Apply suggestions from code review

Author: baywet

test/Microsoft.OpenApi.Tests/Models/OpenApiEncodingTests.cs

@@ -2,6 +2,7 @@
 // Licensed under the MIT license.
 
 using System.Collections.Generic;
+using System.Text.Json.Nodes;
 using System.Threading.Tasks;
 using Xunit;
 
@@ -171,9 +172,7 @@ public async Task SerializeEncodingWithNestedEncodingAsV32JsonWorks()
             var actual = await encoding.SerializeAsJsonAsync(OpenApiSpecVersion.OpenApi3_2);
 
             // Assert
-            actual = actual.MakeLineBreaksEnvironmentNeutral();
-            expected = expected.MakeLineBreaksEnvironmentNeutral();
-            Assert.Equal(expected, actual);
+            Assert.True(JsonNode.DeepEquals(JsonNode.Parse(actual), JsonNode.Parse(expected)));
         }
 
         [Fact]
@@ -214,9 +213,7 @@ public async Task SerializeEncodingWithNestedEncodingAsV32YamlWorks()
             var actual = await encoding.SerializeAsYamlAsync(OpenApiSpecVersion.OpenApi3_2);
 
             // Assert
-            actual = actual.MakeLineBreaksEnvironmentNeutral();
-            expected = expected.MakeLineBreaksEnvironmentNeutral();
-            Assert.Equal(expected, actual);
+            Assert.True(JsonNode.DeepEquals(JsonNode.Parse(actual), JsonNode.Parse(expected)));
         }
 
         [Fact]
@@ -271,9 +268,7 @@ public async Task SerializeEncodingWithItemAndPrefixEncodingAsV32JsonWorks()
             var actual = await encoding.SerializeAsJsonAsync(OpenApiSpecVersion.OpenApi3_2);
 
             // Assert
-            actual = actual.MakeLineBreaksEnvironmentNeutral();
-            expected = expected.MakeLineBreaksEnvironmentNeutral();
-            Assert.Equal(expected, actual);
+            Assert.True(JsonNode.DeepEquals(JsonNode.Parse(actual), JsonNode.Parse(expected)));
         }
 
         [Fact]
@@ -321,9 +316,7 @@ public async Task SerializeEncodingAsV31ShouldUseExtensionsForNewFields()
             var actual = await encoding.SerializeAsJsonAsync(OpenApiSpecVersion.OpenApi3_1);
 
             // Assert
-            actual = actual.MakeLineBreaksEnvironmentNeutral();
-            expected = expected.MakeLineBreaksEnvironmentNeutral();
-            Assert.Equal(expected, actual);
+            Assert.True(JsonNode.DeepEquals(JsonNode.Parse(actual), JsonNode.Parse(expected)));
         }
     }
 }