Gmock

Question

有一个方法只有一个字符串参数virtual void method(const std::string& str) = 0;

在某些情况下，我需要确保没有使用特定参数调用此方法，例如“321”。

如果方法在某处被调用为 ifce->method("123"); 并且在测试中我做 EXPECT_CALL(mock, method("321")).Times(0); 那么测试失败：

Expected arg #0: is equal to "321"
       Actual: "123"
     Expected: to be never called
       Actual: never called - saturated and active
[  FAILED  ] test.invokeMethodWithDiferentParameters (0 ms)

如何正确操作？

Answer 1

要么使用testing::NiceMock，它会忽略所有无趣的调用

NiceMock<MockFoo> mock;
EXPECT_CALL(mock, method("321")).Times(0);

或添加几个期望值

EXPECT_CALL(mock, method(_)).Times(AtLeast(1));
EXPECT_CALL(mock, method("321")).Times(0);

Gmock - 检查是否使用特定参数调用方法

Gmock - Check that a method is not called with a particular argument

unit-testing

googletest