adding github workflow

.github/workflows/iob-tests.yml

@@ -0,0 +1,38 @@
+name: iob-tests
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build-linux:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.10'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e .
+        pip install coverage pytest
+    - name: Run tests
+      run: |
+        echo "Running tests..."
+        COVERAGE_FILE=.coverage_layers python3 -m coverage run --source=iobs -m pytest tests/test_layers.py
+        COVERAGE_FILE=.coverage_sims python3 -m coverage run --source=iobs -m pytest tests/test_simulators.py
+        COVERAGE_FILE=.coverage_models python3 -m coverage run --source=iobs -m pytest tests/test_models.py
+      shell: bash
+    - name: Combine results of unit tests
+      run: |
+        python -m pip install --upgrade pip
+        pip install coverage pytest
+        coverage combine .coverage_layers .coverage_sims .coverage_models
+        coverage xml
+        coverage report -m
+      shell: bash