gui-cs.Terminal.Gui/UnitTests/ConsoleDrivers/ClipRegionTests.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Xunit;
using Xunit.Abstractions;

// Alias Console to MockConsole so we don't accidentally use Console
using Console = Terminal.Gui.FakeConsole;

namespace Terminal.Gui.DriverTests; 

public class ClipRegionTests {
	readonly ITestOutputHelper output;

	public ClipRegionTests (ITestOutputHelper output)
	{
		ConsoleDriver.RunningUnitTests = true;
		this.output = output;
	}

	[Theory]
	[InlineData (typeof (FakeDriver))]
	[InlineData (typeof (NetDriver))]
	//[InlineData (typeof (ANSIDriver))]
	[InlineData (typeof (WindowsDriver))]
	[InlineData (typeof (CursesDriver))]
	public void IsValidLocation (Type driverType)
	{
		var driver = (ConsoleDriver)Activator.CreateInstance (driverType);
		Application.Init (driver);
		Application.Driver.Rows = 10;
		Application.Driver.Cols = 10;

		// positive
		Assert.True (driver.IsValidLocation (0, 0));
		Assert.True (driver.IsValidLocation (1, 1));
		Assert.True (driver.IsValidLocation (driver.Cols - 1, driver.Rows - 1));
		// negative
		Assert.False (driver.IsValidLocation (-1, 0));
		Assert.False (driver.IsValidLocation (0, -1));
		Assert.False (driver.IsValidLocation (-1, -1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows - 1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows - 1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows));

		// Define a clip rectangle
		driver.Clip = new Rect (5, 5, 5, 5);
		// positive
		Assert.True (driver.IsValidLocation (5, 5));
		Assert.True (driver.IsValidLocation (9, 9));
		// negative
		Assert.False (driver.IsValidLocation (4, 5));
		Assert.False (driver.IsValidLocation (5, 4));
		Assert.False (driver.IsValidLocation (10, 9));
		Assert.False (driver.IsValidLocation (9, 10));
		Assert.False (driver.IsValidLocation (-1, 0));
		Assert.False (driver.IsValidLocation (0, -1));
		Assert.False (driver.IsValidLocation (-1, -1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows - 1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows - 1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows));

		Application.Shutdown ();
	}

	[Theory]
	[InlineData (typeof (FakeDriver))]
	[InlineData (typeof (NetDriver))]
	//[InlineData (typeof (ANSIDriver))]
	[InlineData (typeof (WindowsDriver))]
	[InlineData (typeof (CursesDriver))]
	public void Clip_Set_To_Empty_AllInvalid (Type driverType)
	{
		var driver = (ConsoleDriver)Activator.CreateInstance (driverType);
		Application.Init (driver);

		// Define a clip rectangle
		driver.Clip = Rect.Empty;

		// negative
		Assert.False (driver.IsValidLocation (4, 5));
		Assert.False (driver.IsValidLocation (5, 4));
		Assert.False (driver.IsValidLocation (10, 9));
		Assert.False (driver.IsValidLocation (9, 10));
		Assert.False (driver.IsValidLocation (-1, 0));
		Assert.False (driver.IsValidLocation (0, -1));
		Assert.False (driver.IsValidLocation (-1, -1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows - 1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows - 1));
		Assert.False (driver.IsValidLocation (driver.Cols, driver.Rows));

		Application.Shutdown ();
	}

	[Theory]
	[InlineData (typeof (FakeDriver))]
	[InlineData (typeof (NetDriver))]
	//[InlineData (typeof (ANSIDriver))]
	[InlineData (typeof (WindowsDriver))]
	[InlineData (typeof (CursesDriver))]
	public void AddRune_Is_Clipped (Type driverType)
	{
		var driver = (ConsoleDriver)Activator.CreateInstance (driverType);
		Application.Init (driver);
		Application.Driver.Rows = 25;
		Application.Driver.Cols = 80;

		driver.Move (0, 0);
		driver.AddRune ('x');
		Assert.Equal ((Rune)'x', driver.Contents [0, 0].Rune);

		driver.Move (5, 5);
		driver.AddRune ('x');
		Assert.Equal ((Rune)'x', driver.Contents [5, 5].Rune);

		// Clear the contents
		driver.FillRect (new Rect (0, 0, driver.Rows, driver.Cols), ' ');
		Assert.Equal ((Rune)' ', driver.Contents [0, 0].Rune);

		// Setup the region with a single rectangle, fill screen with 'x'
		driver.Clip = new Rect (5, 5, 5, 5);
		driver.FillRect (new Rect (0, 0, driver.Rows, driver.Cols), 'x');
		Assert.Equal ((Rune)' ', driver.Contents [0, 0].Rune);
		Assert.Equal ((Rune)' ', driver.Contents [4, 9].Rune);
		Assert.Equal ((Rune)'x', driver.Contents [5, 5].Rune);
		Assert.Equal ((Rune)'x', driver.Contents [9, 9].Rune);
		Assert.Equal ((Rune)' ', driver.Contents [10, 10].Rune);

		Application.Shutdown ();
	}
}