1) [documentation] › test/documentation/debugger.test.ts:276:7 › Debugger › Breakpoints panel ──── TypeError: Cannot read properties of undefined (reading 'click') at src/helpers/notebook.ts:886 884 | return false; 885 | } > 886 | await gutters[lineNumber].click(); | ^ 887 | return true; 888 | } 889 | at NotebookHelper.clickCellGutter (/home/runner/work/jupyterlab/jupyterlab/core/galata/src/helpers/notebook.ts:886:31) at setBreakpoint (/home/runner/work/jupyterlab/jupyterlab/core/galata/test/documentation/debugger.test.ts:357:3) at /home/runner/work/jupyterlab/jupyterlab/core/galata/test/documentation/debugger.test.ts:285:5

2) [documentation] › test/documentation/debugger.test.ts:306:7 › Debugger › Source panel ───────── TypeError: Cannot read properties of undefined (reading 'click') at src/helpers/notebook.ts:886 884 | return false; 885 | } > 886 | await gutters[lineNumber].click(); | ^ 887 | return true; 888 | } 889 | at NotebookHelper.clickCellGutter (/home/runner/work/jupyterlab/jupyterlab/core/galata/src/helpers/notebook.ts:886:31) at setBreakpoint (/home/runner/work/jupyterlab/jupyterlab/core/galata/test/documentation/debugger.test.ts:357:3) at /home/runner/work/jupyterlab/jupyterlab/core/galata/test/documentation/debugger.test.ts:315:5

3) [documentation] › test/documentation/general.test.ts:19:7 › General › Welcome ───────────────── Error: Screenshot comparison failed: 54 pixels (ratio 0.01 of all image pixels) are different. Expected: /home/runner/work/jupyterlab/jupyterlab/core/galata/test-results/test-documentation-general-General-Welcome-documentation/jupyterlab-expected.png Received: /home/runner/work/jupyterlab/jupyterlab/core/galata/test-results/test-documentation-general-General-Welcome-documentation/jupyterlab-actual.png Diff: /home/runner/work/jupyterlab/jupyterlab/core/galata/test-results/test-documentation-general-General-Welcome-documentation/jupyterlab-diff.png 77 | await page.mouse.up(); 78 | > 79 | expect(await page.screenshot()).toMatchSnapshot('jupyterlab.png'); | ^ 80 | }); 81 | 82 | test('Overview', async ({ page }) => { at /home/runner/work/jupyterlab/jupyterlab/core/galata/test/documentation/general.test.ts:79:37

The following actions uses node12 which is deprecated and will be forced to run on node16: ifaxity/wait-on-action@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/