public void testSharingRemoveCommand(App app) throws IOException {
SharingAdd sharingAddCommand = new SharingAdd(app.getName(), sharingUser.getUsername());
Unit sharingAddResp = connection.execute(sharingAddCommand, apiKey);
assertNotNull(sharingAddResp);
SharingRemove cmd = new SharingRemove(app.getName(), sharingUser.getUsername());
Unit response = connection.execute(cmd, apiKey);
assertNotNull(response);
CollabList collabList = new CollabList(app.getName());
assertCollaboratorNotPresent(sharingUser.getUsername(), collabList);