mirror of https://github.com/SixLabors/ImageSharp
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.1 KiB
92 lines
3.1 KiB
// Copyright (c) Six Labors and contributors.
|
|
// Licensed under the Apache License, Version 2.0.
|
|
|
|
using SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder;
|
|
using SixLabors.ImageSharp.MetaData;
|
|
using SixLabors.ImageSharp.MetaData.Profiles.Exif;
|
|
using SixLabors.ImageSharp.PixelFormats;
|
|
using SixLabors.ImageSharp.Primitives;
|
|
|
|
using Xunit;
|
|
|
|
namespace SixLabors.ImageSharp.Tests
|
|
{
|
|
/// <summary>
|
|
/// Tests the <see cref="ImageMetaData"/> class.
|
|
/// </summary>
|
|
public class ImageMetaDataTests
|
|
{
|
|
[Fact]
|
|
public void ConstructorImageMetaData()
|
|
{
|
|
var metaData = new ImageMetaData();
|
|
|
|
var exifProfile = new ExifProfile();
|
|
var imageProperty = new ImageProperty("name", "value");
|
|
|
|
metaData.ExifProfile = exifProfile;
|
|
metaData.HorizontalResolution = 4;
|
|
metaData.VerticalResolution = 2;
|
|
metaData.Properties.Add(imageProperty);
|
|
metaData.RepeatCount = 1;
|
|
|
|
ImageMetaData clone = metaData.Clone();
|
|
|
|
Assert.Equal(exifProfile.ToByteArray(), clone.ExifProfile.ToByteArray());
|
|
Assert.Equal(4, clone.HorizontalResolution);
|
|
Assert.Equal(2, clone.VerticalResolution);
|
|
Assert.Equal(imageProperty, clone.Properties[0]);
|
|
Assert.Equal(1, clone.RepeatCount);
|
|
}
|
|
|
|
[Fact]
|
|
public void HorizontalResolution()
|
|
{
|
|
var metaData = new ImageMetaData();
|
|
Assert.Equal(96, metaData.HorizontalResolution);
|
|
|
|
metaData.HorizontalResolution=0;
|
|
Assert.Equal(96, metaData.HorizontalResolution);
|
|
|
|
metaData.HorizontalResolution=-1;
|
|
Assert.Equal(96, metaData.HorizontalResolution);
|
|
|
|
metaData.HorizontalResolution=1;
|
|
Assert.Equal(1, metaData.HorizontalResolution);
|
|
}
|
|
|
|
[Fact]
|
|
public void VerticalResolution()
|
|
{
|
|
var metaData = new ImageMetaData();
|
|
Assert.Equal(96, metaData.VerticalResolution);
|
|
|
|
metaData.VerticalResolution = 0;
|
|
Assert.Equal(96, metaData.VerticalResolution);
|
|
|
|
metaData.VerticalResolution = -1;
|
|
Assert.Equal(96, metaData.VerticalResolution);
|
|
|
|
metaData.VerticalResolution = 1;
|
|
Assert.Equal(1, metaData.VerticalResolution);
|
|
}
|
|
|
|
[Fact]
|
|
public void SyncProfiles()
|
|
{
|
|
var exifProfile = new ExifProfile();
|
|
exifProfile.SetValue(ExifTag.XResolution, new Rational(200));
|
|
exifProfile.SetValue(ExifTag.YResolution, new Rational(300));
|
|
|
|
var image = new Image<Rgba32>(1, 1);
|
|
image.MetaData.ExifProfile = exifProfile;
|
|
image.MetaData.HorizontalResolution = 400;
|
|
image.MetaData.VerticalResolution = 500;
|
|
|
|
image.MetaData.SyncProfiles();
|
|
|
|
Assert.Equal(400, ((Rational)image.MetaData.ExifProfile.GetValue(ExifTag.XResolution).Value).ToDouble());
|
|
Assert.Equal(500, ((Rational)image.MetaData.ExifProfile.GetValue(ExifTag.YResolution).Value).ToDouble());
|
|
}
|
|
}
|
|
}
|
|
|