Fixed #26791 -- Replaced LiveServerTestCase port ranges with binding to port 0.

1 files changed, 5 insertions, 14 deletions

diff --git a/tests/staticfiles_tests/test_liveserver.py b/tests/staticfiles_tests/test_liveserver.py
index 2c9d7b71db..1bbadb337b 100644
--- a/tests/staticfiles_tests/test_liveserver.py
+++ b/tests/staticfiles_tests/test_liveserver.py
@@ -44,35 +44,26 @@ class StaticLiveServerChecks(LiveServerBase):
 
     @classmethod
     def setUpClass(cls):
-        # Backup original environment variable
-        address_predefined = 'DJANGO_LIVE_TEST_SERVER_ADDRESS' in os.environ
-        old_address = os.environ.get('DJANGO_LIVE_TEST_SERVER_ADDRESS')
-
         # If contrib.staticfiles isn't configured properly, the exception
         # should bubble up to the main thread.
         old_STATIC_URL = TEST_SETTINGS['STATIC_URL']
         TEST_SETTINGS['STATIC_URL'] = None
-        cls.raises_exception('localhost:8081', ImproperlyConfigured)
+        cls.raises_exception()
         TEST_SETTINGS['STATIC_URL'] = old_STATIC_URL
 
-        # Restore original environment variable
-        if address_predefined:
-            os.environ['DJANGO_LIVE_TEST_SERVER_ADDRESS'] = old_address
-        else:
-            del os.environ['DJANGO_LIVE_TEST_SERVER_ADDRESS']
-
     @classmethod
     def tearDownClass(cls):
         # skip it, as setUpClass doesn't call its parent either
         pass
 
     @classmethod
-    def raises_exception(cls, address, exception):
-        os.environ['DJANGO_LIVE_TEST_SERVER_ADDRESS'] = address
+    def raises_exception(cls):
         try:
             super(StaticLiveServerChecks, cls).setUpClass()
             raise Exception("The line above should have raised an exception")
-        except exception:
+        except ImproperlyConfigured:
+            # This raises ImproperlyConfigured("You're using the staticfiles
+            # app without having set the required STATIC_URL setting.")
             pass
         finally:
             super(StaticLiveServerChecks, cls).tearDownClass()