Run tests in GitHub Actions

Author: jonathansick

.github/workflows/ci.yaml

@@ -0,0 +1,64 @@
+name: CI
+
+"on": ["pull_request", "push"]
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-python@v2
+
+      - uses: pre-commit/action@v2.0.0
+
+  typing:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0 # full history for setuptools_scm
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Python install
+        run: |
+          python -m pip install --upgrade pip
+          pip install tox
+
+      - name: Run mypy
+        run: tox -e typing
+
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        python-version:
+          - 3.7
+          - 3.8
+          - 3.9
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0 # full history for setuptools_scm
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Python install
+        run: |
+          python -m pip install --upgrade pip
+          pip install tox
+
+      - name: Run tox
+        run: tox -e py,packaging

tox.ini

@@ -1,11 +1,19 @@
 [tox]
 envlist =
+    py
     typing
     lint
     packaging
 isolated_build = True
 skip_missing_interpreters = True
 
+[testenv]
+description = Run unit tests
+extras =
+    dev
+commands=
+    pytest {posargs}
+
 [testenv:lint]
 description = Lint codebase by running pre-commit (Black, isort, Flake8).
 skip_install = true