feat: install instruction inside web app

tests/test_webapp_redis_cache.py

@@ -3,7 +3,7 @@ from types import SimpleNamespace
 from unittest.mock import patch
 
 import bot.app.web.subscription_webapp  # noqa: F401
-from bot.app.web.webapp import common as common_module
+from bot.app.web.webapp import cache_helpers
 
 
 class WebappRedisCacheInvalidationTests(unittest.IsolatedAsyncioTestCase):
@@ -14,8 +14,8 @@ class WebappRedisCacheInvalidationTests(unittest.IsolatedAsyncioTestCase):
         async def fake_delete(_settings, *keys):
             deleted.extend(keys)
 
-        with patch.object(common_module, "cache_delete", fake_delete):
-            await common_module._invalidate_webapp_user_caches(
+        with patch.object(cache_helpers, "cache_delete", fake_delete):
+            await cache_helpers.invalidate_webapp_user_caches(
                 settings,
                 42,
                 "42",
@@ -33,6 +33,25 @@ class WebappRedisCacheInvalidationTests(unittest.IsolatedAsyncioTestCase):
             ],
         )
 
+    async def test_invalidate_all_webapp_user_payloads_deletes_namespace_patterns(self):
+        settings = SimpleNamespace(REDIS_URL="redis://redis:6379/0", REDIS_KEY_PREFIX="shop")
+        patterns = []
+
+        async def fake_delete_pattern(_settings, pattern):
+            patterns.append(pattern)
+            return 0
+
+        with patch.object(cache_helpers, "cache_delete_pattern", fake_delete_pattern):
+            await cache_helpers.invalidate_all_webapp_user_payloads(settings, include_devices=True)
+
+        self.assertEqual(
+            patterns,
+            [
+                "shop:cache:webapp:me:*",
+                "shop:cache:webapp:devices:*",
+            ],
+        )
+
 
 if __name__ == "__main__":
     unittest.main()