@Test
public void testCreateKey() throws Exception {

  assertNull( rrl.createKey( 0, null ) );
  Map<String, Object> keys = new HashMap<String, Object>() {{
      put( "key", "value" );
  }};
  ResourceKey key = rrl.createKey( rrl.SOLUTION_SCHEMA_NAME + rrl.SCHEMA_SEPARATOR, keys );
  assertNotNull( key );
  assertEquals( rrl.SOLUTION_SCHEMA_NAME, key.getSchema() );
}