playwright/test/chromium-css-coverage.spec.ts

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2020-08-03 23:41:48 +03:00
/**
* Copyright 2018 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import utils from './utils';
2020-08-03 23:41:48 +03:00
const {FFOX, CHROMIUM, WEBKIT} = testOptions;
it.skip(!CHROMIUM)('should work', async function({browserType, page, server}) {
await page.coverage.startCSSCoverage();
await page.goto(server.PREFIX + '/csscoverage/simple.html');
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(1);
expect(coverage[0].url).toContain('/csscoverage/simple.html');
expect(coverage[0].ranges).toEqual([
{start: 1, end: 22}
]);
const range = coverage[0].ranges[0];
expect(coverage[0].text.substring(range.start, range.end)).toBe('div { color: green; }');
});
it.skip(!CHROMIUM)('should report sourceURLs', async function({page, server}) {
await page.coverage.startCSSCoverage();
await page.goto(server.PREFIX + '/csscoverage/sourceurl.html');
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(1);
expect(coverage[0].url).toBe('nicename.css');
});
it.skip(!CHROMIUM)('should report multiple stylesheets', async function({page, server}) {
await page.coverage.startCSSCoverage();
await page.goto(server.PREFIX + '/csscoverage/multiple.html');
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(2);
coverage.sort((a, b) => a.url.localeCompare(b.url));
expect(coverage[0].url).toContain('/csscoverage/stylesheet1.css');
expect(coverage[1].url).toContain('/csscoverage/stylesheet2.css');
});
it.skip(!CHROMIUM)('should report stylesheets that have no coverage', async function({page, server}) {
await page.coverage.startCSSCoverage();
await page.goto(server.PREFIX + '/csscoverage/unused.html');
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(1);
expect(coverage[0].url).toBe('unused.css');
expect(coverage[0].ranges.length).toBe(0);
});
it.skip(!CHROMIUM)('should work with media queries', async function({page, server}) {
await page.coverage.startCSSCoverage();
await page.goto(server.PREFIX + '/csscoverage/media.html');
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(1);
expect(coverage[0].url).toContain('/csscoverage/media.html');
expect(coverage[0].ranges).toEqual([
{start: 17, end: 38}
]);
});
it.skip(!CHROMIUM)('should work with complicated usecases', async function({page, server}) {
await page.coverage.startCSSCoverage();
await page.goto(server.PREFIX + '/csscoverage/involved.html');
const coverage = await page.coverage.stopCSSCoverage();
expect(JSON.stringify(coverage, null, 2).replace(/:\d{4}\//g, ':<PORT>/')).toMatchSnapshot();
});
it.skip(!CHROMIUM)('should ignore injected stylesheets', async function({page, server}) {
await page.coverage.startCSSCoverage();
await page.addStyleTag({content: 'body { margin: 10px;}'});
// trigger style recalc
const margin = await page.evaluate(() => window.getComputedStyle(document.body).margin);
expect(margin).toBe('10px');
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(0);
});
it.skip(!CHROMIUM)('should report stylesheets across navigations', async function({page, server}) {
await page.coverage.startCSSCoverage({resetOnNavigation: false});
await page.goto(server.PREFIX + '/csscoverage/multiple.html');
await page.goto(server.EMPTY_PAGE);
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(2);
});
it.skip(!CHROMIUM)('should NOT report scripts across navigations', async function({page, server}) {
await page.coverage.startCSSCoverage(); // Enabled by default.
await page.goto(server.PREFIX + '/csscoverage/multiple.html');
await page.goto(server.EMPTY_PAGE);
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(0);
});
it.skip(!CHROMIUM)('should work with a recently loaded stylesheet', async function({page, server}) {
await page.coverage.startCSSCoverage();
await page.evaluate(async url => {
document.body.textContent = 'hello, world';
const link = document.createElement('link');
link.rel = 'stylesheet';
link.href = url;
document.head.appendChild(link);
await new Promise(x => link.onload = x);
await new Promise(f => requestAnimationFrame(f));
}, server.PREFIX + '/csscoverage/stylesheet1.css');
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(1);
});