public void TestTreePattern()
{
using (var inputReader = new StreamReader(Console.OpenStandardInput()))
{
using (var consoleWriter = new StreamWriter(Console.OpenStandardOutput()))
{
consoleWriter.AutoFlush = true;
Console.SetOut(consoleWriter);
Console.SetIn(inputReader);
IInputHandler inputHandler = new InputHandler();
string inputTest = null;
Assert.AreEqual(inputHandler.IsInputValid(inputTest), false);
var boundaries = new Rectangle(0, 0, Console.WindowWidth, Console.WindowHeight);
var shapeTemplate = new TreeTemplate('*', boundaries);
// Point is to test algorithm, so avoid using another algorithm to test with.
var shape = shapeTemplate.Print(1);
String checkString = " *\n";
Assert.AreEqual(shape, checkString);
shape = shapeTemplate.Print(2);
checkString = " *\n";
checkString += " ***\n";
Assert.AreEqual(shape, checkString);
shape = shapeTemplate.Print(5);
checkString = " *\n";
checkString += " ***\n";
checkString += " *****\n";
checkString += " *******\n";
checkString += " *********\n";
Assert.AreEqual(shape, checkString);
shape = shapeTemplate.Print(10);
checkString = " *\n";
checkString += " ***\n";
checkString += " *****\n";
checkString += " *******\n";
checkString += " *********\n";
checkString += " ***********\n";
checkString += " *************\n";
checkString += " ***************\n";
checkString += " *****************\n";
checkString += " *******************\n";
Assert.AreEqual(shape, checkString);
// Check the truncation message is displayed.
shape = shapeTemplate.Print(100000);
Assert.AreNotEqual(shape.IndexOf("The rest of this shape is too large to display properly."), 0);
}
}
}
public static void PrintShape(TextWriter consoleWriter, int height)
{
// Handle boundaries as close to print as possible to detect changes in console size.
var boundaries = new Rectangle(0, 0, Console.WindowWidth, Console.WindowHeight);
var shapeTemplate = new TreeTemplate('*', boundaries);
consoleWriter.Write(shapeTemplate.Print(height));
}