Is there a way to test a specific function or module?

[prestontw]

I know I can run a specific binary with gleam run -m <binary>, but does something similar exist for testing? I have been changing the names of all of the other tests I don't want to run so they aren't picked up by gleam test. I am on gleam 1.4.1.

[lpil]

The "gleam test" command runs the main function in your APPNAME_test module, you can do anything you want in there. Gleam doesn't have an opinions about what your test code does.

[prestontw]

Great, thank you! This really helped my mental model of the default testing setup (through gleam new). Is this something that's already documented? I don't think I saw it in the language tour, but this is maybe too in the weeds for the tour. If it's helpful, I would be happy to add some documentation, but I would need some guidance on where to put it.

[lpil]

The tour covers the language rather than the build tool. This bit is explained in the "writing Gleam" tutorial which is linked to at the end of the tour.

https://gleam.run/writing-gleam/