[Improvement] Rebuild test system (#1051)

packages/badge/test/__snapshots__/index.spec.js.snap

@@ -0,0 +1,26 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`renders badge correctly 1`] = `
+<div>
+  <div>
+    <div class="van-hairline--top-bottom van-badge-group">
+      <a class="van-badge van-badge--select van-hairline">
+        <!---->
+        标签名称
+      </a>
+      <a class="van-badge van-hairline">
+        <div class="van-badge__info">8</div>
+        标签名称
+      </a>
+      <a class="van-badge van-hairline">
+        <div class="van-badge__info">99</div>
+        标签名称
+      </a>
+      <a class="van-badge van-hairline">
+        <div class="van-badge__info">199</div>
+        标签名称
+      </a>
+    </div>
+  </div>
+</div>
+`;

packages/badge/test/index.spec.js

@@ -0,0 +1,27 @@
+import { mount } from '@vue/test-utils';
+import Badge from '../';
+import BadgeGroup from '../../badge-group';
+import demoTest from '../../../test/demo-test';
+
+demoTest(Badge);
+
+test('click', () => {
+  const onClick = jest.fn();
+  const wrapper = mount({
+    template: `
+      <badge-group>
+        <badge @click="onClick">Text</badge>
+      </badge-group>
+    `,
+    components: {
+      Badge,
+      BadgeGroup
+    },
+    methods: {
+      onClick
+    }
+  });
+
+  wrapper.find('.van-badge').trigger('click');
+  expect(onClick.mock.calls[0][0]).toBe(0);
+});