Add as_slice/into_slice for IoSlice/IoSliceMut.

Co-authored-by: Mike Pedersen <mike@mikepedersen.dk>
Co-authored-by: Nathan West <Lucretiel@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/library/std/src/io/tests.rs b/library/std/src/io/tests.rs
index 56b71c47dc7..89e806c0891 100644
--- a/library/std/src/io/tests.rs
+++ b/library/std/src/io/tests.rs
@@ -531,6 +531,20 @@ fn io_slice_advance_slices_beyond_total_length() {
     assert!(bufs.is_empty());
 }
 
+#[test]
+fn io_slice_as_slice() {
+    let buf = [1; 8];
+    let slice = IoSlice::new(&buf).as_slice();
+    assert_eq!(slice, buf);
+}
+
+#[test]
+fn io_slice_into_slice() {
+    let mut buf = [1; 8];
+    let slice = IoSliceMut::new(&mut buf).into_slice();
+    assert_eq!(slice, [1; 8]);
+}
+
 /// Creates a new writer that reads from at most `n_bufs` and reads
 /// `per_call` bytes (in total) per call to write.
 fn test_writer(n_bufs: usize, per_call: usize) -> TestWriter {