Fix support for Django 3.2

pytest_django/compat.py

@@ -1,15 +1,39 @@
 # This file cannot be imported from until Django sets up
-try:
-    # Django 1.11
-    from django.test.utils import setup_databases, teardown_databases  # noqa: F401
-except ImportError:
+
+
+def _get_setup_and_teardown_databases():
+    try:
+        # Django 3.2+ has added timing capabilities that we don't really support
+        # right now. Unfortunately that new time_keeper is required.
+        from django.test.utils import NullTimeKeeper
+    except ImportError:
+        pass
+    else:
+        from django.test.utils import setup_databases, teardown_databases
+
+        def wrapped_setup_databases(*args, **kwargs):
+            return setup_databases(*args, time_keeper=NullTimeKeeper(), **kwargs)
+
+        return wrapped_setup_databases, teardown_databases
+
+    try:
+        # Django 1.11+
+        from django.test.utils import setup_databases, teardown_databases  # noqa: F401, F811
+    except ImportError:
+        pass
+    else:
+        return setup_databases, teardown_databases
+
     # In Django prior to 1.11, teardown_databases is only available as a method on DiscoverRunner
-    from django.test.runner import (  # noqa: F401
-        setup_databases,
-        DiscoverRunner as _DiscoverRunner,
-    )
+    from django.test.runner import setup_databases, DiscoverRunner  # noqa: F401, F811
 
     def teardown_databases(db_cfg, verbosity):
-        _DiscoverRunner(verbosity=verbosity, interactive=False).teardown_databases(
+        DiscoverRunner(verbosity=verbosity, interactive=False).teardown_databases(
             db_cfg
         )
+
+    return setup_databases, teardown_databases
+
+
+setup_databases, teardown_databases = _get_setup_and_teardown_databases()
+del _get_setup_and_teardown_databases