Example configuration for running Jest integration tests with Prisma and Postgres using isolated database schemas per test suite.
Prisma + Postgres + Jest is an example project that demonstrates how to configure Jest for integration testing with Prisma and PostgreSQL. It solves the problem of test isolation by creating unique database schemas for each test suite, allowing concurrent execution and preventing data contamination. This setup ensures reliable and deterministic integration tests for applications using Prisma as an ORM.
Developers building applications with Prisma and PostgreSQL who need to write integration tests with proper database isolation. It's particularly useful for teams requiring concurrent test execution and clean test environments.
It provides a ready-to-use configuration for isolated database testing, eliminating the need to manually manage test databases. The unique schema-per-test approach ensures tests are independent, repeatable, and can run in parallel without conflicts.
Example showcasing how to use Prisma + Postgres + Jest, where each test has its own unique DB context
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
Each test suite creates a unique temporary schema, preventing data contamination and ensuring test independence, as detailed in the README's description of schema isolation.
Schema isolation allows multiple test suites to run in parallel, improving test run times, which is highlighted in the project's philosophy for deterministic testing.
Temporary schemas are automatically removed after each test suite, reducing manual cleanup efforts and maintaining a clean state, as mentioned in the README.
Automatically applies the latest Prisma migrations to each test schema via `prisma migrate up --experimental`, ensuring up-to-date database schemas for tests.
Includes a Docker Compose file for easy local Postgres management, simplifying development environment setup, as outlined in the README's setup instructions.
Requires Docker for database setup, which may not be available in all environments and adds complexity, especially for teams unfamiliar with containerization.
Specifically designed for PostgreSQL; adapting it for other databases supported by Prisma would require significant modifications to the custom test environment.
Involves setting up a custom Jest test environment and Docker, which can be cumbersome for simple projects or developers new to these tools.
Uses `prisma migrate up --experimental`, which might be unstable or change in future Prisma versions, as noted in the README, risking compatibility issues.