diff --git a/src/Microsoft.OpenApi.Hidi/Extensions/StringExtensions.cs b/src/Microsoft.OpenApi.Hidi/Extensions/StringExtensions.cs
index 99208a1d4..3d6362084 100644
--- a/src/Microsoft.OpenApi.Hidi/Extensions/StringExtensions.cs
+++ b/src/Microsoft.OpenApi.Hidi/Extensions/StringExtensions.cs
@@ -40,7 +40,7 @@ public static IList<string> SplitByChar(this string target, char separator)
             {
                 return new List<string>();
             }
-            return target.Split(new char[] { separator }, StringSplitOptions.RemoveEmptyEntries).ToList();
+            return target.Split(new[] { separator }, StringSplitOptions.RemoveEmptyEntries).ToList();
         }
     }
 }
diff --git a/src/Microsoft.OpenApi/Any/OpenApiByte.cs b/src/Microsoft.OpenApi/Any/OpenApiByte.cs
index 88b0e178c..f28a50175 100644
--- a/src/Microsoft.OpenApi/Any/OpenApiByte.cs
+++ b/src/Microsoft.OpenApi/Any/OpenApiByte.cs
@@ -12,7 +12,7 @@ public class OpenApiByte : OpenApiPrimitive<byte[]>
         /// Initializes the <see cref="OpenApiByte"/> class.
         /// </summary>
         public OpenApiByte(byte value)
-            : this(new byte[] { value })
+            : this(new[] { value })
         {
         }
 
diff --git a/test/Microsoft.OpenApi.Hidi.Tests/Services/OpenApiServiceTests.cs b/test/Microsoft.OpenApi.Hidi.Tests/Services/OpenApiServiceTests.cs
index b2b6b6c9b..fb451c1d8 100644
--- a/test/Microsoft.OpenApi.Hidi.Tests/Services/OpenApiServiceTests.cs
+++ b/test/Microsoft.OpenApi.Hidi.Tests/Services/OpenApiServiceTests.cs
@@ -322,7 +322,7 @@ public void InvokeTransformCommand()
         {
             var rootCommand = Program.CreateRootCommand();
             var openapi = Path.Combine(".", "UtilityFiles", "SampleOpenApi.yml");
-            var args = new string[] { "transform", "-d", openapi, "-o", "sample.json", "--co" };
+            var args = new[] { "transform", "-d", openapi, "-o", "sample.json", "--co" };
             var parseResult = rootCommand.Parse(args);
             var handler = rootCommand.Subcommands.Where(c => c.Name == "transform").First().Handler;
             var context = new InvocationContext(parseResult);
@@ -339,7 +339,7 @@ public void InvokeShowCommand()
         {
             var rootCommand = Program.CreateRootCommand();
             var openApi = Path.Combine(".", "UtilityFiles", "SampleOpenApi.yml");
-            var args = new string[] { "show", "-d", openApi, "-o", "sample.md" };
+            var args = new[] { "show", "-d", openApi, "-o", "sample.md" };
             var parseResult = rootCommand.Parse(args);
             var handler = rootCommand.Subcommands.Where(c => c.Name == "show").First().Handler;
             var context = new InvocationContext(parseResult);
@@ -355,7 +355,7 @@ public void InvokePluginCommand()
         {
             var rootCommand = Program.CreateRootCommand();
             var manifest = Path.Combine(".", "UtilityFiles", "exampleapimanifest.json");
-            var args = new string[] { "plugin", "-m", manifest, "--of", AppDomain.CurrentDomain.BaseDirectory };
+            var args = new[] { "plugin", "-m", manifest, "--of", AppDomain.CurrentDomain.BaseDirectory };
             var parseResult = rootCommand.Parse(args);
             var handler = rootCommand.Subcommands.Where(c => c.Name == "plugin").First().Handler;
             var context = new InvocationContext(parseResult);
diff --git a/test/Microsoft.OpenApi.Tests/Writers/OpenApiJsonWriterTests.cs b/test/Microsoft.OpenApi.Tests/Writers/OpenApiJsonWriterTests.cs
index f53beb8e3..784750ab6 100644
--- a/test/Microsoft.OpenApi.Tests/Writers/OpenApiJsonWriterTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Writers/OpenApiJsonWriterTests.cs
@@ -22,7 +22,8 @@ public class OpenApiJsonWriterTests
         public static IEnumerable<object[]> WriteStringListAsJsonShouldMatchExpectedTestCases()
         {
             return
-                from input in new string[][] {
+                from input in new[]
+                {
                     new[]
                     {
                         "string1",
@@ -234,7 +235,7 @@ public void WriteMapAsJsonShouldMatchExpected(IDictionary<string, object> inputM
         public static IEnumerable<object[]> WriteDateTimeAsJsonTestCases()
         {
             return
-                from input in new DateTimeOffset[] {
+                from input in new[] {
                     new(2018, 1, 1, 10, 20, 30, TimeSpan.Zero),
                     new(2018, 1, 1, 10, 20, 30, 100, TimeSpan.FromHours(14)),
                     DateTimeOffset.UtcNow + TimeSpan.FromDays(4),
diff --git a/test/Microsoft.OpenApi.Tests/Writers/OpenApiWriterAnyExtensionsTests.cs b/test/Microsoft.OpenApi.Tests/Writers/OpenApiWriterAnyExtensionsTests.cs
index 7c378c16f..05b57f4f3 100644
--- a/test/Microsoft.OpenApi.Tests/Writers/OpenApiWriterAnyExtensionsTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Writers/OpenApiWriterAnyExtensionsTests.cs
@@ -40,7 +40,7 @@ public static IEnumerable<object[]> IntInputs
             get
             {
                 return
-                    from input in new int[] {
+                    from input in new[] {
                         int.MinValue,
                         42,
                         int.MaxValue,
@@ -68,7 +68,7 @@ public static IEnumerable<object[]> LongInputs
             get
             {
                 return
-                    from input in new long[] {
+                    from input in new[] {
                         long.MinValue,
                         42,
                         long.MaxValue,
@@ -96,7 +96,7 @@ public static IEnumerable<object[]> FloatInputs
             get
             {
                 return
-                    from input in new float[] {
+                    from input in new[] {
                         float.MinValue,
                         42.42f,
                         float.MaxValue,
@@ -124,7 +124,7 @@ public static IEnumerable<object[]> DoubleInputs
             get
             {
                 return
-                    from input in new double[] {
+                    from input in new[] {
                         double.MinValue,
                         42.42d,
                         double.MaxValue,