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add tests

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This commit is contained in:
Marty Jones 2020-04-21 20:27:35 -04:00
parent 5a2ed03247
commit 09a39725f8
1 changed files with 21 additions and 0 deletions
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21
lightning/src/util/byte_utils.rs
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@ -104,3 +104,24 @@ 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]);
}
}