참고소스 수정본

참고/playwright-main/tests/library/chromium/css-coverage.spec.ts

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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.
+ */
+
+import { chromiumVersionLessThan } from '../../config/utils';
+import { contextTest as it, expect } from '../../config/browserTest';
+
+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, browserVersion }) {
+  it.skip(chromiumVersionLessThan(browserVersion, '115.0.5762.0'), 'https://chromium-review.googlesource.com/c/chromium/src/+/4508957');
+  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: 8, end: 15 },
+    { start: 17, end: 38 },
+  ]);
+});
+
+it('should work with complicated usecases', async function({ page, server, browserVersion }) {
+  it.skip(chromiumVersionLessThan(browserVersion, '115.0.5762.0'), 'https://chromium-review.googlesource.com/c/chromium/src/+/4508957');
+  await page.coverage.startCSSCoverage();
+  await page.goto(server.PREFIX + '/csscoverage/involved.html');
+  const coverage = await page.coverage.stopCSSCoverage();
+  delete coverage[0].text;
+  delete coverage[0].url;
+  expect(coverage).toEqual(
+      [
+        {
+          'ranges': [
+            {
+              'start': 149,
+              'end': 297
+            },
+            {
+              'start': 306,
+              'end': 323
+            },
+            {
+              'start': 327,
+              'end': 433
+            }
+          ]
+        }
+      ]
+  );
+});
+
+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);
+});
+
+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);
+    await new Promise(f => window.builtins.requestAnimationFrame(f));
+  }, server.PREFIX + '/csscoverage/stylesheet1.css');
+  const coverage = await page.coverage.stopCSSCoverage();
+  expect(coverage.length).toBe(1);
+});