Files
rust/tests/ui
bors 336e89bd15 Auto merge of #127665 - workingjubilee:rollup-g90yr21, r=workingjubilee
Rollup of 11 pull requests

Successful merges:

 - #126502 (Ignore allocation bytes in some mir-opt tests)
 - #126922 (add lint for inline asm labels that look like binary)
 - #127209 (Added the `xop` target-feature and the `xop_target_feature` feature gate)
 - #127310 (Fix import suggestion ice)
 - #127338 (Migrate `extra-filename-with-temp-outputs` and `issue-85019-moved-src-dir` `run-make` tests to rmake)
 - #127381 (Migrate `issue-83045`, `rustc-macro-dep-files` and `env-dep-info` `run-make` tests to rmake)
 - #127535 (Fire unsafe_code lint on unsafe extern blocks)
 - #127619 (Suggest using precise capturing for hidden type that captures region)
 - #127631 (Remove `fully_normalize`)
 - #127632 (Implement `precise_capturing` support for rustdoc)
 - #127660 (Rename the internal `const_strlen` to just `strlen`)

r? `@ghost`
`@rustbot` modify labels: rollup
2024-07-12 22:59:30 +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>.