2020-07-17 17:44:13 +03:00
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using NUnit.Framework;
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namespace Xamarin.Forms.Core.UnitTests
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{
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public class LinearGradientBrushTests : BaseTestFixture
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{
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[SetUp]
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public override void Setup()
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{
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base.Setup();
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}
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[Test]
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public void TestConstructor()
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{
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LinearGradientBrush linearGradientBrush = new LinearGradientBrush();
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Assert.AreEqual(1.0d, linearGradientBrush.EndPoint.X, "EndPoint.X");
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2020-08-05 00:50:17 +03:00
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Assert.AreEqual(1.0d, linearGradientBrush.EndPoint.Y, "EndPoint.Y");
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2020-07-17 17:44:13 +03:00
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}
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[Test]
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public void TestConstructorUsingGradientStopCollection()
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{
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var gradientStops = new GradientStopCollection
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{
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new GradientStop { Color = Color.Red, Offset = 0.1f },
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new GradientStop { Color = Color.Orange, Offset = 0.8f }
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};
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LinearGradientBrush linearGradientBrush = new LinearGradientBrush(gradientStops, new Point(0, 0), new Point(0, 1));
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Assert.AreNotEqual(0, linearGradientBrush.GradientStops.Count, "GradientStops");
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Assert.AreEqual(0.0d, linearGradientBrush.EndPoint.X, "EndPoint.X");
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Assert.AreEqual(1.0d, linearGradientBrush.EndPoint.Y, "EndPoint.Y");
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}
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[Test]
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public void TestEmptyLinearGradientBrush()
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{
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LinearGradientBrush nullLinearGradientBrush = new LinearGradientBrush();
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Assert.AreEqual(true, nullLinearGradientBrush.IsEmpty, "IsEmpty");
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LinearGradientBrush linearGradientBrush = new LinearGradientBrush
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{
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StartPoint = new Point(0, 0),
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EndPoint = new Point(1, 0),
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GradientStops = new GradientStopCollection
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{
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new GradientStop { Color = Color.Orange, Offset = 0.1f },
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new GradientStop { Color = Color.Red, Offset = 0.8f }
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}
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};
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Assert.AreEqual(false, linearGradientBrush.IsEmpty, "IsEmpty");
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}
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[Test]
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public void TestNullOrEmptyLinearGradientBrush()
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{
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LinearGradientBrush nullLinearGradientBrush = null;
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Assert.AreEqual(true, Brush.IsNullOrEmpty(nullLinearGradientBrush), "IsNullOrEmpty");
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LinearGradientBrush emptyLinearGradientBrush = new LinearGradientBrush();
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Assert.AreEqual(true, Brush.IsNullOrEmpty(emptyLinearGradientBrush), "IsNullOrEmpty");
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LinearGradientBrush linearGradientBrush = new LinearGradientBrush
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{
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StartPoint = new Point(0, 0),
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EndPoint = new Point(1, 0),
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GradientStops = new GradientStopCollection
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{
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new GradientStop { Color = Color.Orange, Offset = 0.1f },
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new GradientStop { Color = Color.Red, Offset = 0.8f }
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}
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};
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Assert.AreEqual(false, Brush.IsNullOrEmpty(linearGradientBrush), "IsNullOrEmpty");
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}
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[Test]
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public void TestLinearGradientBrushPoints()
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{
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LinearGradientBrush linearGradientBrush = new LinearGradientBrush
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{
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StartPoint = new Point(0, 0),
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EndPoint = new Point(1, 0)
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};
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Assert.AreEqual(0, linearGradientBrush.StartPoint.X);
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Assert.AreEqual(0, linearGradientBrush.StartPoint.Y);
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Assert.AreEqual(1, linearGradientBrush.EndPoint.X);
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Assert.AreEqual(0, linearGradientBrush.EndPoint.Y);
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}
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[Test]
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public void TestLinearGradientBrushOnlyOneGradientStop()
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{
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LinearGradientBrush linearGradientBrush = new LinearGradientBrush
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{
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GradientStops = new GradientStopCollection
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{
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new GradientStop { Color = Color.Red, }
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},
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StartPoint = new Point(0, 0),
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EndPoint = new Point(1, 0)
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};
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Assert.IsNotNull(linearGradientBrush);
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}
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[Test]
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public void TestLinearGradientBrushGradientStops()
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{
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LinearGradientBrush linearGradientBrush = new LinearGradientBrush
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{
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GradientStops = new GradientStopCollection
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{
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new GradientStop { Color = Color.Red, Offset = 0.1f },
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new GradientStop { Color = Color.Blue, Offset = 1.0f }
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},
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StartPoint = new Point(0, 0),
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EndPoint = new Point(1, 0)
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};
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Assert.AreEqual(2, linearGradientBrush.GradientStops.Count);
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}
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}
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}
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