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Unified Diff: third_party/WebKit/LayoutTests/inspector-protocol/stylesheet-tracking-restart.js

Issue 2950713002: [DevTools] New harness for inspector-protocol layout tests (Closed)
Patch Set: addressed comments, 4 tests Created 3 years, 6 months ago
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Index: third_party/WebKit/LayoutTests/inspector-protocol/stylesheet-tracking-restart.js
diff --git a/third_party/WebKit/LayoutTests/inspector-protocol/stylesheet-tracking-restart.js b/third_party/WebKit/LayoutTests/inspector-protocol/stylesheet-tracking-restart.js
new file mode 100644
index 0000000000000000000000000000000000000000..47916fadbc2a0ffb04a70b89b33891cd9d9257a4
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/inspector-protocol/stylesheet-tracking-restart.js
@@ -0,0 +1,47 @@
+(async function(testRunner) {
+ testRunner.log('This test checks that if style sheet is removed between two inspector launches it is not reported to frontend.');
+ var page = await testRunner.createPage();
+ var session = await page.createSession();
+ await session.evaluate(`
+ function createStyleSheet(textContent)
+ {
+ var styleElement = document.createElement('style');
+ styleElement.textContent = textContent;
+ document.head.appendChild(styleElement);
+ return styleElement;
+ }
+ window.styleElement1 = createStyleSheet('body.class1 { color: red; } \\n /*# sourceURL=foo.css */');
+ window.styleElement2 = createStyleSheet('body.class2 { color: green; } \\n /*# sourceURL=bar.css */');
+ `);
+ testRunner.log('\nRunning test');
+ testRunner.log('Opening front-end for the first time');
+ await runTest(session);
+ testRunner.log('Closing inspector.');
+ testRunner.log('\nRemoving style sheet.\n');
+ session.evaluate('setTimeout(() => document.head.removeChild(styleElement1), 0)');
+ await session.disconnect();
+ testRunner.log('Reopening inspector.');
+ session = await page.createSession();
+ testRunner.log('Running test');
+ testRunner.log('Opening front-end second time');
+ await runTest(session);
+ testRunner.completeTest();
+ async function runTest(session) {
+ var headersAdded = [];
+ session.protocol.CSS.onStyleSheetAdded(response => headersAdded.push(response.params.header));
+ var headersRemoved = [];
+ session.protocol.CSS.onStyleSheetRemoved(response => headersRemoved.push(response.params.styleSheetId));
+ testRunner.log('Enabling CSS domain.');
+ session.protocol.DOM.enable();
+ await session.protocol.CSS.enable();
+ var headers = {};
+ headersAdded.sort((a, b) => a.styleSheetId - b.styleSheetId);
+ for (var header of headersAdded) {
+ headers[header.styleSheetId] = header.sourceURL;
+ testRunner.log(' - style sheet added: ' + header.sourceURL);
+ }
+ headersRemoved.sort();
+ for (var styleSheetId of headersRemoved)
+ testRunner.log(' - style sheet removed: ' + headers[styleSheetId]);
+ }
+})

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