Add inital GitHub Actions

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/test.yml

@@ -0,0 +1,27 @@
+name: Tests (tox)
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8, 3.9]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          pip install tox tox-gh-actions
+
+      - name: Test with tox
+        run: tox

tox.ini

@@ -1,6 +1,14 @@
 [tox]
 envlist = py36, py37, py38, py39, flake8
 
+[gh-actions]
+python =
+    3.5: py35
+    3.6: py36
+    3.7: py37
+    3.8: py38
+    3.9: py39, flak8
+
 [testenv]
 commands =
     {envbindir}/py.test --tb=short \