1) [chromium] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ───────────────── Error: "apiRequestContext.fetch: Target page, context or browser has been closed Call log: - → POST http://localhost:8888/api/sessions?1729621685399 - user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/128.0.6613.18 Safari/537.36 - accept: */* - accept-encoding: gzip,deflate,br - accept-language: en-US - content-type: text/plain;charset=UTF-8 - cookie: username-localhost-8888="2|1:0|10:1729621682|23:username-localhost-8888|196:eyJ1c2VybmFtZSI6ICIyNDlmN2FmZGM2N2M0Zjk3ODU2NGFhMDMzYjI1YjcwZCIsICJuYW1lIjogIkFub255bW91cyBTaW5vcGUiLCAiZGlzcGxheV9uYW1lIjogIkFub255bW91cyBTaW5vcGUiLCAiaW5pdGlhbHMiOiAiQVMiLCAiY29sb3IiOiBudWxsfQ==|fb03ba0ac2bad03df3426cf49029c20d00a1d95a0429a9c7e9de3d011d4fb692"; _xsrf=2|1001264d|e58c301688668f56fa68002b85dfdef3|1729621682 - origin: http://localhost:8888 - referer: http://localhost:8888/notebooks/test-notebook-Notebook-Title-should-be-rendered-chromium/example.ipynb - x-xsrftoken: 2|1001264d|e58c301688668f56fa68002b85dfdef3|1729621682 - sec-ch-ua: "Chromium";v="128", "Not;A=Brand";v="24", "HeadlessChrome";v="128" - sec-ch-ua-mobile: ?0 - sec-ch-ua-platform: "Linux" - content-length: 173 " while running route callback. Consider awaiting `await page.unrouteAll({ behavior: 'ignoreErrors' })` before the end of the test to ignore remaining routes in flight. at /home/runner/work/notebook/notebook/ui-tests/node_modules/@jupyterlab/galata/src/galata.ts:961:49

1) [chromium] › test/menus.spec.ts:37:9 › Notebook Menus › Open menu item View ─────────────────── Error: Screenshot comparison failed: Expected an image 369px by 648px, received 369px by 672px. 7213 pixels (ratio 0.03 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/menus.spec.ts-snapshots/opened-menu-view-chromium-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-menus-Notebook-Menus-Open-menu-item-View-chromium/opened-menu-view-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-menus-Notebook-Menus-Open-menu-item-View-chromium/opened-menu-view-diff.png 45 | const menu = await page.menu.getOpenMenu(); 46 | expect(menu).toBeDefined(); > 47 | expect(await menu?.screenshot()).toMatchSnapshot(imageName.toLowerCase()); | ^ 48 | }); 49 | }); 50 | }); at /home/runner/work/notebook/notebook/ui-tests/test/menus.spec.ts:47:40

1) [chromium] › test/menus.spec.ts:37:9 › Notebook Menus › Open menu item View ─────────────────── Retry #1 ─────────────────────────────────────────────────────────────────────────────────────── Error: Screenshot comparison failed: Expected an image 369px by 648px, received 369px by 672px. 7213 pixels (ratio 0.03 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/menus.spec.ts-snapshots/opened-menu-view-chromium-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-menus-Notebook-Menus-Open-menu-item-View-chromium-retry1/opened-menu-view-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-menus-Notebook-Menus-Open-menu-item-View-chromium-retry1/opened-menu-view-diff.png 45 | const menu = await page.menu.getOpenMenu(); 46 | expect(menu).toBeDefined(); > 47 | expect(await menu?.screenshot()).toMatchSnapshot(imageName.toLowerCase()); | ^ 48 | }); 49 | }); 50 | }); at /home/runner/work/notebook/notebook/ui-tests/test/menus.spec.ts:47:40

2) [chromium] › test/settings.spec.ts:23:7 › Settings › Should be persisted after reloading the page Error: Screenshot comparison failed: 489 pixels (ratio 0.01 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/settings.spec.ts-snapshots/top-hidden-chromium-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-settings-Settings-Sho-cda2b-ed-after-reloading-the-page-chromium/top-hidden-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-settings-Settings-Sho-cda2b-ed-after-reloading-the-page-chromium/top-hidden-diff.png 34 | await page.reload({ waitUntil: 'networkidle' }); 35 | await page.menu.getMenuItem(showHeaderPath); > 36 | expect(await page.screenshot()).toMatchSnapshot('top-hidden.png', { | ^ 37 | maxDiffPixels: 300, 38 | }); 39 | at /home/runner/work/notebook/notebook/ui-tests/test/settings.spec.ts:36:37

2) [chromium] › test/settings.spec.ts:23:7 › Settings › Should be persisted after reloading the page Retry #1 ─────────────────────────────────────────────────────────────────────────────────────── Error: Screenshot comparison failed: 489 pixels (ratio 0.01 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/settings.spec.ts-snapshots/top-hidden-chromium-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-settings-Settings-Sho-cda2b-ed-after-reloading-the-page-chromium-retry1/top-hidden-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-settings-Settings-Sho-cda2b-ed-after-reloading-the-page-chromium-retry1/top-hidden-diff.png 34 | await page.reload({ waitUntil: 'networkidle' }); 35 | await page.menu.getMenuItem(showHeaderPath); > 36 | expect(await page.screenshot()).toMatchSnapshot('top-hidden.png', { | ^ 37 | maxDiffPixels: 300, 38 | }); 39 | at /home/runner/work/notebook/notebook/ui-tests/test/settings.spec.ts:36:37

3) [chromium] › test/mobile.spec.ts:30:7 › Mobile › The layout should be more compact on the file browser page Error: Screenshot comparison failed: 405 pixels (ratio 0.01 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/mobile.spec.ts-snapshots/tree-chromium-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-mobile-Mobile-The-lay-60036-ct-on-the-file-browser-page-chromium/tree-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-mobile-Mobile-The-lay-60036-ct-on-the-file-browser-page-chromium/tree-diff.png 36 | await page.waitForSelector('#top-panel-wrapper', { state: 'hidden' }); 37 | > 38 | expect(await page.screenshot()).toMatchSnapshot('tree.png', { | ^ 39 | maxDiffPixels: 300, 40 | }); 41 | }); at /home/runner/work/notebook/notebook/ui-tests/test/mobile.spec.ts:38:37

Process completed with exit code 1.

1) [firefox] › test/filebrowser.spec.ts:31:7 › File Browser › Select one file ──────────────────── Error: expect(locator).toBeVisible() Locator: getByRole('toolbar').getByText('Download') Expected: visible Received: hidden Call log: - expect.toBeVisible with timeout 5000ms - waiting for getByRole('toolbar').getByText('Download') 37 | 38 | ['Rename', 'Delete', 'Open', 'Download', 'Delete'].forEach(async (text) => { > 39 | expect(toolbar.getByText(text)).toBeVisible(); | ^ 40 | }); 41 | }); 42 | at forEach (/home/runner/work/notebook/notebook/ui-tests/test/filebrowser.spec.ts:39:39) at /home/runner/work/notebook/notebook/ui-tests/test/filebrowser.spec.ts:38:56

2) [firefox] › test/filebrowser.spec.ts:43:7 › File Browser › Select files and folders ─────────── Error: expect(locator).toBeVisible() Locator: getByRole('toolbar').getByText('Delete') Expected: visible Received: hidden Call log: - expect.toBeVisible with timeout 5000ms - waiting for getByRole('toolbar').getByText('Delete') 53 | expect(toolbar.getByText('Rename')).toBeHidden(); 54 | expect(toolbar.getByText('Open')).toBeHidden(); > 55 | expect(toolbar.getByText('Delete')).toBeVisible(); | ^ 56 | }); 57 | 58 | test('Select files and open', async ({ page, tmpPath }) => { at /home/runner/work/notebook/notebook/ui-tests/test/filebrowser.spec.ts:55:41

3) [firefox] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ────────────────── Error: Response has been disposed at /home/runner/work/notebook/notebook/ui-tests/node_modules/@jupyterlab/galata/src/galata.ts:901:29

3) [firefox] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ────────────────── Error: Test ended. Browser logs: [pid=9031][err] *** You are running in headless mode. [pid=9031][err] JavaScript warning: resource://services-settings/Utils.sys.mjs, line 114: unreachable code after return statement [pid=9031][out] console.warn: services.settings: Ignoring preference override of remote settings server [pid=9031][out] console.warn: services.settings: Allow by setting MOZ_REMOTE_SETTINGS_DEVTOOLS=1 in the environment [pid=9031][out] Crash Annotation GraphicsCriticalError: |[0][GFX1-]: glxtest: Unable to open a connection to the X server (t=0.23645) [GFX1-]: glxtest: Unable to open a connection to the X server [pid=9031][out] console.error: ({}) [pid=9031][out] [pid=9031][out] Juggler listening to the pipe [pid=9031][out] console.error: ({}) [pid=9031][out] console.error: SearchEngineSelector: "Received empty search configuration!" [pid=9031][out] console.error: "Received empty top sites configuration!" [pid=9031][out] console.error: SearchEngineSelector: "Received empty search configuration!" [pid=9031][out] console.error: SearchService: "#init: failure initializing search:" ({}) [pid=9031][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 73: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=9031][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 73: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=9031][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 73: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=9031][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 73: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=9031][out] console.error: "Received empty top sites configuration!" [pid=9031][out] console.error: WebExtensions: [pid=9031][out] Message: [Exception... "Failed to get engine data from Remote Settings" nsresult: "0x8000ffff (NS_ERROR_UNEXPECTED)" location: "JS frame :: resource://gre/modules/SearchEngineSelector.sys.mjs :: getEngineConfiguration :: line 73" data: no] [pid=9031][out] Stack: [pid=9031][out] getEngineConfiguration@resource://gre/modules/SearchEngineSelector.sys.mjs:73:24 [pid=9031][out] [pid=9031][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9031][out] console.error: SearchSettings: "_write: Could not write to settings file:" (new Error("cannot write without any engine.", "resource://gre/modules/SearchSettings.sys.mjs", 303)) [pid=9031][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9031][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9031][err] JavaScript error: chrome://juggler/content/Helper.js, line 82: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener] [pid=9031][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 73: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=9031][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9031][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9031][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9031][err] JavaScript error: chrome://juggler/content/Helper.js, line 82: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener] [pid=9031][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 73: NS_ERROR_UNEXPECTED: Failed to get engine data from Rem

1) [firefox] › test/menus.spec.ts:37:9 › Notebook Menus › Open menu item View ──────────────────── Error: Screenshot comparison failed: Expected an image 369px by 648px, received 369px by 673px. 9721 pixels (ratio 0.04 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/menus.spec.ts-snapshots/opened-menu-view-firefox-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-menus-Notebook-Menus-Open-menu-item-View-firefox/opened-menu-view-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-menus-Notebook-Menus-Open-menu-item-View-firefox/opened-menu-view-diff.png 45 | const menu = await page.menu.getOpenMenu(); 46 | expect(menu).toBeDefined(); > 47 | expect(await menu?.screenshot()).toMatchSnapshot(imageName.toLowerCase()); | ^ 48 | }); 49 | }); 50 | }); at /home/runner/work/notebook/notebook/ui-tests/test/menus.spec.ts:47:40

1) [firefox] › test/menus.spec.ts:37:9 › Notebook Menus › Open menu item View ──────────────────── Retry #1 ─────────────────────────────────────────────────────────────────────────────────────── Error: Screenshot comparison failed: Expected an image 369px by 648px, received 369px by 673px. 9721 pixels (ratio 0.04 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/menus.spec.ts-snapshots/opened-menu-view-firefox-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-menus-Notebook-Menus-Open-menu-item-View-firefox-retry1/opened-menu-view-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-menus-Notebook-Menus-Open-menu-item-View-firefox-retry1/opened-menu-view-diff.png 45 | const menu = await page.menu.getOpenMenu(); 46 | expect(menu).toBeDefined(); > 47 | expect(await menu?.screenshot()).toMatchSnapshot(imageName.toLowerCase()); | ^ 48 | }); 49 | }); 50 | }); at /home/runner/work/notebook/notebook/ui-tests/test/menus.spec.ts:47:40

2) [firefox] › test/filebrowser.spec.ts:31:7 › File Browser › Select one file ──────────────────── Error: expect(locator).toBeVisible() Locator: getByRole('toolbar').getByText('Download') Expected: visible Received: hidden Call log: - expect.toBeVisible with timeout 5000ms - waiting for getByRole('toolbar').getByText('Download') 37 | 38 | ['Rename', 'Delete', 'Open', 'Download', 'Delete'].forEach(async (text) => { > 39 | expect(toolbar.getByText(text)).toBeVisible(); | ^ 40 | }); 41 | }); 42 | at forEach (/home/runner/work/notebook/notebook/ui-tests/test/filebrowser.spec.ts:39:39) at /home/runner/work/notebook/notebook/ui-tests/test/filebrowser.spec.ts:38:56

3) [firefox] › test/filebrowser.spec.ts:43:7 › File Browser › Select files and folders ─────────── Error: expect(locator).toBeVisible() Locator: getByRole('toolbar').getByText('Delete') Expected: visible Received: hidden Call log: - expect.toBeVisible with timeout 5000ms - waiting for getByRole('toolbar').getByText('Delete') 53 | expect(toolbar.getByText('Rename')).toBeHidden(); 54 | expect(toolbar.getByText('Open')).toBeHidden(); > 55 | expect(toolbar.getByText('Delete')).toBeVisible(); | ^ 56 | }); 57 | 58 | test('Select files and open', async ({ page, tmpPath }) => { at /home/runner/work/notebook/notebook/ui-tests/test/filebrowser.spec.ts:55:41

Process completed with exit code 1.

1 flaky [chromium] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ────────────────── 34 passed (1.8m)

2 failed [chromium] › test/menus.spec.ts:37:9 › Notebook Menus › Open menu item View ──────────────────── [chromium] › test/settings.spec.ts:23:7 › Settings › Should be persisted after reloading the page 1 flaky [chromium] › test/mobile.spec.ts:30:7 › Mobile › The layout should be more compact on the file browser page 32 passed (2.0m)

3 flaky [firefox] › test/filebrowser.spec.ts:31:7 › File Browser › Select one file ───────────────────── [firefox] › test/filebrowser.spec.ts:43:7 › File Browser › Select files and folders ──────────── [firefox] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ─────────────────── 32 passed (2.1m)