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74 lines
2.5 KiB
74 lines
2.5 KiB
// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using System.Numerics;
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using SixLabors.ImageSharp.PixelFormats;
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using Xunit;
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namespace SixLabors.ImageSharp.Tests.PixelFormats
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{
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public class Bgra4444Tests
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{
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[Fact]
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public void Bgra4444_PackedValue()
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{
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Assert.Equal(520, new Bgra4444(0.1f, -0.3f, 0.5f, -0.7f).PackedValue);
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Assert.Equal(0x0, new Bgra4444(Vector4.Zero).PackedValue);
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Assert.Equal(0xFFFF, new Bgra4444(Vector4.One).PackedValue);
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Assert.Equal(0x0F00, new Bgra4444(Vector4.UnitX).PackedValue);
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Assert.Equal(0x00F0, new Bgra4444(Vector4.UnitY).PackedValue);
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Assert.Equal(0x000F, new Bgra4444(Vector4.UnitZ).PackedValue);
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Assert.Equal(0xF000, new Bgra4444(Vector4.UnitW).PackedValue);
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}
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[Fact]
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public void Bgra4444_ToVector4()
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{
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Assert.Equal(Vector4.One, new Bgra4444(Vector4.One).ToVector4());
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Assert.Equal(Vector4.Zero, new Bgra4444(Vector4.Zero).ToVector4());
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Assert.Equal(Vector4.UnitX, new Bgra4444(Vector4.UnitX).ToVector4());
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Assert.Equal(Vector4.UnitY, new Bgra4444(Vector4.UnitY).ToVector4());
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Assert.Equal(Vector4.UnitZ, new Bgra4444(Vector4.UnitZ).ToVector4());
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Assert.Equal(Vector4.UnitW, new Bgra4444(Vector4.UnitW).ToVector4());
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}
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[Fact]
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public void Bgra4444_ToScaledVector4()
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{
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// arrange
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var bgra = new Bgra4444(Vector4.One);
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// act
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Vector4 actual = bgra.ToScaledVector4();
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// assert
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Assert.Equal(1, actual.X);
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Assert.Equal(1, actual.Y);
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Assert.Equal(1, actual.Z);
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Assert.Equal(1, actual.W);
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}
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[Fact]
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public void Bgra4444_FromScaledVector4()
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{
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// arrange
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Vector4 scaled = new Bgra4444(Vector4.One).ToScaledVector4();
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int expected = 0xFFFF;
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var bgra = default(Bgra4444);
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// act
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bgra.FromScaledVector4(scaled);
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ushort actual = bgra.PackedValue;
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// assert
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Assert.Equal(expected, actual);
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}
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[Fact]
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public void Bgra4444_Clamping()
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{
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Assert.Equal(Vector4.Zero, new Bgra4444(Vector4.One * -1234.0f).ToVector4());
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Assert.Equal(Vector4.One, new Bgra4444(Vector4.One * 1234.0f).ToVector4());
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}
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}
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}
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