chore(deps)(deps-dev): bump @nestjs/testing from 11.2.1 to 12.0.1

[dependabot]

Bumps @nestjs/testing from 11.2.1 to 12.0.1.

Release notes

Sourced from @​nestjs/testing's releases.

v12.0.0

NestJS v12.0.0

NestJS 12 is centered around ESM-ready packages, first-class Standard Schema support for validation and serialization, a rebuilt CLI, and native observability through the new @nestjs/observe SDK.

Existing CommonJS applications keep working — migrating your own code to ESM is entirely optional.

📖 Full migration guide

---

Upgrading

Upgrade the CLI first, since the upgrade command ships with it:

npm i -g @nestjs/cli@latest

Then, from the root of your project:

nest upgrade

nest upgrade moves every @nestjs/* package to its v12-compatible major at once and applies the mechanical parts of the migration for you — nest-cli.json webpack options, the GraphQL playground → graphiql rename and subscriptions transport swap, the NATS package replacement, @nestjs/config validation options, Jest and Joi bumps — then prints a report of everything it changed and everything you still need to review by hand. Run it with --dry-run first to see that report without touching your files.

It deliberately does not migrate your project to ESM, Vitest, or oxlint. Those are the defaults for newly generated projects; existing projects adopt them on their own schedule.

Node.js: v12 requires Node.js v20.19+ or v22.12+. Both require(esm) and the ESM packages depend on it; the upgrade command refuses to run on older releases (including the 21.x line). The latest active LTS is recommended.

---

Highlights

ESM packages

All core Nest packages now ship as ESM. Thanks to require(esm) in modern Node.js, most existing CommonJS applications continue to work without a rewrite. Review custom bootstrapping scripts, build tooling, and test runners if they assume CommonJS-only packages.

nest new now asks whether to scaffold a CommonJS or an ESM project.

Standard Schema validation

Route parameter decorators — @Body(), @Query(), @Param(), @RawBody() — accept a new schema option, designed for Standard Schema compatible libraries such as Zod, Valibot, and ArkType:

@Post()
create(@Body({ schema: createUserSchema }) body: CreateUserDto) {
  return this.usersService.create(body);
}
</tr></table> 

... (truncated)

Commits

• 4c751c5 chore(release): publish v12.0.1 release
• 3c25112 chore: update peer deps
• 6494a6c chore(release): publish v12.0.0 release
• edb0034 Merge branch 'master' into v12.0.0
• e255755 chore: resolve conflicts, minor fixes
• 5d1b19b Merge branch 'master' into v12.0.0
• eb49dd1 test(testing): Add unit tests for @​nestjs/testing package
• 68dfc23 Merge branch 'master' into v12.0.0
• c470ddf Merge branch 'master' into v12.0.0
• 415e4d3 fix(testing): use try load package insted (dummy load)
• Additional commits viewable in compare view

[dependabot]

Labels

The following labels could not be found: npm. Please create it before Dependabot can add it to a pull request.

Please fix the above issues or remove invalid values from dependabot.yml.

[dependabot]

Looks like @nestjs/testing is up-to-date now, so this is no longer needed.