Merge pull request #1166 from guardicore/small_bb_improvements

Small bb improvements

envs/monkey_zoo/blackbox/README.md

@@ -11,6 +11,8 @@ In order to execute the entire test suite, you must know the external IP of the
 this information in the GCP Console `Compute Engine/VM Instances` under _External IP_.
 
 #### Running in command line
+Either run pytest from `/monkey` directory or set `PYTHONPATH` environment variable to
+`/monkey` directory so that blackbox tests can import other monkey code.
 Blackbox tests have following parameters:
 - `--island=IP` Sets island's IP
 - `--no-gcp` (Optional) Use for no interaction with the cloud (local test).

envs/monkey_zoo/blackbox/test_blackbox.py

@@ -159,7 +159,8 @@ class TestMonkeyBlackbox:
         return os.path.abspath(LOG_DIR_PATH)
 
     def test_server_online(self, island_client):
-        assert island_client.get_api_status() is not None
+        if not island_client.get_api_status():
+            pytest.exit("BB tests couldn't reach the Island server, quiting.")
 
     def test_ssh_exploiter(self, island_client):
         TestMonkeyBlackbox.run_exploitation_test(island_client, Ssh, "SSH_exploiter_and_keys")