Added OfType method to IJsonSerializerSettingsTestBuilder and JsonSerializerSettings (#148)

Author: stankovT

src/MyTested.AspNetCore.Mvc.Controllers.Views.ActionResults/Builders/ActionResults/Json/JsonSerializerSettingsTestBuilder.cs

@@ -139,6 +139,22 @@ public IAndJsonSerializerSettingsTestBuilder ContainingConverterOfType<TJsonConv
             return this;
         }
 
+        /// <inheritdoc />
+        public IAndJsonSerializerSettingsTestBuilder ContainingConverterOfType(Type jsonConverterType)
+        {
+            this.validations.Add((expected, actual) =>
+            {
+                if (actual.Converters.All(c => Reflection.AreDifferentTypes(c.GetType(), jsonConverterType)))
+                {
+                    this.ThrowNewJsonResultAssertionException(
+                        $"converter of {jsonConverterType.Name} type",
+                        "such was not found");
+                }
+            });
+
+            return this;
+        }
+
         /// <inheritdoc />
         public IAndJsonSerializerSettingsTestBuilder ContainingConverters(IEnumerable<JsonConverter> jsonConverters)
         {

src/MyTested.AspNetCore.Mvc.Controllers.Views.ActionResults/Builders/Contracts/ActionResults/Json/IJsonSerializerSettingsTestBuilder.cs

@@ -70,6 +70,14 @@ IAndJsonSerializerSettingsTestBuilder WithContractResolverOfType<TContractResolv
         IAndJsonSerializerSettingsTestBuilder ContainingConverterOfType<TJsonConverter>()
             where TJsonConverter : JsonConverter;
 
+        /// <summary>
+        /// Tests whether the <see cref="JsonSerializerSettings"/> contains
+        /// <see cref="JsonConverter"/> of the provided type.
+        /// </summary>
+        /// <returns>The same <see cref="IAndJsonSerializerSettingsTestBuilder"/>.</returns>
+        IAndJsonSerializerSettingsTestBuilder ContainingConverterOfType(Type jsonConverterType);
+
+
         /// <summary>
         /// Tests whether the <see cref="JsonSerializerSettings"/> contains
         /// the provided <see cref="JsonConverter"/> objects.