Question

如果要提取，运行或断言由方法返回或调用的参数。

这将从第一个和第二个参数中提取参数并返回Ticket对象。

when(mockTicketMaker.getTicket(any(Double.class),any(String.class)))
.thenAnswer(new Answer<String>(){

private int ticketNum=1;

@Override public Ticket answer(InvocationOnMock invocation) throws Throwable {

    Double price=(Double)invocation.getArguments()[0];
    String destination = (String) invocation.getArguments()[1];
    assertEquals(new Double(123.56), price);

  return new Ticket();
}
  }
);

Answer 1

看起来你想对传递给方法的参数断言。 Mockito以the ArgumentCaptor<> class的形式提供了更优雅的解决方案，而不是在答案中使用内联答案和断言。

鉴于

public class TicketMaker {

    public void getTicket(Double arg1, String arg2) {

    }

}

您可以在测试中编写以下内容

@Test
public void captureArguments() {
    TicketMaker mockTicketMaker = Mockito.mock(TicketMaker.class);

    mockTicketMaker.getTicket(23.0d, "something");

    ArgumentCaptor<Double> doubleCaptor = ArgumentCaptor.forClass(Double.class);
    ArgumentCaptor<String> stringCaptor = ArgumentCaptor.forClass(String.class);
    Mockito.verify(mockTicketMaker).getTicket(doubleCaptor.capture(), stringCaptor.capture());

    assertThat(doubleCaptor.getValue()).isEqualTo(23.0d);
    assertThat(stringCaptor.getValue()).isEqualTo("something");
}

Mockito：如何使用thenAnswer调用多个参数

1 个答案: