FederatedStore in code test for RemoveGraphAndDeleteAllData

[GCHQDev404]

Describe the new feature you'd like
ADD A TEST to prove Accumulo table is deleted when RemoveGraphAndDeleteAllData is performed links with gh-2632

Why do you want this feature?
currently this has to be tested manual with the team against a real Accumulo instance. ANY future change to the handlers will required re-manual testing.

Describe alternatives you've considered
see comments of #2799
The last assert fails when it shouldn't RemoveGraphAndDeleteAllData hasn't been used yet only RemoveGraph

FederatedStoreTestUtil.resetForFederatedTests();

//Make a FederatedStore
final FederatedStore federatedStore = new FederatedStore();
federatedStore.initialise(GRAPH_ID_TEST_FEDERATED_STORE, new Schema(), new FederatedStoreProperties());

//Add MiniAccumulo
federatedStore.execute(new AddGraph.Builder()
.graphId(DELETE_ALL_DATA_GRAPH)
.schema(loadSchemaFromJson(SCHEMA_EDGE_BASIC_JSON))
.storeProperties(loadAccumuloStoreProperties(PROPERTIES_ACCUMULO_STORE_PROPERTIES))
.build(), contextBlankUser());

//Make a Local MiniAccumulo with Table collision.
final Store directToMiniAccumulo = MiniAccumuloStore.createStore(DELETE_ALL_DATA_GRAPH, loadSchemaFromJson(SCHEMA_EDGE_BASIC_JSON), loadAccumuloStoreProperties(PROPERTIES_ACCUMULO_STORE_PROPERTIES));

//Local Mini is empty
assertThat(directToMiniAccumulo.execute(new GetAllElements(), contextBlankUser()))
.containsExactly();

//Add Element to FederatedStore
federatedStore.execute(new AddElements.Builder().input(edgeBasic()).build(), contextBlankUser());

//Check the element is Local MiniAccumulo confirming table collision.
assertThat(directToMiniAccumulo.execute(new GetAllElements(), contextBlankUser()))
.containsExactly(edgeBasic());

//Federated RemoveGraph with no Deletion of data or tables
federatedStore.execute(new RemoveGraph.Builder().graphId(DELETE_ALL_DATA_GRAPH).build(), contextBlankUser());

//Confirm Local mini is still working and connected to the table.
assertThatNoException()
.isThrownBy(() -> directToMiniAccumulo.execute(new GetAllElements(), contextBlankUser()));

Additional context
Not easy.