import Button from '../index'
import Icon from '../../icon'
import { mount } from 'avoriaz'
import Vue from 'vue'
import { matchSnapshot } from "chai-karma-snapshot";
import { use, expect, assert } from "chai";
use(matchSnapshot);

describe('Button', () => {
  it('create primary button', () => {
    const wrapper = mount({
      render (h) {
        return <Button type='primary'>按钮</Button>
      },
    })
    expect(wrapper.html()).to.matchSnapshot();
    expect(wrapper.hasClass('ant-btn-primary')).to.equal(true)
  })
  it('renders Chinese characters correctly', (done) => {
    const wrapper = mount(
      {
        render (h) {
          return <Button>按钮</Button>
        },
      }
    )
    expect(wrapper.text()).to.equal('按 钮')

    const wrapper1 = mount(
      {
        render (h) {
          return <Button icon='search'>按钮</Button>
        },
      }
    )
    expect(wrapper1.text()).to.equal('按钮')

    const wrapper2 = mount(
      {
        render (h) {
          return <Button><Icon type="search" />按钮</Button>
        },
      }
    )
    expect(wrapper2.text()).to.equal('按钮')

    const wrapper3 = mount(
      {
        render (h) {
          return <Button><span>按钮</span></Button>
        },
      }
    )
    Vue.nextTick(() => {
      expect(wrapper3.find('.ant-btn')[0].hasClass('ant-btn-two-chinese-chars')).to.equal(true);
      done()
    })
  })
  it('should change loading state instantly by default', () => {
    const DefaultButton = {
      data(){
        return {
          loading: false,
        }
      },
      methods: {
        enterLoading () {
          this.loading = true
        }
      },
      
      render() {
        return <Button loading={this.loading} onClick={this.enterLoading}>Button</Button>;
      }
    }
    const wrapper = mount(DefaultButton)
    wrapper.trigger('click');
    Vue.nextTick(() => {
      expect(wrapper.find('.ant-btn-loading').length).to.equal(1);
    })
  });

  it('should change loading state with delay', () => {
    const DefaultButton = {
      data(){
        return {
          loading: false,
        }
      },
      methods: {
        enterLoading () {
          this.loading = { delay: 1000 }
        }
      },
      
      render() {
        return <Button loading={this.loading} onClick={this.enterLoading}>Button</Button>;
      }
    }
    const wrapper = mount(DefaultButton)
    wrapper.trigger('click');
    Vue.nextTick(() => {
      expect(wrapper.hasClass('ant-btn-loading').length).to.equal(false);
    })
  });

  it('should support link button', () => {
    const wrapper = mount({
      render (h) {
        return <Button target="_blank" href="http://ant.design">link button</Button>
      },
    })
    expect(wrapper.html()).to.matchSnapshot();
  })

  it('fixbug renders {0} , 0 and {false}', () => {
    const wrapper = mount({
      render (h) {
        return <Button>{0}</Button>
      },
    })
    expect(wrapper.html()).to.matchSnapshot();

    const wrapper1 = mount({
      render (h) {
        return <Button>0</Button>
      },
    })
    expect(wrapper1.html()).to.matchSnapshot();

    const wrapper2 = mount({
      render (h) {
        return <Button>{false}</Button>
      },
    })
    expect(wrapper2.html()).to.matchSnapshot();

  })

})