Files
rust/tests/ui
bors 6d3c050de8 Auto merge of #137295 - matthiaskrgr:rollup-tdu3t39, r=matthiaskrgr
Rollup of 9 pull requests

Successful merges:

 - #135296 (interpret: adjust vtable validity check for higher-ranked types)
 - #137106 (Add customized compare for Link in rustdoc)
 - #137253 (Restrict `bevy_ecs` `ParamSet` hack)
 - #137262 (Make fewer crates depend on `rustc_ast_ir`)
 - #137263 (Register `USAGE_OF_TYPE_IR_INHERENT`, remove inherent usages)
 - #137266 (MIR visitor tweaks)
 - #137269 (Pattern Migration 2024: properly label `&` patterns whose subpatterns are from macro expansions)
 - #137277 (stabilize `inherent_str_constructors`)
 - #137281 (Tweak "expected ident" parse error to avoid talking about doc comments)

r? `@ghost`
`@rustbot` modify labels: rollup
2025-02-20 02:39:28 +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 interpret a test.

As part of an ongoing 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 a legacy compiletest-style test header. To fix this, you should migrate to the ui_test-style header //@ <content>.