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test(solid-query/useQuery): add test for string 'reconcile' option maintaining referential equality#10169

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sukvvon wants to merge 2 commits intoTanStack:mainfrom
sukvvon:test/solid-query-useBaseQuery-string-reconcile
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test(solid-query/useQuery): add test for string 'reconcile' option maintaining referential equality#10169
sukvvon wants to merge 2 commits intoTanStack:mainfrom
sukvvon:test/solid-query-useBaseQuery-string-reconcile

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@sukvvon sukvvon commented Feb 22, 2026 •
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🎯 Changes

Add a test to cover the string reconcile option path in reconcileFn (useBaseQuery.ts, lines 41-59).

The test verifies that when reconcile: 'id' is used:

  • After refetch with changed data (id: '2' done: false → true), Solid's reconcile updates items in-place
  • The array reference stays the same, so createEffect is not triggered again (states stays at length 1)

The existing test (should share equal data structures between query results) covers the function callback path (reconcile: (oldData, newData) => ..., lines 37-39), but the string key path (lines 41-59) was previously uncovered.

✅ 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

  • Tests
    • Added validation tests for data reconciliation behavior to ensure data references remain stable during updates and re-fetches do not cause unnecessary re-renders.

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changeset-bot bot commented Feb 22, 2026 •
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⚠️ No Changeset found

Latest commit: 0b0f835

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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coderabbitai bot commented Feb 22, 2026 •
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No actionable comments were generated in the recent review. 🎉

📝 Walkthrough

Walkthrough

Two test cases are added to validate that when the reconcile option is a string key, data returned by useQuery remains referentially equal across in-place updates and that re-fetching does not trigger additional renders due to reconciliation.

Changes

Cohort / File(s) Summary
Reconciliation Test Cases
packages/solid-query/src/__tests__/useQuery.test.tsx		 Added tests validating referential equality of data with string key reconciliation and verifying that refetch operations do not trigger unnecessary re-renders when reconciliation is applied.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 Hopping through the tests with glee,
Reconciliation's now fancy-free,
Same references, no extra renders,
Data integrity's best contenders! ✨

🚥 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 clearly and specifically describes the main change: adding a test for the string 'reconcile' option that maintains referential equality, which directly aligns with the primary objective of the PR.
Description check ✅ Passed The description follows the template structure, includes all required sections (Changes, Checklist with both items checked, Release Impact), and provides clear context about what the test covers and why it was needed.

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

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nx-cloud bot commented Feb 22, 2026 •
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View your CI Pipeline Execution ↗ for commit 0b0f835

Command Status Duration Result
nx affected --targets=test:sherif,test:knip,tes... ✅ Succeeded 1m 53s View ↗
nx run-many --target=build --exclude=examples/*... ✅ Succeeded 1s View ↗

☁️ Nx Cloud last updated this comment at 2026-02-22 16:55:45 UTC

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pkg-pr-new bot commented Feb 22, 2026

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commit: 0b0f835

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