Add automated tests

.github/workflows/unittest.yml

@@ -0,0 +1,34 @@
+name: unittest
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.11"]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install torch --extra-index-url https://download.pytorch.org/whl/cpu
+          pip install .
+      - name: Lint with flake8
+        run: |
+          pip install flake8
+          # stop the build if there are Python syntax errors or undefined names
+          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics --exclude experiments
+      - name: Test
+        run: SKIP_SLOW_TESTS=True python -m unittest discover -s tests