public void ValidateCommand_ValidCommandPassed_ShouldBeValid(string command)
{
var commandParameterValidator = new CommandParameterValidator();
var(isValid, errorMessage) = commandParameterValidator.Validate(command);
Assert.True(isValid);
Assert.Empty(errorMessage);
}
public void ValidateCommand_ShouldReturnValidationMessage()
{
const string command = "asdzxc";
var commandParameterValidator = new CommandParameterValidator();
var(isValid, errorMessage) = commandParameterValidator.Validate(command);
Assert.False(isValid);
Assert.NotEmpty(errorMessage);
}
public void Draw(params string[] parameters)
{
CommandParameterValidator.ValidateParameterCount(4, parameters);
int.TryParse(parameters[0], out var x1);
int.TryParse(parameters[1], out var y1);
int.TryParse(parameters[2], out var x2);
int.TryParse(parameters[3], out var y2);
CommandParameterValidator.ValidateXaxisValueRange(_canvas, x1);
CommandParameterValidator.ValidateYaxisValueRange(_canvas, y1);
CommandParameterValidator.ValidateXaxisValueRange(_canvas, x2);
CommandParameterValidator.ValidateYaxisValueRange(_canvas, y2);
drawLine(x1, y1, x2, y2);
}
