[9.5] [ML] Fix flaky source_selection test by asserting against the visible callout copy (#280705)#280875
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… callout copy (elastic#280705) Fixes elastic#280686 - likely introduced by elastic#235054 (cc `@paulinashakirova`) ### Summary - The `analyticsCreateSourceIndexModalCcsErrorCallOut` callout is rendered with `announceOnMount`, so EUI mounts a screen-reader `role="status"` copy of the title (and body) alongside the visible copy. - Three positive assertions used single-match `queryByText(...)`, which throws `Found multiple elements` whenever the SR copy is present — a timing-dependent flake. - This patch switches those three assertions to `getAllByText(...)[0]`, asserting against the visible copy (which precedes the live-region copy in the DOM). No production change — `announceOnMount` is intended a11y behavior. ### Context - Follows the [failed-test investigator's proposed fix](elastic#280686 (comment)) exactly (the already-merged `getAllByText(...)[0]` pattern from elastic#269061). - Failure was on `main` in the `kibana-on-merge` Jest lane ([build 103893](https://buildkite.com/elastic/kibana-on-merge/builds/103893#019f9342-9398-4616-9954-22fbe43a9695)); the `announceOnMount` copy is populated on a `setTimeout`, so whether the duplicate exists when the assertion runs is a race. - Also fixes the identical title+body assertions in the sibling test (subject of elastic#254968), which carry the same bug. <details> <summary>Verification</summary> #### Verified locally - `✅ Passed: node scripts/eslint x-pack/platform/plugins/shared/ml/public/application/data_frame_analytics/pages/analytics_management/components/source_selection/source_selection.test.tsx` - `✅ Passed: node scripts/jest x-pack/platform/plugins/shared/ml/public/application/data_frame_analytics/pages/analytics_management/components/source_selection/source_selection.test.tsx` — all 5 tests pass #### Not verified locally - `node scripts/type_check --project x-pack/platform/plugins/shared/ml/tsconfig.json` was killed by the sandbox's memory limit (SIGKILL) before completing, twice. The change is a test-only edit using standard `@testing-library/react` APIs (`getAllByText(...)[0]` returns an `HTMLElement`) and introduces no new types. </details> <details> <summary>Backporting guidance</summary> Applied `backport:version` with `v9.5.0`, `v9.4.5`, and `v9.3.9`. The `announceOnMount` root cause was introduced by elastic#235054 (`v9.3.0`), and the test file exists unchanged on the `9.5`, `9.4`, and `9.3` release branches, so the patch applies there cleanly. The `8.19` branch predates `announceOnMount` (no duplicate copy, no flake), so it is excluded. </details> > [!NOTE] > Share feedback in #kibana-qa. Mention `@copilot` to make quick changes. > Generated by [Flaky Test Fixer](https://github.com/elastic/kibana/actions/runs/30081512525) for elastic#280686 · 229.9 AIC · ⌖ 11.5 AIC · ⊞ 672 · [◷](https://github.com/search?q=repo%3Aelastic%2Fkibana+%22gh-aw-workflow-id%3A+flaky-test-fixer%22&type=pullrequests) <!-- gh-aw-agentic-workflow: Flaky Test Fixer, engine: claude, version: 2.1.165, model: opus, id: 30081512525, workflow_id: flaky-test-fixer, run: https://github.com/elastic/kibana/actions/runs/30081512525 --> <!-- gh-aw-workflow-id: flaky-test-fixer --> <!-- gh-aw-workflow-call-id: elastic/kibana/flaky-test-fixer --> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> (cherry picked from commit d4e18e0)
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