Add test to find out where null array associations cause problems

Author: Burak Serdar

crud/src/test/java/com/redhat/lightblue/mediator/CompositeFinderTest.java

@@ -671,4 +671,40 @@ public void dont_do_outer_joins() throws Exception {
         Assert.assertEquals(1, response.getEntityData().size());
     }
 
+    @Test
+    public void array_in_reference_fullarr() throws Exception {
+        FindRequest fr=new FindRequest();
+        fr.setQuery(query("{'field':'_id','op':'=','rvalue':'1'}"));
+        fr.setProjection(projection("[{'field':'*','recursive':1},{'field':'ref'}]"));
+        fr.setEntityVersion(new EntityVersion("arr_parent","1.0.0"));
+        Response response=mediator.find(fr);
+        System.out.println(response.getEntityData());
+        Assert.assertEquals(1, response.getEntityData().size());
+        Assert.assertEquals(3,response.getEntityData().get(0).get("ref").size());
+    }
+
+    @Test
+    public void array_in_reference_emptyarr() throws Exception {
+        FindRequest fr=new FindRequest();
+        fr.setQuery(query("{'field':'_id','op':'=','rvalue':'2'}"));
+        fr.setProjection(projection("[{'field':'*','recursive':1},{'field':'ref'}]"));
+        fr.setEntityVersion(new EntityVersion("arr_parent","1.0.0"));
+        Response response=mediator.find(fr);
+        System.out.println(response.getEntityData());
+        Assert.assertEquals(1, response.getEntityData().size());
+        Assert.assertNull(response.getEntityData().get(0).get("ref"));
+    }
+
+    @Test
+    public void array_in_reference_nullarr() throws Exception {
+        FindRequest fr=new FindRequest();
+        fr.setQuery(query("{'field':'_id','op':'=','rvalue':'3'}"));
+        fr.setProjection(projection("[{'field':'*','recursive':1},{'field':'ref'}]"));
+        fr.setEntityVersion(new EntityVersion("arr_parent","1.0.0"));
+        Response response=mediator.find(fr);
+        System.out.println(response.getEntityData());
+        Assert.assertEquals(1, response.getEntityData().size());
+        Assert.assertNull(response.getEntityData().get(0).get("ref"));
+    }
+
 }

crud/src/test/resources/composite/arr_child.json

@@ -0,0 +1,32 @@
+{
+  "entityInfo" : {
+    "name": "arr_child",
+    "datastore": {
+        "backend":"mongo",
+        "datasource": "mongodata",
+        "collection": "arr_child"
+    }
+  },
+  "schema" : {
+    "name" : "arr_child",
+    "version": {
+        "value": "1.0.0",
+        "changelog": "Test"
+    },
+    "status": {
+        "value": "active"
+    },
+    "access" : {
+        "insert": ["anyone"],
+        "find":["anyone"],
+        "update":["anyone"],
+        "delete":["anyone"]
+    },
+    "fields": {
+        "_id": {"type": "string", "constraints":{ "identity":1 } },
+        "objectType": {"type": "string"},
+        "name":{"type":"string"}
+    }
+  }
+}
+

crud/src/test/resources/composite/arr_child_data.json

@@ -0,0 +1,9 @@
+[
+    {"_id":"1","objectType":"arr_child","name":"1"},
+    {"_id":"2","objectType":"arr_child","name":"2"},
+    {"_id":"3","objectType":"arr_child","name":"3"},
+    {"_id":"4","objectType":"arr_child","name":"4"},
+    {"_id":"5","objectType":"arr_child","name":"5"},
+    {"_id":"6","objectType":"arr_child","name":"6"},
+    {"_id":"7","objectType":"arr_child","name":"7"}
+]

crud/src/test/resources/composite/arr_parent.json

@@ -0,0 +1,43 @@
+{
+  "entityInfo" : {
+    "name": "arr_parent",
+    "datastore": {
+        "backend":"mongo",
+        "datasource": "mongodata",
+        "collection": "arr_parent"
+    }
+  },
+  "schema" : {
+    "name" : "arr_parent",
+    "version": {
+        "value": "1.0.0",
+        "changelog": "Test"
+    },
+    "status": {
+        "value": "active"
+    },
+    "access" : {
+        "insert": ["anyone"],
+        "find":["anyone"],
+        "update":["anyone"],
+        "delete":["anyone"]
+    },
+    "fields": {
+        "_id": {"type": "string", "constraints":{ "identity":1 } },
+        "objectType": {"type": "string"},
+        "ref": {
+            "entity":"arr_child",
+            "versionValue":"1.0.0",
+            "type":"reference",
+            "query":{"field":"_id","op":"$in","rfield":"$parent.arr" }
+        },
+        "arr":{
+            "type":"array",
+            "items":{
+                "type":"string"
+            }
+        }
+    }
+  }
+}
+

crud/src/test/resources/composite/arr_parent_data.json

@@ -0,0 +1,5 @@
+[
+    { "_id":"1","objectType":"arr_parent","arr":["1","2","3"]},
+    { "_id":"2","objectType":"arr_parent","arr":[]},
+    { "_id":"3","objectType":"arr_parent"}
+]