Shopify App Testing

Reliable testing is crucial for ensuring your app handles Shopify's authentication and API quirks correctly.

1. Unit & Integration Testing (Vitest + Remix)

Use Vitest for running unit and integration tests in the Remix environment.

Setup

Install dependencies:

npm install -D vitest @testing-library/react @testing-library/jest-dom jsdom

Mocking shopify.server.ts

Creating a mock for the authenticate object is critical for testing loaders and actions without hitting real Shopify APIs.