Relicense as dual Apache-2.0 + MIT

[rust-lightning] / lightning / src / util / byte_utils.rs

diff --git a/lightning/src/util/byte_utils.rs b/lightning/src/util/byte_utils.rs
index 44445666f776644947320cacac39fd0c9b57c982..8ae3649780634cd6a6b2c3243222cc9f40b1e782 100644 (file)
--- a/lightning/src/util/byte_utils.rs
+++ b/lightning/src/util/byte_utils.rs
@@ -1,3 +1,12 @@
+// This file is Copyright its original authors, visible in version control
+// history.
+//
+// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
+// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
+// You may not use this file except in accordance with one or both of these
+// licenses.
+
 #[inline]
 pub fn slice_to_be16(v: &[u8]) -> u16 {
        ((v[0] as u16) << 8*1) |
@@ -104,3 +113,23 @@ pub fn le64_to_array(u: u64) -> [u8; 8] {
        v[7] = ((u >> 8*7) & 0xff) as u8;
        v
 }
+
+#[cfg(test)]
+mod tests {
+       use super::*;
+       
+       #[test]
+       fn test_all() {
+               assert_eq!(slice_to_be16(&[0xde, 0xad]), 0xdead);
+               assert_eq!(slice_to_be32(&[0xde, 0xad, 0xbe, 0xef]), 0xdeadbeef);
+               assert_eq!(slice_to_le32(&[0xef, 0xbe, 0xad, 0xde]), 0xdeadbeef);
+               assert_eq!(slice_to_be48(&[0xde, 0xad, 0xbe, 0xef, 0x1b, 0xad]), 0xdeadbeef1bad);
+               assert_eq!(slice_to_be64(&[0xde, 0xad, 0xbe, 0xef, 0x1b, 0xad, 0x1d, 0xea]), 0xdeadbeef1bad1dea);
+               assert_eq!(be16_to_array(0xdead), [0xde, 0xad]);
+               assert_eq!(be32_to_array(0xdeadbeef), [0xde, 0xad, 0xbe, 0xef]);
+               assert_eq!(le32_to_array(0xdeadbeef), [0xef, 0xbe, 0xad, 0xde]);
+               assert_eq!(be48_to_array(0xdeadbeef1bad), [0xde, 0xad, 0xbe, 0xef, 0x1b, 0xad]);
+               assert_eq!(be64_to_array(0xdeadbeef1bad1dea), [0xde, 0xad, 0xbe, 0xef, 0x1b, 0xad, 0x1d, 0xea]);
+               assert_eq!(le64_to_array(0xdeadbeef1bad1dea), [0xea, 0x1d, 0xad, 0x1b, 0xef, 0xbe, 0xad, 0xde]);
+       }
+}