@Test
public void testGetKeyPropertyId() {

  Schema schema = new SchemaImpl(resourceProvider);
  Assert.assertEquals(PropertyHelper.getPropertyId("c1", "p1"), schema.getKeyPropertyId(Resource.Type.Cluster));
  Assert.assertEquals(PropertyHelper.getPropertyId("c1", "p2"), schema.getKeyPropertyId(Resource.Type.Host));
  Assert.assertEquals(PropertyHelper.getPropertyId("c1", "p3"), schema.getKeyPropertyId(Resource.Type.Component));
}