sdcorejs-testing-integration-nestjs

What problem does it solve?

Removes flaky, incomplete testing by validating NestJS service and repository logic with real TypeORM wiring and real SQL execution paths (without the HTTP server).

Core Features & Use Cases

• Integration coverage without HTTP: Exercises Test.createTestingModule DI container wiring plus repository + service behavior while skipping the HTTP layer.
• Fast DB realism with pg-mem: Runs against an in-memory Postgres (pg-mem) to validate queries, transactions, and constraints using a real DataSource.
• Boundary mocking at integration points: Mocks external APIs at the provider boundary (not at the HTTP-client level) to keep tests deterministic.
• Typical use cases: transaction semantics rollback checks, query correctness, business-logic error paths like ConflictException and NotFoundException, and permission/guard verification.

Quick Start

Use sdcorejs-testing-integration-nestjs to generate an integration spec that boots a real Nest testing module and a pg-mem TypeORM DataSource, seeds minimal lookup data, and asserts both happy-path and error-path behavior against the database state.