feat: pwa

tracker/tests.py

@@ -229,3 +229,25 @@ class TodayPageTests(TrackerTestCase):
         response = self.client.get(reverse("tracker:today"))
         self.assertContains(response, "<polyline")
         self.assertContains(response, "180.0 bpm")  # average
+
+
+class PwaTests(TrackerTestCase):
+    def test_the_service_worker_is_served_from_the_root(self):
+        # Scope: under /static/ it could not control the /admin/ pages it caches.
+        response = self.client.get("/sw.js")
+
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response["Content-Type"], "application/javascript")
+
+    def test_the_page_links_the_manifest_and_registers_the_worker(self):
+        self.client.force_login(self.user)
+        response = self.client.get(reverse("tracker:today"))
+
+        self.assertContains(response, 'rel="manifest"')
+        self.assertContains(response, "serviceWorker.register")
+
+    def test_the_login_page_is_installable_too(self):
+        # The app opens on the login screen when the session lapses.
+        response = self.client.get("/admin/login/")
+
+        self.assertContains(response, 'rel="manifest"')