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use crate::ffi::CString;
use crate::hint::black_box;
use crate::path::Path;
use crate::sys::common::small_c_string::run_path_with_cstr;
use core::iter::repeat;
#[test]
fn stack_allocation_works() {
let path = Path::new("abc");
let result = run_path_with_cstr(path, |p| {
assert_eq!(p, &*CString::new(path.as_os_str().as_encoded_bytes()).unwrap());
Ok(42)
});
assert_eq!(result.unwrap(), 42);
}
#[test]
fn stack_allocation_fails() {
let path = Path::new("ab\0");
assert!(run_path_with_cstr::<(), _>(path, |_| unreachable!()).is_err());
}
#[test]
fn heap_allocation_works() {
let path = repeat("a").take(384).collect::<String>();
let path = Path::new(&path);
let result = run_path_with_cstr(path, |p| {
assert_eq!(p, &*CString::new(path.as_os_str().as_encoded_bytes()).unwrap());
Ok(42)
});
assert_eq!(result.unwrap(), 42);
}
#[test]
fn heap_allocation_fails() {
let mut path = repeat("a").take(384).collect::<String>();
path.push('\0');
let path = Path::new(&path);
assert!(run_path_with_cstr::<(), _>(path, |_| unreachable!()).is_err());
}
#[bench]
fn bench_stack_path_alloc(b: &mut test::Bencher) {
let path = repeat("a").take(383).collect::<String>();
let p = Path::new(&path);
b.iter(|| {
run_path_with_cstr(p, |cstr| {
black_box(cstr);
Ok(())
})
.unwrap();
});
}
#[bench]
fn bench_heap_path_alloc(b: &mut test::Bencher) {
let path = repeat("a").take(384).collect::<String>();
let p = Path::new(&path);
b.iter(|| {
run_path_with_cstr(p, |cstr| {
black_box(cstr);
Ok(())
})
.unwrap();
});
}
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