feat(Tab): add info prop (#5274)

src/tab/test/__snapshots__/index.spec.js.snap

@@ -114,6 +114,20 @@ exports[`dot prop 1`] = `
 </div>
 `;
 
+exports[`info prop 1`] = `
+<div class="van-tabs van-tabs--line">
+  <div class="van-tabs__wrap van-hairline--top-bottom">
+    <div role="tablist" class="van-tabs__nav van-tabs__nav--line">
+      <div role="tab" aria-selected="true" class="van-tab van-tab--active van-ellipsis"><span class="van-tab__text"><div class="van-info">10</div></span></div>
+      <div class="van-tabs__line"></div>
+    </div>
+  </div>
+  <div class="van-tabs__content">
+    <div role="tabpanel" class="van-tab__pane">Text</div>
+  </div>
+</div>
+`;
+
 exports[`lazy render 1`] = `
 <div class="van-tabs van-tabs--line">
   <div>

src/tab/test/index.spec.js

@@ -251,3 +251,15 @@ test('dot prop', () => {
 
   expect(wrapper).toMatchSnapshot();
 });
+
+test('info prop', () => {
+  const wrapper = mount({
+    template: `
+      <van-tabs>
+        <van-tab info="10">Text</van-tab>
+      </van-tabs>
+    `
+  });
+
+  expect(wrapper).toMatchSnapshot();
+});