Implemented shorter GUI tests for headless CI/CD

- Reduced the number of Python versions to test
- Added the MacOS 14 (ARM64) platform

.github/workflows/test-package.yml

@@ -12,8 +12,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        python-version: ['3.9', '3.10', '3.11', '3.12']
+        os: ['ubuntu-latest', 'macos-latest', 'windows-latest', 'macos-14']
+        python-version: ['3.11']
 
     steps:
     - uses: actions/checkout@v4
@@ -38,7 +38,14 @@ jobs:
         # 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: Run headless GUI tests
+      uses: coactions/setup-xvfb@v1
+      with:
+        working-directory: ./tests
+        timeout-minutes: 10
+        run: python -c "from deareis.program import main; from test_gui import setup_headless_tests; setup_headless_tests(); main()"
+
     - name: Run API tests
       working-directory: ./tests
-      timeout-minutes: 30
+      timeout-minutes: 10
       run: python -m unittest discover . -v

tests/run_tests.sh

@@ -20,9 +20,14 @@
 
 if [ "$#" -ne 1 ]; then
 	echo "Incorrect number of arguments provided! One of the following arguments is allowed at a time:"
-	echo "- all: Run all tests."
+	echo "- all: Run all (non-headless) tests."
 	echo "- api: Run API-related tests."
 	echo "- gui: Run GUI-related tests."
+	echo "- headless: Run headless GUI-related tests."
+	exit
+fi
+if [ "$1" == "headless" ]; then
+	python3 -c "from deareis.program import main; from test_gui import setup_headless_tests; setup_headless_tests(); main()"
 	exit
 fi
 if ! [ "$1" == "gui" ]; then