ASHEBShop-h5/node_modules/react-virtualized/dist/es/CellMeasurer/CellMeasurer.jest.js

import _Object$getOwnPropertyDescriptor from 'babel-runtime/core-js/object/get-own-property-descriptor';
/* global Element */

import React from 'react';
import { findDOMNode } from 'react-dom';
import { render } from '../TestUtils';
import CellMeasurer from './CellMeasurer';
import CellMeasurerCache, { DEFAULT_HEIGHT, DEFAULT_WIDTH } from './CellMeasurerCache';

// Accounts for the fact that JSDom doesn't support measurements.
function mockClientWidthAndHeight(_ref) {
  var height = _ref.height,
      width = _ref.width;

  Object.defineProperty(Element.prototype, 'offsetHeight', {
    configurable: true,
    get: jest.fn().mockReturnValue(height)
  });

  Object.defineProperty(Element.prototype, 'offsetWidth', {
    configurable: true,
    get: jest.fn().mockReturnValue(width)
  });
}

function createParent() {
  var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
      cache = _ref2.cache,
      _ref2$invalidateCellS = _ref2.invalidateCellSizeAfterRender,
      invalidateCellSizeAfterRender = _ref2$invalidateCellS === undefined ? jest.fn() : _ref2$invalidateCellS;

  return {
    invalidateCellSizeAfterRender: invalidateCellSizeAfterRender,
    props: {
      deferredMeasurementCache: cache
    }
  };
}

function renderHelper() {
  var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
      _ref3$cache = _ref3.cache,
      cache = _ref3$cache === undefined ? new CellMeasurerCache({
    fixedWidth: true
  }) : _ref3$cache,
      _ref3$children = _ref3.children,
      children = _ref3$children === undefined ? React.createElement('div', null) : _ref3$children,
      parent = _ref3.parent;

  render(React.createElement(
    CellMeasurer,
    {
      cache: cache,
      columnIndex: 0,
      parent: parent,
      rowIndex: 0,
      style: {}
    },
    children
  ));
}

describe('CellMeasurer', function () {
  it('componentDidMount() should measure content that is not already in the cache', function () {
    var cache = new CellMeasurerCache({
      fixedWidth: true
    });
    var parent = createParent({ cache: cache });

    mockClientWidthAndHeight({
      height: 20,
      width: 100
    });

    var offsetHeightMock = _Object$getOwnPropertyDescriptor(Element.prototype, 'offsetHeight').get;
    var offsetWidthMock = _Object$getOwnPropertyDescriptor(Element.prototype, 'offsetWidth').get;

    expect(offsetHeightMock.mock.calls).toHaveLength(0);
    expect(offsetWidthMock.mock.calls).toHaveLength(0);
    expect(cache.has(0, 0)).toBe(false);

    renderHelper({ cache: cache, parent: parent });

    expect(parent.invalidateCellSizeAfterRender).toHaveBeenCalled();
    expect(offsetHeightMock.mock.calls).toHaveLength(1);
    expect(offsetWidthMock.mock.calls).toHaveLength(1);
    expect(cache.has(0, 0)).toBe(true);
    expect(cache.getWidth(0, 0)).toBe(100);
    expect(cache.getHeight(0, 0)).toBe(20);
  });

  it('componentDidMount() should not measure content that is already in the cache', function () {
    var cache = new CellMeasurerCache({
      fixedWidth: true
    });
    cache.set(0, 0, 100, 20);

    var parent = createParent({ cache: cache });

    mockClientWidthAndHeight({
      height: 20,
      width: 100
    });

    expect(cache.has(0, 0)).toBe(true);

    renderHelper({ cache: cache, parent: parent });

    var offsetHeightMock = _Object$getOwnPropertyDescriptor(Element.prototype, 'offsetHeight').get;
    var offsetWidthMock = _Object$getOwnPropertyDescriptor(Element.prototype, 'offsetWidth').get;

    expect(parent.invalidateCellSizeAfterRender).not.toHaveBeenCalled();
    expect(offsetHeightMock.mock.calls).toHaveLength(0);
    expect(offsetWidthMock.mock.calls).toHaveLength(0);
  });

  it('componentDidUpdate() should measure content that is not already in the cache', function () {
    var cache = new CellMeasurerCache({
      fixedWidth: true
    });
    var parent = createParent({ cache: cache });

    renderHelper({ cache: cache, parent: parent });

    cache.clear(0, 0);
    parent.invalidateCellSizeAfterRender.mockReset();

    expect(cache.has(0, 0)).toBe(false);
    expect(cache.getWidth(0, 0)).toBe(DEFAULT_WIDTH);
    expect(cache.getHeight(0, 0)).toBe(DEFAULT_HEIGHT);

    mockClientWidthAndHeight({
      height: 20,
      width: 100
    });

    var offsetHeightMock = _Object$getOwnPropertyDescriptor(Element.prototype, 'offsetHeight').get;
    var offsetWidthMock = _Object$getOwnPropertyDescriptor(Element.prototype, 'offsetWidth').get;

    renderHelper({ cache: cache, parent: parent });

    expect(cache.has(0, 0)).toBe(true);

    expect(parent.invalidateCellSizeAfterRender).toHaveBeenCalled();
    expect(offsetHeightMock.mock.calls).toHaveLength(1);
    expect(offsetWidthMock.mock.calls).toHaveLength(1);
    expect(cache.getWidth(0, 0)).toBe(100);
    expect(cache.getHeight(0, 0)).toBe(20);
  });

  it('componentDidUpdate() should not measure content that is already in the cache', function () {
    var cache = new CellMeasurerCache({
      fixedWidth: true
    });
    cache.set(0, 0, 100, 20);

    var parent = createParent({ cache: cache });

    expect(cache.has(0, 0)).toBe(true);

    mockClientWidthAndHeight({
      height: 20,
      width: 100
    });

    renderHelper({ cache: cache, parent: parent });
    renderHelper({ cache: cache, parent: parent });

    var offsetHeightMock = _Object$getOwnPropertyDescriptor(Element.prototype, 'offsetHeight').get;
    var offsetWidthMock = _Object$getOwnPropertyDescriptor(Element.prototype, 'offsetWidth').get;

    expect(parent.invalidateCellSizeAfterRender).not.toHaveBeenCalled();
    expect(offsetHeightMock.mock.calls).toHaveLength(0);
    expect(offsetWidthMock.mock.calls).toHaveLength(0);
  });

  it('componentDidUpdate() should pass a :measure param to a function child', function () {
    var cache = new CellMeasurerCache({
      fixedWidth: true
    });

    var children = jest.fn();
    children.mockReturnValue(React.createElement('div', null));

    renderHelper({ cache: cache, children: children });

    expect(children).toHaveBeenCalled();

    var params = children.mock.calls[0][0];

    expect(typeof params.measure === 'function').toBe(true);
  });

  it('should still update cache without a parent Grid', function () {
    spyOn(console, 'warn');

    mockClientWidthAndHeight({
      height: 20,
      width: 100
    });

    var cache = new CellMeasurerCache({
      fixedWidth: true
    });

    renderHelper({ cache: cache }); // No parent Grid

    expect(cache.has(0, 0)).toBe(true);

    expect(console.warn).not.toHaveBeenCalled();
  });

  // See issue #593
  it('should explicitly set widht/height style to "auto" before re-measuring', function () {
    var cache = new CellMeasurerCache({
      fixedWidth: true
    });
    var parent = createParent({ cache: cache });
    var child = jest.fn();
    child.mockImplementation(function (params) {
      return React.createElement('div', { style: { width: 100, height: 30 } });
    });

    var node = findDOMNode(render(React.createElement(
      CellMeasurer,
      {
        cache: cache,
        columnIndex: 0,
        parent: parent,
        rowIndex: 0,
        style: {}
      },
      child
    )));

    node.style.width = 100;
    node.style.height = 30;

    child.mock.calls[0][0].measure();

    expect(node.style.height).toBe('auto');
    expect(node.style.width).not.toBe('auto');
  });
});