Check for non empty, not non null auth token.

requirements.txt

@@ -3,5 +3,5 @@ confuse>=1.3.0
 flask>=1.1.0,<2.0.0
 MarkupSafe>=0.23,<2.1.0
 click>=7.1.0
-pyngrok>=7.0.0
+pyngrok>=7.0.5
 defusedxml>=0.7.1

tests/managedtestcase.py

@@ -1,5 +1,7 @@
+import os
 import sys
 import time
+import unittest
 from contextlib import contextmanager
 from io import StringIO
 

tests/test_hookee_manager.py

@@ -1,3 +1,6 @@
+import os
+import unittest
+
 import requests
 
 from hookee import util
@@ -8,6 +11,7 @@
 __version__ = "2.0.0"
 
 
+@unittest.skipIf(not os.environ.get("NGROK_AUTHTOKEN"), "NGROK_AUTHTOKEN environment variable not set")
 class TestHookeeManager(ManagedTestCase):
     def test_http_get_query_params(self):
         # GIVEN