Add a (failing) unit test for #4

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/module/jsonSchema/factories/ObjectVisitor.java

@@ -116,5 +116,4 @@ protected JsonSerializer<Object> getSer(BeanProperty prop)
         }
         return ser;
     }
-
 }

src/test/java/com/fasterxml/jackson/module/jsonSchema/failing/TestCyclic.java

@@ -0,0 +1,30 @@
+package com.fasterxml.jackson.module.jsonSchema.failing;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.module.jsonSchema.JsonSchema;
+import com.fasterxml.jackson.module.jsonSchema.JsonSchemaGenerator;
+import com.fasterxml.jackson.module.jsonSchema.SchemaTestBase;
+
+public class TestCyclic extends SchemaTestBase
+{
+    // [Issue#4]
+    public class Loop {
+        public String name;
+        public Loop next;
+    }
+
+    private final ObjectMapper MAPPER = objectMapper();
+    
+    // [Issue#4]
+    public void testSimpleCyclic() throws Exception
+    {
+        JsonSchemaGenerator generator = new JsonSchemaGenerator(MAPPER);
+        JsonSchema schema = generator.generateSchema(Loop.class);
+
+        String json = MAPPER.writeValueAsString(schema).replace('"', '\'');
+        String EXP = "{'type':'object','properties':{"
+                +"'name':{'type':'string'}},'next':{'type':'object'}}}";
+//        System.err.println("JSON: "+json);
+        assertEquals(EXP, json);
+    }
+}

src/test/java/com/fasterxml/jackson/module/jsonSchema/failing/TestUnwrapping.java

@@ -27,7 +27,7 @@ static class Name {
     /**********************************************************
      */
 
-    private final ObjectMapper MAPPER = new ObjectMapper();
+    private final ObjectMapper MAPPER = objectMapper();
 
     public void testUnwrapping()  throws Exception
     {