Fixed var warnings.

src/ImageSharp/MetaData/Profiles/Exif/ExifProfile.cs

@@ -136,7 +136,7 @@ namespace ImageSharp
                 return null;
             }
 
-            using (MemoryStream memStream = new MemoryStream(this.data, this.thumbnailOffset, this.thumbnailLength))
+            using (var memStream = new MemoryStream(this.data, this.thumbnailOffset, this.thumbnailLength))
             {
                 return Image.Load<TPixel>(memStream);
             }
@@ -201,7 +201,7 @@ namespace ImageSharp
                 }
             }
 
-            ExifValue newExifValue = ExifValue.Create(tag, value);
+            var newExifValue = ExifValue.Create(tag, value);
             this.values.Add(newExifValue);
         }
 
@@ -221,7 +221,7 @@ namespace ImageSharp
                 return null;
             }
 
-            ExifWriter writer = new ExifWriter(this.values, this.Parts);
+            var writer = new ExifWriter(this.values, this.Parts);
             return writer.GetData();
         }
 
@@ -248,7 +248,7 @@ namespace ImageSharp
                 this.RemoveValue(value.Tag);
             }
 
-            Rational newResolution = new Rational(resolution, false);
+            var newResolution = new Rational(resolution, false);
             this.SetValue(tag, newResolution);
         }
 
@@ -265,7 +265,7 @@ namespace ImageSharp
                 return;
             }
 
-            ExifReader reader = new ExifReader();
+            var reader = new ExifReader();
             this.values = reader.Read(this.data);
             this.invalidTags = new List<ExifTag>(reader.InvalidTags);
             this.thumbnailOffset = (int)reader.ThumbnailOffset;

src/ImageSharp/MetaData/Profiles/Exif/ExifReader.cs

@@ -75,7 +75,7 @@ namespace ImageSharp
         {
             DebugGuard.NotNull(data, nameof(data));
 
-            Collection<ExifValue> result = new Collection<ExifValue>();
+            var result = new Collection<ExifValue>();
 
             this.exifData = data;
 
@@ -357,7 +357,7 @@ namespace ImageSharp
         private TEnum ToEnum<TEnum>(int value, TEnum defaultValue)
             where TEnum : struct
         {
-            TEnum enumValue = (TEnum)(object)value;
+            var enumValue = (TEnum)(object)value;
             if (Enum.GetValues(typeof(TEnum)).Cast<TEnum>().Any(v => v.Equals(enumValue)))
             {
                 return enumValue;
@@ -403,7 +403,7 @@ namespace ImageSharp
 
         private void GetThumbnail(uint offset)
         {
-            Collection<ExifValue> values = new Collection<ExifValue>();
+            var values = new Collection<ExifValue>();
             this.AddValues(values, offset);
 
             foreach (ExifValue value in values)

src/ImageSharp/MetaData/Profiles/Exif/ExifValue.cs

@@ -39,7 +39,7 @@ namespace ImageSharp
             }
             else
             {
-                Array array = (Array)other.exifValue;
+                var array = (Array)other.exifValue;
                 this.exifValue = array.Clone();
             }
         }
@@ -264,7 +264,7 @@ namespace ImageSharp
                 return this.ToString(this.exifValue);
             }
 
-            StringBuilder sb = new StringBuilder();
+            var sb = new StringBuilder();
             foreach (object value in (Array)this.exifValue)
             {
                 sb.Append(this.ToString(value));

tests/ImageSharp.Tests/ConfigurationTests.cs

@@ -7,6 +7,7 @@ namespace ImageSharp.Tests
 {
     using System;
     using System.Collections.Generic;
+    using System.IO;
     using System.Linq;
 
     using ImageSharp.Formats;
@@ -23,7 +24,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void DefaultsToLocalFileSystem()
         {
-            Configuration configuration = Configuration.CreateDefaultInstance();
+            var configuration = Configuration.CreateDefaultInstance();
 
             ImageSharp.IO.IFileSystem fs = configuration.FileSystem;
 
@@ -33,7 +34,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void IfAutoloadWellknwonFormatesIsTrueAllFormateAreLoaded()
         {
-            Configuration configuration = Configuration.CreateDefaultInstance();
+            var configuration = Configuration.CreateDefaultInstance();
 
             Assert.Equal(4, configuration.ImageFormats.Count);
         }
@@ -95,7 +96,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void TestAddImageFormatThrowsWithNullEncoder()
         {
-            TestFormat format = new TestFormat { Encoder = null };
+            var format = new TestFormat { Encoder = null };
 
             Assert.Throws<ArgumentNullException>(() =>
             {
@@ -110,7 +111,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void TestAddImageFormatThrowsWithNullDecoder()
         {
-            TestFormat format = new TestFormat { Decoder = null };
+            var format = new TestFormat { Decoder = null };
 
             Assert.Throws<ArgumentNullException>(() =>
             {
@@ -125,7 +126,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void TestAddImageFormatThrowsWithNullOrEmptyMimeType()
         {
-            TestFormat format = new TestFormat { MimeType = null };
+            var format = new TestFormat { MimeType = null };
 
             Assert.Throws<ArgumentNullException>(() =>
             {
@@ -147,7 +148,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void TestAddImageFormatThrowsWithNullOrEmptyExtension()
         {
-            TestFormat format = new TestFormat { Extension = null };
+            var format = new TestFormat { Extension = null };
 
             Assert.Throws<ArgumentNullException>(() =>
             {
@@ -169,7 +170,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void TestAddImageFormatThrowsWenSupportedExtensionsIsNullOrEmpty()
         {
-            TestFormat format = new TestFormat { SupportedExtensions = null };
+            var format = new TestFormat { SupportedExtensions = null };
 
             Assert.Throws<ArgumentNullException>(() =>
             {
@@ -191,7 +192,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void TestAddImageFormatThrowsWithoutDefaultExtension()
         {
-            TestFormat format = new TestFormat { Extension = "test" };
+            var format = new TestFormat { Extension = "test" };
 
             Assert.Throws<ArgumentException>(() =>
             {
@@ -206,7 +207,7 @@ namespace ImageSharp.Tests
         [Fact]
         public void TestAddImageFormatThrowsWithEmptySupportedExtension()
         {
-            TestFormat format = new TestFormat
+            var format = new TestFormat
             {
                 Extension = "test",
                 SupportedExtensions = new[] { "test", string.Empty }
@@ -238,7 +239,7 @@ namespace ImageSharp.Tests
         {
             Configuration.Default.AddImageFormat(new PngFormat());
 
-            Image<Rgba32> image = new Image<Rgba32>(1, 1);
+            var image = new Image<Rgba32>(1, 1);
             Assert.Equal(image.Configuration.ParallelOptions, Configuration.Default.ParallelOptions);
             Assert.Equal(image.Configuration.ImageFormats, Configuration.Default.ImageFormats);
         }
@@ -251,8 +252,8 @@ namespace ImageSharp.Tests
         {
             Configuration.Default.AddImageFormat(new PngFormat());
 
-            Image<Rgba32> image = new Image<Rgba32>(1, 1);
-            Image<Rgba32> image2 = new Image<Rgba32>(image);
+            var image = new Image<Rgba32>(1, 1);
+            var image2 = new Image<Rgba32>(image);
             Assert.Equal(image2.Configuration.ParallelOptions, image.Configuration.ParallelOptions);
             Assert.True(image2.Configuration.ImageFormats.SequenceEqual(image.Configuration.ImageFormats));
         }