chromedevtools--chrome-devtools-mcp
Alex Rudenko
b4546ef86b
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Assortment of various flakiness conditions found running tests in a loop locally: This PR introduces a comprehensive set of hermetic retry layers and aggressive timeout handlers across the test suite to insulate it from random Chromium startup hangs, CDP deadlocks, and Puppeteer lifecycle flakes. It guarantees that temporary browser infrastructure failures are automatically retried without failing the CI, while actual code assertion failures still fail fast. ### Test Harness & Retry Improvements • tests/utils.ts: Rewrote withBrowser to include a 30-second internal timeout and a 3-attempt retry loop. If Chromium locks up or disconnects (Target closed / socket hang up), the browser is forcibly evicted (via SIGKILL if browser.close() hangs) and the test setup is cleanly retried. • tests/index.test.ts: Wrapped withClient (used by E2E tests) in a 3-attempt retry loop to handle the daemon/Chromium hanging during launch and triggering the 60-second MCP client timeout. • tests/browser.test.ts: Added a safeClose helper that imposes a 2-second timeout before SIGKILLing browsers, and wrapped raw Puppeteer tests in runWithRetry to handle startup hangs. • tests/shutdown.test.ts: Added a setupServerWithRetry helper to prevent random 60s RPC timeouts when the server's Chrome instance hangs during boot. ### Flaky Operations & Navigation Fixes • src/tools/performance.ts & tests/tools/performance.test.ts: Replaced the notoriously flaky waitUntil: ['networkidle0'] with 'load' when navigating to about:blank in performance_start_trace. This prevents random 10-second Navigation timeout exceeded errors. Also stubbed goto in the associated unit tests for better hermeticity. • src/McpContext.ts: Wrapped browser.installExtension() with a 15-second timeout to prevent deadlocks when an extension fails to load. • tests/tools/extensions.test.ts: Removed flaky headless UI navigations to chrome://extensions in favor of using the context.listExtensions() API. • tests/tools/pages.test.js.snapshot: Synced test snapshots to reflect updated environment baselines.
52 行
3.3 KiB
Plaintext
52 行
3.3 KiB
Plaintext
exports[`pages > close_page > when dialog is open 1`] = `
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{"content":[{"type":"text","text":"Note: the previously selected page was closed. Page 1 is now selected.\\n## Pages\\n1: about:blank [selected]"}],"structuredContent":{"pages":[{"id":1,"url":"about:blank","title":"","selected":true}]}}
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`;
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exports[`pages > list_pages > list pages for extension pages with --category-extensions 1`] = `
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## Pages
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1: about:blank [selected]
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## Extension Pages
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2: chrome-extension://<extension-id>/popup.html
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`;
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exports[`pages > list_pages > list pages for extension service workers with --category-extensions 1`] = `
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## Pages
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1: about:blank [selected]
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## Extension Service Workers
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sw-1: chrome-extension://<extension-id>/sw.js
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`;
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exports[`pages > list_pages > list pages for extension service workers without --category-extensions 1`] = `
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## Pages
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1: about:blank [selected]
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`;
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exports[`pages > list_pages > list pages for side panels with --category-extensions 1`] = `
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## Pages
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1: about:blank
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## Extension Pages
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2: Side Panel (chrome-extension://<extension-id>/sidepanel.html) [selected]
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## Extension Service Workers
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sw-1: chrome-extension://<extension-id>/sw.js
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`;
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exports[`pages > list_pages > when dialog is open 1`] = `
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{"content":[{"type":"text","text":"# Open dialog\\nalert: test dialog.\\nCall handle_dialog to handle it before continuing.\\n## Pages\\n1: about:blank [selected]"}],"structuredContent":{"dialog":{"type":"alert","message":"test dialog","defaultValue":""},"pages":[{"id":1,"url":"about:blank","title":"","selected":true}]}}
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`;
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exports[`pages > navigate_page > when dialog is open 1`] = `
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{"content":[{"type":"text","text":"Successfully navigated to data:text/html,<div>Navigated</div>.\\n# Open dialog\\nalert: test dialog.\\nCall handle_dialog to handle it before continuing.\\n## Pages\\n1: data:text/html,<div>Navigated</div> [selected]"}],"structuredContent":{"message":"Successfully navigated to data:text/html,<div>Navigated</div>.","dialog":{"type":"alert","message":"test dialog","defaultValue":""},"pages":[{"id":1,"url":"data:text/html,<div>Navigated</div>","title":"","selected":true}]}}
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`;
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exports[`pages > new_page with isolatedContext > when dialog is open 1`] = `
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{"content":[{"type":"text","text":"# Open dialog\\nalert: test dialog.\\nCall handle_dialog to handle it before continuing.\\n## Pages\\n1: about:blank\\n2: data:text/html,<html></html> [selected]"}],"structuredContent":{"dialog":{"type":"alert","message":"test dialog","defaultValue":""},"pages":[{"id":1,"url":"about:blank","title":"","selected":false},{"id":2,"url":"data:text/html,<html></html>","title":"","selected":true}]}}
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`;
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exports[`pages > resize > when dialog is open 1`] = `
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{"content":[{"type":"text","text":"# Open dialog\\nalert: test dialog.\\nCall handle_dialog to handle it before continuing.\\n## Pages\\n1: about:blank [selected]"}],"structuredContent":{"dialog":{"type":"alert","message":"test dialog","defaultValue":""},"pages":[{"id":1,"url":"about:blank","title":"","selected":true}]}}
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`;
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exports[`pages > select_page > when dialog is open 1`] = `
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{"content":[{"type":"text","text":"# Open dialog\\nalert: test dialog.\\nCall handle_dialog to handle it before continuing.\\n## Pages\\n1: about:blank [selected]"}],"structuredContent":{"dialog":{"type":"alert","message":"test dialog","defaultValue":""},"pages":[{"id":1,"url":"about:blank","title":"","selected":true}]}}
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`;
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