Avoid issues with null in tests

Author: rowleya

SpiNNaker-front-end/src/main/java/uk/ac/manchester/spinnaker/front_end/BoardLocalSupport.java

@@ -98,6 +98,9 @@ private List<ConnectionDescriptor> generateScampConnections() {
 	}
 
 	protected SpallocClient.Job getJob() throws IOException, StorageException {
+		if (storage == null) {
+			return null;
+		}
 		return getJobFromProxyInfo(storage.getProxyInformation());
 	}
 

SpiNNaker-front-end/src/main/java/uk/ac/manchester/spinnaker/front_end/dse/ExecuteDataSpecification.java

@@ -72,7 +72,7 @@ public abstract class ExecuteDataSpecification extends BoardLocalSupport
 	protected ExecuteDataSpecification(Machine machine, DSEDatabaseEngine db)
 			throws IOException, ProcessException, InterruptedException,
 			StorageException, URISyntaxException {
-		super(db.getStorageInterface(), machine);
+		super(db == null? null: db.getStorageInterface(), machine);
 		this.db = db;
 		this.executor = new BasicExecutor(PARALLEL_SIZE);
 	}