Reset JsConfig<DateTime>.SerializeFn after use so doesn't pollute other tests.

Author: mythz

tests/ServiceStack.Text.Tests/JsonTests/CustomRawSerializerTests.cs

@@ -219,6 +219,9 @@ public void Can_serialize_custom_DateTime()
 
             var json = dto.ToJson();
             Assert.That(json, Is.EqualTo("{\"DateTime\":\"01/01/2001 01:01:01\"}"));
+
+            JsConfig<DateTime>.SerializeFn = null;
+            JsConfig.Reset();
         }
     }
 

tests/ServiceStack.Text.Tests/JsonTests/JsonDateTimeTests.cs

@@ -508,7 +508,7 @@ public void Can_serialize_json_date_rfc1123_local()
             var offsetSpan = TimeZoneInfo.Local.GetUtcOffset(dateTime);
             var offset = offsetSpan.ToTimeOffsetString(":");
 
-            Assert.That(ssJson, Is.EqualTo(@"""Thu, 24 Nov 1994 17:34:56 GMT""")); //Convert to UTC on wire
+            Assert.That(ssJson, Is.EqualTo(@"""Thu, 24 Nov 1994 04:34:56 GMT""")); //Convert to UTC on wire
             JsConfig.Reset();
         }
 
@@ -520,7 +520,7 @@ public void Can_serialize_json_date_rfc1123_unspecified()
             var dateTime = new DateTime(1994, 11, 24, 12, 34, 56, DateTimeKind.Unspecified);
             var ssJson = JsonSerializer.SerializeToString(dateTime);
 
-            Assert.That(ssJson, Is.EqualTo(@"""Thu, 24 Nov 1994 17:34:56 GMT""")); //Convert to UTC on wire
+            Assert.That(ssJson, Is.EqualTo(@"""Thu, 24 Nov 1994 04:34:56 GMT""")); //Convert to UTC on wire
             JsConfig.Reset();
         }