old_contents: import React from 'react';
  import TestUtils from 'react-dom/test-utils';
  import expect from 'expect.js';
  
  import Notification from '../';
  
  require('../assets/index.less');
  
  describe('rc-notification', () => {
    it('works', (done) => {
      const notification = Notification.newInstance();
      notification.notice({
        content: <p className="test">1</p>,
        duration: 0.1,
      });
      expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
        'test').length).to.be(1);
      setTimeout(() => {
        expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
          'test').length).to.be(0);
        notification.destroy();
        done();
      }, 1000);
    });
  
    it('works with multi instance', (done) => {
      const notification = Notification.newInstance();
      notification.notice({
        content: <p className="test">1</p>,
        duration: 0.1,
      });
      notification.notice({
        content: <p className="test">2</p>,
        duration: 0.5,
      });
      expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
        'test').length).to.be(2);
      setTimeout(() => {
        expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
          'test').length).to.be(1);
        done();
      }, 1000);
      setTimeout(() => {
        expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
          'test').length).to.be(0);
        notification.destroy();
        done();
      }, 5000);
    });
  
    it('destroy works', () => {
      const notification = Notification.newInstance();
      notification.notice({
        content: <p id="test" className="test">222222</p>,
        duration: 0.1,
      });
      expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
        'test').length).to.be(1);
      notification.destroy();
      expect(document.getElementById('test')).not.to.be.ok();
    });
  
    it('getContainer works', () => {
      const notification = Notification.newInstance({
        getContainer: () => {
          const div = document.createElement('div');
          div.className = 'rc';
          document.body.appendChild(div);
          return div;
        },
      });
      notification.notice({
        content: <p id="test" className="test">222222</p>,
        duration: 1,
      });
      expect(document.querySelectorAll('.rc').length).to.be(1);
    });
  });
  
new_contents: import React from 'react';
  import TestUtils from 'react-dom/test-utils';
  import expect from 'expect.js';
  
  import Notification from '../';
  
  require('../assets/index.less');
  
  describe('rc-notification', () => {
    it('works', (done) => {
      const notification = Notification.newInstance();
      notification.notice({
        content: <p className="test">1</p>,
        duration: 0.1,
      });
      expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
        'test').length).to.be(1);
      setTimeout(() => {
        expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
          'test').length).to.be(0);
        notification.destroy();
        done();
      }, 1000);
    });
  
    it('works with multi instance', (done) => {
      const notification = Notification.newInstance();
      notification.notice({
        content: <p className="test">1</p>,
        duration: 0.1,
      });
      notification.notice({
        content: <p className="test">2</p>,
        duration: 0.1,
      });
      expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
        'test').length).to.be(2);
      setTimeout(() => {
        expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
          'test').length).to.be(0);
        notification.destroy();
        done();
      }, 1000);
    });
  
    it('destroy works', () => {
      const notification = Notification.newInstance();
      notification.notice({
        content: <p id="test" className="test">222222</p>,
        duration: 0.1,
      });
      expect(TestUtils.scryRenderedDOMComponentsWithClass(notification.component,
        'test').length).to.be(1);
      notification.destroy();
      expect(document.getElementById('test')).not.to.be.ok();
    });
  
    it('getContainer works', () => {
      const notification = Notification.newInstance({
        getContainer: () => {
          const div = document.createElement('div');
          div.className = 'rc';
          document.body.appendChild(div);
          return div;
        },
      });
      notification.notice({
        content: <p id="test" className="test">222222</p>,
        duration: 1,
      });
      expect(document.querySelectorAll('.rc').length).to.be(1);
    });
  });
  
subject: fix test case