unit test improvement (wrt #312)

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/failing/TestOverlappingTypeIdNames312.java

@@ -2,7 +2,7 @@
 
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
-
+import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.databind.*;
 
 public class TestOverlappingTypeIdNames312 extends BaseMapTest
@@ -17,22 +17,43 @@ static abstract class Base312 { }
     static class Impl312 extends Base312 {
         public int x;
     }
-    
+
+    @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "type")
+    @JsonSubTypes({
+        @JsonSubTypes.Type(name = "a", value = Impl312B1.class),
+        @JsonSubTypes.Type(name = "a", value = Impl312B2.class)
+})
+    static class Base312B {
+        public int value = 1;
+    }
+
+    static class Impl312B1 extends Base312B { }
+    static class Impl312B2 extends Base312B { }
+
+    final ObjectMapper MAPPER = objectMapper();
+
     public void testOverlappingNameDeser() throws Exception
     {
-        final ObjectMapper mapper = objectMapper();
         Base312 value;
 
         // Ensure both type ids are acceptable
 
-        value = mapper.readValue(aposToQuotes("{'type':'a','x':7}"), Base312.class);
+        value = MAPPER.readValue(aposToQuotes("{'type':'a','x':7}"), Base312.class);
         assertNotNull(value);
         assertEquals(Impl312.class, value.getClass());
         assertEquals(7, ((Impl312) value).x);
 
-        value = mapper.readValue(aposToQuotes("{'type':'b','x':3}"), Base312.class);
+        value = MAPPER.readValue(aposToQuotes("{'type':'b','x':3}"), Base312.class);
         assertNotNull(value);
         assertEquals(Impl312.class, value.getClass());
         assertEquals(3, ((Impl312) value).x);
     }
+
+    public void testOverlappingNameSer() throws Exception
+    {
+        assertEquals(aposToQuotes("{'type':'a','value':1}"),
+                MAPPER.writeValueAsString(new Impl312B1()));
+        assertEquals(aposToQuotes("{'type':'a','value':1}"),
+                MAPPER.writeValueAsString(new Impl312B2()));
+    }
 }