build fix + clean up ImageDataAttributeBase code duplication

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

@@ -56,8 +56,7 @@ namespace ImageSharp.Tests.Formats.Png
         //        ms.Position = 0;
         //        using (Image<Rgba32> img2 = Image.Load<Rgba32>(ms, new PngDecoder()))
         //        {
-                    ImageComparer.VerifySimilarity(image, img2, 0.03f);
-        //            ImageComparer.CheckSimilarity(image, img2, 0.03f);
+        //            ImageComparer.VerifySimilarity(image, img2, 0.03f);
         //        }
         //    }
         //}

tests/ImageSharp.Tests/TestFile.cs

@@ -27,7 +27,8 @@ namespace ImageSharp.Tests
         /// <summary>
         /// The formats directory, as lazy value
         /// </summary>
-        private static readonly string FormatsDirectory = TestEnvironment.GetInputImagesDirectoryFullPath();
+        // ReSharper disable once InconsistentNaming
+        private static readonly Lazy<string> formatsDirectory = new Lazy<string>(TestEnvironment.GetInputImagesDirectoryFullPath);
         
         /// <summary>
         /// The image.

tests/ImageSharp.Tests/TestUtilities/Attributes/ImageDataAttributeBase.cs

@@ -54,7 +54,7 @@ namespace ImageSharp.Tests
             if (!string.IsNullOrWhiteSpace(this.MemberName))
             {
                 Type type = this.MemberType ?? testMethod.DeclaringType;
-                Func<object> accessor = this.GetPropertyAccessor(type) ?? this.GetFieldAccessor(type);
+                Func<object> accessor = this.GetPropertyAccessor(type, this.MemberName) ?? this.GetFieldAccessor(type, this.MemberName);
 
                 if (accessor != null)
                 {
@@ -156,12 +156,12 @@ namespace ImageSharp.Tests
         /// <summary>
         /// Gets the field accessor for the given type.
         /// </summary>
-        Func<object> GetFieldAccessor(Type type)
+        protected Func<object> GetFieldAccessor(Type type, string memberName)
         {
             FieldInfo fieldInfo = null;
             for (Type reflectionType = type; reflectionType != null; reflectionType = reflectionType.GetTypeInfo().BaseType)
             {
-                fieldInfo = reflectionType.GetRuntimeField(this.MemberName);
+                fieldInfo = reflectionType.GetRuntimeField(memberName);
                 if (fieldInfo != null)
                     break;
             }
@@ -175,12 +175,12 @@ namespace ImageSharp.Tests
         /// <summary>
         /// Gets the property accessor for the given type.
         /// </summary>
-        Func<object> GetPropertyAccessor(Type type)
+        protected Func<object> GetPropertyAccessor(Type type, string memberName)
         {
             PropertyInfo propInfo = null;
             for (Type reflectionType = type; reflectionType != null; reflectionType = reflectionType.GetTypeInfo().BaseType)
             {
-                propInfo = reflectionType.GetRuntimeProperty(this.MemberName);
+                propInfo = reflectionType.GetRuntimeProperty(memberName);
                 if (propInfo != null)
                 {
                     break;

tests/ImageSharp.Tests/TestUtilities/Attributes/WithFileCollectionAttribute.cs

@@ -38,18 +38,18 @@ namespace ImageSharp.Tests
         /// Triggers passing <see cref="TestImageProvider{TPixel}"/> instances which read an image for each file being enumerated by the (static) test class field/property defined by enumeratorMemberName
         /// <see cref="TestImageProvider{TPixel}"/> instances will be passed for each the pixel format defined by the pixelTypes parameter
         /// </summary>
-        /// <param name="enumeratorMemberName">The name of the static test class field/property enumerating the files</param>
+        /// <param name="fileEnumeratorMemberName">The name of the static test class field/property enumerating the files</param>
         /// <param name="memberName">The member name for enumerating method parameters</param>
         /// <param name="pixelTypes">The requested pixel types</param>
         /// <param name="additionalParameters">Additional theory parameter values</param>
         public WithFileCollectionAttribute(
-            string enumeratorMemberName,
+            string fileEnumeratorMemberName,
             string memberName,
             PixelTypes pixelTypes,
             params object[] additionalParameters)
             : base(memberName, pixelTypes, additionalParameters)
         {
-            this.fileEnumeratorMemberName = enumeratorMemberName;
+            this.fileEnumeratorMemberName = fileEnumeratorMemberName;
         }
 
         /// <summary>
@@ -60,8 +60,8 @@ namespace ImageSharp.Tests
         /// <returns>The <see cref="IEnumerable{T}"/></returns>
         protected override IEnumerable<object[]> GetAllFactoryMethodArgs(MethodInfo testMethod, Type factoryType)
         {
-            Func<object> accessor = this.GetPropertyAccessor(testMethod.DeclaringType);
-            accessor = accessor ?? this.GetFieldAccessor(testMethod.DeclaringType);
+            Func<object> accessor = this.GetPropertyAccessor(testMethod.DeclaringType, this.fileEnumeratorMemberName);
+            accessor = accessor ?? this.GetFieldAccessor(testMethod.DeclaringType, this.fileEnumeratorMemberName);
 
             var files = (IEnumerable<string>)accessor();
             return files.Select(f => new object[] { f });
@@ -69,52 +69,5 @@ namespace ImageSharp.Tests
 
         /// <inheritdoc/>
         protected override string GetFactoryMethodName(MethodInfo testMethod) => "File";
-
-        /// <summary>
-        /// Gets the field accessor for the given type.
-        /// </summary>
-        private Func<object> GetFieldAccessor(Type type)
-        {
-            FieldInfo fieldInfo = null;
-            for (Type reflectionType = type;
-                 reflectionType != null;
-                 reflectionType = reflectionType.GetTypeInfo().BaseType)
-            {
-                fieldInfo = reflectionType.GetRuntimeField(this.fileEnumeratorMemberName);
-                if (fieldInfo != null)
-                {
-                    break;
-                }
-            }
-
-            if (fieldInfo == null || !fieldInfo.IsStatic)
-            {
-                return null;
-            }
-
-            return () => fieldInfo.GetValue(null);
-        }
-
-        /// <summary>
-        /// Gets the property accessor for the given type.
-        /// </summary>
-        private Func<object> GetPropertyAccessor(Type type)
-        {
-            PropertyInfo propInfo = null;
-            for (Type reflectionType = type;
-                 reflectionType != null;
-                 reflectionType = reflectionType.GetTypeInfo().BaseType)
-            {
-                propInfo = reflectionType.GetRuntimeProperty(this.fileEnumeratorMemberName);
-                if (propInfo != null) break;
-            }
-
-            if (propInfo?.GetMethod == null || !propInfo.GetMethod.IsStatic)
-            {
-                return null;
-            }
-
-            return () => propInfo.GetValue(null, null);
-        }
     }
 }

tests/ImageSharp.Tests/TestUtilities/ImagingTestCaseUtility.cs

@@ -127,20 +127,16 @@ namespace ImageSharp.Tests
         /// <param name="image">The image instance</param>
         /// <param name="extension">The requested extension</param>
         /// <param name="encoder">Optional encoder</param>
-        /// <param name="options">Optional encoder options</param>
         public void SaveTestOutputFile<TPixel>(
             Image<TPixel> image,
             string extension = null,
             IImageEncoder encoder = null,
-            IEncoderOptions options = null,
             object settings = null)
             where TPixel : struct, IPixel<TPixel>
         {
             string path = this.GetTestOutputFileName(extension: extension, settings: settings);
             string extension1 = Path.GetExtension(path);
-            encoder = encoder ?? GetImageFormatByExtension(extension);
-            IImageFormat format = GetImageFormatByExtension(extension1);
-
+            encoder = encoder ?? GetImageFormatByExtension(extension1);
             
             using (FileStream stream = File.OpenWrite(path))
             {
@@ -172,7 +168,7 @@ namespace ImageSharp.Tests
         private string GetTestOutputDir()
         {
             string testGroupName = Path.GetFileNameWithoutExtension(this.TestGroupName);
-            return CreateOutputDirectory(testGroupName);
+            return this.CreateOutputDirectory(testGroupName);
         }
     }
 }

tests/ImageSharp.Tests/TestUtilities/Integration/ReferenceDecoder.cs

@@ -11,7 +11,7 @@ namespace ImageSharp.Tests.TestUtilities.Integration
     {
         public static ReferenceDecoder Instance { get; } = new ReferenceDecoder();
 
-        public Image<TPixel> Decode<TPixel>(Configuration configuration, Stream stream, IDecoderOptions options)
+        public Image<TPixel> Decode<TPixel>(Configuration configuration, Stream stream)
             where TPixel : struct, IPixel<TPixel>
         {
             using (var sourceBitmap = new System.Drawing.Bitmap(stream))
@@ -32,8 +32,6 @@ namespace ImageSharp.Tests.TestUtilities.Integration
                     }
                     return IntegrationTestUtils.FromSystemDrawingBitmap<TPixel>(convertedBitmap);
                 }
-
-                
             }
         }
     }

tests/ImageSharp.Tests/TestUtilities/Integration/ReferencePngEncoder.cs

@@ -12,7 +12,7 @@ namespace ImageSharp.Tests.TestUtilities.Integration
     {
         public static ReferencePngEncoder Instance { get; } = new ReferencePngEncoder();
 
-        public void Encode<TPixel>(Image<TPixel> image, Stream stream, IEncoderOptions options)
+        public void Encode<TPixel>(Image<TPixel> image, Stream stream)
             where TPixel : struct, IPixel<TPixel>
         {
             using (System.Drawing.Bitmap sdBitmap = IntegrationTestUtils.ToSystemDrawingBitmap(image))