Add github action for testing.

.github/workflows/biothings_annotator_tests.yml

@@ -0,0 +1,40 @@
+name: Biothings Annotator Tests
+
+on:
+  push: {}
+  pull_request:
+    branches:
+      - add-github-action-for-testing
+
+jobs:
+  run_user_geneset_tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
+    steps:
+      - name: Checkout biothings_annotator source
+        uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Upgrade pip
+        run: pip install --upgrade pip
+      - name: Install PyTest
+        run: pip install pytest
+      - name: Install Sanic
+        run: pip install sanic
+      - name: Install biothings_client
+        run: pip install biothings_client
+      - name: Install brotli
+        run: pip install brotli
+      - name: Install sanic_testing
+        run: pip install sanic_testing
+      - name: Run Tests
+        run: pytest tests
+        working-directory: src
+      - name: Setup tmate debug session on failure
+        if: ${{ failure() }}
+        uses: mxschmitt/action-tmate@v3