弱网核销功能

packages/domain/src/index.test.ts

@@ -7,6 +7,9 @@ import {
   allocateBenefitCoupons,
   calcBenefitSummary,
   orderTabToStatuses,
+  classifyRedeemClientError,
+  generateRedeemPendingNo,
+  REDEEM_WEAKNET_FAIL_THRESHOLD,
 } from './index';
 
 describe('calcBenefitAmount', () => {
@@ -120,3 +123,26 @@ describe('calcBenefitSummary', () => {
     });
   });
 });
+
+describe('classifyRedeemClientError', () => {
+  it('treats 5xx and network messages as NETWORK', () => {
+    expect(classifyRedeemClientError({ status: 502 })).toBe('NETWORK');
+    expect(classifyRedeemClientError({ message: 'Failed to fetch' })).toBe('NETWORK');
+    expect(classifyRedeemClientError({ message: '网络超时' })).toBe('NETWORK');
+  });
+
+  it('treats business messages as BUSINESS', () => {
+    expect(classifyRedeemClientError({ status: 400, message: '核销码无效或已过期' })).toBe('BUSINESS');
+    expect(classifyRedeemClientError({ message: '余额不足' })).toBe('BUSINESS');
+  });
+});
+
+describe('generateRedeemPendingNo', () => {
+  it('uses RP prefix', () => {
+    expect(generateRedeemPendingNo().startsWith('RP')).toBe(true);
+  });
+
+  it('exports weaknet threshold of 5', () => {
+    expect(REDEEM_WEAKNET_FAIL_THRESHOLD).toBe(5);
+  });
+});