64 lines
1.8 KiB
Rust
64 lines
1.8 KiB
Rust
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use std::{
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fs,
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ffi::OsStr,
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io,
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path::Path,
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};
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use walkdir::WalkDir;
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#[test]
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fn fail() {
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prepare_stderr_files("tests/compile-fail").unwrap();
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let t = trybuild::TestCases::new();
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t.compile_fail("tests/compile-fail/**/*.rs");
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}
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#[test]
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fn pass() {
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let t = trybuild::TestCases::new();
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t.pass("tests/compile-pass/**/*.rs");
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}
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// Compiler messages may change between versions
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// We don't want to have to track these too closely for `bitflags`, but
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// having some message to check makes sure user-facing errors are sensical.
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//
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// The approach we use is to run the test on all compilers, but only check stderr
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// output on beta (which is the next stable release). We do this by default ignoring
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// any `.stderr` files in the `compile-fail` directory, and copying `.stderr.beta` files
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// when we happen to be running on a beta compiler.
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fn prepare_stderr_files(path: impl AsRef<Path>) -> io::Result<()> {
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for entry in WalkDir::new(path) {
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let entry = entry?;
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if entry.path().extension().and_then(OsStr::to_str) == Some("beta") {
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let renamed = entry.path().with_extension("");
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// Unconditionally remove a corresponding `.stderr` file for a `.stderr.beta`
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// file if it exists. On `beta` compilers, we'll recreate it. On other compilers,
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// we don't want to end up checking it anyways.
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if renamed.exists() {
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fs::remove_file(&renamed)?;
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}
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rename_beta_stderr(entry.path(), renamed)?;
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}
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}
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Ok(())
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}
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#[rustversion::beta]
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fn rename_beta_stderr(from: impl AsRef<Path>, to: impl AsRef<Path>) -> io::Result<()> {
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fs::copy(from, to)?;
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Ok(())
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}
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#[rustversion::not(beta)]
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fn rename_beta_stderr(_: impl AsRef<Path>, _: impl AsRef<Path>) -> io::Result<()> {
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Ok(())
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}
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