fix: support setValue on textarea (#764)

Author: mya-ake

Diff for: packages/test-utils/src/wrapper.js

@@ -699,7 +699,7 @@ export default class Wrapper implements BaseWrapper {
           `type="radio" /> element. Use wrapper.setChecked() ` +
           `instead`
       )
-    } else if (tagName === 'INPUT' || tagName === 'textarea') {
+    } else if (tagName === 'INPUT' || tagName === 'TEXTAREA') {
       // $FlowIgnore
       this.element.value = value
       this.trigger('input')

Diff for: test/resources/components/component-with-input.vue

@@ -4,6 +4,7 @@
     <input type="radio" v-model="radioVal" id="radioFoo" value="radioFooResult">
     <input type="radio" v-model="radioVal" id="radioBar" value="radioBarResult">
     <input type="text" v-model="textVal">
+    <textarea v-model="textareaVal"></textarea>
     <select v-model="selectVal">
       <option value="selectA"></option>
       <option value="selectB"></option>
@@ -35,6 +36,7 @@
       return {
         checkboxVal: undefined,
         textVal: undefined,
+        textareaVal: undefined,
         radioVal: undefined,
         selectVal: undefined,
         counter: 0

Diff for: test/specs/wrapper/setValue.spec.js

@@ -2,14 +2,22 @@ import ComponentWithInput from '~resources/components/component-with-input.vue'
 import { describeWithShallowAndMount } from '~resources/utils'
 
 describeWithShallowAndMount('setValue', mountingMethod => {
-  it('sets element value', () => {
+  it('sets element of input value', () => {
     const wrapper = mountingMethod(ComponentWithInput)
     const input = wrapper.find('input[type="text"]')
     input.setValue('foo')
 
     expect(input.element.value).to.equal('foo')
   })
 
+  it('sets element of textarea value', () => {
+    const wrapper = mountingMethod(ComponentWithInput)
+    const textarea = wrapper.find('textarea')
+    textarea.setValue('foo')
+
+    expect(textarea.element.value).to.equal('foo')
+  })
+
   it('updates dom with v-model', () => {
     const wrapper = mountingMethod(ComponentWithInput)
     const input = wrapper.find('input[type="text"]')