enable backref test

src/test/java/com/fasterxml/jackson/databind/deser/BackReference1516Test.java

@@ -0,0 +1,54 @@
+package com.fasterxml.jackson.databind.deser;
+
+import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonManagedReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.testutil.DatabindTestUtil;
+import org.junit.jupiter.api.Test;
+
+import java.beans.ConstructorProperties;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+
+class BackReference1516Test extends DatabindTestUtil {
+
+    static class ParentWithoutCreator {
+        public String id, name;
+
+        @JsonManagedReference
+        public ChildObject2 child;
+    }
+
+    static class ChildObject2 {
+        public String id, name;
+
+        @JsonBackReference
+        public ParentWithoutCreator parent;
+
+        @ConstructorProperties({"id", "name", "parent"})
+        public ChildObject2(String id, String name,
+                            ParentWithoutCreator parent) {
+            this.id = id;
+            this.name = name;
+            this.parent = parent;
+        }
+    }
+
+    private final ObjectMapper MAPPER = newJsonMapper();
+
+    private final String PARENT_CHILD_JSON = a2q(
+            "{ 'id': 'abc',\n" +
+                    "  'name': 'Bob',\n" +
+                    "  'child': { 'id': 'def', 'name':'Bert' }\n" +
+                    "}");
+
+    @Test
+    void withParentNoCreator() throws Exception {
+        ParentWithoutCreator result = MAPPER.readValue(PARENT_CHILD_JSON,
+                ParentWithoutCreator.class);
+        assertNotNull(result);
+        assertNotNull(result.child);
+        assertSame(result, result.child.parent);
+    }
+}

src/test/java/com/fasterxml/jackson/failing/BackReference1516Test.java

@@ -44,28 +44,6 @@ public ChildObject1(String id, String name,
         }
     }
 
-    static class ParentWithoutCreator {
-        public String id, name;
-
-        @JsonManagedReference
-        public ChildObject2 child;
-    }
-
-    static class ChildObject2 {
-        public String id, name;
-
-        @JsonBackReference
-        public ParentWithoutCreator parent;
-
-        @ConstructorProperties({"id", "name", "parent"})
-        public ChildObject2(String id, String name,
-                            ParentWithoutCreator parent) {
-            this.id = id;
-            this.name = name;
-            this.parent = parent;
-        }
-    }
-
     private final ObjectMapper MAPPER = newJsonMapper();
 
     private final String PARENT_CHILD_JSON = a2q(
@@ -82,13 +60,4 @@ void withParentCreator() throws Exception {
         assertNotNull(result.child);
         assertSame(result, result.child.parent);
     }
-
-    @Test
-    void withParentNoCreator() throws Exception {
-        ParentWithoutCreator result = MAPPER.readValue(PARENT_CHILD_JSON,
-                ParentWithoutCreator.class);
-        assertNotNull(result);
-        assertNotNull(result.child);
-        assertSame(result, result.child.parent);
-    }
 }