### Question:
SANManager implements LogicalStorageManager { public void unexportVolumeFromAll(String volumeId) throws EucalyptusCloudException { String sanVolumeId = lookup(volumeId).getSanVolumeId(); LOG.info("Unexporting " + sanVolumeId + " on backend from all hosts"); connectionManager.unexportResourceFromAll(sanVolumeId); } SANManager();   SANManager(SANProvider connectionManager); static LogicalStorageManager getInstance(); void addSnapshot(String snapshotId); void checkPreconditions(); @Override void cleanSnapshot(String snapshotId, String snapshotPointId); void cleanVolume(String volumeId); void configure(); StorageResource createSnapshot(String volumeId, String snapshotId, String snapshotPointId, Boolean shouldTransferSnapshots); void createSnapshot(String volumeId, String snapshotId, String snapshotPointId); void createVolume(String volumeId, int size); int createVolume(String volumeId, String snapshotId, int size); void cloneVolume(String volumeId, String parentVolumeId); @Override void deleteSnapshot(String snapshotId, String snapshotPointId); void deleteVolume(String volumeId); int getSnapshotSize(String snapshotId); String getVolumeConnectionString(String volumeId); void initialize(); void loadSnapshots(List<String> snapshotSet, List<String> snapshotFileNames); List<String> prepareForTransfer(String snapshotId); void reload(); void startupChecks(); void finishVolume(String snapshotId); StorageResourceWithCallback prepSnapshotForDownload(final String snapshotId, int sizeExpected, long actualSizeInMB); ArrayList<ComponentProperty> getStorageProps(); void setStorageProps(ArrayList<ComponentProperty> storageProps); String getStorageRootDirectory(); String getVolumePath(String volumeId); void importVolume(String volumeId, String volumePath, int size); String getSnapshotPath(String snapshotId); void importSnapshot(String snapshotId, String volumeId, String snapPath, int size); String exportVolume(String volumeId, String nodeIqn); void unexportVolumeFromAll(String volumeId); void unexportVolume(String volumeId, String nodeIqn); void checkReady(); void stop(); void disable(); void enable(); boolean getFromBackend(String snapshotId, int size); void checkVolume(String volumeId); List<CheckerTask> getCheckers(); String createSnapshotPoint(String parentVolumeId, String volumeId); void deleteSnapshotPoint(String parentVolumeId, String volumeId, String snapshotPointId); @Override boolean supportsIncrementalSnapshots(); @Override StorageResourceWithCallback prepIncrementalSnapshotForUpload(String volumeId, String snapshotId, String snapPointId, String prevSnapshotId,
      String prevSnapPointId); @Override StorageResource prepSnapshotForUpload(String volumeId, String snapshotId, String snapPointId); @Override StorageResourceWithCallback prepSnapshotBaseForRestore(final String snapshotId, final int size, final String snapshotPointId); @Override void restoreSnapshotDelta(String currentSnapId, String prevSnapId, String baseId, StorageResource sr); @Override void completeSnapshotRestorationFromDeltas(String snapshotId); @Override T executeCallback(Function<F, T> callback, F input);  }### Answer:
@Test public void unexportVolumeFromAll_BasicTest() throws Exception { final String volId = "foo"; final String sanVolId = "fooprefix" + volId + "foosuffix"; final String volIqn = "foo-iqn"; final SANVolumeInfo existing = new SANVolumeInfo(volId); existing.setSanVolumeId(sanVolId); existing.setIqn(volIqn); try (TransactionResource tran = Entities.transactionFor(SANVolumeInfo.class)) { Entities.persist(existing); tran.commit(); } final SANProvider sanProvider = context.mock(SANProvider.class); context.checking(new Expectations() { { oneOf(sanProvider).unexportResourceFromAll(sanVolId); } }); SANManager test = new SANManager(sanProvider); test.unexportVolumeFromAll(volId); }
@Test(expected = EucalyptusCloudException.class) public void unexportVolumeFromAll_VolumeDoesNotExistTest() throws Exception { final SANProvider sanProvider = context.mock(SANProvider.class); SANManager test = new SANManager(sanProvider); test.unexportVolumeFromAll("foo"); }