diff --git a/src/fab/README.md b/src/fab/README.md
index 679933664..0ba9127ce 100644
--- a/src/fab/README.md
+++ b/src/fab/README.md
@@ -5,6 +5,7 @@ spline: form
 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-100%25-blue" /></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-100%25-blue" /></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。
diff --git a/src/fab/__test__/index.test.js b/src/fab/__test__/index.test.js
new file mode 100644
index 000000000..80bb1c8a1
--- /dev/null
+++ b/src/fab/__test__/index.test.js
@@ -0,0 +1,50 @@
+import simulate from 'miniprogram-simulate';
+import path from 'path';
+
+describe('fab', () => {
+  const fab = simulate.load(path.resolve(__dirname, `../fab`), 't-fab', {
+    less: true,
+    rootPath: path.resolve(__dirname, '../../'),
+  });
+  it(`fab :base`, async () => {
+    const id = simulate.load({
+      template: `<t-fab class="fab" text="{{text}}"></fab>`,
+      usingComponents: {
+        't-fab': fab,
+      },
+      data: {
+        text: 'base',
+      },
+    });
+    const comp = simulate.render(id);
+    comp.attach(document.createElement('parent-wrapper'));
+
+    const $content = comp.querySelector('.fab >>> .t-button__content');
+
+    expect($content.dom.textContent).toBe('base');
+
+    comp.setData({ text: '' });
+
+    expect($content.dom.textContent).toBe('');
+  });
+
+  it(`fab :event`, async () => {
+    const fn = jest.fn();
+    const id = simulate.load({
+      template: `<t-fab class="fab" bind:click="handleClick"></fab>`,
+      methods: {
+        handleClick: fn,
+      },
+      usingComponents: {
+        't-fab': fab,
+      },
+    });
+    const comp = simulate.render(id);
+    comp.attach(document.createElement('parent-wrapper'));
+
+    comp.querySelector('.fab >>> .t-button').dispatchEvent('tap');
+    await simulate.sleep(10);
+
+    expect(fn).toHaveBeenCalled();
+  });
+});