add github actions

Author: kmaehashi

.github/workflows/test.yml

@@ -0,0 +1,35 @@
+name: "Test"
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        python-version: ['2.7', '3.7', '3.8', '3.9', '3.10']
+
+    steps:
+      - name: Git Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install
+        run: |
+          pip install -v .
+
+      - name: Show environment
+        run: |
+          env
+          python -V
+          pip freeze
+
+      - name: Run tests
+        run: |
+          python -m pytest atwiki
+          atwiki-dump --help