add action for automated testing

.github/workflows/test_python_script.yml

@@ -0,0 +1,57 @@
+# This action executes the Python test 'test_update_index.py' and outputs the test results whenever a change to the file 'update_index.py' in the 'scripts' folder is pushed to the repository.
+
+name: Test Python Script for index update
+
+on:
+  push:
+    paths:
+      - 'scripts/update_index.py'
+  pull_request:
+    paths:
+      - 'scripts/update_index.py'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Run tests
+        id: run_tests
+        run: |
+          python -m unittest discover -s tests -p '*.py'
+        continue-on-error: true
+
+      - name: Generate coverage report
+        run: |
+          pip install coverage
+          coverage run -m unittest discover -s tests -p '*.py'
+          coverage xml
+          coverage report
+
+      - name: Post test results as comment
+        if: always()
+        uses: actions/github-script@v4
+        with:
+          script: |
+            const fs = require('fs');
+            const results = fs.readFileSync('coverage.xml', 'utf8');
+            const comment = `## Test Results\n\n\`\`\`xml\n${results}\n\`\`\``;
+            github.rest.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: comment
+            });

.github/workflows/unzip_and_process_IG_for_archive.yml

@@ -8,7 +8,7 @@ on:
     push:
         branches:
             - gh-pages
-            - feature/automate-gh*
+            - feature/automate-gh* # TODO remove this line after testing
         paths:
             - IG/isik-*.zip  # Trigger auf das Hinzufügen einer ZIP-Datei im IG-Ordner