Can you force bun tests to run sequentially? (integration tests)

[mbbirkel]

Is it possible to force bun to run tests sequentially?

My tests are dependent on database state, and some fail when running bun test. I suspect this is caused by race conditions from running tests concurrently. When i run the failing tests in isolation, however, they pass.

Running the tests with Jest works fine, although execution is a lot slower.

[dweldon]

As of this writing, I'm using bun 1.1.34, and it seems like the tests all run sequentially by default. I have a suite of integration tests in several files and they don't appear to be causing a conflict. Note that I'm resetting the state of the DB after each tests completes so there are no inter-dependencies.

If this assumption about sequential execution is incorrect, someone please let me know.

[krisbitney]

While the docs do say that tests should run sequentially, they are not running sequentially. I am observing race conditions due to my tests being dependent on database state as well.

[francescov1]

@krisbitney we've been finding the same, especially notice it in more resource constrained environments