Nx caching inputs missing for all projects using setupFiles or globalSetup in vitest.config.ts #1029

Update:
We have to re-evaluate the issue after #1142 is merged

What happened?

If I change something in a testing lib the packages using them over setupFiles or globalSetup in vitest.config.ts have a false cache hit.

The problem:
Project models als all other projects miss the dependencies to testing files referenced in vitest.config.ts.

What would you expect to happen?

If I change something in a testing lib the packages using them over setupFiles or globalSetup in vitest.config.ts do not have a cache hit.

Possible Solutions:

• add implicitDependencies to all relevant testing targets - quick but not fine-grained also the biggest downside is our build and any other target in the project would be affected. ⚠️
• add the used files from vitest.config.ts as target inputs/namedInputs - fine-grained but only maintainable over custom plugin that adds the inputs. But as the used filse in setupFiles or globalSetup change it has to be dynamically detected.
• create a config project handling the setupFiles and is directly depending on testing-setup (best)
  • test: introduce test-vitest-setup project to handle test setup for vite tests #1065

What steps did you take?

1. ✅ Test the project modles in packages/models and verify cache hit

  # [existing outputs match the cache, left as is] <= ✅ this is correct. It should have a cache hit
   nx run models:unit-test

2. ✅ Apply any code change in the project testing-setup in folder testing/setup and save the change to your filesystem
3. ❌ Test the project modles in packages/models and verify NO cache hit - nx unit-test models

  # [existing outputs match the cache, left as is] <= ❌ this is not correct. It should not have a cache hit
   nx run models:unit-test

Code PushUp package version

No response

What operation system are you on?

MacOS

Node version

24

Relevant log output

Related information

• https://nx.dev/reference/core-api/devkit/documents/ImplicitDependency
• https://nx.dev/deprecated/global-implicit-dependencies
• https://nx.dev/reference/inputs
• https://nx.dev/recipes/running-tasks/configure-outputs