test(footer): add unit test

src/footer/README.md

@@ -5,6 +5,7 @@ spline: data
 isComponent: true
 ---
 
+<span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20lines-100%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20functions-0%25-red" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20statements-100%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20branches-0%25-red" /></span>
 ## 引入
 
 全局引入，在 miniprogram 根目录下的`app.json`中配置，局部引入，在需要引入的页面或组件的`index.json`中配置。

src/footer/__test__/__snapshots__/index.test.js.snap

@@ -0,0 +1,17 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Footer :base 1`] = `
+<main>
+  <main>
+    <wx-view
+      class="t-footer"
+    >
+      <wx-view
+        class="t-footer__copyright-info"
+      >
+
+      </wx-view>
+    </wx-view>
+  </main>
+</main>
+`;

src/footer/__test__/index.test.js

@@ -0,0 +1,21 @@
+import simulate from 'miniprogram-simulate';
+import path from 'path';
+
+describe('Footer', () => {
+  const footer = simulate.load(path.resolve(__dirname, `../footer`), {
+    less: true,
+  });
+
+  it(':base', () => {
+    const id = simulate.load({
+      template: `<t-footer></t-footer>`,
+      usingComponents: {
+        't-footer': footer,
+      },
+    });
+    const comp = simulate.render(id);
+    comp.attach(document.createElement('parent-wrapper'));
+
+    expect(comp.toJSON()).toMatchSnapshot();
+  });
+});