我已经使用 gtest
一段时间了,但最近想尝试一下 gmock
。我正在尝试使用返回值的方法模拟类,但也通过引用在输出参数中返回一些东西。这是我的小代码。
#include <vector>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using namespace ::testing;
class AReal
{
public:
virtual bool foo(std::vector<int>& v) const = 0;
};
class AMock : public AReal
{
public:
MOCK_CONST_METHOD1(foo, bool(std::vector<int>&));
};
class B
{
public:
B(AReal* _a) : a(_a) {}
bool foo(std::vector<int>& v) const { return a->foo(v); }
private:
AReal* a;
};
class FooTest : public Test {};
TEST_F(FooTest,
DummyTestVector) {
AMock a;
B b(&a);
std::vector<int> exp = { 1, 2, 3 };
EXPECT_CALL(a, foo(_))
.Times(1)
.WillOnce(AllOf(SetArgReferee<0>(exp), Return(true)));
std::vector<int> load;
EXPECT_TRUE(a.foo(load));
EXPECT_EQ(exp, load);
}
int main(int argc, char** argv) {
::testing::InitGoogleMock(&argc, argv);
return RUN_ALL_TESTS();
}
但是,这段代码给我这个错误。
$ g++ -Wall -Wextra -std=c++14 -I. -o test test.cpp gmock-gtest-all.cc -lpthread
test.cpp: In member function ‘virtual void FooTest_DummyTestVector_Test::TestBody()’:
test.cpp:40:61: error: no matching function for call to ‘testing::internal::TypedExpectation<bool(std::vector<int>&)>::WillOnce(testing::internal::AllOfResult2<testing::SetArgRefereeActionP<0, std::vector<int> >, testing::internal::ReturnAction<bool> >::type)’
.WillOnce(AllOf(SetArgReferee<0>(exp), Return(true)));
^
In file included from test.cpp:2:0:
gmock/gmock.h:10172:21: note: candidate: testing::internal::TypedExpectation<F>& testing::internal::TypedExpectation<F>::WillOnce(const testing::Action<F>&) [with F = bool(std::vector<int>&)]
TypedExpectation& WillOnce(const Action<F>& action) {
^
gmock/gmock.h:10172:21: note: no known conversion for argument 1 from ‘testing::internal::AllOfResult2<testing::SetArgRefereeActionP<0, std::vector<int> >, testing::internal::ReturnAction<bool> >::type {aka testing::internal::BothOfMatcher<testing::SetArgRefereeActionP<0, std::vector<int> >, testing::internal::ReturnAction<bool> >}’ to ‘const testing::Action<bool(std::vector<int>&)>&’
如果我不使用 AllOf
而是只指定一个操作,SetArgReferee
或 Return
,一切正常。 AllOf
的使用会导致此类错误。我在这里找到了 AllOf
gmock multiple in-out parameters SetArgReferee基本上我的代码与答案相同。
最佳答案
在尝试了整个下午之后,我发现这只是我的愚蠢。我一直以某种方式认为 AllOf == DoAll
。才意识到这一点。
关于googletest - Googlemock - WillOnce 中的多个操作导致构建错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35672214/