text: /**
   * 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.
   */
  
  const expect = require('expect');
  const {getTestState, setupTestPageAndContextHooks, setupTestBrowserHooks} = require('./mocha-utils');
  
  describe('Coverage specs', function() {
    describeChromeOnly('JSCoverage', function() {
      setupTestBrowserHooks();
      setupTestPageAndContextHooks();
  
      it('should work', async() => {
        const {page, server} = getTestState();
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
          const {page, server} = getTestState();
  
          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() => {
          const {page, server} = getTestState();
  
          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() => {
        const {page, server} = getTestState();
  
        await page.coverage.startJSCoverage();
        await page.goto(server.EMPTY_PAGE);
        await page.evaluate(() => {
          debugger; // eslint-disable-line no-debugger
        });
        await page.coverage.stopJSCoverage();
      });
    });
  
    describeChromeOnly('CSSCoverage', function() {
      setupTestBrowserHooks();
      setupTestPageAndContextHooks();
  
      it('should work', async() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page, server} = getTestState();
  
        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() => {
        const {page} = getTestState();
  
        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() => {
          const {page, server} = getTestState();
  
          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() => {
          const {page, server} = getTestState();
  
          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() => {
        const {page, server} = getTestState();
  
        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);
      });
    });
  });
  