Add test, apply format

Author: TheConstructor

System.Text.Json.Extensions/Utf8JsonWriterExtensions.cs

@@ -10,7 +10,8 @@ public static class Utf8JsonWriterExtensions
         /// 
         /// Based on <see cref="JsonKeyValuePairConverter{TKey,TValue}.WriteProperty{T}"/>
         /// </summary>
-        public static void WriteObject<T>(this Utf8JsonWriter writer, string propertyName, T value, JsonSerializerOptions options)
+        public static void WriteObject<T>(this Utf8JsonWriter writer, string propertyName, T value,
+            JsonSerializerOptions options)
         {
             if (writer == null)
             {

System.Text.Json.ExtensionsTest/Converters/KeyValuePairCollectionConverterFactoryFixture.cs

@@ -1,5 +1,4 @@
 using System.Collections.Generic;
-using System.IO;
 using System.Text.Json.Extensions.Converters;
 using System.Text.Json.Serialization;
 using Shouldly;
@@ -82,7 +81,7 @@ public void CanWriteList()
                         jsonSerializerOptions);
                 },
                 jsonSerializerOptions);
-            
+
             json.ShouldBe("{\"Key\":\"Value\"}");
         }
 
@@ -105,7 +104,7 @@ public void CanWriteDictionary()
                         jsonSerializerOptions);
                 },
                 jsonSerializerOptions);
-            
+
             json.ShouldBe("{\"Key\":\"Value\"}");
         }
     }

System.Text.Json.ExtensionsTest/TestHelper.cs

@@ -12,7 +12,8 @@ public static void GetReader(string json, JsonSerializerOptions options, out Utf
             reader = new Utf8JsonReader(utf8Bytes, jsonReaderOptions);
         }
 
-        public static string WithWriter(Action<Utf8JsonWriter> action, JsonSerializerOptions options, bool skipValidation = true)
+        public static string WithWriter(Action<Utf8JsonWriter> action, JsonSerializerOptions options,
+            bool skipValidation = true)
         {
             using var buffer = new MemoryStream();
             using (var writer = new Utf8JsonWriter(buffer, options.GetWriterOptions(skipValidation)))

System.Text.Json.ExtensionsTest/Utf8JsonReaderExtensionsFixture.cs

@@ -7,7 +7,7 @@ namespace System.Text.Json.ExtensionsTest
     public class Utf8JsonReaderExtensionsFixture
     {
         [Fact]
-        public void ReadObjectReadDummyObject()
+        public void ReadObjectReadsDummyObject()
         {
             var jsonSerializerOptions = new JsonSerializerOptions();
             TestHelper.GetReader("{\"MyValue\": \"MyValue\"}", jsonSerializerOptions, out var reader);

System.Text.Json.ExtensionsTest/Utf8JsonWriterExtensionsFixture.cs

@@ -1,7 +1,24 @@
+using System.Text.Json.Extensions;
+using Shouldly;
+using Xunit;
+
 namespace System.Text.Json.ExtensionsTest
 {
     public class Utf8JsonWriterExtensionsFixture
     {
-        
+        [Fact]
+        public void WriteObjectWritesDummyObject()
+        {
+            var dummyObject = new TestHelper.DummyObject
+            {
+                MyValue = "TestValue"
+            };
+            var jsonSerializerOptions = new JsonSerializerOptions();
+
+            var json = TestHelper.WithWriter(writer => { writer.WriteObject(dummyObject, jsonSerializerOptions); },
+                jsonSerializerOptions);
+
+            json.ShouldBe("{\"MyValue\":\"TestValue\"}");
+        }
     }
 }