id,summary,reporter,owner,description,type,status,component,version,severity,resolution,keywords,cc,stage,has_patch,needs_docs,needs_tests,needs_better_patch,easy,ui_ux 31752,Intermittent test failure on Windows with PostgreSQL,Carlton Gibson,Carlton Gibson,"[https://forum.djangoproject.com/t/gsoc-2020-parallel-test-runner/2528/17 Reported by Ahmad on the forum], there's an intermittent test failure with Windows+Postgres. {{{ (django) PS C:\Users\carlt\src\django\tests> python .\runtests.py --settings=test_postgres m2m_through.tests.M2mThroughTests Testing against Django installed in 'c:\users\carlt\src\django\django' Creating test database for alias 'default'... System check identified no issues (0 silenced). .....................F................... ====================================================================== FAIL: test_order_by_relational_field_through_model (m2m_through.tests.M2mThroughTests) ---------------------------------------------------------------------- Traceback (most recent call last): File ""C:\Users\carlt\src\django\tests\m2m_through\tests.py"", line 247, in test_order_by_relational_field_through_model [self.jim, self.bob] AssertionError: Sequences differ: , ]> != [, ] First differing element 0: - , ]> ? ---------- ^ ^ - + [, ] ? ^ ^ ---------------------------------------------------------------------- Ran 41 tests in 0.264s FAILED (failures=1) Destroying test database for alias 'default'... }}} Looks like a non-deterministic ordering problem. Reproduced at 615e32162ff646db3456b90fb4eaaecc33dd3e4e. ",Bug,closed,"Database layer (models, ORM)",dev,Normal,fixed,"Tests, Windows",Ahmad A. Hussein,Accepted,1,0,0,0,0,0