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big to little endian, some more tests

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This commit is contained in:
Darren Langley
2019-02-15 20:46:06 +10:00
parent 0800091a43
commit c59bab58d2
5 changed files with 141 additions and 59 deletions
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18
eth2/utils/ssz/src/impl_decode.rs
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@@ -12,7 +12,7 @@ macro_rules! impl_decodable_for_uint {
let end_bytes = index + max_bytes;
let mut result: $type = 0;
for (i, byte) in bytes.iter().enumerate().take(end_bytes).skip(index) {
let offset = (end_bytes - i - 1) * 8;
let offset = (end_bytes - (end_bytes - (i - index))) * 8;
result |= ($type::from(*byte)) << offset;
}
Ok((result, end_bytes))
@@ -108,12 +108,12 @@ mod tests {
assert_eq!(result, 0);
assert_eq!(index, 2);
let ssz = vec![0, 16];
let ssz = vec![16, 0];
let (result, index): (u16, usize) = decode_ssz(&ssz, 0).unwrap();
assert_eq!(result, 16);
assert_eq!(index, 2);
let ssz = vec![1, 0];
let ssz = vec![0, 1];
let (result, index): (u16, usize) = decode_ssz(&ssz, 0).unwrap();
assert_eq!(result, 256);
assert_eq!(index, 2);
@@ -135,17 +135,17 @@ mod tests {
assert_eq!(result, 0);
assert_eq!(index, 4);
let ssz = vec![0, 0, 1, 0];
let ssz = vec![0, 1, 0, 0];
let (result, index): (u32, usize) = decode_ssz(&ssz, 0).unwrap();
assert_eq!(index, 4);
assert_eq!(result, 256);
let ssz = vec![255, 255, 255, 0, 0, 1, 0];
let ssz = vec![255, 255, 255, 0, 1, 0, 0];
let (result, index): (u32, usize) = decode_ssz(&ssz, 3).unwrap();
assert_eq!(index, 7);
assert_eq!(result, 256);
let ssz = vec![0, 200, 1, 0];
let ssz = vec![0, 1, 200, 0];
let (result, index): (u32, usize) = decode_ssz(&ssz, 0).unwrap();
assert_eq!(index, 4);
assert_eq!(result, 13107456);
@@ -155,7 +155,7 @@ mod tests {
assert_eq!(index, 4);
assert_eq!(result, 4294967295);
let ssz = vec![0, 0, 1];
let ssz = vec![1, 0, 0];
let result: Result<(u32, usize), DecodeError> = decode_ssz(&ssz, 0);
assert_eq!(result, Err(DecodeError::TooShort));
}
@@ -172,7 +172,7 @@ mod tests {
assert_eq!(index, 8);
assert_eq!(result, 18446744073709551615);
let ssz = vec![0, 0, 8, 255, 0, 0, 0, 0, 0, 0, 0];
let ssz = vec![0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 255];
let (result, index): (u64, usize) = decode_ssz(&ssz, 3).unwrap();
assert_eq!(index, 11);
assert_eq!(result, 18374686479671623680);
@@ -212,7 +212,7 @@ mod tests {
let err: Result<(u16, usize), DecodeError> = decode_ssz(&vec![0, 0, 0, 0], 3);
assert_eq!(err, Err(DecodeError::TooShort));
let result: u16 = decode_ssz(&vec![0, 0, 0, 0, 1], 3).unwrap().0;
let result: u16 = decode_ssz(&vec![0, 0, 0, 1, 0], 3).unwrap().0;
assert_eq!(result, 1);
}
}