feat: add tests and code checking using tox

.dockerignore

@@ -1 +1,3 @@
-venv/
+venv/
+.pytest_cache/
+.tox/

.gitignore

@@ -9,4 +9,5 @@
 .devcontainer/
 .env
 
-/cogs/tests.py
+.pytest_cache/
+.tox/

pyproject.toml

@@ -0,0 +1,33 @@
+[tool.tox] # A better implementation is planned. But this avoid to have an additional `tox.ini` file.
+legacy_tox_ini = """
+[tox]
+skipsdist = true
+
+[testenv]
+deps = 
+ -r requirements.txt 
+ -r requirements_dev.txt
+commands =
+ pytest
+ pyright src/
+ black --check src/
+ bandit -r src/ tests/ -c pyproject.toml
+ isort ./src/ --check
+"""
+
+[tool.bandit.assert_used]
+skips = ["*/test_*.py", "*/test_*.py"]
+
+[tool.pytest.ini_options]
+pythonpath = ". src"
+
+[tool.black]
+line-length = 120
+
+[tool.isort]
+profile = "black"
+combine_as_imports = true
+combine_star = true
+line_length = 120
+
+[tool.pyright]

requirements_dev.txt

@@ -0,0 +1,6 @@
+pytest>=7.1.2
+pyright>=1.1.266
+black>=22.6.0
+bandit>=1.7.4
+isort>=5.10.1
+toml>=0.10.2