NoGraphLibrary extends GraphLibrary { @Override public Pair<String, String> getIds(final String graphId) { return null; } NoGraphLibrary(); @Override void initialise(final String path); @Override Pair<String, String> getIds(final String graphId);  }
@Test public void shouldReturnNullWhenGettingIds() { noGraphLibrary.add(GRAPH_ID, SCHEMA_ID, schema, PROPERTIES_ID, storeProperties); assertNull(noGraphLibrary.getIds(GRAPH_ID)); }