test(preact-query/ssr): add test for 'useMutationState' returning empty array by sukvvon · Pull Request #10149 · TanStack/query

sukvvon · 2026-02-18T09:20:36Z

🎯 Changes

Add SSR test for useMutationState called without options, covering the default options parameter (= {}).

This mirrors the existing test in react-query (ssr.test.tsx) that was missing in preact-query.

✅ Checklist

I have followed the steps in the Contributing guide.
I have tested this code locally with pnpm run test:pr.

🚀 Release Impact

This change affects published code, and I have generated a changeset.
This change is docs/CI/dev-only (no release).

Summary by CodeRabbit

New Features
- Added useMutationState hook to the public API, enabling users to access and track mutation state with full support for server-side rendering.

…ty array

changeset-bot · 2026-02-18T09:20:45Z

⚠️ No Changeset found

Latest commit: 345734a

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coderabbitai · 2026-02-18T09:20:55Z

No actionable comments were generated in the recent review. 🎉

📝 Walkthrough

Walkthrough

A new SSR test was added to the preact-query package testing the useMutationState hook. The test verifies that the hook works correctly during server-side rendering by rendering a component that uses the hook and asserting the expected state output.

Changes

Cohort / File(s)	Summary
SSR Test for useMutationState `packages/preact-query/src/__tests__/ssr.test.tsx`	Added test case for `useMutationState` hook in SSR context, including component rendering and assertion of mutationState length.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Suggested labels

package: preact-query

Poem

🐰 A hook takes flight through SSR's misty air,
MutationState whispers secrets without a care,
Rendered to string with query cache swept clean,
The test hops forward with logic pristine! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: adding an SSR test for useMutationState that returns an empty array, which is specific and descriptive.
Description check	✅ Passed	The description follows the template structure completely, includes all required sections, explains the change motivation clearly, and indicates release impact appropriately.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

🧪 Generate unit tests (beta)

Create PR with unit tests
Post copyable unit tests in a comment

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nx-cloud · 2026-02-18T09:21:06Z

View your CI Pipeline Execution ↗ for commit 345734a

Command	Status	Duration	Result
`nx affected --targets=test:sherif,test:knip,tes...`	✅ Succeeded	1m 20s	View ↗
`nx run-many --target=build --exclude=examples/*...`	✅ Succeeded	<1s	View ↗

☁️ Nx Cloud last updated this comment at 2026-02-18 09:23:12 UTC

pkg-pr-new · 2026-02-18T09:22:28Z

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commit: 345734a

test(preact-query/ssr): add test for 'useMutationState' returning emp…

345734a

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github-actions bot added the package: preact-query label Feb 18, 2026

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test(preact-query/ssr): add test for 'useMutationState' returning empty array#10149

test(preact-query/ssr): add test for 'useMutationState' returning empty array#10149
sukvvon wants to merge 1 commit intoTanStack:mainfrom
sukvvon:test/preact-query-ssr-useMutationState

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sukvvon commented Feb 18, 2026 •

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