Mockito

Question

为什么 Mockito 不支持 thenReturn 方法中的集合？

我要

// mockObject.someMethod() returns an instance of "Something".
// Want to achieve that call mockObject.someMethod the first time returns Something_1, call mockObject.someMethod the second time returns Something_2, call mockObject.someMethod the third time returns Something_3, ...
List<Something> expectedValues = ...;
when(mockObject.someMethod()).thenReturn(expectedValues);

因为 expectedValues 的计数是任意的。

Answer 1

方法 thenReturn 支持可变参数但不支持集合：

Mockito.when(mockObject.someMethod()).thenReturn(something1, something2, ...);

OR

Mockito.when(mockObject.someMethod()).thenReturn(something, arrayOfSomething);

另一种方法是链接 thenReturn 调用：

Mockito.when(mockObject.someMethod()).thenReturn(something1).thenReturn(something2);

return something1 第一次调用 mockObject.someMethod() 和 something2 第二次调用等等

Mockito - when ... thenReturn 多次通过传递期望值列表

Mockito - when ... thenReturn multiple times by passing a list of expected values

java

powermockito