Question

我目前正在为我的selenium项目编写单元测试，我正在使用Mockito来模拟我的物品和驱动程序。

我遇到的问题是我有一个功能，用于更改单选按钮列表中的单选选项，但我遇到了问题。代码如下所示：

@Test
public void testChangeRadioState(){
    WebElement mockElement           = mock(WebElement.class);
    List<WebElement> mockElementList = new ArrayList<>();
    WebElement selectedMockElement   = mock(WebElement.class);


    /*The when statements*/
    when(selectedMockElement.isSelected()).thenReturn(true);
    doReturn(when(mockElement.isSelected()).thenReturn(true)).when(mockElement).click();
    doReturn(when(selectedMockElement.isSelected()).thenReturn(false)).when(mockElement).click();

   /*Add a selected and a none selected element to the list*/
    mockElementList.add(mockElement);
    mockElementList.add(selectedMockElement);

    /*The method that is beeing tested*/
    elementSetter.changeRadioState(mockElementList);

    Assert.assertTrue("The radio state was not selected",mockElement.isSelected());
}

我正在尝试做什么？返回部分是告诉元素“mockElement”，当它收到点击时，它应该在isSelected（）调用时始终返回true。但由于Click（）是一个无效函数，它不会让我这样做。有人知道解决这个问题吗？

Answer 1

好的，这是一个单独的主题 - 你正在测试什么，我会嘲笑这么深的东西。

我会像这样重写测试：

@Test
public void testChangeRadioState() {
    WebElement mockElement           = mock(WebElement.class);
    WebElement selectedMockElement   = mock(WebElement.class);
    List<WebElement> mockElementList = new ArrayList<>();

    /*The when statements*/
    when(selectedMockElement.isSelected()).thenReturn(true);
    // By default mockito will return false but maybe I want to highlight 
    // that this is important
    when(mockElement.isSelected()).thenReturn(false);

    /*Add a selected and a none selected element to the list*/
    mockElementList.add(mockElement);
    mockElementList.add(selectedMockElement);

    /*The method that is beeing tested*/
    elementSetter.changeRadioState(mockElementList);

    verify(selectedMockElement).click();
    // according to test method name I would add 
    // one more verification that something was dis-selected
}

我认为另一种具有状态的变体有不必要的模拟：

boolean selected;
@Test
public void testChangeRadioState() {
    selected = false;
    WebElement mockElement           = mock(WebElement.class);
    WebElement selectedMockElement   = mock(WebElement.class);
    List<WebElement> mockElementList = new ArrayList<>();

    /*The when statements*/
    when(selectedMockElement.isSelected()).thenReturn(true);
    doAnswer(new Answer<Object>() {
        public Object answer(InvocationOnMock invocation) {
            selected = true;
            return null;
        }
    }).when(mockElement).click();
    /*Add a selected and a none selected element to the list*/
    mockElementList.add(mockElement);
    mockElementList.add(selectedMockElement);

    /*The method that is beeing tested*/
    elementSetter.changeRadioState(mockElementList);

    Assert.assertTrue("The radio state was not selected", selected);
    // according to test method name I would add 
    // one more verification that something was dis-selected
}

但同样，名字也有误导性。例如，我希望当点击时，有些元素不会被选中。再次询问您正在测试的内容

Mockito剔除虚空方法

1 个答案: