ant-design/components/tree/__tests__/directory.test.js

import React from 'react';
import { mount, render } from 'enzyme';
import Tree from '../index';

const { DirectoryTree, TreeNode } = Tree;

describe('Directory Tree', () => {
  beforeAll(() => {
    jest.useFakeTimers();
  });

  afterAll(() => {
    jest.useRealTimers();
  });

  function createTree(props) {
    return (
      <DirectoryTree {...props}>
        <TreeNode key="0-0">
          <TreeNode key="0-0-0" />
          <TreeNode key="0-0-1" />
        </TreeNode>
        <TreeNode key="0-1">
          <TreeNode key="0-1-0" />
          <TreeNode key="0-1-1" />
        </TreeNode>
      </DirectoryTree>
    );
  }

  describe('expand', () => {
    it('click', () => {
      const wrapper = mount(createTree());

      wrapper.find(TreeNode).find('.ant-tree-node-content-wrapper').at(0).simulate('click');
      expect(wrapper.render()).toMatchSnapshot();
      jest.runAllTimers();
      wrapper.find(TreeNode).find('.ant-tree-node-content-wrapper').at(0).simulate('click');
      expect(wrapper.render()).toMatchSnapshot();
    });

    it('double click', () => {
      const wrapper = mount(createTree({ expandAction: 'doubleClick' }));

      wrapper.find(TreeNode).find('.ant-tree-node-content-wrapper').at(0).simulate('doubleClick');
      expect(wrapper.render()).toMatchSnapshot();
      jest.runAllTimers();
      wrapper.find(TreeNode).find('.ant-tree-node-content-wrapper').at(0).simulate('doubleClick');
      expect(wrapper.render()).toMatchSnapshot();
    });

    describe('with state control', () => {
      class StateDirTree extends React.Component {
        state = {
          expandedKeys: [],
        };

        onExpand = (expandedKeys) => {
          this.setState({ expandedKeys });
        };

        render() {
          const { expandedKeys } = this.state;

          return (
            <DirectoryTree expandedKeys={expandedKeys} onExpand={this.onExpand} {...this.props}>
              <TreeNode key="0-0" title="parent">
                <TreeNode key="0-0-0" title="children" />
              </TreeNode>
            </DirectoryTree>
          );
        }
      }

      ['click', 'doubleClick'].forEach((action) => {
        it(action, () => {
          const wrapper = mount(
            <StateDirTree expandAction={action} />
          );

          wrapper.find(TreeNode).find('.ant-tree-node-content-wrapper').at(0).simulate(action);
          jest.runAllTimers();
          expect(wrapper.render()).toMatchSnapshot();
        });
      });
    });
  });

  it('defaultExpandAll', () => {
    const wrapper = render(createTree({ defaultExpandAll: true }));
    expect(wrapper).toMatchSnapshot();
  });

  it('defaultExpandParent', () => {
    const wrapper = render(createTree({ defaultExpandParent: true }));
    expect(wrapper).toMatchSnapshot();
  });

  it('expandedKeys update', () => {
    const wrapper = mount(createTree());
    wrapper.setProps({ expandedKeys: ['0-1'] });
    expect(wrapper.render()).toMatchSnapshot();
  });

  it('selectedKeys update', () => {
    const wrapper = mount(createTree({ defaultExpandAll: true }));
    wrapper.setProps({ selectedKeys: ['0-1-0'] });
    expect(wrapper.render()).toMatchSnapshot();
  });

  it('group select', () => {
    let nativeEventProto = null;
    const wrapper = mount(createTree({
      defaultExpandAll: true,
      expandAction: 'doubleClick',
      multiple: true,
      onClick: (e) => {
        nativeEventProto = Object.getPrototypeOf(e.nativeEvent);
      },
    }));

    wrapper.find(TreeNode).find('.ant-tree-node-content-wrapper').at(0).simulate('click');

    // React not simulate full of NativeEvent. Hook it.
    // Ref: https://github.com/facebook/react/blob/master/packages/react-dom/src/test-utils/ReactTestUtils.js#L360
    nativeEventProto.ctrlKey = true;

    wrapper.find(TreeNode).find('.ant-tree-node-content-wrapper').at(1).simulate('click');
    expect(wrapper.render()).toMatchSnapshot();

    delete nativeEventProto.ctrlKey;
    nativeEventProto.shiftKey = true;

    wrapper.find(TreeNode).find('.ant-tree-node-content-wrapper').at(4).simulate('click');
    expect(wrapper.render()).toMatchSnapshot();

    delete nativeEventProto.shiftKey;
  });
});