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Add tests for full-screen table module
This commit is contained in:
Tom Byers
committed by
Chris Hill-Scott
Chris Hill-Scott
parent
cb63d44c08
commit
435334ba9c
370
tests/javascripts/fullscreenTable.test.js
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370
tests/javascripts/fullscreenTable.test.js
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const helpers = require('./support/helpers');
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beforeAll(() => {
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// set up jQuery
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window.jQuery = require('jquery');
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$ = window.jQuery;
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// load module code
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require('govuk_frontend_toolkit/javascripts/govuk/modules.js');
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require('../../app/assets/javascripts/fullscreenTable.js');
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});
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afterAll(() => {
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window.jQuery = null;
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$ = null;
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delete window.GOVUK;
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});
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describe('FullscreenTable', () => {
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let container;
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let tableFrame;
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let table;
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let numberColumnFrame;
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function setWindowHeightTo (height) {
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// mock DOM calls for window height
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window.innerHeight = height;
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// remove calls to document.documentElement.clientHeight when jQuery is gone. It's called to support older browsers like IE8
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jest.spyOn(document.documentElement, 'clientHeight', 'get').mockImplementation(() => height);
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};
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function setWindowWidthTo (width) {
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// mock DOM calls for window width
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window.innerWidth = width;
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// remove calls to document.documentElement.clientWidth when jQuery is gone. It's called to support older browsers like IE8
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jest.spyOn(document.documentElement, 'clientWidth', 'get').mockImplementation(() => height);
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};
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function resizeWindowTo (dimensions) {
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setWindowHeightTo(dimensions.height);
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setWindowWidthTo(dimensions.width);
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helpers.triggerEvent(window, 'resize');
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};
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function scrollWindowBy (scrollTop) {
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document.documentElement.scrollTop = scrollTop;
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helpers.triggerEvent(window, 'scroll');
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};
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function resetWindowDimensions () {
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setWindowHeightTo(768);
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setWindowWidthTo(1024);
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};
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function setElementDimensionsAndOffset (el, opts) {
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const elOffsetSpy = jest.spyOn(el, 'getBoundingClientRect');
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if (opts.height) {
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el.setAttribute('style', `height: ${opts.height}px`);
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}
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if (opts.width) {
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el.setAttribute('style', `width: ${opts.width}px`);
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}
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if (opts.offset) {
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elOffsetSpy.mockImplementation(() => opts.offset);
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}
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};
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function setElementWidth (el, width) {
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el.setAttribute('style', `.width: ${width}px`);
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};
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beforeEach(() => {
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const tableHeadings = () => {
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let result = '';
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const headings = ['1', 'name', 'email address', 'age', 'building number', 'address line 1', 'address line 2', 'postcode'];
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headings.forEach((heading, idx) => {
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if (idx === 0) {
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result += `<th scope="col" class="table-field-heading-first">
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<span class="visually-hidden">Row in file</span><span aria-hidden="true" class="table-field-invisible-error">${heading}</span>
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</th>`;
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} else {
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result += `<th scope="col" class="table-field-heading">
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${heading}
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</th>`;
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}
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});
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return result;
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}
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const rowCells = (cells) => {
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let result = '';
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Object.keys(cells).forEach((key, idx) => {
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if (idx === 0) {
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result += `<td class="table-field-index">
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<span class="table-field-error">
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${key}
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</span>
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</td>`;
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} else {
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result += `<td class="table-field-left-aligned ">
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<div class="table-field-status-default">
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${key}
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</div>
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</td>`;
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}
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});
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return result;
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};
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const tableRows = () => {
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let result = '';
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const rows = [
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['John Logie Baird', 'johnlbaird@gmail.com', '37', '22', 'Frith Street', 'Soho, London', 'W1D 4RF'],
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['Guglielmo Marconi', 'gmarconi@hotmail.com', '21', 'Pontecchio Marconi', 'Via Celestini 1', 'Bologna', ''],
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['Louis Braille', 'louisbraille@yahoo.co.uk', '', '56', 'Boulevard des Invalides', 'Paris', '75007'],
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['Ray Tomlinson', 'hedy.lamarr@msn.com', '25', '870', '870 Winter Street', 'Waltham', 'MA 02451']
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];
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rows.forEach(row => {
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result += `<tr class="table-row">${rowCells(row)}</tr>`;
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});
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return result;
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}
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// set up DOM
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document.body.innerHTML =
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`<main>
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<div class="fullscreen-content" data-module="fullscreen-table">
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<table class="table table-font-xsmall">
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<caption class="heading-medium table-heading visuallyhidden">
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people.csv
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</caption>
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<thead class="table-field-headings-visible">
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<tr>
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${tableHeadings()}
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</tr>
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</thead>
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<tbody>
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${tableRows()}
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</tbody>
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</table>
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</div>
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</main>`;
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container = document.querySelector('.fullscreen-content');
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});
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afterEach(() => {
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document.body.innerHTML = '';
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});
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describe("when it loads", () => {
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beforeEach(() => {
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// start module
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window.GOVUK.modules.start();
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});
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test("it fixes the number column for each row without changing the semantics", () => {
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tableFrame = document.querySelector('.fullscreen-scrollable-table');
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numberColumnFrame = document.querySelector('.fullscreen-fixed-table');
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expect(tableFrame).not.toBeNull();
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expect(numberColumnFrame).not.toBeNull();
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expect(numberColumnFrame.getAttribute('role')).toEqual('presentation');
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});
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});
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describe("the height of the table should fit the vertical space available to it", () => {
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beforeEach(() => {
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// set the height and offset of the window and table container from the top of the document
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// so just the top 268px of it appears on-screen
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setWindowHeightTo(768);
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setElementDimensionsAndOffset(container, { height: 1000, offset: { top: 500 } });
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// start module
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window.GOVUK.modules.start();
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tableFrame = document.querySelector('.fullscreen-scrollable-table');
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numberColumnFrame = document.querySelector('.fullscreen-fixed-table');
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});
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afterEach(() => {
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jest.clearAllMocks();
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resetWindowDimensions();
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scrollWindowBy(0);
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});
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test("when the page has loaded", () => {
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// the frames should crop to the top 268px of the table that is visible
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expect(window.getComputedStyle(tableFrame)['height']).toEqual('268px');
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expect(window.getComputedStyle(numberColumnFrame)['height']).toEqual('268px');
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});
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test("when the page has scrolled", () => {
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// scroll the window so the table fills the height of the window (768px)
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scrollWindowBy(500);
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// the frames should crop to the window height
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expect(window.getComputedStyle(tableFrame)['height']).toEqual('768px');
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expect(window.getComputedStyle(numberColumnFrame)['height']).toEqual('768px');
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});
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test("when the page has resized", () => {
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// resize the window by 232px (from 768px to 1000px)
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resizeWindowTo({ height: 1000, width: 1024 });
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// the frames should crop to the top 500px of the table now visible
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expect(window.getComputedStyle(tableFrame)['height']).toEqual('500px');
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expect(window.getComputedStyle(numberColumnFrame)['height']).toEqual('500px');
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});
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});
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describe("the width of the table should fit the horizontal space available to it", () => {
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let rowNumberColumnCell;
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beforeEach(() => {
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rowNumberColumnCell = container.querySelector('.table-field-index');
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// set main content column width (used as module as gauge for table width)
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setWindowWidthTo(1024);
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document.querySelector('main').setAttribute('style', 'width: 742px');
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// set total width of column for row numbers in table to 40px
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rowNumberColumnCell.setAttribute('style', 'width: 40px');
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// start module
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window.GOVUK.modules.start();
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tableFrame = document.querySelector('.fullscreen-scrollable-table');
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numberColumnFrame = document.querySelector('.fullscreen-fixed-table');
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});
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afterEach(() => {
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jest.clearAllMocks();
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resetWindowDimensions();
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scrollWindowBy(0);
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});
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test("when the page has loaded", () => {
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// table should set its width to be that of `<main>`, minus margin-left for the row numbers column
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expect(window.getComputedStyle(tableFrame)['width']).toEqual('702px'); // width of content column - numbers column
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expect(window.getComputedStyle(tableFrame)['margin-left']).toEqual('40px'); // width of numbers column
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// table for number column has 4px extra to allow space for drop shadow
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expect(window.getComputedStyle(numberColumnFrame)['width']).toEqual('44px');
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});
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test("when the page has resized", () => {
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// resize window and content column
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document.querySelector('main').setAttribute('style', 'width: 720px');
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resizeWindowTo({ height: 768, width: 960 });
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// table should set its width to be that of `<main>`, minus margin-left for the row numbers column
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expect(window.getComputedStyle(tableFrame)['width']).toEqual('680px'); // width of content column - numbers column
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expect(window.getComputedStyle(tableFrame)['margin-left']).toEqual('40px'); // width of numbers column
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// table for number column has 4px extra to allow space for drop shadow
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expect(window.getComputedStyle(numberColumnFrame)['width']).toEqual('44px');
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});
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});
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describe("when the table scrolls horizontally", () => {
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let rightEdgeShadow;
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beforeEach(() => {
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// start module
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window.GOVUK.modules.start();
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tableFrame = document.querySelector('.fullscreen-scrollable-table');
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table = tableFrame.querySelector('table');
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numberColumnFrame = document.querySelector('.fullscreen-fixed-table');
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rightEdgeShadow = container.querySelector('.fullscreen-right-shadow');
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tableFrame.setAttribute('style', 'width: 742px');
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table.setAttribute('style', 'width: 1000px');
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});
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test("the right edge of the table scroll area should have a drop-shadow if it isn't scrolled", () => {
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tableFrame.scrollLeft = 0;
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helpers.triggerEvent(tableFrame, 'scroll');
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expect(numberColumnFrame.classList.contains('fullscreen-scrolled-table')).toBe(false);
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expect(rightEdgeShadow.classList.contains('visible')).toBe(true);
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});
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test("the left edge of the table scroll area should have a drop-shadow if the table is scrolled to 100%", () => {
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// scroll to end of table
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tableFrame.scrollLeft = 258;
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helpers.triggerEvent(tableFrame, 'scroll');
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expect(numberColumnFrame.classList.contains('fullscreen-scrolled-table')).toBe(true);
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expect(rightEdgeShadow.classList.contains('visible')).toBe(false);
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});
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test("both edges of the table scroll area should have a drop-shadow if the table is scrolled between 0% and 100%", () => {
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// scroll to middle of table
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tableFrame.scrollLeft = 129;
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helpers.triggerEvent(tableFrame, 'scroll');
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expect(numberColumnFrame.classList.contains('fullscreen-scrolled-table')).toBe(true);
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expect(rightEdgeShadow.classList.contains('visible')).toBe(true);
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});
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});
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});
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