new: [CI] Use GitHub Actions for test

.github/workflows/python-package.yml

@@ -0,0 +1,50 @@
+name: Python package
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.7", "3.8", "3.9"]
+
+    steps:
+    - run: |
+        sudo apt-get install libfuzzy-dev libpoppler-cpp-dev libzbar0 tesseract-ocr
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Cache Python dependencies
+      uses: actions/cache@v2
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ hashFiles('REQUIREMENTS') }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest
+        # pyfaul must be installed manually (?)
+        pip install -r REQUIREMENTS pyfaup
+        pip install .
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest
+      run: |
+        # Run server in background
+        misp-modules -l 127.0.0.1 -s &
+        sleep 5
+        # Run tests
+        pytest tests