assertThat(selector.aliasOrName(), is(selectorName("car:Car")));
assertThat(selector.alias(), is(nullValue()));
// WHERE ...
PropertyExistence constraint = isPropertyExistence(query.constraint());
assertThat(constraint.getPropertyName(), is("car:model"));
assertThat(constraint.selectorName(), is(selectorName("car:Car")));
// ORDER BY ...
assertThat(query.orderings().size(), is(1));
Ordering ordering = query.orderings().get(0);
assertThat(ordering.order(), is(Order.ASCENDING));
assertThat(ordering.getOperand(), is((DynamicOperand)propertyValue(selectorName("car:Car"), "car:model")));