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test: special case for nibbles implementations of Compact (#17006)

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This commit is contained in:
Alexey Shekhirin
2025-06-23 14:21:27 +01:00
committed by GitHub
parent 9d61cf8130
commit 93a407b560
1 changed files with 17 additions and 0 deletions
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17
crates/cli/commands/src/test_vectors/compact.rs
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@@ -222,6 +222,23 @@ where
};
let res = obj.to_compact(&mut compact_buffer);
// `Compact` for `StoredNibbles` and `StoredNibblesSubKey` is implemented as converting to
// an array of nybbles, with each byte representing one nibble. This also matches the
// internal representation of `nybbles::Nibbles`: each nibble is stored in a separate byte,
// with high nibble set to zero.
//
// Unfortunately, the `Arbitrary` implementation for `nybbles::Nibbles` doesn't generate
// valid nibbles, as it sets the high nibble to a non-zero value.
//
// This hack sets the high nibble to zero.
//
// TODO: remove this, see https://github.com/paradigmxyz/reth/pull/17006
if type_name == "StoredNibbles" || type_name == "StoredNibblesSubKey" {
for byte in &mut compact_buffer {
*byte &= 0x0F;
}
}
if IDENTIFIER_TYPE.contains(&type_name) {
compact_buffer.push(res as u8);
}