Do not break convention when updating sys.path

1 files changed, 6 insertions, 0 deletions

diff --git a/test/test_installation.py b/test/test_installation.py
index db14bc84..3b39a328 100644
--- a/test/test_installation.py
+++ b/test/test_installation.py
@@ -1,6 +1,7 @@
 # This module is part of GitPython and is released under
 # the BSD License: http://www.opensource.org/licenses/bsd-license.php
 
+import ast
 import os
 import subprocess
 from test.lib import TestBase
@@ -27,3 +28,8 @@ class TestInstallation(TestBase):
         self.assertEqual(0, result.returncode, msg=result.stderr or result.stdout or "Can't build - setup.py failed")
         result = subprocess.run([self.python, '-c', 'import git'], stdout=subprocess.PIPE, cwd=self.sources)
         self.assertEqual(0, result.returncode, msg=result.stderr or result.stdout or "Selftest failed")
+        result = subprocess.run([self.python, '-c', 'import sys;import git; print(sys.path)'], stdout=subprocess.PIPE, cwd=self.sources)
+        syspath = result.stdout.decode('utf-8').splitlines()[0] 
+        syspath = ast.literal_eval(syspath)
+        self.assertEqual('', syspath[0], msg='Failed to follow the conventions for https://docs.python.org/3/library/sys.html#sys.path')
+        self.assertTrue(syspath[1].endswith('gitdb'), msg='Failed to add gitdb to sys.path')