在@Before注释方法解决方案期间的Mockito代码

时间:2011-08-24 15:26:05

标签: java junit4 mockito xunit

我是使用Mockito框架(以及行为/测试驱动开发)和使用的新手 帮我编写一些东西;

我正在为xml编写自己的Java库以创建图形内容 我试过首先验证一些行为: (MockitoAnnotations.initMocks(Class))中使用了BaseTestClass

public class GeneralXml extends BaseTestClass {

    private static final String TAG = "General XML";
    @Mock(name="xml") private XmlGraphics mockXML;

    @Before
    public void setUp() throws Exception{ 

        //stub method parseDimension
        when(mockXML.parseDimension(anyString()))
            .thenReturn(500);

        // stub method parsePosition: 500 X 500 X 500 is an
        // arbitrary dimension of window
        when(mockXML.parsePosition(anyString()))
            .thenReturn(
                new Random().nextFloat() * mockXML.parseDimension(Xml.WIDTH),
                new Random().nextFloat() * mockXML.parseDimension(Xml.HEIGHT),
                new Random().nextFloat() * mockXML.parseDimension(Xml.DEPHT));

        // Now Colors must have betwwen 0 and 255
        // (RGB color)
        when(mockXML.parseColorComponent(anyString()))
            .thenReturn(
                new Random().nextInt(256),    
                new Random().nextInt(256),    
                new Random().nextInt(256));    

    }

但我在所有后续验证中都收到错误,例如:

@Test
public void mockPosition() {
    Log.d(TAG, "mock", "x = "+mockXML.parsePosition(Xml.X));
    Log.d(TAG, "mock", "y = "+mockXML.parsePosition(Xml.Y));
    Log.d(TAG, "mock", "z = "+mockXML.parsePosition(Xml.Z));

    verify(mockXML, times(3)).parsePosition(anyString());
}    

我认为我的错误在于:

 when(mockXML.parsePosition(anyString()))    
        .thenReturn(    
            new Random().nextFloat() * mockXML.parseDimension(Xml.WIDTH),
            new Random().nextFloat() * mockXML.parseDimension(Xml.HEIGHT),
            new Random().nextFloat() * mockXML.parseDimension(Xml.DEPHT));

这不是有效的代码吗?或者我误解了什么? 谢谢你的帮助

1 个答案:

答案 0 :(得分:2)

尝试将其添加为setUp()函数的第一行:

    MockitoAnnotations.initMocks(this);