using System; using NUnit.Framework; using NUnit.Framework.Constraints; namespace Xamarin.Forms.Core.UnitTests { [TestFixture] public class AbsoluteLayoutTests : BaseTestFixture { [Test] public void Constructor () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; Assert.That (abs.Children, Is.Empty); var sizeReq = abs.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity); Assert.AreEqual (Size.Zero, sizeReq.Request); Assert.AreEqual (Size.Zero, sizeReq.Minimum); } [Test] public void AbsolutePositionAndSize () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View {IsPlatformEnabled = true}; abs.Children.Add (child, new Rectangle (10, 20, 30, 40)); abs.Layout (new Rectangle (0, 0, 100, 100)); Assert.AreEqual (new Rectangle (10, 20, 30, 40), child.Bounds); } [Test] public void AbsolutePositionRelativeSize () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View {IsPlatformEnabled = true}; abs.Children.Add (child, new Rectangle (10, 20, 0.4, 0.5), AbsoluteLayoutFlags.SizeProportional); abs.Layout (new Rectangle (0, 0, 100, 100)); Assert.That (child.X, Is.EqualTo (10)); Assert.That (child.Y, Is.EqualTo (20)); Assert.That (child.Width, Is.EqualTo (40).Within (0.0001)); Assert.That (child.Height, Is.EqualTo (50).Within (0.0001)); } [TestCase (30, 40, 0.2, 0.3)] [TestCase (35, 45, 0.5, 0.5)] [TestCase (35, 45, 0, 0)] [TestCase (35, 45, 1, 1)] public void RelativePositionAbsoluteSize (double width, double height, double relX, double relY) { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View {IsPlatformEnabled = true}; abs.Children.Add (child, new Rectangle (relX, relY, width, height), AbsoluteLayoutFlags.PositionProportional); abs.Layout (new Rectangle (0, 0, 100, 100)); double expectedX = Math.Round ((100 - width) * relX); double expectedY = Math.Round ((100 - height) * relY); Assert.That (child.X, Is.EqualTo (expectedX).Within (0.0001)); Assert.That (child.Y, Is.EqualTo (expectedY).Within (0.0001)); Assert.That (child.Width, Is.EqualTo (width)); Assert.That (child.Height, Is.EqualTo (height)); } [Test] public void RelativePositionRelativeSize ([Values (0.0, 0.2, 0.5, 1.0)] double relX, [Values (0.0, 0.2, 0.5, 1.0)] double relY, [Values (0.0, 0.2, 0.5, 1.0)] double relHeight, [Values (0.0, 0.2, 0.5, 1.0)] double relWidth) { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View { IsPlatformEnabled = true }; abs.Children.Add (child, new Rectangle(relX, relY, relWidth, relHeight), AbsoluteLayoutFlags.All); abs.Layout (new Rectangle(0, 0, 100, 100)); double expectedWidth = Math.Round (100 * relWidth); double expectedHeight = Math.Round (100 * relHeight); double expectedX = Math.Round ((100 - expectedWidth) * relX); double expectedY = Math.Round ((100 - expectedHeight) * relY); Assert.That (child.X, Is.EqualTo (expectedX).Within (0.0001)); Assert.That (child.Y, Is.EqualTo (expectedY).Within (0.0001)); Assert.That (child.Width, Is.EqualTo (expectedWidth).Within (0.0001)); Assert.That (child.Height, Is.EqualTo (expectedHeight).Within (0.0001)); } [Test] public void SizeRequestWithNormalChild () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View (); // ChildSizeReq == 100x20 abs.Children.Add (child, new Rectangle (10, 20, 30, 40)); var sizeReq = abs.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity); Assert.AreEqual (new Size (40, 60), sizeReq.Request); Assert.AreEqual (new Size (40, 60), sizeReq.Minimum); } [Test] public void SizeRequestWithRelativePositionChild () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View (); // ChildSizeReq == 100x20 abs.Children.Add (child, new Rectangle(0.5, 0.5, 30, 40), AbsoluteLayoutFlags.PositionProportional); var sizeReq = abs.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity); Assert.AreEqual (new Size (30, 40), sizeReq.Request); Assert.AreEqual (new Size (30, 40), sizeReq.Minimum); } [Test] public void SizeRequestWithRelativeChild () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View { Platform = new UnitPlatform (), IsPlatformEnabled = true }; // ChildSizeReq == 100x20 abs.Children.Add (child, new Rectangle(0.5, 0.5, 0.5, 0.5), AbsoluteLayoutFlags.All); var sizeReq = abs.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity); Assert.AreEqual (new Size (200, 40), sizeReq.Request); Assert.AreEqual (new Size (0, 0), sizeReq.Minimum); } [Test] public void SizeRequestWithRelativeSizeChild () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View { Platform = new UnitPlatform (), IsPlatformEnabled = true }; // ChildSizeReq == 100x20 abs.Children.Add (child, new Rectangle(10, 20, 0.5, 0.5), AbsoluteLayoutFlags.SizeProportional); var sizeReq = abs.GetSizeRequest (double.PositiveInfinity, double.PositiveInfinity); Assert.AreEqual (new Size (210, 60), sizeReq.Request); Assert.AreEqual (new Size (10, 20), sizeReq.Minimum); } [Test] public void MeasureInvalidatedFiresWhenFlagsChanged () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View { Platform = new UnitPlatform (), IsPlatformEnabled = true }; abs.Children.Add (child, new Rectangle (1, 1, 100, 100)); bool fired = false; abs.MeasureInvalidated += (sender, args) => fired = true; AbsoluteLayout.SetLayoutFlags (child, AbsoluteLayoutFlags.PositionProportional); Assert.True (fired); } [Test] public void MeasureInvalidatedFiresWhenBoundsChanged () { var abs = new AbsoluteLayout { Platform = new UnitPlatform (), IsPlatformEnabled = true }; var child = new View { Platform = new UnitPlatform (), IsPlatformEnabled = true }; abs.Children.Add (child, new Rectangle (1, 1, 100, 100)); bool fired = false; abs.MeasureInvalidated += (sender, args) => fired = true; AbsoluteLayout.SetLayoutBounds (child, new Rectangle (2, 2, 200, 200)); Assert.True (fired); } [Test] public void TestBoundsTypeConverter () { var converter = new BoundsTypeConverter (); Assert.IsTrue (converter.CanConvertFrom (typeof(string))); Assert.AreEqual (new Rectangle (3, 4, AbsoluteLayout.AutoSize, AbsoluteLayout.AutoSize), converter.ConvertFromInvariantString ("3, 4")); Assert.AreEqual (new Rectangle (3, 4, 20, 30), converter.ConvertFromInvariantString ("3, 4, 20, 30")); Assert.AreEqual (new Rectangle (3, 4, AbsoluteLayout.AutoSize, AbsoluteLayout.AutoSize), converter.ConvertFromInvariantString ("3, 4, AutoSize, AutoSize")); Assert.AreEqual (new Rectangle (3, 4, AbsoluteLayout.AutoSize, 30), converter.ConvertFromInvariantString ("3, 4, AutoSize, 30")); Assert.AreEqual (new Rectangle (3, 4, 20, AbsoluteLayout.AutoSize), converter.ConvertFromInvariantString ("3, 4, 20, AutoSize")); } [Test] public void TurkeyTestBoundsTypeConverter () { var converter = new BoundsTypeConverter (); var autoSize = "AutoSize"; Assert.AreEqual (new Rectangle (3.3, 4.4, AbsoluteLayout.AutoSize, AbsoluteLayout.AutoSize), converter.ConvertFromInvariantString ("3.3, 4.4, " + autoSize + ", AutoSize")); Assert.AreEqual (new Rectangle (3.3, 4.4, 5.5, 6.6), converter.ConvertFromInvariantString ("3.3, 4.4, 5.5, 6.6")); } } }