Mockito:如何验证一个方法只被调用一次，使用精确的参数忽略对其他方法的调用?

2022-01-08 00:00:00 mocking testing unit-testing mockito java

在 Java 中使用 Mockito 如何验证一个方法只被调用了一次，而忽略了对其他方法的调用?

Using Mockito in Java how to verify a method was called only once with exact parameters ignoring calls to other methods?

示例代码:

public class MockitoTest {

    interface Foo {
        void add(String str);
        void clear();
    }


    @Test
    public void testAddWasCalledOnceWith1IgnoringAllOtherInvocations() throws Exception {
        // given
        Foo foo = Mockito.mock(Foo.class);

        // when
        foo.add("1"); // call to verify
        foo.add("2"); // !!! don't allow any other calls to add()
        foo.clear();  // calls to other methods should be ignored

        // then
        Mockito.verify(foo, Mockito.times(1)).add("1");
        // TODO: don't allow all other invocations with add() 
        //       but ignore all other calls (i.e. the call to clear())
    }

}

TODO: 不允许使用 add() 部分的所有其他调用中应该做什么?

What should be done in the TODO: don't allow all other invocations with add() section?

已经尝试失败:

  1. verifyNoMoreInteractions(foo);

不.它不允许调用其他方法，例如 clear().

Nope. It does not allow calls to other methods like clear().

  1. verify(foo, times(0)).add(any());

不.它没有考虑到我们允许一次调用 add("1").

Nope. It does not take into account that we allow one call to add("1").

推荐答案

Mockito.verify(foo, Mockito.times(1)).add("1");
Mockito.verify(foo, Mockito.times(1)).add(Mockito.anyString());

第一个 verify 检查预期的参数化调用，第二个 verify 检查是否只有一次对 add 的调用.

The first verify checks the expected parametrized call and the second verify checks that there was only one call to add at all.

相关文章