Question

如何为以下代码段编写Nunit测试用例？ CreateFolder()是在所选文件夹下的树视图中创建新文件夹的功能，CanCreateFolder()是检查是否可以创建文件夹的功能。

public ICommand CreateFolderCommand
{
    get
    {
        if (createFolderCommand == null)
        {
            createFolderCommand = new RelayCommand(CreateFolder, CanCreateFolder);
        }
        return createFolderCommand;
    }
}

private bool CanCreateFolder(object parameter)
{
    if (parameter is FolderItem)
    {
        return true;
    }
    return false;
}
#endregion

我应该在以下测试用例中添加哪些内容？

[Test]
public void CreateFolderCommandMainVMTest()
{
    MainVm mainVM = new MainVm();

    RelayCommand command = (RelayCommand)mainVM.CreateFolderCommand;
    bool canCreateFolder = command.CanExecute(mainVM);
    Assert.Equals(canCreateFolder, true);
}

Answer 1

CanExecute正在寻找FolderItem，但在测试中，您将视图模型作为参数传递。您需要使用FolderItem实例测试can执行。

鉴于在示例中没有给出关于该类型的信息，下面假设FolderItem具有默认构造函数。

[Test]
public void CreateFolderCommandMainVMTest() {
    //Arrange
    var mainVM = new MainVm();
    var foldeItem = new FolderItem();
    var command = (RelayCommand)mainVM.CreateFolderCommand;
    var expected = true;

    //Act
    bool canCreateFolder = command.CanExecute(folderItem);

    //Assert
    Assert.Equals(expected, canCreateFolder);
}

上面应该通过OP中提供的示例

如何为以下内容编写nunit测试用例

1 个答案: