Merge pull request #602 from murtyjones/test-byte-utils

Add tests to byte_utils.rs

Author: TheBlueMatt

lightning/src/util/byte_utils.rs

@@ -104,3 +104,23 @@ 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]);
+	}
+}