perform(std::make_tuple(5, false, &n)); + EXPECT_EQ(1, n); +} + +// Tests that the body of ACTION() can reference the argument tuple +// via args_type and args. +ACTION(Sum2) { + StaticAssertTypeEq<std::tuple<int, char, int*>, args_type>(); + args_type args_copy = args; + return std::get<0>(args_copy) + std::get<1>(args_copy); +} + +TEST(ActionMacroTest, CanReferenceArgumentTuple) { + Action<int(int, char, int*)> a1 = Sum2(); + int dummy = 0; + EXPECT_EQ(11, a1.Perform(std::make_tuple(5, Char(6), &dummy))); +} + +namespace { + +// Tests that the body of ACTION() can reference the mock function +// type. +int Dummy(bool flag) { return flag ? 1 : 0; } + +} // namespace + +ACTION(InvokeDummy) { + StaticAssertTypeEq<int(bool), function_type>(); + function_type* fp = &Dummy; + return (*fp)(true); +} + +TEST(ActionMacroTest, CanReferenceMockFunctionType) { + Action<int(bool)> a1 = InvokeDummy(); + EXPECT_EQ(1, a1.Perform(std::make_tuple(true))); + EXPECT_EQ(1, a1.Perform(std::make_tuple(false))); +} + +// Tests that the body of ACTION() can reference the mock function's +// return type. +ACTION(InvokeDummy2) { + StaticAssertTypeEq<int, return_type>(); + return_type result = Dummy(true); + return result; +} + +TEST(ActionMacroTest, CanReferenceMockFunctionReturnType) { + Action<int(bool)> a1 = InvokeDummy2(); + EXPECT_EQ(1, a1.Perform(std::make_tuple(true))); + EXPECT_EQ(1, a1.Perform(std::make_tuple(false))); +} + +// Tests that ACTION() works for arguments passed by const reference. +ACTION(ReturnAddrOfConstBoolReferenceArg) { + StaticAssertTypeEq<const bool&, arg1_type>(); + return &arg1; +} + +TEST(ActionMacroTest, WorksForConstReferenceArg) { + Action<const bool*(int, const bool&)> a = ReturnAddrOfConstBoolReferenceArg(); + const bool b = false; + EXPECT_EQ(&b, a.Perform(std::tuple<int, const bool&>(0, b))); +} + +// Tests that ACTION() works for arguments passed by non-const reference. +ACTION(ReturnAddrOfIntReferenceArg) { + StaticAssertTypeEq<int&, arg0_type>(); + return &arg0; +} + +TEST(ActionMacroTest, WorksForNonConstReferenceArg) { + Action<int*(int&, bool, int)> a = ReturnAddrOfIntReferenceArg(); + int n = 0; + EXPECT_EQ(&n, a.Perform(std::tuple<int&, bool, int>(n, true, 1))); +} + +// Tests that ACTION() can be used in a namespace. +namespace action_test { +ACTION(Sum) { return arg0 + arg1; } +} // namespace action_test + +TEST(ActionMacroTest, WorksInNamespace) { + Action<int(int, int)> a1 = action_test::Sum(); + EXPECT_EQ(3, a1.Perform(std::make_tuple(1, 2))); +} + +// Tests that the same ACTION definition works for mock functions with +// different argument numbers. +ACTION(PlusTwo) { return arg0 + 2; } + +TEST(ActionMacroTest, WorksForDifferentArgumentNumbers) { + Action<int(int)> a1 = PlusTwo(); + EXPECT_EQ(4, a1.Perform(std::make_tuple(2))); + + Action<double(float, void*)> a2 = PlusTwo(); + int dummy; + EXPECT_DOUBLE_EQ(6, a2.Perform(std::make_tuple(4.0f, &dummy))); +} + +// Tests that ACTION_P can define a parameterized action. +ACTION_P(Plus, n) { return arg0 + n; } + +TEST(ActionPMacroTest, DefinesParameterizedAction) { + Action<int(int m, bool t)> a1 = Plus(9); + EXPECT_EQ(10, a1.Perform(std::make_tuple(1, true))); +} + +// Tests that the body of ACTION_P can reference the argument types +// and the parameter type. +ACTION_P(TypedPlus, n) { + arg0_type t1 = arg0; + n_type t2 = n; + return t1 + t2; +} + +TEST(ActionPMacroTest, CanReferenceArgumentAndParameterTypes) { + Action<int(char m, bool t)> a1 = TypedPlus(9); + EXPECT_EQ(10, a1.Perform(std::make_tuple(Char(1), true))); +} + +// Tests that a parameterized action can be used in any mock function +// whose type is compatible. +TEST(ActionPMacroTest, WorksInCompatibleMockFunction) { + Action<std::string(const std::string& s)> a1 = Plus("tail"); + const std::string re = "re"; + std::tuple<const std::string> dummy = std::make_tuple(re); + EXPECT_EQ("retail", a1.Perform(dummy)); +} + +// Tests that we can use ACTION*() to define actions overloaded on the +// number of parameters. + +ACTION(OverloadedAction) { return arg0 ? arg1 : "hello"; } + +ACTION_P(OverloadedAction, default_value) { + return arg0 ? arg1 : default_value; +} + +ACTION_P2(OverloadedAction, true_value, false_value) { + return arg0 ? true_value : false_value; +} + +TEST(ActionMacroTest, CanDefineOverloadedActions) { + using MyAction = Action<const char*(bool, const char*)>; + + const MyAction a1 = OverloadedAction(); + EXPECT_STREQ("hello", a1.Perform(std::make_tuple(false, CharPtr("world")))); + EXPECT_STREQ("world", a1.Perform(std::make_tuple(true, CharPtr("world")))); + + const MyAction a2 = OverloadedAction("hi"); + EXPECT_STREQ("hi", a2.Perform(std::make_tuple(false, CharPtr("world")))); + EXPECT_STREQ("world", a2.Perform(std::make_tuple(true, CharPtr("world")))); + + const MyAction a3 = OverloadedAction("hi", "you"); + EXPECT_STREQ("hi", a3.Perform(std::make_tuple(true, CharPtr("world")))); + EXPECT_STREQ("you", a3.Perform(std::make_tuple(false, CharPtr("world")))); +} + +// Tests ACTION_Pn where n >= 3. + +ACTION_P3(Plus, m, n, k) { return arg0 + m + n + k; } + +TEST(ActionPnMacroTest, WorksFor3Parameters) { + Action<double(int m, bool t)> a1 = Plus(100, 20, 3.4); + EXPECT_DOUBLE_EQ(3123.4, a1.Perform(std::make_tuple(3000, true))); + + Action<std::string(const std::string& s)> a2 = Plus("tail", "-", ">"); + const std::string re = "re"; + std::tuple<const std::string> dummy = std::make_tuple(re); + EXPECT_EQ("retail->", a2.Perform(dummy)); +} + +ACTION_P4(Plus, p0, p1, p2, p3) { return arg0 + p0 + p1 + p2 + p3; } + +TEST(ActionPnMacroTest, WorksFor4Parameters) { + Action<int(int)> a1 = Plus(1, 2, 3, 4); + EXPECT_EQ(10 + 1 + 2 + 3 + 4, a1.Perform(std::make_tuple(10))); +} + +ACTION_P5(Plus, p0, p1, p2, p3, p4) { return arg0 + p0 + p1 + p2 + p3 + p4; } + +TEST(ActionPnMacroTest, WorksFor5Parameters) { + Action<int(int)> a1 = Plus(1, 2, 3, 4, 5); + EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5, a1.Perform(std::make_tuple(10))); +} + +ACTION_P6(Plus, p0, p1, p2, p3, p4, p5) { + return arg0 + p0 + p1 + p2 + p3 + p4 + p5; +} + +TEST(ActionPnMacroTest, WorksFor6Parameters) { + Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6); + EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6, a1.Perform(std::make_tuple(10))); +} + +ACTION_P7(Plus, p0, p1, p2, p3, p4, p5, p6) { + return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6; +} + +TEST(ActionPnMacroTest, WorksFor7Parameters) { + Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7); + EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7, a1.Perform(std::make_tuple(10))); +} + +ACTION_P8(Plus, p0, p1, p2, p3, p4, p5, p6, p7) { + return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7; +} + +TEST(ActionPnMacroTest, WorksFor8Parameters) { + Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8); + EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8, + a1.Perform(std::make_tuple(10))); +} + +ACTION_P9(Plus, p0, p1, p2, p3, p4, p5, p6, p7, p8) { + return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8; +} + +TEST(ActionPnMacroTest, WorksFor9Parameters) { + Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8, 9); + EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9, + a1.Perform(std::make_tuple(10))); +} + +ACTION_P10(Plus, p0, p1, p2, p3, p4, p5, p6, p7, p8, last_param) { + arg0_type t0 = arg0; + last_param_type t9 = last_param; + return t0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + t9; +} + +TEST(ActionPnMacroTest, WorksFor10Parameters) { + Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); + EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10, + a1.Perform(std::make_tuple(10))); +} + +// Tests that the action body can promote the parameter types. + +ACTION_P2(PadArgument, prefix, suffix) { + // The following lines promote the two parameters to desired types. + std::string prefix_str(prefix); + char suffix_char = static_cast<char>(suffix); + return prefix_str + arg0 + suffix_char; +} + +TEST(ActionPnMacroTest, SimpleTypePromotion) { + Action<std::string(const char*)> no_promo = + PadArgument(std::string("foo"), 'r'); + Action<std::string(const char*)> promo = + PadArgument("foo", static_cast<int>('r')); + EXPECT_EQ("foobar", no_promo.Perform(std::make_tuple(CharPtr("ba")))); + EXPECT_EQ("foobar", promo.Perform(std::make_tuple(CharPtr("ba")))); +} + +// Tests that we can partially restrict parameter types using a +// straight-forward pattern. + +// Defines a generic action that doesn't restrict the types of its +// parameters. +ACTION_P3(ConcatImpl, a, b, c) { + std::stringstream ss; + ss << a << b << c; + return ss.str(); +} + +// Next, we try to restrict that either the first parameter is a +// string, or the second parameter is an int. + +// Defines a partially specialized wrapper that restricts the first +// parameter to std::string. +template <typename T1, typename T2> +// ConcatImplActionP3 is the class template ACTION_P3 uses to +// implement ConcatImpl. We shouldn't change the name as this +// pattern requires the user to use it directly. +ConcatImplActionP3<std::string, T1, T2> Concat(const std::string& a, T1 b, + T2 c) { + GTEST_INTENTIONAL_CONST_COND_PUSH_() + if (true) { + GTEST_INTENTIONAL_CONST_COND_POP_() + // This branch verifies that ConcatImpl() can be invoked without + // explicit template arguments. + return ConcatImpl(a, b, c); + } else { + // This branch verifies that ConcatImpl() can also be invoked with + // explicit template arguments. It doesn't really need to be + // executed as this is a compile-time verification. + return ConcatImpl<std::string, T1, T2>(a, b, c); + } +} + +// Defines another partially specialized wrapper that restricts the +// second parameter to int. +template <typename T1, typename T2> +ConcatImplActionP3<T1, int, T2> Concat(T1 a, int b, T2 c) { + return ConcatImpl(a, b, c); +} + +TEST(ActionPnMacroTest, CanPartiallyRestrictParameterTypes) { + Action<const std::string()> a1 = Concat("Hello", "1", 2); + EXPECT_EQ("Hello12", a1.Perform(std::make_tuple())); + + a1 = Concat(1, 2, 3); + EXPECT_EQ("123", a1.Perform(std::make_tuple())); +} + +// Verifies the type of an ACTION*. + +ACTION(DoFoo) {} +ACTION_P(DoFoo, p) {} +ACTION_P2(DoFoo, p0, p1) {} + +TEST(ActionPnMacroTest, TypesAreCorrect) { + // DoFoo() must be assignable to a DoFooAction variable. + DoFooAction a0 = DoFoo(); + + // DoFoo(1) must be assignable to a DoFooActionP variable. + DoFooActionP<int> a1 = DoFoo(1); + + // DoFoo(p1, ..., pk) must be assignable to a DoFooActionPk + // variable, and so on. + DoFooActionP2<int, char> a2 = DoFoo(1, '2'); + PlusActionP3<int, int, char> a3 = Plus(1, 2, '3'); + PlusActionP4<int, int, int, char> a4 = Plus(1, 2, 3, '4'); + PlusActionP5<int, int, int, int, char> a5 = Plus(1, 2, 3, 4, '5'); + PlusActionP6<int, int, int, int, int, char> a6 = Plus(1, 2, 3, 4, 5, '6'); + PlusActionP7<int, int, int, int, int, int, char> a7 = + Plus(1, 2, 3, 4, 5, 6, '7'); + PlusActionP8<int, int, int, int, int, int, int, char> a8 = + Plus(1, 2, 3, 4, 5, 6, 7, '8'); + PlusActionP9<int, int, int, int, int, int, int, int, char> a9 = + Plus(1, 2, 3, 4, 5, 6, 7, 8, '9'); + PlusActionP10<int, int, int, int, int, int, int, int, int, char> a10 = + Plus(1, 2, 3, 4, 5, 6, 7, 8, 9, '0'); + + // Avoid "unused variable" warnings. + (void)a0; + (void)a1; + (void)a2; + (void)a3; + (void)a4; + (void)a5; + (void)a6; + (void)a7; + (void)a8; + (void)a9; + (void)a10; +} + +// Tests that an ACTION_P*() action can be explicitly instantiated +// with reference-typed parameters. + +ACTION_P(Plus1, x) { return x; } +ACTION_P2(Plus2, x, y) { return x + y; } +ACTION_P3(Plus3, x, y, z) { return x + y + z; } +ACTION_P10(Plus10, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) { + return a0 + a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8 + a9; +} + +TEST(ActionPnMacroTest, CanExplicitlyInstantiateWithReferenceTypes) { + int x = 1, y = 2, z = 3; + const std::tuple<> empty = std::make_tuple(); + + Action<int()> a = Plus1<int&>(x); + EXPECT_EQ(1, a.Perform(empty)); + + a = Plus2<const int&, int&>(x, y); + EXPECT_EQ(3, a.Perform(empty)); + + a = Plus3<int&, const int&, int&>(x, y, z); + EXPECT_EQ(6, a.Perform(empty)); + + int n[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; + a = Plus10<const int&, int&, const int&, int&, const int&, int&, const int&, + int&, const int&, int&>(n[0], n[1], n[2], n[3], n[4], n[5], n[6], + n[7], n[8], n[9]); + EXPECT_EQ(55, a.Perform(empty)); +} + +class TenArgConstructorClass { + public: + TenArgConstructorClass(int a1, int a2, int a3, int a4, int a5, int a6, int a7, + int a8, int a9, int a10) + : value_(a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8 + a9 + a10) {} + int value_; +}; + +// Tests that ACTION_TEMPLATE works when there is no value parameter. +ACTION_TEMPLATE(CreateNew, HAS_1_TEMPLATE_PARAMS(typename, T), + AND_0_VALUE_PARAMS()) { + return new T; +} + +TEST(ActionTemplateTest, WorksWithoutValueParam) { + const Action<int*()> a = CreateNew<int>(); + int* p = a.Perform(std::make_tuple()); + delete p; +} + +// Tests that ACTION_TEMPLATE works when there are value parameters. +ACTION_TEMPLATE(CreateNew, HAS_1_TEMPLATE_PARAMS(typename, T), + AND_1_VALUE_PARAMS(a0)) { + return new T(a0); +} + +TEST(ActionTemplateTest, WorksWithValueParams) { + const Action<int*()> a = CreateNew<int>(42); + int* p = a.Perform(std::make_tuple()); + EXPECT_EQ(42, *p); + delete p; +} + +// Tests that ACTION_TEMPLATE works for integral template parameters. +ACTION_TEMPLATE(MyDeleteArg, HAS_1_TEMPLATE_PARAMS(int, k), + AND_0_VALUE_PARAMS()) { + delete std::get<k>(args); +} + +// Resets a bool variable in the destructor. +class BoolResetter { + public: + explicit BoolResetter(bool* value) : value_(value) {} + ~BoolResetter() { *value_ = false; } + + private: + bool* value_; +}; + +TEST(ActionTemplateTest, WorksForIntegralTemplateParams) { + const Action<void(int*, BoolResetter*)> a = MyDeleteArg<1>(); + int n = 0; + bool b = true; + auto* resetter = new BoolResetter(&b); + a.Perform(std::make_tuple(&n, resetter)); + EXPECT_FALSE(b); // Verifies that resetter is deleted. +} + +// Tests that ACTION_TEMPLATES works for template template parameters. +ACTION_TEMPLATE(ReturnSmartPointer, + HAS_1_TEMPLATE_PARAMS(template <typename Pointee> class, + Pointer), + AND_1_VALUE_PARAMS(pointee)) { + return Pointer<pointee_type>(new pointee_type(pointee)); +} + +TEST(ActionTemplateTest, WorksForTemplateTemplateParameters) { + const Action<std::shared_ptr<int>()> a = + ReturnSmartPointer<std::shared_ptr>(42); + std::shared_ptr<int> p = a.Perform(std::make_tuple()); + EXPECT_EQ(42, *p); +} + +// Tests that ACTION_TEMPLATE works for 10 template parameters. +template <typename T1, typename T2, typename T3, int k4, bool k5, + unsigned int k6, typename T7, typename T8, typename T9> +struct GiantTemplate { + public: + explicit GiantTemplate(int a_value) : value(a_value) {} + int value; +}; + +ACTION_TEMPLATE(ReturnGiant, + HAS_10_TEMPLATE_PARAMS(typename, T1, typename, T2, typename, T3, + int, k4, bool, k5, unsigned int, k6, + class, T7, class, T8, class, T9, + template <typename T> class, T10), + AND_1_VALUE_PARAMS(value)) { + return GiantTemplate<T10<T1>, T2, T3, k4, k5, k6, T7, T8, T9>(value); +} + +TEST(ActionTemplateTest, WorksFor10TemplateParameters) { + using Giant = GiantTemplate<std::shared_ptr<int>, bool, double, 5, true, 6, + char, unsigned, int>; + const Action<Giant()> a = ReturnGiant<int, bool, double, 5, true, 6, char, + unsigned, int, std::shared_ptr>(42); + Giant giant = a.Perform(std::make_tuple()); + EXPECT_EQ(42, giant.value); +} + +// Tests that ACTION_TEMPLATE works for 10 value parameters. +ACTION_TEMPLATE(ReturnSum, HAS_1_TEMPLATE_PARAMS(typename, Number), + AND_10_VALUE_PARAMS(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10)) { + return static_cast<Number>(v1) + v2 + v3 + v4 + v5 + v6 + v7 + v8 + v9 + v10; +} + +TEST(ActionTemplateTest, WorksFor10ValueParameters) { + const Action<int()> a = ReturnSum<int>(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); + EXPECT_EQ(55, a.Perform(std::make_tuple())); +} + +// Tests that ACTION_TEMPLATE and ACTION/ACTION_P* can be overloaded +// on the number of value parameters. + +ACTION(ReturnSum) { return 0; } + +ACTION_P(ReturnSum, x) { return x; } + +ACTION_TEMPLATE(ReturnSum, HAS_1_TEMPLATE_PARAMS(typename, Number), + AND_2_VALUE_PARAMS(v1, v2)) { + return static_cast<Number>(v1) + v2; +} + +ACTION_TEMPLATE(ReturnSum, HAS_1_TEMPLATE_PARAMS(typename, Number), + AND_3_VALUE_PARAMS(v1, v2, v3)) { + return static_cast<Number>(v1) + v2 + v3; +} + +ACTION_TEMPLATE(ReturnSum, HAS_2_TEMPLATE_PARAMS(typename, Number, int, k), + AND_4_VALUE_PARAMS(v1, v2, v3, v4)) { + return static_cast<Number>(v1) + v2 + v3 + v4 + k; +} + +TEST(ActionTemplateTest, CanBeOverloadedOnNumberOfValueParameters) { + const Action<int()> a0 = ReturnSum(); + const Action<int()> a1 = ReturnSum(1); + const Action<int()> a2 = ReturnSum<int>(1, 2); + const Action<int()> a3 = ReturnSum<int>(1, 2, 3); + const Action<int()> a4 = ReturnSum<int, 10000>(2000, 300, 40, 5); + EXPECT_EQ(0, a0.Perform(std::make_tuple())); + EXPECT_EQ(1, a1.Perform(std::make_tuple())); + EXPECT_EQ(3, a2.Perform(std::make_tuple())); + EXPECT_EQ(6, a3.Perform(std::make_tuple())); + EXPECT_EQ(12345, a4.Perform(std::make_tuple())); +} + +} // namespace gmock_more_actions_test +} // namespace testing + +GTEST_DISABLE_MSC_WARNINGS_POP_() // 4100 4503 +GTEST_DISABLE_MSC_WARNINGS_POP_() // 4577 |