Version

1.0.0-beta.12

Reproduction link

https://jsbin.com/nopulunamo/3/edit?html,console,output

Steps to reproduce

1. create a wrapper by method mount , and pass listeners param

   const wrapper = mount(myComponent, {
      listeners: {
        change: someFunction,
      },
    });
   

What is expected?

 wrapper.vm.$listerners  = {
    change: function invoker(){}
 }

 invoker.fns  ===  someFunction

What is actually happening?

wrapper.vm.$listerners.change === someFunction