Add GitHub actions to run tests

Author: sigmavirus24

.github/workflows/build.yml

@@ -0,0 +1,39 @@
+name: Python tests
+
+on: [push, pull_request]
+
+jobs:
+  test:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python:
+          - { VERSION: "3.6", TOXENV: "py36", ALLOW_FAILURE: false }
+          - { VERSION: "3.7", TOXENV: "py37", ALLOW_FAILURE: false }
+          - { VERSION: "3.8", TOXENV: "py38", ALLOW_FAILURE: false }
+          - { VERSION: "3.9", TOXENV: "py39,pep8",ALLOW_FAILURE: false }
+          - { VERSION: "3.10", TOXENV: "py310", ALLOW_FAILURE: false }
+          - { VERSION: "pypy3", TOXENV: "pypy", ALLOW_FAILURE: false }
+
+    steps:
+      - name: Check out the repository
+        uses: actions/checkout@v2.3.4
+      - name: Setup Python
+        uses: actions/setup-python@v2.2.1
+        with:
+          python-version: ${{ matrix.PYTHON.VERSION }}
+      - name: Upgrade pip
+        run: |
+          pip install -U pip
+          pip --version
+      - name: Install Tox
+        run: |
+          pip install -U tox
+          tox --version
+      - name: Run Tox
+        run: tox
+        env:
+          TOXENV: ${{ matrix.PYTHON.TOXENV }}
+          GH_RECORD_MODE: "none"
+        continue-on-error: ${{ matrix.PYTHON.ALLOW_FAILURE }}

tox.ini

@@ -6,6 +6,8 @@ envlist =
     py36,
     py37,
     py38,
+    py39,
+    py310,
     pep8,
 
 [testenv]