Running individual tests in VS Code

help
1

In VS Code it is possible to run individual tests or individual module tests using buttons added right inside the text editor. It is very handy.
image

But I have to questions:

  1. Is it possible to specify custom arguments to test build? I.e. "--target" or "--release".

  2. When using additional attributes, like timeout from ntest these buttons do not show up. Can this be fixed?
    image

2

For question 1, you can do it project-wide with the setting rust-analyzer.runnables.extraArgs.

1 Like
3

For 2, does reversing make a difference...

#[timeout(500)]
#[test]
fn test_pt1_result() -> Result<()> {
4

I think it's a bug in ntest. other attributes works fine. for example, you can test it out by defining an identity proc macro attribute yourself like this:

#[proc_macro_attribute]
pub fn identity(_attrs: TokenStream, item: TokenStream) -> TokenStream {
	item
}

#[test]
#[dummy::identity]
fn test() {}
5

It makes the test not recognizable by the rust test framework. cargo test will skip this test like it does not exist.

6

It works. Not sure about the side effects as it can affect something else.

7

Huh. That seems like a bug. Bummer.