rn-testing
Test React Native Apps Reliably
React Native tests often fail when native modules, stores, and async flows are not mocked consistently. This skill provides practical Jest and React Native Testing Library patterns.
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Review the Skillstore skill "rn-testing" from https://skillstore.io/skills/cjharmath-rn-testing.md and its manifest at https://skillstore.io/api/skills/cjharmath-rn-testing/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.Your Agent should still show its plan and request any confirmation required by the security policy.
Agent-readable resources
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Test it
Using "rn-testing". User asks how to test a Zustand action that updates answers after an async call.
Expected outcome:
- Reset the store before each test with full-state replacement.
- Wrap the async action in act.
- Read fresh state before asserting the final answer value.
Using "rn-testing". User asks why a React Native test shows an act warning.
Expected outcome:
The response explains that an async update completed after the assertion. It recommends waiting for the final UI state.
Using "rn-testing". User asks how to mock Expo modules in Jest.
Expected outcome:
The response identifies required mocks for router, secure storage, constants, and haptics, then checks global Jest setup first.
Security Audit
SafeAll 29 static findings were adjudicated as false positives. The matches are markdown code fences, inline references, documented npm test commands, a local mock URL, and Object.keys in a test assertion. No prompt injection, malicious intent, credential handling, or live network behavior was found in SKILL.md.
Risk Factors
⚙️ External commands (27)
🌐 Network access (1)
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APA citation
CJHarmath. (2026). rn-testing security audit report (audit version 7) [Author version unspecified]. Skillstore. https://skillstore.io/skills/cjharmath-rn-testing/audits/7BibTeX citation
@techreport{cjharmath-cjharmath-rn-testing-2026,
author = {CJHarmath},
title = {rn-testing security audit report (audit version 7)},
institution = {Skillstore},
year = {2026},
number = {7},
url = {https://skillstore.io/skills/cjharmath-rn-testing/audits/7},
note = {Author version unspecified}
}CITATION.cff
cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "rn-testing security audit report (audit version 7)"
version: "unspecified"
type: report
authors:
- name: "CJHarmath"
date-released: "2026-07-06"
url: "https://skillstore.io/skills/cjharmath-rn-testing/audits/7"
identifiers:
- type: other
value: "skillstore:cjharmath-rn-testing:audit:7"
description: "Skillstore immutable audit report identifier"
Skillstore Score
Why this score Evidence Confidence: HighWhat You Can Build
Stabilize Store Tests
Reset Zustand state and verify async actions without cross-test leakage.
Mock Expo Modules
Create or review Jest mocks for routing, secure storage, constants, and haptics.
Debug Test Failures
Resolve act warnings, module mapping errors, async timeouts, and brittle snapshots.
Try These Prompts
Show me how to test a React Native component with React Native Testing Library. Include event handling and async assertions.
Help me write Jest tests for a Zustand store. Reset state before each test and verify async actions with act and waitFor.
Review this React Native test suite for flaky async behavior, missing Expo mocks, and brittle snapshots. Suggest focused changes.
Design a testing strategy for a React Native feature that uses Expo Router, React Query, Zustand, and generated API hooks. Include mocks and assertions.
Best Practices
- Reset shared store state before every test.
- Wait for async UI or store updates before asserting.
- Prefer behavior assertions over broad snapshots.
Avoid
- Do not rely on state left by previous tests.
- Do not snapshot dynamic lists or frequently changing screens.
- Do not duplicate mocks without checking global Jest setup.