'use strict';

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; /**
                                                                                                                                                                                                                                                                   * Tests Collection and CollectionView.
                                                                                                                                                                                                                                                                   * 
                                                                                                                                                                                                                                                                   */


var _scrollbarSize = require('dom-helpers/util/scrollbarSize');

var _scrollbarSize2 = _interopRequireDefault(_scrollbarSize);

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactDom = require('react-dom');

var _testUtils = require('react-dom/test-utils');

var _TestUtils = require('../TestUtils');

var _Collection = require('./Collection');

var _Collection2 = _interopRequireDefault(_Collection);

var _TestData = require('./TestData');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }

describe('Collection', function () {
  function defaultCellRenderer(_ref) {
    var index = _ref.index,
        key = _ref.key,
        style = _ref.style;

    return _react2.default.createElement(
      'div',
      {
        className: 'cell',
        key: key,
        style: style
      },
      'cell:',
      index
    );
  }

  function getMarkup() {
    var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var _props$cellCount = props.cellCount,
        cellCount = _props$cellCount === undefined ? _TestData.CELLS.length : _props$cellCount;


    function defaultCellSizeAndPositionGetter(_ref2) {
      var index = _ref2.index;

      index = index % cellCount;

      return _TestData.CELLS[index];
    }

    return _react2.default.createElement(_Collection2.default, _extends({
      cellCount: cellCount,
      cellRenderer: defaultCellRenderer,
      cellSizeAndPositionGetter: defaultCellSizeAndPositionGetter,
      height: _TestData.SECTION_SIZE,
      sectionSize: _TestData.SECTION_SIZE,
      width: _TestData.SECTION_SIZE * 2
    }, props));
  }

  function simulateScroll(_ref3) {
    var collection = _ref3.collection,
        _ref3$scrollLeft = _ref3.scrollLeft,
        scrollLeft = _ref3$scrollLeft === undefined ? 0 : _ref3$scrollLeft,
        _ref3$scrollTop = _ref3.scrollTop,
        scrollTop = _ref3$scrollTop === undefined ? 0 : _ref3$scrollTop;

    var target = { scrollLeft: scrollLeft, scrollTop: scrollTop };
    collection._collectionView._scrollingContainer = target; // HACK to work around _onScroll target check
    _testUtils.Simulate.scroll((0, _reactDom.findDOMNode)(collection), { target: target });
  }

  function compareArrays(array1, array2) {
    expect(array1.length).toEqual(array2.length);

    array2.forEach(function (value) {
      expect(array1).toContain(value);
    });
  }

  describe('number of rendered children', function () {
    it('should render enough children to fill the available area', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup()));
      expect(rendered.querySelectorAll('.cell').length).toEqual(4);
    });

    it('should not render more cells than available if the area is not filled', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ cellCount: 2 })));
      expect(rendered.querySelectorAll('.cell').length).toEqual(2);
    });

    // Small performance tweak added in 5.5.6
    it('should not render/parent cells that are null or false', function () {
      function cellRenderer(_ref4) {
        var index = _ref4.index,
            key = _ref4.key,
            style = _ref4.style;

        if (index > 2) {
          return null;
        } else {
          return _react2.default.createElement(
            'div',
            {
              className: 'cell',
              key: key,
              style: style
            },
            index
          );
        }
      }
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ cellRenderer: cellRenderer })));
      expect(rendered.querySelectorAll('.cell').length).toEqual(3);
    });
  });

  describe('shows and hides scrollbars based on rendered content', function () {
    var scrollbarSize = void 0;

    beforeAll(function () {
      scrollbarSize = (0, _scrollbarSize2.default)();
    });

    it('should set overflowX:hidden if columns fit within the available width and y-axis has no scrollbar', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        height: 4,
        width: 6
      })));
      expect(rendered.style.overflowX).toEqual('hidden');
    });

    it('should set overflowX:hidden if columns and y-axis scrollbar fit within the available width', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        height: 1,
        width: 6 + scrollbarSize
      })));
      expect(rendered.style.overflowX).toEqual('hidden');
    });

    it('should leave overflowX:auto if columns require more than the available width', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        width: 1
      })));
      expect(rendered.style.overflowX).not.toEqual('hidden');
    });

    it('should leave overflowX:auto if columns and y-axis scrollbar require more than the available width', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        height: 1,
        width: 6 + scrollbarSize - 1
      })));
      expect(rendered.style.overflowX).not.toEqual('hidden');
    });

    it('should set overflowY:hidden if rows fit within the available width and xaxis has no scrollbar', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        height: 4,
        width: 6
      })));
      expect(rendered.style.overflowY).toEqual('hidden');
    });

    it('should set overflowY:hidden if rows and x-axis scrollbar fit within the available width', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        height: 4 + scrollbarSize,
        width: 1
      })));
      expect(rendered.style.overflowY).toEqual('hidden');
    });

    it('should leave overflowY:auto if rows require more than the available height', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        height: 1
      })));
      expect(rendered.style.overflowY).not.toEqual('hidden');
    });

    it('should leave overflowY:auto if rows and y-axis scrollbar require more than the available height', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        height: 4 + scrollbarSize - 1,
        width: 1
      })));
      expect(rendered.style.overflowY).not.toEqual('hidden');
    });

    it('should accept styles that overwrite calculated ones', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        height: 1,
        style: {
          overflowX: 'auto',
          overflowY: 'auto'
        },
        width: 1
      })));
      expect(rendered.style.overflowX).toEqual('auto');
      expect(rendered.style.overflowY).toEqual('auto');
    });
  });

  describe('autoHeight', function () {
    it('should set the container height to auto to adjust to innerScrollContainer height', function () {
      var props = {
        autoHeight: true
      };
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup(props)));
      expect(rendered.style.height).toEqual('auto');
    });

    it('should have container height still affecting number of rows rendered', function () {
      var indices = void 0;
      var props = {
        autoHeight: true,
        height: 500,
        onSectionRendered: function onSectionRendered(params) {
          indices = params.indices;
        }
      };
      (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup(props)));
      compareArrays(indices, [0, 1, 2, 3, 4, 5]);
    });

    it('should have innerScrollContainer height to be equal number of rows * rowHeight', function () {
      var props = {
        autoHeight: true
      };
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup(props)));
      expect(rendered.querySelector('.ReactVirtualized__Collection__innerScrollContainer').style.height).toEqual('4px');
    });
  });

  describe(':scrollToCell', function () {
    it('should scroll to the top/left', function () {
      var collection = (0, _TestUtils.render)(getMarkup({ scrollToCell: 0 }));
      expect(collection._collectionView.state.scrollLeft).toEqual(0);
      expect(collection._collectionView.state.scrollTop).toEqual(0);
    });

    it('should scroll over to the middle', function () {
      var collection = (0, _TestUtils.render)(getMarkup({ scrollToCell: 7 }));
      expect(collection._collectionView.state.scrollLeft).toEqual(1);
      expect(collection._collectionView.state.scrollTop).toEqual(1);
    });

    it('should scroll to the bottom/right', function () {
      var collection = (0, _TestUtils.render)(getMarkup({ scrollToCell: 9 }));
      expect(collection._collectionView.state.scrollLeft).toEqual(2);
      expect(collection._collectionView.state.scrollTop).toEqual(2);
    });

    it('should honor the specified :scrollToAlignment', function () {
      var collection = (0, _TestUtils.render)(getMarkup({
        scrollToAlignment: 'start',
        scrollToCell: 2,
        width: _TestData.SECTION_SIZE
      }));
      // Minimum amount of scrolling ("auto") would be 0,0
      expect(collection._collectionView.state.scrollLeft).toEqual(2);
      expect(collection._collectionView.state.scrollTop).toEqual(1);

      collection = (0, _TestUtils.render)(getMarkup({
        scrollToAlignment: 'end',
        scrollToCell: 2,
        width: _TestData.SECTION_SIZE
      }));
      // This cell would already by visible by "auto" rules
      expect(collection._collectionView.state.scrollLeft).toEqual(1);
      expect(collection._collectionView.state.scrollTop).toEqual(0);

      collection = (0, _TestUtils.render)(getMarkup({
        scrollToAlignment: 'center',
        scrollToCell: 4,
        width: _TestData.SECTION_SIZE
      }));
      // This cell doesn't fit entirely in the viewport but we center it anyway.
      expect(collection._collectionView.state.scrollLeft).toEqual(0.5);
      expect(collection._collectionView.state.scrollTop).toEqual(2);
    });

    it('should scroll to a cell just added', function () {
      var collection = (0, _TestUtils.render)(getMarkup({
        cellCount: 4
      }));
      expect(collection._collectionView.state.scrollLeft).toEqual(0);
      expect(collection._collectionView.state.scrollTop).toEqual(0);
      collection = (0, _TestUtils.render)(getMarkup({
        cellCount: 8,
        scrollToCell: 7
      }));
      expect(collection._collectionView.state.scrollLeft).toEqual(1);
      expect(collection._collectionView.state.scrollTop).toEqual(1);
    });
  });

  describe('property updates', function () {
    it('should update :scrollToCell position when :width changes', function () {
      var collection = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ scrollToCell: 3 })));
      expect(collection.textContent).toContain('cell:3');
      // Making the collection narrower leaves only room for 1 item
      collection = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ scrollToCell: 3, width: 1 })));
      expect(collection.textContent).toContain('cell:3');
    });

    it('should update :scrollToCell position when :height changes', function () {
      var collection = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ scrollToCell: 4 })));
      expect(collection.textContent).toContain('cell:4');
      // Making the collection shorter leaves only room for 1 item
      collection = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ scrollToCell: 4, height: 1 })));
      expect(collection.textContent).toContain('cell:4');
    });

    it('should update scroll position when :scrollToCell changes', function () {
      var collection = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup()));
      expect(collection.textContent).not.toContain('cell:9');
      collection = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ scrollToCell: 9 })));
      expect(collection.textContent).toContain('cell:9');
    });
  });

  describe('noContentRenderer', function () {
    it('should call :noContentRenderer if :cellCount is 0', function () {
      var list = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        noContentRenderer: function noContentRenderer() {
          return _react2.default.createElement(
            'div',
            null,
            'No data'
          );
        },
        cellCount: 0
      })));
      expect(list.textContent).toEqual('No data');
    });

    it('should render an empty body if :cellCount is 0 and there is no :noContentRenderer', function () {
      var list = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        cellCount: 0
      })));
      expect(list.textContent).toEqual('');
    });

    it('should not show the :noContentRenderer when there are children, even if no children are currently visible (sparse)', function () {
      var offscreenSizeAndPosition = { x: _TestData.SECTION_SIZE * 3, y: _TestData.SECTION_SIZE * 3, width: 1, height: 1 };

      function cellSizeAndPositionGetter(_ref5) {
        var index = _ref5.index;

        return offscreenSizeAndPosition;
      }

      var list = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        cellCount: 1,
        cellSizeAndPositionGetter: cellSizeAndPositionGetter,
        noContentRenderer: function noContentRenderer() {
          return _react2.default.createElement(
            'div',
            null,
            'No data'
          );
        }
      })));
      expect(list.textContent).not.toEqual('No data');
    });
  });

  describe('onSectionRendered', function () {
    it('should call :onSectionRendered if at least one cell is rendered', function () {
      var indices = void 0;
      (0, _TestUtils.render)(getMarkup({
        onSectionRendered: function onSectionRendered(params) {
          indices = params.indices;
        }
      }));
      compareArrays(indices, [0, 1, 2, 3]);
    });

    it('should not call :onSectionRendered unless the rendered indices have changed', function () {
      var numCalls = 0;
      var indices = void 0;
      var onSectionRendered = function onSectionRendered(params) {
        indices = params.indices;
        numCalls++;
      };
      (0, _TestUtils.render)(getMarkup({ onSectionRendered: onSectionRendered }));
      expect(numCalls).toEqual(1);
      compareArrays(indices, [0, 1, 2, 3]);
      (0, _TestUtils.render)(getMarkup({ onSectionRendered: onSectionRendered }));
      expect(numCalls).toEqual(1);
      compareArrays(indices, [0, 1, 2, 3]);
    });

    it('should call :onSectionRendered if the rendered indices have changed', function () {
      var numCalls = 0;
      var indices = void 0;
      var onSectionRendered = function onSectionRendered(params) {
        indices = params.indices;
        numCalls++;
      };
      (0, _TestUtils.render)(getMarkup({ onSectionRendered: onSectionRendered }));
      expect(numCalls).toEqual(1);
      compareArrays(indices, [0, 1, 2, 3]);
      (0, _TestUtils.render)(getMarkup({
        height: _TestData.SECTION_SIZE * 2,
        onSectionRendered: onSectionRendered
      }));
      expect(numCalls).toEqual(2);
      compareArrays(indices, [0, 1, 2, 3, 4, 5]);
      (0, _TestUtils.render)(getMarkup({
        height: _TestData.SECTION_SIZE * 2,
        onSectionRendered: onSectionRendered,
        width: _TestData.SECTION_SIZE
      }));
      expect(numCalls).toEqual(3);
      expect(indices).toEqual([0, 4]);
    });

    it('should not call :onSectionRendered if no cells are rendered', function () {
      var numCalls = 0;
      (0, _TestUtils.render)(getMarkup({
        height: 0,
        onSectionRendered: function onSectionRendered() {
          return numCalls++;
        }
      }));
      expect(numCalls).toEqual(0);
    });
  });

  describe(':scrollLeft and :scrollTop properties', function () {
    it('should render correctly when an initial :scrollLeft and :scrollTop properties are specified', function () {
      var indices = void 0;
      (0, _TestUtils.render)(getMarkup({
        onSectionRendered: function onSectionRendered(params) {
          indices = params.indices;
        },
        scrollLeft: 2,
        scrollTop: 2
      }));
      compareArrays(indices, [3, 4, 5, 7, 8, 9]);
    });

    it('should render correctly when :scrollLeft and :scrollTop properties are updated', function () {
      var indices = void 0;
      (0, _TestUtils.render)(getMarkup({
        onSectionRendered: function onSectionRendered(params) {
          indices = params.indices;
        }
      }));
      compareArrays(indices, [0, 1, 2, 3]);
      (0, _TestUtils.render)(getMarkup({
        onSectionRendered: function onSectionRendered(params) {
          indices = params.indices;
        },
        scrollLeft: 2,
        scrollTop: 2
      }));
      compareArrays(indices, [3, 4, 5, 7, 8, 9]);
    });
  });

  describe('styles, classNames, and ids', function () {
    it('should use the expected global CSS classNames', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup()));
      expect(rendered.className).toEqual('ReactVirtualized__Collection');
    });

    it('should use a custom :className if specified', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ className: 'foo' })));
      expect(rendered.className).toContain('foo');
    });

    it('should use a custom :id if specified', function () {
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ id: 'bar' })));
      expect(rendered.getAttribute('id')).toEqual('bar');
    });

    it('should use a custom :style if specified', function () {
      var style = { backgroundColor: 'red' };
      var rendered = (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({ style: style })));
      expect(rendered.style.backgroundColor).toEqual('red');
    });
  });

  describe('onScroll', function () {
    it('should trigger callback when component is mounted', function () {
      var onScrollCalls = [];
      (0, _TestUtils.render)(getMarkup({
        onScroll: function onScroll(params) {
          return onScrollCalls.push(params);
        },
        scrollLeft: 2,
        scrollTop: 1
      }));
      expect(onScrollCalls).toEqual([{
        clientHeight: _TestData.SECTION_SIZE,
        clientWidth: _TestData.SECTION_SIZE * 2,
        scrollHeight: 4,
        scrollLeft: 2,
        scrollTop: 1,
        scrollWidth: 6
      }]);
    });

    it('should trigger callback when component scrolls horizontally', function () {
      var onScrollCalls = [];
      var collection = (0, _TestUtils.render)(getMarkup({
        onScroll: function onScroll(params) {
          return onScrollCalls.push(params);
        }
      }));
      simulateScroll({
        collection: collection,
        scrollLeft: 1,
        scrollTop: 0
      });
      expect(onScrollCalls.length).toEqual(2);
      expect(onScrollCalls[1]).toEqual({
        clientHeight: _TestData.SECTION_SIZE,
        clientWidth: _TestData.SECTION_SIZE * 2,
        scrollHeight: 4,
        scrollLeft: 1,
        scrollTop: 0,
        scrollWidth: 6
      });
    });

    it('should trigger callback when component scrolls vertically', function () {
      var onScrollCalls = [];
      var collection = (0, _TestUtils.render)(getMarkup({
        onScroll: function onScroll(params) {
          return onScrollCalls.push(params);
        }
      }));
      simulateScroll({
        collection: collection,
        scrollLeft: 0,
        scrollTop: 2
      });
      expect(onScrollCalls.length).toEqual(2);
      expect(onScrollCalls[1]).toEqual({
        clientHeight: _TestData.SECTION_SIZE,
        clientWidth: _TestData.SECTION_SIZE * 2,
        scrollHeight: 4,
        scrollLeft: 0,
        scrollTop: 2,
        scrollWidth: 6
      });
    });

    it('should not allow negative scroll values', function () {
      var onScrollCalls = [];
      var collection = (0, _TestUtils.render)(getMarkup({
        onScroll: function onScroll(params) {
          return onScrollCalls.push(params);
        }
      }));
      simulateScroll({
        collection: collection,
        scrollLeft: -1,
        scrollTop: -1
      });
      expect(onScrollCalls.length).toEqual(1);
      expect(onScrollCalls[0].scrollLeft).toEqual(0);
      expect(onScrollCalls[0].scrollTop).toEqual(0);
    });
  });

  describe('cellGroupRenderer', function () {
    it('should use a custom :cellGroupRenderer if specified', function () {
      var cellGroupRendererCalled = 0;
      var cellGroupRendererParams = void 0;
      var cellRenderer = function cellRenderer(_ref6) {
        var index = _ref6.index,
            key = _ref6.key,
            style = _ref6.style;
        return _react2.default.createElement(
          'div',
          {
            key: key,
            style: style
          },
          index
        );
      };
      (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup({
        cellRenderer: cellRenderer,
        cellGroupRenderer: function cellGroupRenderer(params) {
          cellGroupRendererParams = params;
          cellGroupRendererCalled++;

          return [_react2.default.createElement(
            'div',
            { key: '0' },
            'Fake content'
          )];
        }
      })));
      expect(cellGroupRendererCalled).toEqual(1);
      expect(cellGroupRendererParams.cellRenderer).toEqual(cellRenderer);
      expect(_typeof(cellGroupRendererParams.cellSizeAndPositionGetter)).toEqual('function');
      compareArrays(cellGroupRendererParams.indices, [0, 1, 2, 3]);
    });
  });

  it('should pass the cellRenderer an :isScrolling flag when scrolling is in progress', function () {
    var _ref7 = _asyncToGenerator(regeneratorRuntime.mark(function _callee(done) {
      var cellRendererCalls, cellRenderer, collection;
      return regeneratorRuntime.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              cellRenderer = function cellRenderer(_ref8) {
                var index = _ref8.index,
                    isScrolling = _ref8.isScrolling,
                    key = _ref8.key,
                    style = _ref8.style;

                cellRendererCalls.push(isScrolling);
                return defaultCellRenderer({ index: index, key: key, style: style });
              };

              cellRendererCalls = [];
              collection = (0, _TestUtils.render)(getMarkup({
                cellRenderer: cellRenderer
              }));


              expect(cellRendererCalls[0]).toEqual(false);

              cellRendererCalls.splice(0);

              simulateScroll({ collection: collection, scrollTop: 1 });

              // Give React time to process the queued setState()
              _context.next = 8;
              return new Promise(function (resolve) {
                return setTimeout(resolve, 1);
              });

            case 8:

              expect(cellRendererCalls[0]).toEqual(true);

              done();

            case 10:
            case 'end':
              return _context.stop();
          }
        }
      }, _callee, undefined);
    }));

    return function (_x2) {
      return _ref7.apply(this, arguments);
    };
  }());

  describe('horizontalOverscanSize and verticalOverscanSize', function () {
    it('should include the horizontal and vertical overscan size when rendering cells', function () {
      var indices = void 0;
      (0, _TestUtils.render)(getMarkup({
        onSectionRendered: function onSectionRendered(params) {
          indices = params.indices;
        },
        height: 1,
        horizontalOverscanSize: 2,
        sectionSize: 1,
        scrollLeft: 2,
        scrollTop: 2,
        width: 1,
        verticalOverscanSize: 1
      }));
      compareArrays(indices, [0, 2, 3, 4, 5, 6, 7, 9]);
    });

    it('should not exceed the top/left borders regardless of overscan size', function () {
      var indices = void 0;
      (0, _TestUtils.render)(getMarkup({
        onSectionRendered: function onSectionRendered(params) {
          indices = params.indices;
        },
        height: 2,
        horizontalOverscanSize: 1,
        sectionSize: 1,
        scrollLeft: 0,
        scrollTop: 0,
        width: 1,
        verticalOverscanSize: 2
      }));
      compareArrays(indices, [0, 4]);
    });

    it('should not exceed the bottom/right borders regardless of overscan size', function () {
      var indices = void 0;
      (0, _TestUtils.render)(getMarkup({
        onSectionRendered: function onSectionRendered(params) {
          indices = params.indices;
        },
        height: 2,
        horizontalOverscanSize: 1,
        sectionSize: 1,
        scrollLeft: 5,
        scrollTop: 2,
        width: 1,
        verticalOverscanSize: 2
      }));
      compareArrays(indices, [6, 7, 8, 9]);
    });
  });

  describe('cell caching', function () {
    it('should not cache cells if the Grid is not scrolling', function () {
      var cellRendererCalls = [];
      function cellRenderer(_ref9) {
        var isScrolling = _ref9.isScrolling,
            index = _ref9.index,
            key = _ref9.key,
            style = _ref9.style;

        cellRendererCalls.push({ isScrolling: isScrolling, index: index });
        return defaultCellRenderer({ index: index, key: key, style: style });
      }

      var props = {
        cellRenderer: cellRenderer,
        scrollLeft: 0,
        scrollTop: 0
      };

      (0, _reactDom.findDOMNode)((0, _TestUtils.render)(getMarkup(props)));
      expect(cellRendererCalls.length).toEqual(4);
      cellRendererCalls.forEach(function (call) {
        return expect(call.isScrolling).toEqual(false);
      });

      cellRendererCalls.splice(0);

      (0, _TestUtils.render)(getMarkup(_extends({}, props, {
        foo: 'bar' // Force re-render
      })));
      expect(cellRendererCalls.length).toEqual(4);
      cellRendererCalls.forEach(function (call) {
        return expect(call.isScrolling).toEqual(false);
      });
    });

    it('should cache a cell once it has been rendered while scrolling', function () {
      var cellRendererCalls = [];
      function cellRenderer(_ref10) {
        var isScrolling = _ref10.isScrolling,
            index = _ref10.index,
            key = _ref10.key,
            style = _ref10.style;

        cellRendererCalls.push({ isScrolling: isScrolling, index: index });
        return defaultCellRenderer({ index: index, key: key, style: style });
      }

      var props = {
        cellRenderer: cellRenderer,
        scrollLeft: 0,
        scrollTop: 0
      };

      var collection = (0, _TestUtils.render)(getMarkup(props));
      expect(cellRendererCalls.length).toEqual(4);
      cellRendererCalls.forEach(function (call) {
        return expect(call.isScrolling).toEqual(false);
      });

      // Scroll a little bit; newly-rendered cells will be cached.
      simulateScroll({ collection: collection, scrollTop: 2 });

      cellRendererCalls.splice(0);

      // At this point cells 4 and 5 have been rendered,
      // But cells 7, 8, and 9 have not.
      (0, _TestUtils.render)(getMarkup(_extends({}, props, {
        scrollLeft: 1,
        scrollTop: 3
      })));
      expect(cellRendererCalls.length).toEqual(3);
      cellRendererCalls.forEach(function (call) {
        return expect(call.isScrolling).toEqual(true);
      });
    });

    it('should clear cache once :isScrolling is false', function () {
      var _ref11 = _asyncToGenerator(regeneratorRuntime.mark(function _callee2(done) {
        var cellRendererCalls, cellRenderer, props, collection;
        return regeneratorRuntime.wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                cellRenderer = function cellRenderer(_ref12) {
                  var isScrolling = _ref12.isScrolling,
                      index = _ref12.index,
                      key = _ref12.key,
                      style = _ref12.style;

                  cellRendererCalls.push({ isScrolling: isScrolling, index: index });
                  return defaultCellRenderer({ isScrolling: isScrolling, index: index, key: key, style: style });
                };

                cellRendererCalls = [];
                props = {
                  cellRenderer: cellRenderer,
                  scrollLeft: 0,
                  scrollTop: 0
                };
                collection = (0, _TestUtils.render)(getMarkup(props));

                simulateScroll({ collection: collection, scrollTop: 1 });

                // Allow scrolling timeout to complete so that cell cache is reset
                _context2.next = 7;
                return new Promise(function (resolve) {
                  return setTimeout(resolve, 500);
                });

              case 7:

                cellRendererCalls.splice(0);

                (0, _TestUtils.render)(getMarkup(_extends({}, props, {
                  scrollTop: 1
                })));
                expect(cellRendererCalls.length).not.toEqual(0);

                done();

              case 11:
              case 'end':
                return _context2.stop();
            }
          }
        }, _callee2, undefined);
      }));

      return function (_x3) {
        return _ref11.apply(this, arguments);
      };
    }());
  });

  // See issue #568 for more
  it('forceUpdate will also forceUpdate the inner CollectionView', function () {
    var cellRenderer = jest.fn();
    cellRenderer.mockImplementation(function (_ref13) {
      var key = _ref13.key;
      return _react2.default.createElement('div', { key: key });
    });

    var rendered = (0, _TestUtils.render)(getMarkup({ cellRenderer: cellRenderer }));

    expect(cellRenderer).toHaveBeenCalled();

    cellRenderer.mockReset();
    rendered.forceUpdate();

    expect(cellRenderer).toHaveBeenCalled();
  });
});