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EasingTests.cs
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using System;
using NUnit.Framework;
namespace Xamarin.Forms.Core.UnitTests
{
[TestFixture]
public class EasingTests : BaseTestFixture
{
[Test]
public void Linear([Range(0, 10)] double input)
{
Assert.AreEqual(input, Easing.Linear.Ease(input));
}
[Test]
public void AllRunFromZeroToOne([Values(0.0, 1.0)] double val)
{
const double epsilon = 0.001;
Assert.True(Math.Abs(val - Easing.Linear.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.BounceIn.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.BounceOut.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.CubicIn.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.CubicInOut.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.CubicOut.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.SinIn.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.SinInOut.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.SinOut.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.SpringIn.Ease(val)) < epsilon);
Assert.True(Math.Abs(val - Easing.SpringOut.Ease(val)) < epsilon);
}
[Test]
public void TestEasingTypeConverter()
{
var converter = new EasingTypeConverter();
Assert.True(converter.CanConvertFrom(typeof(string)));
Assert.Null(converter.ConvertFromInvariantString(null));
Assert.Null(converter.ConvertFromInvariantString(string.Empty));
Assert.AreEqual(Easing.Linear, converter.ConvertFromInvariantString("Linear"));
Assert.AreEqual(Easing.Linear, converter.ConvertFromInvariantString("linear"));
Assert.AreEqual(Easing.Linear, converter.ConvertFromInvariantString("Easing.Linear"));
Assert.AreEqual(Easing.SinOut, converter.ConvertFromInvariantString("SinOut"));
Assert.AreEqual(Easing.SinOut, converter.ConvertFromInvariantString("sinout"));
Assert.AreEqual(Easing.SinOut, converter.ConvertFromInvariantString("Easing.SinOut"));
Assert.AreEqual(Easing.SinIn, converter.ConvertFromInvariantString("SinIn"));
Assert.AreEqual(Easing.SinIn, converter.ConvertFromInvariantString("sinin"));
Assert.AreEqual(Easing.SinIn, converter.ConvertFromInvariantString("Easing.SinIn"));
Assert.AreEqual(Easing.SinInOut, converter.ConvertFromInvariantString("SinInOut"));
Assert.AreEqual(Easing.SinInOut, converter.ConvertFromInvariantString("sininout"));
Assert.AreEqual(Easing.SinInOut, converter.ConvertFromInvariantString("Easing.SinInOut"));
Assert.AreEqual(Easing.CubicOut, converter.ConvertFromInvariantString("CubicOut"));
Assert.AreEqual(Easing.CubicOut, converter.ConvertFromInvariantString("cubicout"));
Assert.AreEqual(Easing.CubicOut, converter.ConvertFromInvariantString("Easing.CubicOut"));
Assert.AreEqual(Easing.CubicIn, converter.ConvertFromInvariantString("CubicIn"));
Assert.AreEqual(Easing.CubicIn, converter.ConvertFromInvariantString("cubicin"));
Assert.AreEqual(Easing.CubicIn, converter.ConvertFromInvariantString("Easing.CubicIn"));
Assert.AreEqual(Easing.CubicInOut, converter.ConvertFromInvariantString("CubicInOut"));
Assert.AreEqual(Easing.CubicInOut, converter.ConvertFromInvariantString("cubicinout"));
Assert.AreEqual(Easing.CubicInOut, converter.ConvertFromInvariantString("Easing.CubicInOut"));
Assert.AreEqual(Easing.BounceOut, converter.ConvertFromInvariantString("BounceOut"));
Assert.AreEqual(Easing.BounceOut, converter.ConvertFromInvariantString("bounceout"));
Assert.AreEqual(Easing.BounceOut, converter.ConvertFromInvariantString("Easing.BounceOut"));
Assert.AreEqual(Easing.BounceIn, converter.ConvertFromInvariantString("BounceIn"));
Assert.AreEqual(Easing.BounceIn, converter.ConvertFromInvariantString("bouncein"));
Assert.AreEqual(Easing.BounceIn, converter.ConvertFromInvariantString("Easing.BounceIn"));
Assert.AreEqual(Easing.SpringOut, converter.ConvertFromInvariantString("SpringOut"));
Assert.AreEqual(Easing.SpringOut, converter.ConvertFromInvariantString("springout"));
Assert.AreEqual(Easing.SpringOut, converter.ConvertFromInvariantString("Easing.SpringOut"));
Assert.AreEqual(Easing.SpringIn, converter.ConvertFromInvariantString("SpringIn"));
Assert.AreEqual(Easing.SpringIn, converter.ConvertFromInvariantString("springin"));
Assert.AreEqual(Easing.SpringIn, converter.ConvertFromInvariantString("Easing.SpringIn"));
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("WrongEasingName"));
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("Easing.Linear.SinInOut"));
}
}
}