Files
rust/tests/ui
bors 86d69c705a Auto merge of #132035 - matthiaskrgr:rollup-ty1e4q0, r=matthiaskrgr
Rollup of 8 pull requests

Successful merges:

 - #125205 (Fixup Windows verbatim paths when used with the `include!` macro)
 - #131049 (Validate args are correct for `UnevaluatedConst`, `ExistentialTraitRef`/`ExistentialProjection`)
 - #131549 (Add a note for `?` on a `impl Future<Output = Result<..>>` in sync function)
 - #131731 (add `TestFloatParse` to `tools.rs` for bootstrap)
 - #131732 (Add doc(plugins), doc(passes), etc. to INVALID_DOC_ATTRIBUTES)
 - #132006 (don't stage-off to previous compiler when CI rustc is available)
 - #132022 (Move `cmp_in_dominator_order` out of graph dominator computation)
 - #132033 (compiletest: Make `line_directive` return a `DirectiveLine`)

r? `@ghost`
`@rustbot` modify labels: rollup
2024-10-22 14:16:37 +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>.