UNPKG

chrome-devtools-frontend

Version:
98 lines (92 loc) 3.19 kB
// Copyright 2023 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import rule from '../lib/single-screenshot-assertion-per-test.ts'; import {RuleTester} from './utils/RuleTester.ts'; new RuleTester().run('single-screenshot-assertion-per-test', rule, { valid: [ { code: `it('does a thing', () => { assertElementScreenshotUnchanged(element, 'foo.png'); }) `, filename: 'front_end/components/test.ts', }, { code: `it('will autoscroll if the user has a cell selected, but then clicks elsewhere in the UI, causing a new row to be added', async () => { const dataGrid = await getDataGrid(); await assertDataGridNotScrolled(dataGrid); const firstBodyCell = await $('tr[aria-rowindex="1"] > td[aria-colindex="1"]', dataGrid); if (!firstBodyCell) { throw new Error('Could not find first body cell to click.'); } await click(firstBodyCell); await waitFor('tr.selected', dataGrid); await clickAddButton(); await getDataGridRows(11, dataGrid); await waitForScrollTopOfDataGrid(dataGrid, 89); });`, filename: 'front_end/components/test.ts', }, ], invalid: [ { code: `it('does a thing', () => { assertElementScreenshotUnchanged(element, 'foo.png'); changeSomeThing(); assertElementScreenshotUnchanged(element, 'bar.png'); }) `, filename: 'front_end/components/test.ts', errors: [{messageId: 'moreThanOneScreenshotAssertionFound'}], }, { code: `it('does a thing', function() { assertElementScreenshotUnchanged(element, 'foo.png'); changeSomeThing(); assertElementScreenshotUnchanged(element, 'bar.png'); }) `, filename: 'front_end/components/test.ts', errors: [{messageId: 'moreThanOneScreenshotAssertionFound'}], }, { code: `function testViaSomeHelper() { assertElementScreenshotUnchanged(element, 'foo.png'); changeSomeThing(); assertElementScreenshotUnchanged(element, 'bar.png'); } it('does a thing', function() { testViaSomeHelper(); }) `, filename: 'front_end/components/test.ts', errors: [{messageId: 'moreThanOneScreenshotAssertionFound'}], }, { code: `const testViaSomeHelper = () => { assertElementScreenshotUnchanged(element, 'foo.png'); changeSomeThing(); assertElementScreenshotUnchanged(element, 'bar.png'); } it('does a thing', function() { testViaSomeHelper(); }) `, filename: 'front_end/components/test.ts', errors: [{messageId: 'moreThanOneScreenshotAssertionFound'}], }, { code: `it('does a thing', () => { assertElementScreenshotUnchanged(element, 'foo.png'); changeSomeThing(); assertPageScreenshotUnchanged(element, 'bar.png'); }) `, filename: 'front_end/components/test.ts', errors: [{messageId: 'moreThanOneScreenshotAssertionFound'}], }, ], });