fix(CouponCell): discounted value (#7196)

* fix(CouponCell): discounted value

* feat(CouponCell): add unit test

* feat(CouponCell): add unit test

src/coupon-cell/index.tsx

@@ -30,9 +30,7 @@ function formatValue(props: CouponCellProps) {
 
     if (isDef(coupon.value)) {
       ({ value } = coupon);
-    }
+    } else if (isDef(coupon.denominations)) {
-
-    if (isDef(coupon.denominations)) {
       value = coupon.denominations;
     }
 

src/coupon-list/test/__snapshots__/index.spec.js.snap

@@ -54,6 +54,15 @@ exports[`render coupon cell with coupon 1`] = `
 </div>
 `;
 
+
+exports[`render coupon cell with zero discount 1`] = `
+<div role="button" tabindex="0" class="van-cell van-cell--clickable van-coupon-cell">
+  <div class="van-cell__title"><span>优惠券</span></div>
+  <div class="van-cell__value van-coupon-cell__value van-coupon-cell__value--selected"><span>-¥ 0.00</span></div><i class="van-icon van-icon-arrow van-cell__right-icon">
+    <!----></i>
+</div>
+`;
+
 exports[`render coupon list 1`] = `
 <div class="van-coupon-list">
   <div class="van-coupon-list__exchange-bar">

src/coupon-list/test/index.spec.js

@@ -26,6 +26,12 @@ const coupon3 = {
   denominations: 123,
 };
 
+const coupon4 = {
+  ...coupon,
+  startAt: 1600327871,
+  endAt: 1700327871,
+};
+
 const emptyCoupon = {
   id: 0,
   discount: 0,
@@ -162,3 +168,13 @@ test('render coupon cell with coupon', () => {
   });
   expect(wrapper).toMatchSnapshot();
 });
+
+test('render coupon cell with zero discount', () => {
+  const wrapper = mount(CouponCell, {
+    propsData: {
+      coupons: [{ ...coupon4, value: 0, denominations: 150 }],
+      chosenCoupon: 0,
+    },
+  });
+  expect(wrapper).toMatchSnapshot();
+});