[new feature] GoodsActionIcon: add icon slot (#3705)

src/goods-action/test/__snapshots__/index.spec.js.snap

@@ -9,3 +9,9 @@ exports[`Icon render default slot 1`] = `
   </div>Default Content
 </div>
 `;
+
+exports[`Icon render icon slot 1`] = `
+<div role="button" tabindex="0" class="van-goods-action-icon van-hairline">
+  <div class="van-goods-action-icon__icon">Custom Icon</div>Text
+</div>
+`;

src/goods-action/test/index.spec.js

@@ -49,3 +49,18 @@ test('Icon render default slot', () => {
 
   expect(wrapper).toMatchSnapshot();
 });
+
+test('Icon render icon slot', () => {
+  const wrapper = mount({
+    render(h) {
+      return h(Icon, {
+        scopedSlots: {
+          default: () => 'Text',
+          icon: () => 'Custom Icon'
+        }
+      });
+    }
+  });
+
+  expect(wrapper).toMatchSnapshot();
+});