Change ICompressor implement Compress for a Stream

This commit is contained in:
Denis-Cosmin Nutiu 2022-04-03 18:12:49 +03:00
parent 2131edb4c8
commit 364c0fda02
6 changed files with 75 additions and 13 deletions

View file

@ -34,22 +34,19 @@ namespace ImageCore.Tests
}
[Fact]
public void TestNullCompressor_Compress()
public void TestLosslessCompressor_Compress_Stream()
{
ICompressor compressor = new NullCompressor();
ICompressor compressor = new LosslessCompressor();
var sourceFileName = Path.Combine(_testsProjectDirectory, "test_pictures/IMG_0138.HEIC");
var destinationFileName = Path.GetTempFileName();
File.Copy(sourceFileName, destinationFileName, true);
compressor.Compress(destinationFileName);
var originalFile = File.Open(sourceFileName, FileMode.Open);
var compressedFile = File.Open(destinationFileName, FileMode.Open);
var destinationFileHandle = File.Open(destinationFileName, FileMode.Open);
var lengthBeforeCompression = destinationFileHandle.Length;
Assert.True(compressedFile.Length == originalFile.Length);
compressor.Compress(destinationFileHandle);
originalFile.Close();
compressedFile.Close();
File.Delete(destinationFileName);
Assert.True(destinationFileHandle.Length < lengthBeforeCompression);
}
}
}

View file

@ -0,0 +1,37 @@
using System;
using System.IO;
using Image.Core;
using Xunit;
namespace ImageCore.Tests
{
public class TestNullCompressor
{
private readonly string _testsProjectDirectory;
public TestNullCompressor()
{
_testsProjectDirectory = Environment.GetEnvironmentVariable("IMAGE_CORE_TESTS");
}
[Fact]
public void TestNullCompressor_Compress()
{
ICompressor compressor = new NullCompressor();
var sourceFileName = Path.Combine(_testsProjectDirectory, "test_pictures/IMG_0138.HEIC");
var destinationFileName = Path.GetTempFileName();
File.Copy(sourceFileName, destinationFileName, true);
compressor.Compress(destinationFileName);
var originalFile = File.Open(sourceFileName, FileMode.Open);
var compressedFile = File.Open(destinationFileName, FileMode.Open);
Assert.True(compressedFile.Length == originalFile.Length);
originalFile.Close();
compressedFile.Close();
File.Delete(destinationFileName);
}
}
}

View file

@ -1,4 +1,6 @@
namespace Image.Core
using System.IO;
namespace Image.Core
{
/// <summary>
/// ICompressor is an interface for implementing image compressors.
@ -10,5 +12,11 @@
/// </summary>
/// <param name="fileName">The file name of the image to be compressed.</param>
void Compress(string fileName);
/// <summary>
/// The method compresses an image in place.
/// </summary>
/// <param name="stream">The stream of the image to be compressed.</param>
void Compress(Stream stream);
}
}

View file

@ -1,4 +1,5 @@
using ImageMagick;
using System.IO;
using ImageMagick;
namespace Image.Core
{
@ -22,5 +23,13 @@ namespace Image.Core
{
_imageOptimizer.LosslessCompress(fileName);
}
/// <summary>
/// <inheritdoc />
/// </summary>
public void Compress(Stream stream)
{
_imageOptimizer.LosslessCompress(stream);
}
}
}

View file

@ -1,4 +1,6 @@
namespace Image.Core
using System.IO;
namespace Image.Core
{
/// <summary>
/// Does nothing. Using this Compressor will have no effect.
@ -13,5 +15,9 @@
public void Compress(string fileName)
{
}
public void Compress(Stream stream)
{
}
}
}

View file

@ -6,5 +6,10 @@
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