Removed dtt from tests

test/container-runners.py

@@ -3,26 +3,25 @@
 # Unit tests to run wait-for-it.py unit tests in several different docker images
 
 import unittest
-from ddt import ddt, data
 import os
 import docker
+from parameterized import parameterized
 
 client = docker.from_env()
 app_path = os.path.abspath(os.path.join(os.path.dirname( __file__ ), '..'))
 volumes = {app_path: {'bind': '/app', 'mode': 'ro'}}
 
-@ddt
 class TestContainers(unittest.TestCase):
     """
         Test multiple container types with the test cases in wait-for-it.py
     """
 
-    @data(
+    @parameterized.expand([
         "python:3.5-buster",
         "python:3.5-stretch",
         "dougg/alpine-busybox:alpine-3.11.3_busybox-1.30.1",
-        "dougg/alpine-busybox:alpine-3.11.3_busybox-1.31.1",
+        "dougg/alpine-busybox:alpine-3.11.3_busybox-1.31.1"
-    )
+    ])
     def test_image(self, image):
         print(image)
         command="/app/test/wait-for-it.py"
@@ -30,7 +29,7 @@ class TestContainers(unittest.TestCase):
         result = container.wait()
         logs = container.logs()
         container.remove()
-        self.assertEqual(result, 0, logs)
+        self.assertEqual(result["StatusCode"], 0)
 
 if __name__ == '__main__':
     unittest.main()

test/requirements.txt

@@ -1,2 +1,2 @@
-docker>=2.0.0
+docker>=4.0.0
-dtt>=1.2.0
+parameterized>=0.7.0