小编Miy*_*ira的帖子

在MainWindow.xaml中有下面的xaml:

<Window x:Class="TestDependency.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525"
        DataContext="{Binding RelativeSource={RelativeSource Self}}">
    <Grid>
    <Grid.RowDefinitions>
      <RowDefinition></RowDefinition>
      <RowDefinition></RowDefinition>
      <RowDefinition></RowDefinition>
    </Grid.RowDefinitions>
    <Label Name="someLabel" Grid.Row="0"  Content="{Binding Path=LabelText}"></Label>
    <Button Grid.Row="2"  Click="Button_Click">Change</Button>
  </Grid>
</Window>

以下是MainWindow.xaml.cs中的代码:

public static readonly DependencyProperty LabelTextProperty = DependencyProperty.Register("LabelText", typeof(String), typeof(MainWindow));

public int counter = 0;

public String LabelText
{
  get
  {
    return (String)GetValue(LabelTextProperty);
  }

  set
  {
    SetValue(LabelTextProperty, value);
  }
}

private void Button_Click(object sender, RoutedEventArgs e)
{
  LabelText = "Counter " + counter++;
}

我原以为默认DataContext是背后的代码.但是我被迫指定了DataContext.哪个DataContext是默认值？ Null …

我有下面的界面

public interface Interface1 {
    Object Execute(String commandToExecute) throws Exception;
}

然后，我尝试进行模拟，以便可以测试将其调用的类的行为：

Interface1 interfaceMocked = mock(Interface1.class);
when(interfaceMocked.Execute(anyString())).thenThrow(new Exception());
Interface2 objectToTest = new ClassOfInterface2(interfaceMocked);
retrievePrintersMetaData.Retrieve();

但是编译器告诉我，有一个未处理的异常。Retrieve方法的定义是：

public List<SomeClass> Retrieve() {
    try {
        interface1Object.Execute("");
    }
    catch (Exception exception) {
        return new ArrayList<SomeClass>();
    }
}

Mockito文档仅显示RuntimeException的使用，而我在StackOverflow上也没有看到类似的东西。我正在使用Java 1.7u25和Mockito 1.9.5