ant-design/components/slider/__tests__/index.test.js

import React from 'react';
import { render, mount } from 'enzyme';
import Slider from '..';
import ConfigProvider from '../../config-provider';
import mountTest from '../../../tests/shared/mountTest';
import rtlTest from '../../../tests/shared/rtlTest';
import focusTest from '../../../tests/shared/focusTest';
import SliderTooltip from '../SliderTooltip';
import { sleep } from '../../../tests/utils';

describe('Slider', () => {
  mountTest(Slider);
  rtlTest(Slider);
  focusTest(Slider, { testLib: true });

  it('should show tooltip when hovering slider handler', () => {
    const wrapper = mount(<Slider defaultValue={30} />);
    wrapper.find('.ant-slider-handle').at(0).simulate('mouseEnter');
    expect(render(wrapper.find('Trigger').instance().getComponent())).toMatchSnapshot();
    wrapper.find('.ant-slider-handle').at(0).simulate('mouseLeave');
    expect(render(wrapper.find('Trigger').instance().getComponent())).toMatchSnapshot();
  });

  it('should show correct placement tooltip when set tooltipPlacement', () => {
    const wrapper = mount(<Slider vertical defaultValue={30} tooltipPlacement="left" />);
    wrapper.find('.ant-slider-handle').at(0).simulate('mouseEnter');
    expect(render(wrapper.find('Trigger').instance().getComponent())).toMatchSnapshot();
    wrapper.find('.ant-slider-handle').at(0).simulate('mouseLeave');
    expect(render(wrapper.find('Trigger').instance().getComponent())).toMatchSnapshot();
  });

  it('when tooltipVisible is true, tooltip should show always, or should never show', () => {
    let wrapper = mount(<Slider defaultValue={30} tooltipVisible />);
    expect(wrapper.find('.ant-tooltip-content').at(0).hasClass('ant-tooltip-hidden')).toBe(false);
    wrapper.find('.ant-slider-handle').at(0).simulate('mouseEnter');
    expect(wrapper.find('.ant-tooltip-content').at(0).hasClass('ant-tooltip-hidden')).toBe(false);
    wrapper.find('.ant-slider-handle').at(0).simulate('click');
    expect(wrapper.find('.ant-tooltip-content').at(0).hasClass('ant-tooltip-hidden')).toBe(false);
    wrapper = mount(<Slider defaultValue={30} tooltipVisible={false} />);
    expect(wrapper.find('.ant-tooltip-content').length).toBe(0);
  });

  it('when step is null, thumb can only be slided to the specific mark', () => {
    const intentionallyWrongValue = 40;
    const marks = {
      0: '0',
      48: '48',
      100: '100',
    };

    const wrapper = mount(
      <Slider marks={marks} defaultValue={intentionallyWrongValue} step={null} tooltipVisible />,
    );
    expect(wrapper.find('.ant-slider-handle').get(0).props).toHaveProperty('aria-valuenow', 48);
  });

  it('when step is not null, thumb can be slided to the multiples of step', () => {
    const marks = {
      0: '0',
      48: '48',
      100: '100',
    };

    const wrapper = mount(<Slider marks={marks} defaultValue={49} step={1} tooltipVisible />);
    expect(wrapper.find('.ant-slider-handle').get(0).props).toHaveProperty('aria-valuenow', 49);
  });

  it('when step is undefined, thumb can be slided to the multiples of step', () => {
    const marks = {
      0: '0',
      48: '48',
      100: '100',
    };

    const wrapper = mount(
      <Slider marks={marks} defaultValue={49} step={undefined} tooltipVisible />,
    );
    expect(wrapper.find('.ant-slider-handle').get(0).props).toHaveProperty('aria-valuenow', 49);
  });

  it('should render in RTL direction', () => {
    const wrapper = mount(
      <ConfigProvider direction="rtl">
        <Slider defaultValue={30} tooltipVisible />
      </ConfigProvider>,
    );
    expect(render(wrapper)).toMatchSnapshot();
  });

  it('should keepAlign by calling forcePopupAlign', async () => {
    let ref;
    mount(
      <SliderTooltip
        title="30"
        visible
        ref={node => {
          ref = node;
        }}
      />,
    );
    ref.forcePopupAlign = jest.fn();
    await sleep(20);
    expect(ref.forcePopupAlign).toHaveBeenCalled();
  });

  it('tipFormatter should not crash with undefined value', () => {
    [undefined, null].forEach(value => {
      mount(<Slider value={value} tooltipVisible />);
    });
  });
  it('step should not crash with undefined value', () => {
    [undefined, null].forEach(value => {
      mount(<Slider step={value} tooltipVisible />);
    });
  });
});