refine Semi UI vehicle evidence

vehicle-data-platform/apps/web/src/v2/domain/protocols.test.ts

@@ -0,0 +1,16 @@
+import { describe, expect, test } from 'vitest';
+import { protocolDisplayLabel, protocolSourceLabel } from './protocols';
+
+describe('protocol display vocabulary', () => {
+  test('uses one user-facing label for every supported vehicle protocol', () => {
+    expect(protocolDisplayLabel('GB32960')).toBe('GB/T 32960');
+    expect(protocolDisplayLabel('JT808')).toBe('JT/T 808');
+    expect(protocolDisplayLabel('YUTONG_MQTT')).toBe('宇通 MQTT');
+  });
+
+  test('keeps unknown protocols intact and explains qualified sources', () => {
+    expect(protocolDisplayLabel('CUSTOM')).toBe('CUSTOM');
+    expect(protocolSourceLabel('YUTONG_MQTT:canonical')).toBe('宇通 MQTT · canonical');
+    expect(protocolSourceLabel('CUSTOM:gateway')).toBe('CUSTOM:gateway');
+  });
+});