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33 lines
1.6 KiB
33 lines
1.6 KiB
// Copyright (c) Six Labors.
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// Licensed under the Apache License, Version 2.0.
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using System.IO;
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using SixLabors.ImageSharp.Formats.Tiff;
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using Xunit;
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namespace SixLabors.ImageSharp.Tests.Formats.Tiff.Formats.Tiff
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{
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[Trait("Category", "Tiff")]
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public class PackBitsTiffCompressionTests
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{
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[Theory]
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[InlineData(new byte[] { }, new byte[] { })]
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[InlineData(new byte[] { 0x00, 0x2A }, new byte[] { 0x2A })] // Read one byte
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[InlineData(new byte[] { 0x01, 0x15, 0x32 }, new byte[] { 0x15, 0x32 })] // Read two bytes
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[InlineData(new byte[] { 0xFF, 0x2A }, new byte[] { 0x2A, 0x2A })] // Repeat two bytes
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[InlineData(new byte[] { 0xFE, 0x2A }, new byte[] { 0x2A, 0x2A, 0x2A })] // Repeat three bytes
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[InlineData(new byte[] { 0x80 }, new byte[] { })] // Read a 'No operation' byte
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[InlineData(new byte[] { 0x01, 0x15, 0x32, 0x80, 0xFF, 0xA2 }, new byte[] { 0x15, 0x32, 0xA2, 0xA2 })] // Read two bytes, nop, repeat two bytes
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[InlineData(new byte[] { 0xFE, 0xAA, 0x02, 0x80, 0x00, 0x2A, 0xFD, 0xAA, 0x03, 0x80, 0x00, 0x2A, 0x22, 0xF7, 0xAA },
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new byte[] { 0xAA, 0xAA, 0xAA, 0x80, 0x00, 0x2A, 0xAA, 0xAA, 0xAA, 0xAA, 0x80, 0x00, 0x2A, 0x22, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA })] // Apple PackBits sample
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public void Decompress_ReadsData(byte[] inputData, byte[] expectedResult)
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{
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Stream stream = new MemoryStream(inputData);
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byte[] buffer = new byte[expectedResult.Length];
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PackBitsTiffCompression.Decompress(stream, inputData.Length, buffer);
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Assert.Equal(expectedResult, buffer);
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}
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}
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}
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