FlexLayoutAlignSelfTests.cs

using NUnit.Framework;

namespace Xamarin.Forms.Core.UnitTests
{
	[TestFixture]
	public class FlexLayoutAlignSelfTest : BaseTestFixture
	{
		[Test]
		public void TestAlignSelfCenter()
		{
			var layout = new FlexLayout {
				IsPlatformEnabled = true,

				Direction = FlexDirection.Column,
			};
			var view0 = new View { IsPlatformEnabled = true, WidthRequest = 10, HeightRequest = 10 };
			FlexLayout.SetAlignSelf(view0, FlexAlignSelf.Center);
			layout.Children.Add(view0);

			layout.Layout(new Rectangle(0, 0, 100, 100));
			Assert.That(layout.Bounds, Is.EqualTo(new Rectangle(0, 0, 100, 100)));
			Assert.That(view0.Bounds, Is.EqualTo(new Rectangle(45, 0, 10, 10)));
		}

		[Test]
		public void TestAlignSelfFlexEnd()
		{
			var layout = new FlexLayout {
				IsPlatformEnabled = true,

				Direction = FlexDirection.Column,
			};
			var view0 = new View { IsPlatformEnabled = true, WidthRequest = 10, HeightRequest = 10 };
			FlexLayout.SetAlignSelf(view0, FlexAlignSelf.End);
			layout.Children.Add(view0);

			layout.Layout(new Rectangle(0, 0, 100, 100));
			Assert.That(layout.Bounds, Is.EqualTo(new Rectangle(0, 0, 100, 100)));
			Assert.That(view0.Bounds, Is.EqualTo(new Rectangle(90, 0, 10, 10)));
		}

		[Test]
		public void TestAlignSelfFlexStart()
		{
			var layout = new FlexLayout {
				IsPlatformEnabled = true,

				Direction = FlexDirection.Column,
			};
			var view0 = new View { IsPlatformEnabled = true, WidthRequest = 10, HeightRequest = 10 };
			FlexLayout.SetAlignSelf(view0, FlexAlignSelf.Start);
			layout.Children.Add(view0);

			layout.Layout(new Rectangle(0, 0, 100, 100));
			Assert.That(layout.Bounds, Is.EqualTo(new Rectangle(0, 0, 100, 100)));
			Assert.That(view0.Bounds, Is.EqualTo(new Rectangle(0, 0, 10, 10)));
		}

		[Test]
		public void TestAlignSelfFlexEndOverrideFlexStart()
		{
			var layout = new FlexLayout {
				IsPlatformEnabled = true,

				AlignItems = FlexAlignItems.Start,
				Direction = FlexDirection.Column,
			};
			var view0 = new View { IsPlatformEnabled = true, WidthRequest = 10, HeightRequest = 10 };
			FlexLayout.SetAlignSelf(view0, FlexAlignSelf.End);
			layout.Children.Add(view0);

			layout.Layout(new Rectangle(0, 0, 100, 100));
			Assert.That(layout.Bounds, Is.EqualTo(new Rectangle(0, 0, 100, 100)));
			Assert.That(view0.Bounds, Is.EqualTo(new Rectangle(90, 0, 10, 10)));
		}
	}
}