refactor(ci): split Selenium tests into separate job

This prepares the ground for Selenium tests to be run in a Matrix strategy with
multiple different configurations (with JS, without JS, Firefox, Chrome, etc).

.github/workflows/testing.yml

@@ -60,14 +60,51 @@ jobs:
           cp .env.testing app/.env
           cd app/
           mkdir -p static_files
-          python manage.py test
+          python manage.py test --exclude-tag=selenium
         env:
           DJANGO_SETTINGS_MODULE: app.settings
           DATABASE_URL: postgres://sadilar:sadilar@localhost:5432/test_db
       - name: Manager Check
         run: |
           cd app/
           python manage.py check
+  selenium:
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_USER: sadilar
+          POSTGRES_PASSWORD: sadilar
+          POSTGRES_DB: test_db_1
+        ports:
+          - 5432:5432
+        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
+      - name: Install Dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements-test.txt
+          sudo apt-get install -y gettext
+      - name: Create logging folder
+        run: |
+          sudo  mkdir -p /logging
+          sudo chown runner:runner /logging
+      - name: Run Selenium Tests
+        run: |
+          cp .env.testing app/.env
+          cd app/
+          mkdir -p static_files
+          python manage.py test --tag=selenium
+        env:
+          DJANGO_SETTINGS_MODULE: app.settings
+          DATABASE_URL: postgres://sadilar:sadilar@localhost:5432/test_db
   lighthouse:
     runs-on: ubuntu-latest # operating system your code will run on
     services:

app/general/tests/test_frontend.py

@@ -1,4 +1,5 @@
 from django.contrib.staticfiles.testing import StaticLiveServerTestCase
+from django.test import tag
 from selenium.common import TimeoutException
 from selenium.webdriver.chrome.webdriver import Options, WebDriver
 from selenium.webdriver.common.by import By
@@ -8,6 +9,7 @@
 WAIT_TIMEOUT = 5
 
 
+@tag("selenium")
 class TestFrontend(StaticLiveServerTestCase):
     @classmethod
     def setUpClass(cls):