private void OnGenerateClick(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(rectanglesTextBox.Text))
{
if (int.Parse(rectanglesTextBox.Text) <= 2 || int.Parse(rectanglesTextBox.Text) > 30)
{
Error.ForeColor = Color.Red;
Error.Text = "Please enter numnber of Rectangles between 3 and 30";
this.Invalidate();
}
else
{
Error.Text = "";
Graphics graphics = this.CreateGraphics();
Pen pen = new Pen(Color.Red, 1);
var inputYCoordinates = 350;
var outputYCoordinates = 80;
//Set (0,0) to the bottom of the screen
graphics.ScaleTransform(1.0f, -1.0f);
graphics.TranslateTransform(0, -this.ClientRectangle.Height);
//Generate Input Rectangles
var generatedInputRectangles = _rectanglesBuilder.GenerateInputRectangles(inputYCoordinates, int.Parse(rectanglesTextBox.Text));
_rectanglesBuilder.DrawRectanglesShapes(graphics, pen, generatedInputRectangles);
//Generate Output Rectangles
var generatedOutputRectangles = _rectanglesBuilder.GenerateOutputRectangles(generatedInputRectangles, outputYCoordinates);
_rectanglesBuilder.DrawRectanglesShapes(graphics, pen, generatedOutputRectangles);
}
}
}
public void GivenA_NumberOfRectangles_Which_Is_Less_Than_Three_MustThrowAnException()
{
var rectangleBuilder = new RectanglesBuilder();
var yCoordinates = 80;
var numberOfRectangles = 1;
Assert.Throws <Exception>(() => rectangleBuilder.GenerateInputRectangles(yCoordinates, numberOfRectangles));
}
public void GivenA_NumberOfRectangles_Which_Is_Less_Than_Three_MustThrowAnExceptionMessage()
{
var rectangleBuilder = new RectanglesBuilder();
var yCoordinates = 80;
var numberOfRectangles = 1;
var exception = Assert.Throws <Exception>(() => rectangleBuilder.GenerateInputRectangles(yCoordinates, numberOfRectangles));
Assert.That(exception.Message, Is.EqualTo("Please enter No Of Rectangles between 3 and 30"));
}
public void GivenA_NumberOfRectangles_MustReturnAutoGeneratedRectangles()
{
var rectangleBuilder = new RectanglesBuilder();
var yCoordinates = 80;
var numberOfRectangles = 5;
var results = rectangleBuilder.GenerateInputRectangles(yCoordinates, numberOfRectangles);
Assert.AreEqual(results.Count, 5);
}
public void Given_AListOfGeneratedInputRectangles_MustReturnAListOfOutputRectangles()
{
var rectangleBuilder = new RectanglesBuilder();
var yCoordinates = 80;
var numberOfRectangles = 5;
var generatedRectanglesInputList = rectangleBuilder.GenerateInputRectangles(yCoordinates, numberOfRectangles);
var results = rectangleBuilder.GenerateOutputRectangles(generatedRectanglesInputList, yCoordinates);
Assert.AreEqual(numberOfRectangles, results.Count);
}
