fixed TestImageProvider<T>.FileProvider bug

ImageSharp.sln.DotSettings

@@ -349,6 +349,7 @@
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=RGB/@EntryIndexedValue">RGB</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=RLE/@EntryIndexedValue">RLE</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=XY/@EntryIndexedValue">XY</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=XYZ/@EntryIndexedValue">XYZ</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/EventHandlerPatternLong/@EntryValue">$object$_On$event$</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=Constants/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=EnumMember/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>

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

@@ -68,11 +68,14 @@ namespace ImageSharp.Tests
                 TestImages.Jpeg.Cmyk
             };
 
+        private const PixelTypes BenchmarkPixels = PixelTypes.StandardImageClass;
+            //PixelTypes.Color | PixelTypes.StandardImageClass | PixelTypes.Argb;
+
         [Theory(
             //Skip = "Benchmark, enable manually!"
             )]
-        [WithFileCollection(nameof(AllBmpFiles), PixelTypes.Color | PixelTypes.StandardImageClass | PixelTypes.Argb, JpegSubsample.Ratio420, 75)]
-        [WithFileCollection(nameof(AllBmpFiles), PixelTypes.Color | PixelTypes.StandardImageClass | PixelTypes.Argb, JpegSubsample.Ratio444, 75)]
+        [WithFileCollection(nameof(BenchmarkFiles), BenchmarkPixels, JpegSubsample.Ratio420, 75)]
+        [WithFileCollection(nameof(BenchmarkFiles), BenchmarkPixels, JpegSubsample.Ratio444, 75)]
         public void Benchmark_JpegEncoder<TColor>(TestImageProvider<TColor> provider, JpegSubsample subSample, int quality)
            where TColor : struct, IPackedPixel, IEquatable<TColor>
         {

tests/ImageSharp.Tests/TestUtilities/Factories/GenericFactory.cs

@@ -23,5 +23,10 @@ namespace ImageSharp.Tests
         {
             return new Image<TColor>(bytes);
         }
+
+        public virtual Image<TColor> CreateImage(Image<TColor> other)
+        {
+            return new Image<TColor>(other);
+        }
     }
 }

tests/ImageSharp.Tests/TestUtilities/Factories/ImageFactory.cs

@@ -10,5 +10,11 @@ namespace ImageSharp.Tests
         public override Image<Color> CreateImage(byte[] bytes) => new Image(bytes);
 
         public override Image<Color> CreateImage(int width, int height) => new Image(width, height);
+
+        public override Image<Color> CreateImage(Image<Color> other)
+        {
+            Image img = (Image)other;
+            return new Image(img);
+        }
     }
 }

tests/ImageSharp.Tests/TestUtilities/ImageProviders/FileProvider.cs

@@ -47,7 +47,7 @@ namespace ImageSharp.Tests
                             return this.Factory.CreateImage(testFile.Bytes);
                         });
 
-                return new Image<TColor>(cachedImage);
+                return this.Factory.CreateImage(cachedImage);
             }
         }
     }

tests/ImageSharp.Tests/TestUtilities/Tests/TestImageProviderTests.cs

@@ -57,6 +57,7 @@ namespace ImageSharp.Tests
 
         [Theory]
         [WithBlankImages(1, 1, PixelTypes.StandardImageClass)]
+        [WithFile(TestImages.Bmp.F, PixelTypes.StandardImageClass)]
         public void PixelTypes_ColorWithDefaultImageClass_TriggersCreatingTheNonGenericDerivedImageClass<TColor>(
             TestImageProvider<TColor> provider) 
             where TColor : struct, IPackedPixel, IEquatable<TColor>