In test environment, Error: Schema must contain uniquely named types but contains multiple types

[zfanta]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

Minimum reproduction code has two packages apps/api and packages/prisma. packages/prisma use prisma-nestjs-graphql.
Test environment uses vitest. In test environment, all tests fail with Error: Schema must contain uniquely named types but contains multiple types named "LocalDate".

Minimum reproduction code

https://github.com/zfanta/nest-graphql-error

Steps to reproduce

1. pnpm i
2. pnpm run dev:api (fine)
3. pnpm run test (error)

Expected behavior

No schema error in test environment

Package version

13.0.2

Graphql version

graphql: 16.10.0
@apollo/server: 4.11.3

NestJS version

11.0.7

Node.js version

22.14.0

In which operating systems have you tested?

• macOS
• Windows
• Linux

Other

pnpm: 10.4.1

In test environment, !typeSet.has(namedType) is true. in dev environment !typeSet.has(namedType) is false

[kamilmysliwiec]

Thank you for taking the time to submit your report! From the looks of it, this could be better discussed on our Discord. If you haven't already, please join here and send a new post in the #⁠ 🐈 nestjs-help forum. Make sure to include a link to this issue, so you don't need to write it all again. We have a large community of helpful members, who will assist you in getting this to work.