Files
rust/tests/ui
bors 5e1440ae51 Auto merge of #133703 - matthiaskrgr:rollup-fwlw0mc, r=matthiaskrgr
Rollup of 7 pull requests

Successful merges:

 - #132974 (Properly pass linker arguments that contain commas)
 - #133403 (Make `adjust_fulfillment_errors` work with `HostEffectPredicate` and `const_conditions`)
 - #133482 (Only error raw lifetime followed by `\'` in edition 2021+)
 - #133595 (Do not emit `missing_doc_code_examples` rustdoc lint on module and a few other items)
 - #133669 (Move some functions out of const_swap feature gate)
 - #133674 (Fix chaining `carrying_add`s)
 - #133691 (Check let source before suggesting annotation)

r? `@ghost`
`@rustbot` modify labels: rollup
2024-12-01 19:49:19 +00:00
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UI Tests

This folder contains rustc's UI tests.

Test Directives (Headers)

Typically, a UI test will have some test directives / headers which are special comments that tell compiletest how to build and intepret a test.

As part of an on-going effort to rewrite compiletest (see https://github.com/rust-lang/compiler-team/issues/536), a major change proposal to change legacy compiletest-style headers // <directive> to ui_test-style headers //@ <directive> was accepted (see https://github.com/rust-lang/compiler-team/issues/512.

An example directive is ignore-test. In legacy compiletest style, the header would be written as

// ignore-test

but in ui_test style, the header would be written as

//@ ignore-test

compiletest is changed to accept only //@ directives for UI tests (currently), and will reject and report an error if it encounters any comments // <content> that may be parsed as an legacy compiletest-style test header. To fix this, you should migrate to the ui_test-style header //@ <content>.