static void Main(string[] args)
{
ICanvas canvas = null;
ICommand command;
while (true)
{
Console.Write("enter command : ");
var userInput = Console.ReadLine();
var input = InputParser.ParseInput(userInput);
switch (input.Command.ToUpper())
{
case "C":
command = new CreateCanvas();
ExecuteCommandAndDrawCanvas();
break;
case "L":
command = new CreateLine(canvas);
ExecuteCommandAndDrawCanvas();
break;
case "R":
command = new CreateRectangle(canvas);
ExecuteCommandAndDrawCanvas();
break;
case "B":
command = new FillBucket(canvas);
ExecuteCommandAndDrawCanvas();
break;
case "Q":
command = new ExitCommand();
command.ExecuteCommand(input.Args);
break;
default:
break;
void ExecuteCommandAndDrawCanvas()
{
try
{
canvas = command.ExecuteCommand(input.Args);
Console.WriteLine(canvas.ToString());
//canvas.DrawCanvas();
}
catch (Exception e)
{
Console.WriteLine($"Error: {e.Message}");
}
}
}
}
}
public void CanvasApp_Test()
{
List <string> commands = new List <string>
{
new string("C 20 4"),
new string("L 1 2 6 2"),
new string("L 6 3 6 4"),
new string("R 14 1 18 3"),
new string("B 10 3 o"),
};
ICanvas canvas = null;
ICommand command;
foreach (string com in commands)
{
var input = InputParser.ParseInput(com);
switch (input.Command.ToUpper())
{
case "C":
command = new CreateCanvas();
ExecuteCommandAndDrawCanvas();
break;
case "L":
command = new CreateLine(canvas);
ExecuteCommandAndDrawCanvas();
break;
case "R":
command = new CreateRectangle(canvas);
ExecuteCommandAndDrawCanvas();
break;
case "B":
command = new FillBucket(canvas);
ExecuteCommandAndDrawCanvas();
break;
case "Q":
command = new ExitCommand();
command.ExecuteCommand(input.Args);
break;
default:
break;
void ExecuteCommandAndDrawCanvas()
{
try
{
canvas = command.ExecuteCommand(input.Args);
}
catch (Exception e)
{
Console.WriteLine($"Error: {e.Message}");
}
}
}
}
string[] expected = new string[6]
{
"----------------------",
"|oooooooooooooxxxxxoo|",
"|xxxxxxooooooox xoo|",
"| xoooooooxxxxxoo|",
"| xoooooooooooooo|",
"----------------------"
};
for (int i = 0; i < 6; i++)
{
StringBuilder sb = new StringBuilder();
for (int j = 0; j < 22; j++)
{
sb.Append(canvas.Cells[j, i]);
}
sb.Replace('\0', ' ');
Assert.Equal(expected[i], sb.ToString());
}
}
