v3计划内容上传

packages/domain/src/index.test.ts

@@ -31,12 +31,25 @@ describe('validateMinPurchase', () => {
 });
 
 describe('validateRedeemAmount', () => {
-  it('rejects over balance or non-positive', () => {
+  it('rejects over balance or non-positive amount', () => {
     expect(validateRedeemAmount(100, 50).ok).toBe(true);
     expect(validateRedeemAmount(100, 100).ok).toBe(true);
     expect(validateRedeemAmount(50, 60).ok).toBe(false);
     expect(validateRedeemAmount(100, 0).ok).toBe(false);
   });
+
+  it('allows direct redeem up to total balance without a document cap', () => {
+    expect(validateRedeemAmount(700, 650).ok).toBe(true);
+    expect(validateRedeemAmount(700, 701).ok).toBe(false);
+  });
+
+  it('caps document-based redeem by document amount', () => {
+    expect(validateRedeemAmount(700, 300, 300).ok).toBe(true);
+    expect(validateRedeemAmount(700, 301, 300)).toEqual({
+      ok: false,
+      message: '核销金额不能超过该核销单可用金额',
+    });
+  });
 });
 
 describe('calcRedeemSettleAmount', () => {
@@ -65,6 +78,13 @@ describe('allocateBenefitCoupons', () => {
   it('rejects when total balance insufficient', () => {
     expect(allocateBenefitCoupons(coupons, 800).ok).toBe(false);
   });
+
+  it('rejects when a document cap is lower than requested amount', () => {
+    expect(allocateBenefitCoupons(coupons, 301, 300)).toEqual({
+      ok: false,
+      message: '核销金额不能超过该核销单可用金额',
+    });
+  });
 });
 
 describe('calcBenefitSummary', () => {