"bar", new String[] { "ccc", "ddd" }, //
                "baz", new String[] { "eee", "fff" });
        final Map<String, Object> resultMap = transformer.processFieldConfigs(dataMap, fieldConfigs);
        assertEquals("aaa", ((String[]) resultMap.get("foo"))[0]);
        assertEquals("bbb", ((String[]) resultMap.get("foo"))[1]);
        assertEquals("ddd", resultMap.get("bar"));