public void TestGetPreviousCommand()
{
var commandHistory = new CommandHistory();
commandHistory.Add("A0001");
string command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0001", command);
command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0001", command);
commandHistory.Add("A0002");
command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0002", command);
command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0001", command);
command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0001", command);
commandHistory.Add("A0003");
command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0003", command);
command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0002", command);
command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0001", command);
command = commandHistory.GetPreviousCommand();
Assert.AreEqual("A0001", command);
}
public void TestEmptyHistoryNavigation()
{
var commandHistory = new CommandHistory();
string command = commandHistory.GetPreviousCommand();
Assert.IsEmpty(command);
command = commandHistory.GetNextCommand();
Assert.IsEmpty(command);
}
/// <summary>
/// Initializes a new instance of the CommandProcessor class.
/// </summary>
/// <param name="commandLineTextBox">
/// Control to input commands.
/// </param>
/// <param name="historyBox">
/// Control for commands and responses history.
/// </param>
/// <param name="communicationHelper">
/// Class that communicates with robot.
/// </param>
/// <param name="commandHistory">
/// Class that containts command history.
/// </param>
public CommandProcessor(
TextBox commandLineTextBox,
HistoryBox historyBox,
ICommunicationHelper communicationHelper,
CommandHistory commandHistory)
{
this.commandLineTextBox = commandLineTextBox;
this.historyBox = historyBox;
this.communicationHelper = communicationHelper;
this.commandHistory = commandHistory;
}