Corrected a bug in [7876] picked up by the buildbot: depending on the order in which tests are run, some tests would fail because of a dependency on the current working directory.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7877 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/admin_scripts/tests.py

@@ -58,6 +58,7 @@ class AdminScriptTestCase(unittest.TestCase):
         # Remember the old environment
         old_django_settings_module = os.environ.get('DJANGO_SETTINGS_MODULE', None)
         old_python_path = os.environ.get('PYTHONPATH', None)
+        old_cwd = os.getcwd()
         
         # Set the test environment
         if settings_file:
@@ -77,6 +78,9 @@ class AdminScriptTestCase(unittest.TestCase):
             os.environ['DJANGO_SETTINGS_MODULE'] = old_django_settings_module
         if old_python_path:
             os.environ['PYTHONPATH'] = old_python_path
+
+        # Move back to the old working directory
+        os.chdir(old_cwd)
         
         return out, err