diff --git a/.coveragerc b/.coveragerc
index fa5cdb96..0ed78884 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -8,4 +8,5 @@ omit =
     model_data/app.py
     model_data/plotting/*
     recommendations/rdsap_tables.py
-    model_data/simulation_system/*
\ No newline at end of file
+    model_data/simulation_system/*
+    model_data/cleaner_app.py
\ No newline at end of file
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
new file mode 100644
index 00000000..19a731e6
--- /dev/null
+++ b/.github/workflows/unit_tests.yml
@@ -0,0 +1,31 @@
+name: Python package
+
+on: [ push, pull_request ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [ 3.8, 3.9, 3.10 ]
+
+    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: |
+          python -m pip install --upgrade pip
+          pip install -r model_data/requirements/requirements.txt
+      - name: Run tests with pytest
+        run: |
+          pip install -r model_data/requirements/dev.txt
+          pytest
+#      - name: Upload coverage to Codecov
+#        uses: codecov/codecov-action@v2
+#        with:
+#          token: ${{ secrets.CODECOV_TOKEN }}
+#          fail_ci_if_error: true