在跟踪带有EXPECT_CALL语句的ON_CALL语句时,有没有人见过在gmock中看到奇怪的行为?对我来说,以下代码中的EXPECT_CALL语句不起作用(它实际上并不强制执行Times部分):
ON_CALL(myMockObject, myMockMethod()).WillByDefault(Return("hello mock")));
EXPECT_CALL(myMockObject, myMockMethod()).Times(99999);
myMockObject.myMockMethod();
我尝试过的其他解决方案:
从超类中重写myMockMethod并让它只返回一个字符串文字。这个问题是我无法确定以后调用它的次数。
跳过ON_CALL部分以支持这样的事情:
EXPECT_CALL(myMockObject, myMockMethod())
.Times(1)
.WillRepeatedly(Return("hello mock"));
这会导致编译错误。
另外值得注意的是,我在这个例子中使用的字符串文字在现实中是自定义的,而gmock将无法提供默认值(例如bool)。
答案 0 :(得分:2)
您的原始代码中还有其他错误,而您的问题中没有提到。如果您构建一个最小的自包含示例,问题中提供的代码就会按预期运行。
例如,以下代码:
#include <string>
#include "gmock/gmock.h"
using ::testing::Return;
struct MyClass {
virtual ~MyClass() {}
virtual std::string myMockMethod() = 0;
};
struct MyMockClass : MyClass {
MOCK_METHOD0(myMockMethod, std::string());
};
TEST(MyClass, Fails) {
MyMockClass myMockObject;
ON_CALL(myMockObject, myMockMethod()).WillByDefault(Return("hello mock"));
EXPECT_CALL(myMockObject, myMockMethod()).Times(99999);
myMockObject.myMockMethod();
}
TEST(MyClass, Passes) {
MyMockClass myMockObject;
EXPECT_CALL(myMockObject, myMockMethod()).Times(1).WillRepeatedly(Return("hello mock"));
myMockObject.myMockMethod();
}
int main(int argc, char **argv) {
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
产生以下(预期)输出:
[==========] Running 2 tests from 1 test case. [----------] Global test environment set-up. [==========] 2 tests from MyClass [ RUN ] MyClass.Fails ..\src\main.cc(18): error: Actual function call count doesn't match EXPECT_CALL(myMockObject, myMockMethod())... Expected: to be called 99999 times Actual: called once - unsatisfied and active [ FAILED ] MyClass.Fails (0 ms) [ RUN ] MyClass.Passes [ OK ] MyClass.Passes (0 ms) [----------] 2 tests from MyClass (2 ms total) [----------] Global test environment tear-down [==========] 2 tests from 1 test case ran. (2 ms total) [ PASSED ] 1 test. [ FAILED ] 1 test, listed below: [ FAILED ] MyClass.Fails 1 FAILED TEST
如果您希望将模拟对象保存在测试夹具中,您可以执行以下操作:
class MyClassTest : public testing::Test {
protected:
MyMockClass myMockObject_;
};
TEST_F(MyClassTest, Fails) {
ON_CALL(myMockObject_, myMockMethod()).WillByDefault(Return("hello mock"));
EXPECT_CALL(myMockObject_, myMockMethod()).Times(99999);
myMockObject_.myMockMethod();
}
答案 1 :(得分:0)
Mock::VerifyAndClearExpectations(&myMockObject);
这就是诀窍。我仍然不确定在幕后如何管理期望,但这让我工作。
但是,对此的任何进一步解释都将非常感激。