1) [chromium] › test/settings.spec.ts:23:7 › Settings › Should be persisted after reloading the page Error: Screenshot comparison failed: 461 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

1) [chromium] › test/settings.spec.ts:23:7 › Settings › Should be persisted after reloading the page Retry #1 ─────────────────────────────────────────────────────────────────────────────────────── Error: Screenshot comparison failed: 461 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

2) [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?1729755458188 - user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/130.0.6723.31 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|10:1729755455|23:username-localhost-8888|188:eyJ1c2VybmFtZSI6ICI4ZDI2ODNjZDgzYjk0ZWI1ODIxNDU3MTlhNjkyMjhlMSIsICJuYW1lIjogIkFub255bW91cyBLYWxlIiwgImRpc3BsYXlfbmFtZSI6ICJBbm9ueW1vdXMgS2FsZSIsICJpbml0aWFscyI6ICJBSyIsICJjb2xvciI6IG51bGx9|12fb3ee8f642bd80b447cb231daaad235819ddcc6073c37915b89f2ab1abd480; _xsrf=2|3f82e2a8|b733261042ca28de4ae3fad4dac0aaac|1729755455 - origin: http://localhost:8888 - referer: http://localhost:8888/notebooks/test-notebook-Notebook-Title-should-be-rendered-chromium/example.ipynb - x-xsrftoken: 2|3f82e2a8|b733261042ca28de4ae3fad4dac0aaac|1729755455 - sec-ch-ua: "Chromium";v="130", "HeadlessChrome";v="130", "Not?A_Brand";v="99" - 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

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('Open') Expected: visible Received: hidden Call log: - expect.toBeVisible with timeout 5000ms - waiting for getByRole('toolbar').getByText('Open') 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).toBeHidden() Locator: getByRole('toolbar').getByText('Open') Expected: hidden Received: visible Call log: - expect.toBeHidden with timeout 5000ms - waiting for getByRole('toolbar').getByText('Open') 52 | 53 | expect(toolbar.getByText('Rename')).toBeHidden(); > 54 | expect(toolbar.getByText('Open')).toBeHidden(); | ^ 55 | expect(toolbar.getByText('Delete')).toBeVisible(); 56 | }); 57 | at /home/runner/work/notebook/notebook/ui-tests/test/filebrowser.spec.ts:54:39

3) [firefox] › 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?1729755615300 - user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:131.0) Gecko/20100101 Firefox/131.0 - accept: */* - accept-encoding: gzip, deflate, br, zstd - host: localhost:8888 - accept-language: en-US - content-type: text/plain;charset=UTF-8 - content-length: 172 - referer: http://localhost:8888/notebooks/test-notebook-Notebook-Title-should-be-rendered-firefox/example.ipynb - x-xsrftoken: 2|43639b10|d00776a090ddf5c337e8911421c5d20c|1729755612 - origin: http://localhost:8888 - sec-fetch-dest: empty - sec-fetch-mode: cors - sec-fetch-site: same-origin - connection: keep-alive - cookie: username-localhost-8888=2|1:0|10:1729755612|23:username-localhost-8888|212:eyJ1c2VybmFtZSI6ICJiNDY0Y2NmNzNkNTE0ZDA3ODE5MDIzYWE0NDViNmMyNiIsICJuYW1lIjogIkFub255bW91cyBQaGlsb3Bocm9zeW5lIiwgImRpc3BsYXlfbmFtZSI6ICJBbm9ueW1vdXMgUGhpbG9waHJvc3luZSIsICJpbml0aWFscyI6ICJBUCIsICJjb2xvciI6IG51bGx9|6d02148d405f3a20c0ba209c71a2eebf488b9493fd31a00b094d292a4feb7030; _xsrf=2|43639b10|d00776a090ddf5c337e8911421c5d20c|1729755612 " 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

3) [firefox] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ────────────────── Error: Test ended. Browser logs: [pid=9697][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9697][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][err] JavaScript error: chrome://juggler/content/Helper.js, line 82: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener] [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 76: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9697][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9697][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9697][err] JavaScript error: chrome://juggler/content/Helper.js, line 82: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener] [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 76: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9697][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9697][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9697][err] JavaScript error: chrome://juggler/content/Helper.js, line 82: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener] [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 76: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9697][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9697][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=9697][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9697][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=9697][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=9697][out] c

1) [firefox] › test/settings.spec.ts:23:7 › Settings › Should be persisted after reloading the page Error: Screenshot comparison failed: 319 pixels (ratio 0.01 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/settings.spec.ts-snapshots/top-visible-firefox-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-settings-Settings-Sho-cda2b-ed-after-reloading-the-page-firefox/top-visible-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-settings-Settings-Sho-cda2b-ed-after-reloading-the-page-firefox/top-visible-diff.png 43 | await page.reload({ waitUntil: 'networkidle' }); 44 | await page.menu.getMenuItem(showHeaderPath); > 45 | expect(await page.screenshot()).toMatchSnapshot('top-visible.png', { | ^ 46 | maxDiffPixels: 300, 47 | }); 48 | }); at /home/runner/work/notebook/notebook/ui-tests/test/settings.spec.ts:45:37

1) [firefox] › test/settings.spec.ts:23:7 › Settings › Should be persisted after reloading the page Retry #1 ─────────────────────────────────────────────────────────────────────────────────────── Error: Screenshot comparison failed: 319 pixels (ratio 0.01 of all image pixels) are different. Expected: /home/runner/work/notebook/notebook/ui-tests/test/settings.spec.ts-snapshots/top-visible-firefox-linux.png Received: /home/runner/work/notebook/notebook/ui-tests/test-results/test-settings-Settings-Sho-cda2b-ed-after-reloading-the-page-firefox-retry1/top-visible-actual.png Diff: /home/runner/work/notebook/notebook/ui-tests/test-results/test-settings-Settings-Sho-cda2b-ed-after-reloading-the-page-firefox-retry1/top-visible-diff.png 43 | await page.reload({ waitUntil: 'networkidle' }); 44 | await page.menu.getMenuItem(showHeaderPath); > 45 | expect(await page.screenshot()).toMatchSnapshot('top-visible.png', { | ^ 46 | maxDiffPixels: 300, 47 | }); 48 | }); at /home/runner/work/notebook/notebook/ui-tests/test/settings.spec.ts:45:37

2) [firefox] › test/filebrowser.spec.ts:31:7 › File Browser › Select one file ──────────────────── Error: expect(locator).toBeVisible() Locator: getByRole('toolbar').getByText('Open') Expected: visible Received: hidden Call log: - expect.toBeVisible with timeout 5000ms - waiting for getByRole('toolbar').getByText('Open') 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

4) [firefox] › 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?1729755471941 - user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:131.0) Gecko/20100101 Firefox/131.0 - accept: */* - accept-encoding: gzip, deflate, br, zstd - host: localhost:8888 - accept-language: en-US - content-type: text/plain;charset=UTF-8 - content-length: 172 - referer: http://localhost:8888/notebooks/test-notebook-Notebook-Title-should-be-rendered-firefox/example.ipynb - x-xsrftoken: 2|fe600d1e|278e81e7c49dd93924212c38a4f0d18b|1729755464 - origin: http://localhost:8888 - sec-fetch-dest: empty - sec-fetch-mode: cors - sec-fetch-site: same-origin - connection: keep-alive - cookie: username-localhost-8888="2|1:0|10:1729755464|23:username-localhost-8888|192:eyJ1c2VybmFtZSI6ICI1Mzg2MWYzYjdiNzA0ZmI4OGExYTRiNGNkMGNkZGVjOCIsICJuYW1lIjogIkFub255bW91cyBDYXJwbyIsICJkaXNwbGF5X25hbWUiOiAiQW5vbnltb3VzIENhcnBvIiwgImluaXRpYWxzIjogIkFDIiwgImNvbG9yIjogbnVsbH0=|88f6915048585cabd455a682926e843bcc3c418d8298c0013476d16c43ac6b48"; _xsrf=2|fe600d1e|278e81e7c49dd93924212c38a4f0d18b|1729755464 " 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

4) [firefox] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ────────────────── Error: Test ended. Browser logs: [pid=5489][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][err] JavaScript error: chrome://juggler/content/Helper.js, line 82: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener] [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 76: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=5489][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=5489][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=5489][err] JavaScript error: chrome://juggler/content/Helper.js, line 82: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener] [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 76: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=5489][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=5489][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=5489][err] JavaScript error: chrome://juggler/content/Helper.js, line 82: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener] [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][err] JavaScript error: resource://gre/modules/SearchEngineSelector.sys.mjs, line 76: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=5489][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=5489][err] JavaScript error: resource:///modules/SearchModeSwitcher.sys.mjs, line 254: TypeError: engine is null [pid=5489][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=5489][err] JavaScript error: http://localhost:8888/static/notebook/5573.bundle.js, line 1: TypeError: s is undefined [pid=5489][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=5489][out] console.error: URLBar - Provider.UrlbarProviderSearchTips: ({}) [pid=5489][err] JavaScript error: resource:///modules/Searc

Process completed with exit code 1.

36 passed (1.7m)

1 failed [chromium] › test/settings.spec.ts:23:7 › Settings › Should be persisted after reloading the page 1 flaky [chromium] › test/notebook.spec.ts:24:7 › Notebook › Title should be rendered ────────────────── 34 passed (1.9m)

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 ─────────────────── 33 passed (2.1m)