diff --git a/src/components/rate/index.js b/src/components/rate/index.js
index 1187b0989..a51da55ff 100644
--- a/src/components/rate/index.js
+++ b/src/components/rate/index.js
@@ -38,13 +38,19 @@ export default class AtRate extends AtComponent {
     onChange: PropTypes.func
   }
 
-  handleClick (i) {
-    this.props.onChange(i + 1, ...arguments)
+  constructor () {
+    super(...arguments)
+    if (process.env.NODE_ENV === 'test') {
+      Taro.initPxTransform({ designWidth: 750 })
+    }
+  }
+
+  handleClick () {
+    this.props.onChange(...arguments)
   }
 
   render () {
     const {
-      isTest,
       customStyle,
       className,
       value,
@@ -53,9 +59,6 @@ export default class AtRate extends AtComponent {
       margin
     } = this.props
 
-    if (isTest) {
-      Taro.initPxTransform({ designWidth: 750 })
-    }
     const iconStyle = {
       marginRight: Taro.pxTransform(margin)
     }
@@ -83,7 +86,7 @@ export default class AtRate extends AtComponent {
             className={cls}
             key={i}
             style={iconStyle}
-            onClick={this.handleClick.bind(this, i)}
+            onClick={this.handleClick.bind(this, i + 1)}
           >
             <AtIcon value='star-2' size={size} />
             <View className='at-rate__left'>
diff --git a/src/components/rate/index.test.js b/src/components/rate/index.test.js
index f2f5c8180..9f30653f2 100644
--- a/src/components/rate/index.test.js
+++ b/src/components/rate/index.test.js
@@ -10,32 +10,32 @@ describe('AtRate Snap', () => {
   })
 
   it('render AtRate -- props customStyle', () => {
-    const componet = renderToString(<AtRate isTest customStyle='color:red;' />)
+    const componet = renderToString(<AtRate customStyle='color:red;' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtRate -- props className', () => {
-    const componet = renderToString(<AtRate isTest className='test' />)
+    const componet = renderToString(<AtRate className='test' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtRate -- props size', () => {
-    const componet = renderToString(<AtRate isTest size='10' />)
+    const componet = renderToString(<AtRate size='10' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtRate -- props value', () => {
-    const componet = renderToString(<AtRate isTest value='2' />)
+    const componet = renderToString(<AtRate value='2' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtRate -- props max', () => {
-    const componet = renderToString(<AtRate isTest max='10' />)
+    const componet = renderToString(<AtRate max='10' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtRate -- props margin', () => {
-    const componet = renderToString(<AtRate isTest margin='10' />)
+    const componet = renderToString(<AtRate margin='10' />)
     expect(componet).toMatchSnapshot()
   })
 })