hasClass(className)

Assert every Wrapper in WrapperArray DOM node has class containing className.

Arguments:
- {string} className
Returns: {boolean}
Example:

import { mount } from 'vue-test-utils'
import { expect } from 'chai'
import Foo from './Foo.vue'

const wrapper = mount(Foo)
const divArray = wrapper.findAll('div')
expect(divArray.hasClass('bar')).toBe(true)