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tests/e2e/test_pwa_versioning.py

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+from urllib.parse import quote
+
+import pytest
+
+from apps.accounts.models import User
+from tests.e2e.pages.auth import AuthenticationPage
+
+
+pytestmark = [pytest.mark.e2e, pytest.mark.pwa, pytest.mark.django_db(transaction=True)]
+PASSWORD = "E2e-safe-password-2026"
+
+
+def test_pwa_registers_versioned_worker_and_matching_cache(live_server, browser_page):
+    customer = User.objects.create_user(
+        username="e2e-pwa-version",
+        mobile="09120009010",
+        password=PASSWORD,
+        account_type=User.AccountType.CUSTOMER,
+    )
+
+    with browser_page(service_workers="allow") as page:
+        AuthenticationPage(page, live_server.url).login_customer(customer, PASSWORD)
+
+        state = page.evaluate(
+            """async () => {
+                const registration = await navigator.serviceWorker.ready;
+                const worker = registration.active || registration.waiting || registration.installing;
+                return {
+                    version: document.documentElement.dataset.staticVersion,
+                    scriptURL: worker && worker.scriptURL,
+                    cacheNames: await caches.keys(),
+                };
+            }"""
+        )
+
+        assert state["version"]
+        assert f"/service-worker.js?v={quote(state['version'])}" in state["scriptURL"]
+        assert f"sales-ticket-{state['version']}" in state["cacheNames"]
+
+        worker_response = page.request.get(state["scriptURL"])
+        assert worker_response.ok
+        assert worker_response.headers["cache-control"] == "no-cache, no-store, must-revalidate"