ci: add test worklow

.github/workflows/tests.yml

@@ -0,0 +1,20 @@
+name: tests
+
+on: [push]
+
+jobs:
+  run-unittests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: |
+            3.9
+            3.10
+            3.11
+      - run: python3 -m pip install --user pipx
+      - run: python3 -m pipx ensurepath
+      - run: pipx install tox
+      - run: tox r
+

README.md

@@ -1,3 +1,6 @@
+[![tests](https://github.com/ifsm/apollon/actions/workflows/tests.yml/badge.svg)](
+https://github.com/ifsm/apollon/actions/workflows/tests.yml)
+
 # Apollon
 Apollon is a Python framework for audio feature extraction and music similarity
 estimation. It includes subpackages for
@@ -12,7 +15,7 @@ The latest version of apollon is available on PyPI. Just open a terminal an run
 the following command to download and install apollon:
 
 ```
-pip install apollon 
+pip install apollon
 ```
 
 We currently provide wheels for macOS and Windows; GNU/Linux users have to

tox.ini

@@ -1,8 +1,7 @@
 [tox]
 requires = numpy >= 1.20
-envlist = py37,py38,py39
+envlist = py38,py39,py311
 
 [testenv]
 deps =
-	pytest
 	hypothesis