Add metadata cloning tests

tests/ImageSharp.Tests/Formats/Bmp/BmpMetaDataTests.cs

@@ -0,0 +1,22 @@
+// Copyright (c) Six Labors and contributors.
+// Licensed under the Apache License, Version 2.0.
+
+using SixLabors.ImageSharp.Formats.Bmp;
+using Xunit;
+
+namespace SixLabors.ImageSharp.Tests.Formats.Bmp
+{
+    public class BmpMetaDataTests
+    {
+        [Fact]
+        public void CloneIsDeep()
+        {
+            var meta = new BmpMetaData() { BitsPerPixel = BmpBitsPerPixel.Pixel24 };
+            var clone = (BmpMetaData)meta.DeepClone();
+
+            clone.BitsPerPixel = BmpBitsPerPixel.Pixel32;
+
+            Assert.False(meta.BitsPerPixel.Equals(clone.BitsPerPixel));
+        }
+    }
+}

tests/ImageSharp.Tests/Formats/Gif/GifFrameMetaDataTests.cs

@@ -0,0 +1,32 @@
+// Copyright (c) Six Labors and contributors.
+// Licensed under the Apache License, Version 2.0.
+
+using SixLabors.ImageSharp.Formats.Gif;
+using Xunit;
+
+namespace SixLabors.ImageSharp.Tests.Formats.Gif
+{
+    public class GifFrameMetaDataTests
+    {
+        [Fact]
+        public void CloneIsDeep()
+        {
+            var meta = new GifFrameMetaData()
+            {
+                FrameDelay = 1,
+                DisposalMethod = GifDisposalMethod.RestoreToBackground,
+                ColorTableLength = 2
+            };
+
+            var clone = (GifFrameMetaData)meta.DeepClone();
+
+            clone.FrameDelay = 2;
+            clone.DisposalMethod = GifDisposalMethod.RestoreToPrevious;
+            clone.ColorTableLength = 1;
+
+            Assert.False(meta.FrameDelay.Equals(clone.FrameDelay));
+            Assert.False(meta.DisposalMethod.Equals(clone.DisposalMethod));
+            Assert.False(meta.ColorTableLength.Equals(clone.ColorTableLength));
+        }
+    }
+}

tests/ImageSharp.Tests/Formats/Gif/GifMetaDataTests.cs

@@ -0,0 +1,32 @@
+// Copyright (c) Six Labors and contributors.
+// Licensed under the Apache License, Version 2.0.
+
+using SixLabors.ImageSharp.Formats.Gif;
+using Xunit;
+
+namespace SixLabors.ImageSharp.Tests.Formats.Gif
+{
+    public class GifMetaDataTests
+    {
+        [Fact]
+        public void CloneIsDeep()
+        {
+            var meta = new GifMetaData()
+            {
+                RepeatCount = 1,
+                ColorTableMode = GifColorTableMode.Global,
+                GlobalColorTableLength = 2
+            };
+
+            var clone = (GifMetaData)meta.DeepClone();
+
+            clone.RepeatCount = 2;
+            clone.ColorTableMode = GifColorTableMode.Local;
+            clone.GlobalColorTableLength = 1;
+
+            Assert.False(meta.RepeatCount.Equals(clone.RepeatCount));
+            Assert.False(meta.ColorTableMode.Equals(clone.ColorTableMode));
+            Assert.False(meta.GlobalColorTableLength.Equals(clone.GlobalColorTableLength));
+        }
+    }
+}

tests/ImageSharp.Tests/Formats/Jpg/JpegMetaDataTests.cs

@@ -0,0 +1,22 @@
+// Copyright (c) Six Labors and contributors.
+// Licensed under the Apache License, Version 2.0.
+
+using SixLabors.ImageSharp.Formats.Jpeg;
+using Xunit;
+
+namespace SixLabors.ImageSharp.Tests.Formats.Jpg
+{
+    public class JpegMetaDataTests
+    {
+        [Fact]
+        public void CloneIsDeep()
+        {
+            var meta = new JpegMetaData() { Quality = 50 };
+            var clone = (JpegMetaData)meta.DeepClone();
+
+            clone.Quality = 99;
+
+            Assert.False(meta.Quality.Equals(clone.Quality));
+        }
+    }
+}

tests/ImageSharp.Tests/Formats/Png/PngMetaDataTests.cs

@@ -0,0 +1,31 @@
+// Copyright (c) Six Labors and contributors.
+// Licensed under the Apache License, Version 2.0.
+
+using SixLabors.ImageSharp.Formats.Png;
+using Xunit;
+
+namespace SixLabors.ImageSharp.Tests.Formats.Png
+{
+    public class PngMetaDataTests
+    {
+        [Fact]
+        public void CloneIsDeep()
+        {
+            var meta = new PngMetaData()
+            {
+                BitDepth = PngBitDepth.Bit16,
+                ColorType = PngColorType.GrayscaleWithAlpha,
+                Gamma = 2
+            };
+            var clone = (PngMetaData)meta.DeepClone();
+
+            clone.BitDepth = PngBitDepth.Bit2;
+            clone.ColorType = PngColorType.Palette;
+            clone.Gamma = 1;
+
+            Assert.False(meta.BitDepth.Equals(clone.BitDepth));
+            Assert.False(meta.ColorType.Equals(clone.ColorType));
+            Assert.False(meta.Gamma.Equals(clone.Gamma));
+        }
+    }
+}

tests/ImageSharp.Tests/MetaData/ImageFrameMetaDataTests.cs

@@ -32,5 +32,13 @@ namespace SixLabors.ImageSharp.Tests
             Assert.Equal(colorTableLength, cloneGifFrameMetaData.ColorTableLength);
             Assert.Equal(disposalMethod, cloneGifFrameMetaData.DisposalMethod);
         }
+
+        [Fact]
+        public void CloneIsDeep()
+        {
+            var metaData = new ImageFrameMetaData();
+            ImageFrameMetaData clone = metaData.DeepClone();
+            Assert.False(metaData.GetFormatMetaData(GifFormat.Instance).Equals(clone.GetFormatMetaData(GifFormat.Instance)));
+        }
     }
 }

tests/ImageSharp.Tests/MetaData/ImageMetaDataTests.cs

@@ -1,7 +1,7 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
-using SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder;
+using SixLabors.ImageSharp.Formats.Gif;
 using SixLabors.ImageSharp.MetaData;
 using SixLabors.ImageSharp.MetaData.Profiles.Exif;
 using SixLabors.ImageSharp.PixelFormats;
@@ -37,19 +37,43 @@ namespace SixLabors.ImageSharp.Tests
             Assert.Equal(imageProperty, clone.Properties[0]);
         }
 
+        [Fact]
+        public void CloneIsDeep()
+        {
+            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);
+
+            ImageMetaData clone = metaData.DeepClone();
+            clone.HorizontalResolution = 2;
+            clone.VerticalResolution = 4;
+
+            Assert.False(metaData.ExifProfile.Equals(clone.ExifProfile));
+            Assert.False(metaData.HorizontalResolution.Equals(clone.HorizontalResolution));
+            Assert.False(metaData.VerticalResolution.Equals(clone.VerticalResolution));
+            Assert.False(metaData.Properties.Equals(clone.Properties));
+            Assert.False(metaData.GetFormatMetaData(GifFormat.Instance).Equals(clone.GetFormatMetaData(GifFormat.Instance)));
+        }
+
         [Fact]
         public void HorizontalResolution()
         {
             var metaData = new ImageMetaData();
             Assert.Equal(96, metaData.HorizontalResolution);
 
-            metaData.HorizontalResolution=0;
+            metaData.HorizontalResolution = 0;
             Assert.Equal(96, metaData.HorizontalResolution);
 
-            metaData.HorizontalResolution=-1;
+            metaData.HorizontalResolution = -1;
             Assert.Equal(96, metaData.HorizontalResolution);
 
-            metaData.HorizontalResolution=1;
+            metaData.HorizontalResolution = 1;
             Assert.Equal(1, metaData.HorizontalResolution);
         }