test({react,preact,solid}-query/useMutation): improve callback assertions with 'toHaveBeenNthCalledWith' by sukvvon · Pull Request #11050 · TanStack/query

sukvvon · 2026-07-11T06:21:38Z

🎯 Changes

Applies the same strengthening as #9630 (svelte-query) to the react/preact/solid useMutation callback tests. In the "multiple mutate calls" tests, the mutate button is clicked three times sequentially, so onSuccess/onSettled/onError fire in a deterministic order with distinct arguments (1, 2, 3).

The assertions used order-agnostic toHaveBeenCalledWith(1)/(2)/(3), which would still pass if the callbacks fired in the wrong order. Switching to toHaveBeenNthCalledWith(1, 1)/(2, 2)/(3, 3) pins each call to its position, matching the intent of "the correct arguments after each mutate".

✅ Checklist

I have followed the steps in the Contributing guide.
I have tested this code locally.

🚀 Release Impact

This change is docs/CI/dev-only (no release).

Summary by CodeRabbit

Tests
- Strengthened coverage for mutation callbacks across supported frameworks.
- Tests now verify that success, error, and completion callbacks run in the expected order for multiple consecutive mutations.
- Added checks to ensure each callback receives the result or error associated with the correct mutation attempt.

…ions with 'toHaveBeenNthCalledWith'

nx-cloud · 2026-07-11T06:22:05Z

View your CI Pipeline Execution ↗ for commit 5eef12e

Command	Status	Duration	Result
`nx run-many --target=build --exclude=examples/*...`	✅ Succeeded	49s	View ↗

☁️ Nx Cloud last updated this comment at 2026-07-11 06:36:06 UTC

coderabbitai · 2026-07-11T06:22:10Z

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: dd61a005-bfe7-4ee3-96aa-c77d92248eeb

📥 Commits

Reviewing files that changed from the base of the PR and between 72e90c8 and 5eef12e.

📒 Files selected for processing (3)

packages/preact-query/src/__tests__/useMutation.test.tsx
packages/react-query/src/__tests__/useMutation.test.tsx
packages/solid-query/src/__tests__/useMutation.test.tsx

📝 Walkthrough

Walkthrough

Mutation callback tests for Preact, React, and Solid now verify that success, error, and settled callbacks receive arguments in the expected invocation order across three mutation attempts.

Changes

Mutation callback order

Layer / File(s)	Summary
Ordered callback assertions `packages/*-query/src/__tests__/useMutation.test.tsx`	Success and failure tests use `toHaveBeenNthCalledWith` to verify callback arguments for the first, second, and third mutation attempts.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

TanStack/query#10914: Strengthens useMutation callback invocation assertions in the Solid test suite.
TanStack/query#10915: Adds related mutation callback sequence checks in the Solid test suite.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: stricter useMutation callback assertions using toHaveBeenNthCalledWith across react, preact, and solid tests.
Description check	✅ Passed	The description follows the required template and covers changes, checklist, and release impact with relevant details.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

Create stacked PR
Commit on current branch

🧪 Generate unit tests (beta)

Create PR with unit tests
Commit unit tests in branch test/mutation-callback-nth

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github-actions · 2026-07-11T06:22:43Z

🚀 Changeset Version Preview

No changeset entries found. Merging this PR will not cause a version bump for any packages.

pkg-pr-new · 2026-07-11T06:35:03Z

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commit: 5eef12e

github-actions · 2026-07-11T06:36:07Z

size-limit report 📦

Path	Size
react full	12.13 KB (0%)
react minimal	9.08 KB (0%)

test({react,preact,solid}-query/useMutation): improve callback assert…
5eef12e
…ions with 'toHaveBeenNthCalledWith'

sukvvon self-assigned this Jul 11, 2026

sukvvon merged commit 0a852e0 into mainJul 11, 2026
11 of 12 checks passed

sukvvon deleted the test/mutation-callback-nth branch July 11, 2026 06:37

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test({react,preact,solid}-query/useMutation): improve callback assertions with 'toHaveBeenNthCalledWith' - #11050

test({react,preact,solid}-query/useMutation): improve callback assertions with 'toHaveBeenNthCalledWith'#11050
sukvvon merged 1 commit into
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