chore: prepare to reuse expect formatting logic

[dgozman]

No description provided.

[github-actions]

Test results for "tests 1"

11 failed
❌ [default] › debug-tests.spec.ts:380 › should run global setup before debugging @vscode-extension
❌ [default] › debug-tests.spec.ts:516 › should not pause at the end of a setup test @vscode-extension
❌ [default-reuse] › debug-tests.spec.ts:380 › should run global setup before debugging @vscode-extension
❌ [default-reuse] › debug-tests.spec.ts:516 › should not pause at the end of a setup test @vscode-extension
❌ [default-reuse] › watch.spec.ts:422 › should batch watched tests, not queue @vscode-extension
❌ [default-trace] › debug-tests.spec.ts:380 › should run global setup before debugging @vscode-extension
❌ [default-trace] › debug-tests.spec.ts:516 › should not pause at the end of a setup test @vscode-extension
❌ [firefox-library] › library/browsertype-launch.spec.ts:64 › should reject if launched browser fails immediately @firefox-ubuntu-22.04-node20
❌ [firefox-library] › library/launcher.spec.ts:44 › should throw a friendly error if its headed and there is no xserver on linux running @firefox-ubuntu-22.04-node20
❌ [playwright-test] › playwright.spec.ts:877 › page.pause() should disable test timeout @macos-latest-node20
❌ [playwright-test] › reporter-html.spec.ts:304 › created › should not include image diff with non-images @macos-latest-node20

6 flaky

⚠️ [chromium-library] › library/browsercontext-add-cookies.spec.ts:426 › should allow unnamed cookies `@ubuntu-22.04-chromium-tip-of-tree`
⚠️ [chromium-library] › library/beforeunload.spec.ts:130 › should support dismissing the dialog multiple times `@chromium-ubuntu-22.04-node20`
⚠️ [firefox-page] › page/page-event-request.spec.ts:182 › should return response body when Cross-Origin-Opener-Policy is set `@firefox-ubuntu-22.04-node20`
⚠️ [firefox-page] › page/page-route.spec.ts:1073 › does not get stalled by beforeUnload `@firefox-ubuntu-22.04-node20`
⚠️ [playwright-test] › ui-mode-test-output.spec.ts:118 › should collapse repeated console messages for test `@ubuntu-latest-node20`
⚠️ [playwright-test] › ui-mode-trace.spec.ts:748 › should partition action tree state by test `@macos-latest-node20`

34482 passed, 693 skipped

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Merge workflow run.

[github-actions]

Test results for "MCP"

4 failed
❌ [chrome] › mcp/autowait.spec.ts:19 › racy navigation destroys context @mcp-windows-latest
❌ [chrome] › mcp/click.spec.ts:19 › browser_click @mcp-windows-latest
❌ [chrome] › mcp/click.spec.ts:48 › browser_click (double) @mcp-windows-latest
❌ [chrome] › mcp/click.spec.ts:77 › browser_click (right) @mcp-windows-latest

2 flaky

⚠️ [chrome] › mcp/cdp.spec.ts:24 › cdp server `@mcp-windows-latest`
⚠️ [chrome] › mcp/cdp.spec.ts:35 › cdp server reuse tab `@mcp-windows-latest`

2824 passed, 121 skipped

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Merge workflow run.