Terminal.Gui/UnitTests/WizardTests.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using Terminal.Gui;
using Xunit;
using System.Globalization;
using Xunit.Abstractions;
using NStack;

namespace Terminal.Gui.Views {

	public class WizardTests {
		readonly ITestOutputHelper output;

		public WizardTests (ITestOutputHelper output)
		{
			this.output = output;
		}

		private void RunButtonTestWizard (string title, int width, int height)
		{
			var wizard = new Wizard (title) { Width = width, Height = height };
			Application.End (Application.Begin (wizard));
		}

		[Fact]
		[AutoInitShutdown]
		public void ZeroStepWizard_Shows ()
		{
			var d = ((FakeDriver)Application.Driver);

			var title = "1234";

			int width = 30;
			int height = 6;
			d.SetBufferSize (width, height);

			var btnBackText = "Back";
			var btnBack = $"{d.LeftBracket} {btnBackText} {d.RightBracket}";
			var btnNextText = "Next...";
			var btnNext = $"{d.LeftBracket}{d.LeftDefaultIndicator} {btnNextText} {d.RightDefaultIndicator}{d.RightBracket}";

			var topRow = $"┌ {title} {new String (d.HDLine.ToString () [0], width - title.Length - 4)}┐";
			var row2 = $"{d.VDLine}{new String (' ', width - 2)}{d.VDLine}";
			var row3 = row2;
			var separatorRow = $"{d.VDLine}{new String (d.HDLine.ToString () [0], width - 2)}{d.VDLine}";
			var buttonRow = $"{d.VDLine}{btnBack}{new String (' ', width - btnBack.Length - btnNext.Length - 2)}{btnNext}{d.VDLine}";
			var bottomRow = $"└{new String (d.HDLine.ToString () [0], width - 2)}┘";

			var wizard = new Wizard (title) { Width = width, Height = height };
			Application.End (Application.Begin (wizard));
			GraphViewTests.AssertDriverContentsWithFrameAre ($"{topRow}\n{row2}\n{row3}\n{separatorRow}\n{buttonRow}\n{bottomRow}", output);
		}

		[Fact]
		[AutoInitShutdown]
		// this test is needed because Wizard overrides Dialog's title behavior ("Title - StepTitle")
		public void Setting_Title_Works ()
		{
			var d = ((FakeDriver)Application.Driver);

			var title = "1234";
			var stepTitle = " - ABCD";

			int width = 40;
			int height = 4;
			d.SetBufferSize (width, height);

			var btnBackText = "Back";
			var btnBack = $"{d.LeftBracket} {btnBackText} {d.RightBracket}";
			var btnNextText = "Finish";
			var btnNext = $"{d.LeftBracket}{d.LeftDefaultIndicator} {btnNextText} {d.RightDefaultIndicator}{d.RightBracket}";

			var topRow = $"{d.ULDCorner} {title}{stepTitle} {new String (d.HDLine.ToString () [0], width - title.Length - stepTitle.Length - 4)}{d.URDCorner}";
			var separatorRow = $"{d.VDLine}{new String (d.HLine.ToString () [0], width - 2)}{d.VDLine}";
			var buttonRow = $"{d.VDLine}{new String (' ', width - btnNext.Length - 2)}{btnNext}{d.VDLine}";
			var bottomRow = $"{d.LLDCorner}{new String (d.HDLine.ToString () [0], width - 2)}{d.LRDCorner}";

			var wizard = new Wizard (title) { Width = width, Height = height };
			wizard.AddStep (new Wizard.WizardStep ("ABCD"));

			Application.End (Application.Begin (wizard));
			GraphViewTests.AssertDriverContentsWithFrameAre ($"{topRow}\n{separatorRow}\n{buttonRow}\n{bottomRow}", output);
		}
	}
}