diff --git a/tests/order-enhancements-v1775.mjs b/tests/order-enhancements-v1775.mjs
new file mode 100644
index 0000000..30734c1
--- /dev/null
+++ b/tests/order-enhancements-v1775.mjs
@@ -0,0 +1,17 @@
+import fs from 'node:fs';
+const src=fs.readFileSync('public/core/order-enhancements-v1775.js','utf8');
+const perf=fs.readFileSync('public/core/performance.js','utf8');
+const checks=[
+  ['line comments persisted',/line\.comment/],
+  ['allergy/change comment placeholder',/Аллергия, убрать ингредиент/],
+  ['day reminder',/data-reminder="day"/],
+  ['hour reminder',/data-reminder="hour"/],
+  ['catalog search by number/name',/Поиск по № бокса или названию/],
+  ['delivery included in total',/positions-discount-promo\+delivery/],
+  ['delivery shown separately',/Доставка<\/span>/],
+  ['grand total shown',/Итого<\/span>/],
+  ['notification support',/new Notification/],
+  ['module loaded',/order-enhancements-v1775\.js/],
+];
+for(const [name,re] of checks){const target=name==='module loaded'?perf:src;if(!re.test(target))throw new Error(`Missing ${name}`)}
+console.log('order-enhancements-v1775: ok');