32       await page.coverage.startJSCoverage();
36       const coverage = await page.coverage.stopJSCoverage();  constant
37       expect(coverage.length).toBe(1);
38       expect(coverage[0].url).toContain('/jscoverage/simple.html');
39       expect(coverage[0].ranges).toEqual([
47       await page.coverage.startJSCoverage();
49       const coverage = await page.coverage.stopJSCoverage();  constant
50       expect(coverage.length).toBe(1);
51       expect(coverage[0].url).toBe('nicename.js');
56       await page.coverage.startJSCoverage();
58       const coverage = await page.coverage.stopJSCoverage();  constant
59       expect(coverage.length).toBe(1);
64       await page.coverage.startJSCoverage({ reportAnonymousScripts: true });
66       const coverage = await page.coverage.stopJSCoverage();  constant
68         coverage.find((entry) => entry.url.startsWith('debugger://'))
70       expect(coverage.length).toBe(2);
75       await page.coverage.startJSCoverage({ reportAnonymousScripts: true });
79       const coverage = await page.coverage.stopJSCoverage();  constant
80       expect(coverage.length).toBe(0);
85       await page.coverage.startJSCoverage();
87       const coverage = await page.coverage.stopJSCoverage();  constant
88       expect(coverage.length).toBe(2);
89       coverage.sort((a, b) => a.url.localeCompare(b.url));
90       expect(coverage[0].url).toContain('/jscoverage/script1.js');
91       expect(coverage[1].url).toContain('/jscoverage/script2.js');
96       await page.coverage.startJSCoverage();
98       const coverage = await page.coverage.stopJSCoverage();  constant
99       expect(coverage.length).toBe(1);
100       const entry = coverage[0];
110       await page.coverage.startJSCoverage();
112       const coverage = await page.coverage.stopJSCoverage();  constant
113       expect(coverage.length).toBe(1);
114       const entry = coverage[0];
121       await page.coverage.startJSCoverage();
123       const coverage = await page.coverage.stopJSCoverage();  constant
125         JSON.stringify(coverage, null, 2).replace(/:\d{4}\//g, ':<PORT>/')
132       await page.coverage.startJSCoverage();
137       await page.coverage.stopJSCoverage();
143         await page.coverage.startJSCoverage({ resetOnNavigation: false });
146         const coverage = await page.coverage.stopJSCoverage();  constant
147         expect(coverage.length).toBe(2);
153         await page.coverage.startJSCoverage(); // Enabled by default.
156         const coverage = await page.coverage.stopJSCoverage();  constant
157         expect(coverage.length).toBe(0);
169       await page.coverage.startCSSCoverage();
171       const coverage = await page.coverage.stopCSSCoverage();  constant
172       expect(coverage.length).toBe(1);
173       expect(coverage[0].url).toContain('/csscoverage/simple.html');
174       expect(coverage[0].ranges).toEqual([{ start: 1, end: 22 }]);
175       const range = coverage[0].ranges[0];
176       expect(coverage[0].text.substring(range.start, range.end)).toBe(
183       await page.coverage.startCSSCoverage();
185       const coverage = await page.coverage.stopCSSCoverage();  constant
186       expect(coverage.length).toBe(1);
187       expect(coverage[0].url).toBe('nicename.css');
192       await page.coverage.startCSSCoverage();
194       const coverage = await page.coverage.stopCSSCoverage();  constant
195       expect(coverage.length).toBe(2);
196       coverage.sort((a, b) => a.url.localeCompare(b.url));
197       expect(coverage[0].url).toContain('/csscoverage/stylesheet1.css');
198       expect(coverage[1].url).toContain('/csscoverage/stylesheet2.css');
203       await page.coverage.startCSSCoverage();
205       const coverage = await page.coverage.stopCSSCoverage();  constant
206       expect(coverage.length).toBe(1);
207       expect(coverage[0].url).toBe('unused.css');
208       expect(coverage[0].ranges.length).toBe(0);
213       await page.coverage.startCSSCoverage();
215       const coverage = await page.coverage.stopCSSCoverage();  constant
216       expect(coverage.length).toBe(1);
217       expect(coverage[0].url).toContain('/csscoverage/media.html');
218       expect(coverage[0].ranges).toEqual([{ start: 17, end: 38 }]);
223       await page.coverage.startCSSCoverage();
225       const coverage = await page.coverage.stopCSSCoverage();  constant
227         JSON.stringify(coverage, null, 2).replace(/:\d{4}\//g, ':<PORT>/')
233       await page.coverage.startCSSCoverage();
240       const coverage = await page.coverage.stopCSSCoverage();  constant
241       expect(coverage.length).toBe(0);
246       await page.coverage.startCSSCoverage();
256       const coverage = await page.coverage.stopCSSCoverage();  constant
257       expect(coverage.length).toBe(1);
263         await page.coverage.startCSSCoverage({ resetOnNavigation: false });
266         const coverage = await page.coverage.stopCSSCoverage();  constant
267         expect(coverage.length).toBe(2);
272         await page.coverage.startCSSCoverage(); // Enabled by default.
275         const coverage = await page.coverage.stopCSSCoverage();  constant
276         expect(coverage.length).toBe(0);