Add slotscheck (#1233)

* add slotscheck

* remove obsolete slots test

* add changelog entry

* fix slotscheck command in GH workflow

Author: ariebovenberg

.github/workflows/test.yml

@@ -51,8 +51,8 @@ jobs:
     - name: Run tests
       run: |
         poetry run flake8 .
-        # In order to make `exclude` option works we need to separate the checks
-        # of returns and its tests in a two separated commands
+        # In order to make `exclude` option work, we need to separate the checks
+        # of returns and its tests into two separated commands
         poetry run mypy returns
         poetry run mypy tests
         # Different python versions are covered differently:
@@ -62,6 +62,7 @@ jobs:
         poetry run poetry check
         poetry run pip check
         poetry run safety check --full-report
+        poetry run slotscheck returns --verbose
         # We do this to speed up the build:
         poetry run pytest typesafety -p no:cov -o addopts="" --mypy-ini-file=setup.cfg
 

CHANGELOG.md

@@ -11,6 +11,11 @@ See [0Ver](https://0ver.org/).
 
 - Adds `attempt` decorator
 
+### Misc
+
+- Check ``__slots__`` correctness with `slotscheck`
+
+
 ## 0.18.0
 
 New Year Release! 🎄

CONTRIBUTING.md

@@ -118,6 +118,7 @@ Before submitting your code please do the following steps:
 7. Run `mypy` to ensure that types are correct
 8. Run `flake8` to ensure that style is correct
 9. Run `doc8` to ensure that docs are correct
+10. Run `slotscheck` to ensure that slots are correct
 
 
 ## Other help