diff --git a/src/components/textarea/index.js b/src/components/textarea/index.js
index 3e3e08000..470c39050 100644
--- a/src/components/textarea/index.js
+++ b/src/components/textarea/index.js
@@ -69,29 +69,35 @@ export default class AtTextarea extends AtComponent {
     onConfirm: PropTypes.func
   }
 
-  handleInput (e) {
-    this.props.onChange(e, ...arguments)
+  constructor () {
+    super(...arguments)
+    if (process.env.NODE_ENV === 'test') {
+      Taro.initPxTransform({ designWidth: 750 })
+    }
+  }
+
+  handleInput () {
+    this.props.onChange(...arguments)
   }
 
-  handleFocus (e) {
-    this.props.onFocus(e, ...arguments)
+  handleFocus () {
+    this.props.onFocus(...arguments)
   }
 
-  handleBlur (e) {
-    this.props.onBlur(e, ...arguments)
+  handleBlur () {
+    this.props.onBlur(...arguments)
   }
 
-  handleConfirm (e) {
-    this.props.onConfirm(e, ...arguments)
+  handleConfirm () {
+    this.props.onConfirm(...arguments)
   }
 
-  handleLinechange (e) {
-    this.props.onLinechange(e, ...arguments)
+  handleLinechange () {
+    this.props.onLinechange(...arguments)
   }
 
   render () {
     const {
-      isTest,
       customStyle,
       className,
       value,
@@ -112,9 +118,6 @@ export default class AtTextarea extends AtComponent {
       height
     } = this.props
 
-    if (isTest) {
-      Taro.initPxTransform({ designWidth: 750 })
-    }
     let actualMaxlength = maxlength
     if (!textOverflowForbidden) {
       actualMaxlength += 500
diff --git a/src/components/textarea/index.test.js b/src/components/textarea/index.test.js
index 41439ecc8..3f0e25a30 100644
--- a/src/components/textarea/index.test.js
+++ b/src/components/textarea/index.test.js
@@ -5,42 +5,42 @@ import AtTextarea from '../../../.temp/components/textarea/index'
 
 describe('AtTextarea Snap', () => {
   it('render initial AtTextarea', () => {
-    const componet = renderToString(<AtTextarea isTest />)
+    const componet = renderToString(<AtTextarea />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtTextarea -- props customStyle', () => {
-    const componet = renderToString(<AtTextarea isTest customStyle='color:red;' />)
+    const componet = renderToString(<AtTextarea customStyle='color:red;' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtTextarea -- props className', () => {
-    const componet = renderToString(<AtTextarea isTest className='test' />)
+    const componet = renderToString(<AtTextarea className='test' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtTextarea -- props value', () => {
-    const componet = renderToString(<AtTextarea isTest value='test' />)
+    const componet = renderToString(<AtTextarea value='test' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtTextarea -- props maxlength', () => {
-    const componet = renderToString(<AtTextarea isTest maxlength='300' />)
+    const componet = renderToString(<AtTextarea maxlength='300' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtTextarea -- props maxlength', () => {
-    const componet = renderToString(<AtTextarea isTest placeholder='test' />)
+    const componet = renderToString(<AtTextarea placeholder='test' />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtTextarea -- props maxlength', () => {
-    const componet = renderToString(<AtTextarea isTest count={3000} />)
+    const componet = renderToString(<AtTextarea count={3000} />)
     expect(componet).toMatchSnapshot()
   })
 
   it('render AtTextarea -- props maxlength', () => {
-    const componet = renderToString(<AtTextarea isTest height={3000} />)
+    const componet = renderToString(<AtTextarea height={3000} />)
     expect(componet).toMatchSnapshot()
   })
 })