public void CutsGivenTextToClipboard()
{
// Arrange
var clipboard = new Clipboard();
var textArea = new TextArea();
var textEditor = new TextEditorApp(clipboard, textArea);
Command cutCommand = new CutCommand(textArea, clipboard);
// Act
textEditor.ExecuteCommand(cutCommand);
// Assert
Assert.Equal("Hello", textEditor.ClipboardValue());
}
public void PastesGivenTextFromClipboardToTextEditor()
{
// Arrange
var clipboard = new Clipboard();
var textArea = new TextArea();
var textEditor = new TextEditorApp(clipboard, textArea);
Command cutCommand = new CutCommand(textArea, clipboard);
textEditor.ExecuteCommand(cutCommand);
Command pasteCommand = new PasteCommand(textArea, clipboard);
// Act
textEditor.ExecuteCommand(pasteCommand);
// Assert
Assert.Equal(" World!Hello", textArea.Value());
}
public void UndoChanges()
{
// Arrange
var clipboard = new Clipboard();
var textArea = new TextArea();
var textEditor = new TextEditorApp(clipboard, textArea);
// (Cut the 'Hello')
Command cutCommand = new CutCommand(textArea, clipboard);
textEditor.ExecuteCommand(cutCommand);
Assert.Equal(" World!", textArea.Value());
Command undoCommand = new UndoCommand(textArea, clipboard, textEditor);
// Act
textEditor.ExecuteCommand(undoCommand);
// Assert
Assert.Equal("Hello World!", textArea.Value());
}
public void MultipleCommandExecution()
{
// Arrange
var clipboard = new Clipboard();
var textArea = new TextArea();
var textEditor = new TextEditorApp(clipboard, textArea);
// (Cut the 'Hello')
Command cutCommand = new CutCommand(textArea, clipboard);
textEditor.ExecuteCommand(cutCommand);
Assert.Equal(" World!", textArea.Value());
Assert.Equal("Hello", clipboard.value);
// (Copy the selected text; ' Worl')
Command copyCommand = new CopyCommand(textArea, clipboard);
textEditor.ExecuteCommand(copyCommand);
Assert.Equal(" World!", textArea.Value());
Assert.Equal(" Worl", clipboard.value);
// (Paste the ' Worl')
Command pasteCommand = new PasteCommand(textArea, clipboard);
textEditor.ExecuteCommand(pasteCommand);
Assert.Equal(" World! Worl", textArea.Value());
// Act
Command undoCommand = new UndoCommand(textArea, clipboard, textEditor);
textEditor.ExecuteCommand(undoCommand);
// Assert
Assert.Equal(" World!", textArea.Value());
}