Run tests daily, update tox.ini

Ported from canonical/mysql-k8s-operator#146

.github/workflows/ci.yaml

@@ -1,10 +1,13 @@
-name: integration and other tests
+# Copyright 2022 Canonical Ltd.
+# See LICENSE file for licensing details.
+name: Tests
 
 on:
-  workflow_call:
   pull_request:
   schedule:
-    - cron:  '0 12 * * 3'
+    - cron: '53 0 * * *' # Daily at 00:53 UTC
+  # Triggered on push to branch "main" by .github/workflows/release.yaml
+  workflow_call:
 
 jobs:
   lint:
@@ -13,7 +16,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - name: Install dependencies
+      - name: Install tox
+        # TODO: Consider replacing with custom image on self-hosted runner OR pinning version
         run: python3 -m pip install tox
       - name: Run linters
-        run: tox -e lint
+        run: tox run -e lint

tests/integration/__init__.py

@@ -0,0 +1,2 @@
+# Copyright 2023 Canonical Ltd.
+# See LICENSE file for licensing details.

tox.ini

@@ -2,25 +2,25 @@
 # See LICENSE file for licensing details.
 
 [tox]
-skipsdist=True
+no_package = True
 skip_missing_interpreters = True
-envlist = lint, unit
+env_list = lint, unit
 
 [vars]
-tst_path = {toxinidir}/tests/
-all_path = {toxinidir}
+tests_path = {tox_root}/tests
+all_path = {[vars]tests_path}
 
 [testenv]
-setenv =
-  PYTHONPATH = {toxinidir}:{toxinidir}/lib
+set_env =
+  PYTHONPATH = {tox_root}/lib
   PYTHONBREAKPOINT=ipdb.set_trace
   PY_COLORS=1
-passenv =
+pass_env =
   PYTHONPATH
   CHARM_BUILD_DIR
   MODEL_SETTINGS
 
-[testenv:fmt]
+[testenv:format]
 description = Apply coding style standards to code
 deps =
     black
@@ -42,9 +42,9 @@ deps =
     isort
     codespell
 commands =
-    codespell {toxinidir} --skip {toxinidir}/.git --skip {toxinidir}/.tox \
-      --skip {toxinidir}/build --skip {toxinidir}/lib --skip {toxinidir}/venv \
-      --skip {toxinidir}/.mypy_cache --skip {toxinidir}/LICENSE
+    codespell {tox_root} --skip {tox_root}/.git --skip {tox_root}/.tox \
+      --skip {tox_root}/build --skip {tox_root}/lib --skip {tox_root}/venv \
+      --skip {tox_root}/.mypy_cache --skip {tox_root}/LICENSE
     # pflake8 wrapper supports config from pyproject.toml
     pflake8 {[vars]all_path}
     isort --check-only --diff {[vars]all_path}
@@ -56,7 +56,6 @@ deps =
     juju=2.9.38.1
     pytest
     pytest-operator>0.17.0
-    -r{toxinidir}/requirements.txt
+    -r {tox_root}/requirements.txt
 commands =
-    pytest -v --tb native --ignore={[vars]tst_path}unit --log-cli-level=INFO -s {posargs} \
-        --durations=0
+    pytest -v --tb native --log-cli-level=INFO -s {posargs} {[vars]tests_path}/integration/test_bundle.py