Add test script

Author: AnsgarKlein

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
       uses: actions/setup-python@v6
 
     - name: Run tests
-      run: python -m unittest discover --start-directory tests
+      run: scripts/test.sh
 
   lint:
     name: 'Lint'

scripts/test.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+SCRIPT_DIR="$(cd "$(dirname "$(realpath "$0")")" && pwd -P)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
+TEST_DIR='tests'
+
+# Change directory to project root
+cd "$PROJECT_ROOT" || exit 1
+
+python -m unittest discover --start-directory "$TEST_DIR"