Testing for your Svelte project
Expert testing for Svelte applications. We find and fix Svelte-specific bugs and performance issues that affect production apps. From $19.
Svelte testing issues we find
Common testing problems specific to Svelte applications.
Store subscriptions causing memory leaks
Manual store subscriptions ($: syntax works in components, but manual subscribe() calls in modules need explicit unsubscribe to avoid memory leaks).
Incorrect use of derived state
AI-generated Svelte code uses reactive statements ($:) for complex derived data without memoization, recalculating expensive operations on every state change.
No error page at route level
Missing +error.svelte pages, so when something goes wrong, users see SvelteKit's default error page instead of your brand's error experience.
What our Svelte testing covers
Unit tests
Tests for individual functions, utilities, and business logic. Catch bugs at the smallest level.
Component tests
Tests for React components — rendering, user interactions, state changes, and edge cases.
Integration tests
Tests for API endpoints, database operations, and multi-step workflows.
End-to-end tests
Full user flow tests that simulate real user behavior — signup, purchase, and critical paths.
Test infrastructure
Setting up Jest, Vitest, Playwright, or Cypress with proper configuration and CI integration.
CI/CD integration
Running tests automatically on every push so broken code never reaches production.
AI tools that generate Svelte code
Start with a self-serve audit
Get a professional testing of your Svelte project at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Do you offer testing for Svelte projects?
Yes. We provide testing specifically tailored to Svelte applications. We understand Svelte's ecosystem and the common issues that need attention before production use.
What Svelte testing issues do you typically find?
Common testing issues in Svelte projects include: store subscriptions causing memory leaks, incorrect use of derived state, no error page at route level. We identify and fix all of these.
How do I get started with Svelte testing?
Start with our code audit ($19) to get a clear picture of your Svelte project's testing needs. We'll provide a prioritized report and a fixed quote for any follow-up work.
How much does Svelte testing cost?
Start with our code audit at $19 to get a prioritized report of issues. From there, testing work is scoped with a fixed quote based on your project's specific needs. No hourly billing or surprises.
Related resources
Need Svelte testing help?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.