Add GitHub Actions workflow for Django CI

.github/workflows/test.yml

@@ -0,0 +1,75 @@
+name: Run Tests CI
+
+on:
+    push:
+        branches: [ master ]
+    pull_request:
+        branches: [ master ]
+
+jobs:
+    test:
+        runs-on: ubuntu-22.04
+
+        services:
+          redis:
+            image: redis
+            ports:
+              - 6379:6379
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v3
+
+            - name: Install Scilab, R, firefox and xvfb
+              run: |
+                sudo apt-get update
+                sudo apt-get update -qq
+                sudo apt-get install -y scilab r-base xvfb firefox
+                sudo apt-get install -y r-base
+
+            - name: Start xvfb
+              run: |
+                Xvfb :99 -screen 0 1024x768x24 &
+                echo "DISPLAY=:99" >> $GITHUB_ENV
+
+            - name: Set up Python packages
+              run: |
+                pip install -r requirements/requirements-common.txt
+                pip install codecov
+                pip install -e .
+
+            - name: Run Django migrations
+              run: |
+                python manage.py makemigrations notifications_plugin
+                python manage.py makemigrations stats
+                python manage.py makemigrations
+                python manage.py migrate auth
+                python manage.py migrate
+
+            - name: Run tests with coverage and Celery
+              run: |
+                coverage erase
+                celery multi start 1 -A online_test worker -B
+                coverage run -p manage.py test -v 2 yaksh
+                coverage run -p manage.py test -v 2 stats
+                coverage run -p manage.py test -v 2 grades
+                coverage run -p manage.py test -v 2 yaksh.live_server_tests.load_test
+                coverage run -p manage.py test -v 2 api
+                celery multi stop 1
+                find . -type f -name "*.pid" -exec rm -f {} \;
+
+
+            - name: Upload coverage to Codecov
+              run: |
+                coverage combine
+                coverage report
+                codecov
+
+            - name: Generate HTML coverage report
+              run: coverage html
+
+            - name: Upload HTML coverage report
+              uses: actions/upload-artifact@v4
+              with:
+                name: htmlcov
+                path: htmlcov/