std: move "mod tests/benches" to separate files

Also doing fmt inplace as requested.

1 files changed, 9 insertions, 0 deletions

diff --git a/library/std/src/sys/unix/fd/tests.rs b/library/std/src/sys/unix/fd/tests.rs
new file mode 100644
index 00000000000..a932043cbc6
--- /dev/null
+++ b/library/std/src/sys/unix/fd/tests.rs
@@ -0,0 +1,9 @@
+use super::{FileDesc, IoSlice};
+use core::mem::ManuallyDrop;
+
+#[test]
+fn limit_vector_count() {
+    let stdout = ManuallyDrop::new(FileDesc { fd: 1 });
+    let bufs = (0..1500).map(|_| IoSlice::new(&[])).collect::<Vec<_>>();
+    assert!(stdout.write_vectored(&bufs).is_ok());
+}