测试Vue.js（^ 2.5。*）组件时如何处理有关prop变异的警告消息

Question

测试用Vue utils挂载的组件时遇到以下错误消息：

Avoid mutating a prop directly since the value will be overwritten 
whenever the parent component re-renders. 
Instead, use a data or computed property based on the prop's value. Prop being mutated: <prop name>

Answer 1

在安装要测试的组件时，为防止错误消息在控制台中显示，请将sync选项的false传递给mount函数。另请参见https://vue-test-utils.vuejs.org/api/options.html#sync