/
coverage.spec.js
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/
coverage.spec.js
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/**
* 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.
*/
module.exports.addTests = function({testRunner, expect}) {
const {describe, xdescribe, fdescribe} = testRunner;
const {it, fit, xit} = testRunner;
const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
describe('JSCoverage', function() {
it('should work', async function({page, server}) {
await page.coverage.startJSCoverage();
await page.goto(server.PREFIX + '/jscoverage/simple.html', {waitUntil: 'networkidle0'});
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(1);
expect(coverage[0].url).toContain('/jscoverage/simple.html');
expect(coverage[0].ranges).toEqual([
{ start: 0, end: 17 },
{ start: 35, end: 61 },
]);
});
it('should report sourceURLs', async function({page, server}) {
await page.coverage.startJSCoverage();
await page.goto(server.PREFIX + '/jscoverage/sourceurl.html');
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(1);
expect(coverage[0].url).toBe('nicename.js');
});
it('should ignore eval() scripts by default', async function({page, server}) {
await page.coverage.startJSCoverage();
await page.goto(server.PREFIX + '/jscoverage/eval.html');
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(1);
});
it('shouldn\'t ignore eval() scripts if reportAnonymousScripts is true', async function({page, server}) {
await page.coverage.startJSCoverage({reportAnonymousScripts: true});
await page.goto(server.PREFIX + '/jscoverage/eval.html');
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.find(entry => entry.url.startsWith('debugger://'))).not.toBe(null);
expect(coverage.length).toBe(2);
});
it('should ignore pptr internal scripts if reportAnonymousScripts is true', async function({page, server}) {
await page.coverage.startJSCoverage({reportAnonymousScripts: true});
await page.goto(server.EMPTY_PAGE);
await page.evaluate('console.log("foo")');
await page.evaluate(() => console.log('bar'));
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(0);
});
it('should report multiple scripts', async function({page, server}) {
await page.coverage.startJSCoverage();
await page.goto(server.PREFIX + '/jscoverage/multiple.html');
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(2);
coverage.sort((a, b) => a.url.localeCompare(b.url));
expect(coverage[0].url).toContain('/jscoverage/script1.js');
expect(coverage[1].url).toContain('/jscoverage/script2.js');
});
it('should report right ranges', async function({page, server}) {
await page.coverage.startJSCoverage();
await page.goto(server.PREFIX + '/jscoverage/ranges.html');
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(1);
const entry = coverage[0];
expect(entry.ranges.length).toBe(1);
const range = entry.ranges[0];
expect(entry.text.substring(range.start, range.end)).toBe(`console.log('used!');`);
});
it('should report scripts that have no coverage', async function({page, server}) {
await page.coverage.startJSCoverage();
await page.goto(server.PREFIX + '/jscoverage/unused.html');
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(1);
const entry = coverage[0];
expect(entry.url).toContain('unused.html');
expect(entry.ranges.length).toBe(0);
});
it('should work with conditionals', async function({page, server}) {
await page.coverage.startJSCoverage();
await page.goto(server.PREFIX + '/jscoverage/involved.html');
const coverage = await page.coverage.stopJSCoverage();
expect(JSON.stringify(coverage, null, 2).replace(/:\d{4}\//g, ':<PORT>/')).toBeGolden('jscoverage-involved.txt');
});
describe('resetOnNavigation', function() {
it('should report scripts across navigations when disabled', async function({page, server}) {
await page.coverage.startJSCoverage({resetOnNavigation: false});
await page.goto(server.PREFIX + '/jscoverage/multiple.html');
await page.goto(server.EMPTY_PAGE);
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(2);
});
it('should NOT report scripts across navigations when enabled', async function({page, server}) {
await page.coverage.startJSCoverage(); // Enabled by default.
await page.goto(server.PREFIX + '/jscoverage/multiple.html');
await page.goto(server.EMPTY_PAGE);
const coverage = await page.coverage.stopJSCoverage();
expect(coverage.length).toBe(0);
});
});
// @see https://crbug.com/990945
xit('should not hang when there is a debugger statement', async function({page, server}) {
await page.coverage.startJSCoverage();
await page.goto(server.EMPTY_PAGE);
await page.evaluate(() => {
debugger; // eslint-disable-line no-debugger
});
await page.coverage.stopJSCoverage();
});
});
describe('CSSCoverage', function() {
it('should work', async function({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('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('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('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('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('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>/')).toBeGolden('csscoverage-involved.txt');
});
it('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);
});
describe('resetOnNavigation', function() {
it('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('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('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);
}, server.PREFIX + '/csscoverage/stylesheet1.css');
const coverage = await page.coverage.stopCSSCoverage();
expect(coverage.length).toBe(1);
});
});
};