NodeState after = builder.getNodeState();
EditorDiff.process(new PropertyIndexEditor(builder), before, after);
NodeState indexed = builder.getNodeState();
FilterImpl f = createFilter(indexed, NT_UNSTRUCTURED);
// Query the index
PropertyIndexLookup lookup = new PropertyIndexLookup(indexed);
assertEquals(ImmutableSet.of("a", "b"), find(lookup, "foo", "abc", f));
assertEquals(ImmutableSet.of("b"), find(lookup, "foo", "def", f));