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