How do you test only one file with Heft

Question

I'm working on a project that recently implemented Rush. We're using Heft as a test runner, so the main test command is heft test.

The problem is, no one knows how to only test one file. I tried using it with the --locale flag as well as with the -t REGEXP flag, but to no avail.

Any idea what the secret sauce is?

e.g.

src/apps/dashboard/components/Button/Button.test.tsx

# Jest syntax for testing one file / regexp except for heft

heft test -- button

Answer 1

Not sure which version of Heft you are using, but I do not have Heft installed globally, so I use npx to use the version I have locally.

This works for me with heft 0.47.9:

npx heft test --test-path-pattern src/path/to/my-test.test.ts