Add tests to validate

Author: MaggieKimani1

test/Microsoft.OpenApi.Readers.Tests/V31Tests/OpenApiSchemaTests.cs

@@ -495,5 +495,21 @@ public void ParseSchemaWithConstWorks()
             var schemaString = writer.ToString();
             schemaString.MakeLineBreaksEnvironmentNeutral().Should().Be(expected.MakeLineBreaksEnvironmentNeutral());
         }
+
+        [Fact]
+        public void ParseSchemaWithUnrecognizedKeywordsWorks() 
+        {
+            var input = @"{
+    ""type"": ""string"",
+    ""format"": ""date-time"",
+    ""customKeyword"": ""customValue"",
+    ""anotherKeyword"": 42,
+    ""x-test"": ""test""
+}
+";
+            var schema = OpenApiModelFactory.Parse<OpenApiSchema>(input, OpenApiSpecVersion.OpenApi3_1, out _, "json");
+            schema.UnrecognizedKeywords.Should().HaveCount(2);
+        }
+
     }
 }

test/Microsoft.OpenApi.Readers.Tests/V31Tests/Samples/OpenApiSchema/schemaWithJsonSchemaKeywords.yaml

@@ -28,14 +28,3 @@ required:
   - name
 
 $dynamicAnchor: "addressDef"
-definitions:
-  address:
-    $dynamicAnchor: "addressDef"
-    type: "object"
-    properties:
-      street:
-        type: "string"
-      city:
-        type: "string"
-      postalCode:
-        type: "string"

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

@@ -602,15 +602,42 @@ public void OpenApiWalkerVisitsOpenApiSchemaNot()
             // Assert
             visitor.Titles.Count.Should().Be(2);
         }
-    }
 
-    internal class SchemaVisitor : OpenApiVisitorBase
-    {
-        public List<string> Titles = new();
+        [Fact]
+        public void SerializeSchemaWithUnrecognizedPropertiesWorks()
+        {
+            // Arrange
+            var schema = new OpenApiSchema
+            {
+                UnrecognizedKeywords = new Dictionary<string, JsonNode>()
+                {
+                    ["customKeyWord"] = "bar",
+                    ["anotherKeyword"] = 42
+                }
+            };
 
-        public override void Visit(OpenApiSchema schema)
+            var expected = @"{
+  ""unrecognizedProperties"": {
+    ""customKeyWord"": ""bar"",
+    ""anotherKeyword"": 42
+  }
+}";
+
+            // Act
+            var actual = schema.SerializeAsJson(OpenApiSpecVersion.OpenApi3_1);
+
+            // Assert
+            actual.MakeLineBreaksEnvironmentNeutral().Should().Be(expected.MakeLineBreaksEnvironmentNeutral());
+        }
+
+        internal class SchemaVisitor : OpenApiVisitorBase
         {
-            Titles.Add(schema.Title);
+            public List<string> Titles = new();
+
+            public override void Visit(OpenApiSchema schema)
+            {
+                Titles.Add(schema.Title);
+            }
         }
     }
 }

test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt

@@ -512,6 +512,7 @@ namespace Microsoft.OpenApi.Models
         public const string Type = "type";
         public const string UnevaluatedProperties = "unevaluatedProperties";
         public const string UniqueItems = "uniqueItems";
+        public const string UnrecognizedKeywords = "unrecognizedKeywords";
         public const string Url = "url";
         public const string V2ReferenceUri = "https://registry/definitions/";
         public const string V31ExclusiveMaximum = "exclusiveMaximum";
@@ -925,6 +926,7 @@ namespace Microsoft.OpenApi.Models
         public virtual bool UnEvaluatedProperties { get; set; }
         public virtual bool UnevaluatedProperties { get; set; }
         public virtual bool? UniqueItems { get; set; }
+        public virtual System.Collections.Generic.IDictionary<string, System.Text.Json.Nodes.JsonNode> UnrecognizedKeywords { get; set; }
         public virtual bool UnresolvedReference { get; set; }
         public virtual decimal? V31ExclusiveMaximum { get; set; }
         public virtual decimal? V31ExclusiveMinimum { get; set; }
@@ -1859,6 +1861,7 @@ namespace Microsoft.OpenApi.Writers
         public static void WriteOptionalCollection<T>(this Microsoft.OpenApi.Writers.IOpenApiWriter writer, string name, System.Collections.Generic.IEnumerable<T> elements, System.Action<Microsoft.OpenApi.Writers.IOpenApiWriter, T> action) { }
         public static void WriteOptionalMap(this Microsoft.OpenApi.Writers.IOpenApiWriter writer, string name, System.Collections.Generic.IDictionary<string, bool> elements, System.Action<Microsoft.OpenApi.Writers.IOpenApiWriter, bool> action) { }
         public static void WriteOptionalMap(this Microsoft.OpenApi.Writers.IOpenApiWriter writer, string name, System.Collections.Generic.IDictionary<string, string> elements, System.Action<Microsoft.OpenApi.Writers.IOpenApiWriter, string> action) { }
+        public static void WriteOptionalMap(this Microsoft.OpenApi.Writers.IOpenApiWriter writer, string name, System.Collections.Generic.IDictionary<string, System.Text.Json.Nodes.JsonNode> elements, System.Action<Microsoft.OpenApi.Writers.IOpenApiWriter, System.Text.Json.Nodes.JsonNode> action) { }
         public static void WriteOptionalMap<T>(this Microsoft.OpenApi.Writers.IOpenApiWriter writer, string name, System.Collections.Generic.IDictionary<string, T> elements, System.Action<Microsoft.OpenApi.Writers.IOpenApiWriter, T> action)
             where T : Microsoft.OpenApi.Interfaces.IOpenApiElement { }
         public static void WriteOptionalMap<T>(this Microsoft.OpenApi.Writers.IOpenApiWriter writer, string name, System.Collections.Generic.IDictionary<string, T> elements, System.Action<Microsoft.OpenApi.Writers.IOpenApiWriter, string, T> action)