Run tox and tests in parallel

Author: elbersb

CONTRIBUTING.rst

@@ -95,7 +95,7 @@ Ready to contribute? Here's how to set up `confidence` for local development.
 
    To test across all supported Python versions (3.9, 3.10, 3.11, 3.12)::
 
-    $ uv run tox
+    $ uv run tox -p auto
 
    Note: tox requires all Python versions to be installed on your system.
 

pyproject.toml

@@ -34,6 +34,7 @@ dev = [
     "tox-uv>=1.0.0",
     "pytest>=7.0.0",
     "pytest-cov>=4.0.0",
+    "pytest-xdist>=3.0.2",
     "coverage>=7.0.0",
 ]
 

tox.ini

@@ -5,7 +5,7 @@ requires = tox-uv
 
 [gh-actions]
 python =
-    3.9: py39, py39-min
+    3.9: py39-min
     3.10: py310
     3.11: py311
     3.12: py312
@@ -15,7 +15,14 @@ extras = dev
 commands =
     black --check --diff spotify_confidence tests
     flake8 spotify_confidence tests
-    pytest {posargs}
+    pytest -n auto --no-cov --basetemp={envtmpdir} {posargs}
+
+[testenv:py312]
+extras = dev
+commands =
+    black --check --diff spotify_confidence tests
+    flake8 spotify_confidence tests
+    pytest -n auto --basetemp={envtmpdir} {posargs}
 
 [testenv:py39-min]
 basepython = python3.9
@@ -30,11 +37,12 @@ deps =
     flake8==6.0.0
     pytest==7.0.0
     pytest-cov==4.0.0
+    pytest-xdist==3.0.2
     coverage==7.0.0
 commands =
     black --check --diff spotify_confidence tests
     flake8 spotify_confidence tests
-    pytest {posargs}
+    pytest -n auto --no-cov --basetemp={envtmpdir} {posargs}
 
 [flake8]
 max-line-length = 120