java - Mockito verify() 失败，返回 "too many actual invocations"

Question

我有一个相当复杂的测试用例，我正在尝试将以下 verify() 添加到:

verify(userService).getUserById(anyLong()).setPasswordChangeRequired(eq(Boolean.TRUE));

失败并出现以下错误:

org.mockito.exceptions.verification.TooManyActualInvocations: 
userService.getUserById(<any>);
Wanted 1 time:
-> at     test.controllers.AuthenticationControllerMockTest.testLookupsExceeded(AuthenticationControllerMockTest.java:404)
But was 4 times. Undesired invocation:

所以我改成了这样:

verify(userService, atLeastOnce()).getUserById(anyLong()).setPasswordChangeRequired(eq(Boolean.TRUE));

现在它失败了:

java.lang.NullPointerException
    at test.controllers.AuthenticationControllerMockTest.testLookupsExceeded(AuthenticationControllerMockTest.java:404)

因为这是返回 null:

verify(userService, atLeastOnce()).getUserById(anyLong())

这似乎令人费解 - 如果我使用默认值(仅一次调用)，它会失败，因为它被多次调用，但如果我告诉它多次调用没问题，它会失败，因为它找不到任何调用!

有人可以帮忙吗？

Answer 1

看起来你们都想模拟调用 userService.getUserById() 时发生的情况，并且还要验证是否对返回的对象调用了 setPasswordChangeRequired(true) .

您可以通过以下方式完成此操作:

UserService userService = mock(UserService.class);
User user = mock(User.class);
when(userService.getUserById(anyLong())).thenReturn(user);

...

// invoke the method being tested

...

verify(user).setPasswordChangeRequired(true);