WIP Adds test for parse_env_file

tests/utils_test.py

@@ -1,12 +1,13 @@
 import os
 import os.path
 import unittest
+import mock
 
 from docker.client import Client
 from docker.errors import DockerException
 from docker.utils import (
     parse_repository_tag, parse_host, convert_filters, kwargs_from_env,
-    create_host_config, Ulimit, LogConfig, parse_bytes
+    create_host_config, Ulimit, LogConfig, parse_bytes, parse_env_file
 )
 from docker.utils.ports import build_port_bindings, split_port
 from docker.auth import resolve_repository_name, resolve_authconfig
@@ -95,6 +96,14 @@ def test_kwargs_from_env(self):
         except TypeError as e:
             self.fail(e)
 
+    def test_parse_env_file_proper(self):
+        with mock.patch('os.path.isfile', return_value=True):
+            mock_env_file = 'USER=jdoe\nPASS=secret'
+            with mock.patch('{}.open'.format(__name__), mock.mock_open(read_data=mock_env_file)):
+                get_parse_env_file = parse_env_file('foobar')
+        self.assertEqual(get_parse_env_file, ['USER=jdoe', 'PASS=secret'])
+
+
     def test_convert_filters(self):
         tests = [
             ({'dangling': True}, '{"dangling": ["true"]}'),