From 1b756950afb4099d10403fd8d6b59425231f36a5 Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Sat, 7 Nov 2015 18:44:46 +0100
Subject: [PATCH] WIP

---
 .../exceptions/GraphApiException.java         |  1 +
 .../FacebookErrorMessageMappingTest.java      | 30 +++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/src/main/java/de/juplo/facebook/exceptions/GraphApiException.java b/src/main/java/de/juplo/facebook/exceptions/GraphApiException.java
index 9379abe..95bb4de 100644
--- a/src/main/java/de/juplo/facebook/exceptions/GraphApiException.java
+++ b/src/main/java/de/juplo/facebook/exceptions/GraphApiException.java
@@ -37,6 +37,7 @@ public class GraphApiException extends OAuth2Exception
     OBJECT_MAPPER.configure(DeserializationFeature.UNWRAP_ROOT_VALUE, true);
     OBJECT_MAPPER.configure(DeserializationFeature.ACCEPT_FLOAT_AS_INT, false);
     OBJECT_MAPPER.configure(SerializationFeature.WRAP_ROOT_VALUE, true);
+    OBJECT_MAPPER.configure(SerializationFeature.WRITE_NULL_MAP_VALUES, false);
   }
 
 
diff --git a/src/test/java/de/juplo/facebook/exceptions/FacebookErrorMessageMappingTest.java b/src/test/java/de/juplo/facebook/exceptions/FacebookErrorMessageMappingTest.java
index 3d672a4..64f51b2 100644
--- a/src/test/java/de/juplo/facebook/exceptions/FacebookErrorMessageMappingTest.java
+++ b/src/test/java/de/juplo/facebook/exceptions/FacebookErrorMessageMappingTest.java
@@ -7,6 +7,7 @@ import de.juplo.facebook.exceptions.GraphApiException.Type;
 import java.io.IOException;
 import org.junit.Test;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
 
 /**
  * @author Kai Moritz
@@ -26,6 +27,8 @@ public class FacebookErrorMessageMappingTest
           "}" +
       "}";
 
+  final String error_100 = "{\"error\":{\"message\":\"Unsupported get request. Please read the Graph API documentation at https:\\/\\/developers.facebook.com\\/docs\\/graph-api\",\"type\":\"GraphMethodException\",\"code\":100,\"fbtrace_id\":\"Bs\\/0p3CiVld\"}}";
+
 
   @Test
   public void testSerialize() throws JsonProcessingException
@@ -42,6 +45,18 @@ public class FacebookErrorMessageMappingTest
     assertEquals(example, OBJECT_MAPPER.writeValueAsString(error));
   }
 
+  @Test
+  public void testSerialize100() throws JsonProcessingException
+  {
+    FacebookErrorMessage error = new FacebookErrorMessage();
+    error.message = "Unsupported get request. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api";
+    error.type = "GraphMethodException";
+    error.code = 100;
+    error.traceId = "Bs/0p3CiVld";
+
+    assertEquals(error_100, OBJECT_MAPPER.writeValueAsString(error));
+  }
+
   @Test
   public void testDeserialize() throws IOException
   {
@@ -56,4 +71,19 @@ public class FacebookErrorMessageMappingTest
     assertEquals("A message", error.userMessage);
     assertEquals("EJplcsCHuLu", error.traceId);
   }
+
+  @Test
+  public void testDeserialize100() throws IOException
+  {
+    FacebookErrorMessage error =
+        OBJECT_MAPPER.readValue(error_100, FacebookErrorMessage.class);
+
+    assertEquals("Unsupported get request. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api", error.message);
+    assertEquals("GraphMethodException", error.type);
+    assertEquals(new Integer(100), error.code);
+    assertNull(error.subCode);
+    assertNull(error.userTitle);
+    assertNull(error.userMessage);
+    assertEquals("Bs/0p3CiVld", error.traceId);
+  }
 }
-- 
2.20.1