Improve compiletest expected/not found formatting by Noratrieb · Pull Request #125890 · rust-lang/rust

@rustbot rustbot added A-testsuite

Area: The testsuite used to check the correctness of rustc

S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

T-bootstrap

Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

labels

Jun 2, 2024

jieyouxu

jieyouxu

@Noratrieb

compiletest, oh compiletest, you are truly one of the tools in this
repository. You're the omnipresent gatekeeper, ensuring that every new
change works, doesn't break the world, and is nice. We thank you for
your work, for your tests, for your test runs, for your features that
help writing tests, for all the stability and and good you have caused.
Without you, Rust wouldn't exist as it does, without you, nothing would
work, without you, we would all go insane from having changes break and
having to test them all by hand. Thank you, compiletest.

but holy shit i fucking hate your stupid debug output so much i simply
cannot take this anymore aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

By changing a few magic lines in this file called "runtest.rs", we can
cause compiletest to emit nicer messages. This is widely regarded as a
good thing. We stop wasting vertical space, allowing more errors to be
displayed at once. Additionally, we add colors, which make it so much
more pretty *and* gay, both of which are very good and useful.

There's a bit of fuckery needed to get the colors to work. `colored`
checks whether stdout is a terminal. We also print to stdout, so that
works well.
But.... for some stupid reason that I absolutely refuse to even attempt
to debug, stdout is *not* a terminal when executing tests *in a
terminal*.
But stderr is >:).
So this just checks whether stderr is a terminal.
If you have a use case where you dump compiletest stdout into a place
where colors are not supported while having stderr be a terminal, then
I'm sorry for you, but you are gonna get colors and you're gonna like
it. Stop it with the usual environment variable, which `colored` also
respects by default.

@bors bors added S-waiting-on-bors

Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

and removed S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

labels

Jun 2, 2024

WaffleLapkin

@bors bors added S-waiting-on-author

Status: This is awaiting some action (such as code changes or more information) from the author.

and removed S-waiting-on-bors

Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

labels

Jun 2, 2024

@bors bors added S-waiting-on-bors

Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

and removed S-waiting-on-author

Status: This is awaiting some action (such as code changes or more information) from the author.

labels

Jun 2, 2024

jieyouxu added a commit to jieyouxu/rust that referenced this pull request

Jun 2, 2024
Improve compiletest expected/not found formatting

compiletest, oh compiletest, you are truly one of the tools in this repository. You're the omnipresent gatekeeper, ensuring that every new change works, doesn't break the world, and is nice. We thank you for your work, for your tests, for your test runs, for your features that help writing tests, for all the stability and and good you have caused. Without you, Rust wouldn't exist as it does, without you, nothing would work, without you, we would all go insane from having changes break and having to test them all by hand. Thank you, compiletest.

but holy shit i fucking hate your stupid debug output so much i simply cannot take this anymore aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

By changing a few magic lines in this file called "runtest.rs", we can cause compiletest to emit nicer messages. This is widely regarded as a good thing. We stop wasting vertical space, allowing more errors to be displayed at once. Additionally, we add colors, which make it so much more pretty *and* gay, both of which are very good and useful.

There's a bit of fuckery needed to get the colors to work. `colored` checks whether stdout is a terminal. We also print to stdout, so that works well.
But.... for some stupid reason that I absolutely refuse to even attempt to debug, stdout is *not* a terminal when executing tests *in a terminal*.
But stderr is >:).
So this just checks whether stderr is a terminal.
If you have a use case where you dump compiletest stdout into a place where colors are not supported while having stderr be a terminal, then I'm sorry for you, but you are gonna get colors and you're gonna like it. Stop it with the usual environment variable, which `colored` also respects by default.

### before (bad, hurts your brain, makes you want to cry)
![image](https://github.com/rust-lang/rust/assets/48135649/cbeecb5d-fc25-460b-b192-9808f8fa2079)

## after (good, gay, makes you want to cry)
![image](https://github.com/rust-lang/rust/assets/48135649/a655b220-8841-443e-a825-72a835d56882)

r? jieyouxu said he wants to review the PR

bors added a commit to rust-lang-ci/rust that referenced this pull request

Jun 2, 2024
Rollup of 5 pull requests

Successful merges:

 - rust-lang#121062 (Change f32::midpoint to upcast to f64)
 - rust-lang#125808 (Migrate `run-make/c-link-to-rust-dylib` to `rmake.rs`)
 - rust-lang#125886 (Migrate run make issue 15460)
 - rust-lang#125890 (Improve compiletest expected/not found formatting)
 - rust-lang#125896 (compiletest: fix outdated rmake.rs comment)

r? `@ghost`
`@rustbot` modify labels: rollup

bors added a commit to rust-lang-ci/rust that referenced this pull request

Jun 2, 2024

rust-timer added a commit to rust-lang-ci/rust that referenced this pull request

Jun 3, 2024
Rollup merge of rust-lang#125890 - Nilstrieb:gay-compiletest, r=jieyouxu

Improve compiletest expected/not found formatting

compiletest, oh compiletest, you are truly one of the tools in this repository. You're the omnipresent gatekeeper, ensuring that every new change works, doesn't break the world, and is nice. We thank you for your work, for your tests, for your test runs, for your features that help writing tests, for all the stability and and good you have caused. Without you, Rust wouldn't exist as it does, without you, nothing would work, without you, we would all go insane from having changes break and having to test them all by hand. Thank you, compiletest.

but holy shit i fucking hate your stupid debug output so much i simply cannot take this anymore aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

By changing a few magic lines in this file called "runtest.rs", we can cause compiletest to emit nicer messages. This is widely regarded as a good thing. We stop wasting vertical space, allowing more errors to be displayed at once. Additionally, we add colors, which make it so much more pretty *and* gay, both of which are very good and useful.

There's a bit of fuckery needed to get the colors to work. `colored` checks whether stdout is a terminal. We also print to stdout, so that works well.
But.... for some stupid reason that I absolutely refuse to even attempt to debug, stdout is *not* a terminal when executing tests *in a terminal*.
But stderr is >:).
So this just checks whether stderr is a terminal.
If you have a use case where you dump compiletest stdout into a place where colors are not supported while having stderr be a terminal, then I'm sorry for you, but you are gonna get colors and you're gonna like it. Stop it with the usual environment variable, which `colored` also respects by default.

### before (bad, hurts your brain, makes you want to cry)
![image](https://github.com/rust-lang/rust/assets/48135649/cbeecb5d-fc25-460b-b192-9808f8fa2079)

## after (good, gay, makes you want to cry)
![image](https://github.com/rust-lang/rust/assets/48135649/a655b220-8841-443e-a825-72a835d56882)

r? jieyouxu said he wants to review the PR