mCaptcha/pow_sha256
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Added is_sufficient_difficulty fn & tests.

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Robert Kornacki 2019-07-23 12:08:19 -04:00
parent 41ab448741
commit df3af977e0
1 changed files with 8 additions and 2 deletions
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10
src/lib.rs
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@ -66,6 +66,11 @@ impl<T: Serialize> PoW<T> {
} }
return false; return false;
} }
/// Checks if the PoW result is of sufficient difficulty
pub fn is_sufficient_difficulty(&self, target_diff: u128) -> bool {
return self.result >= target_diff;
}
} }
fn score(prefix_sha: Sha256, nonce: u128) -> u128 { fn score(prefix_sha: Sha256, nonce: u128) -> u128 {
@ -104,6 +109,7 @@ mod test {
assert!(pw.calculate(&phrase).unwrap() >= DIFFICULTY); assert!(pw.calculate(&phrase).unwrap() >= DIFFICULTY);
assert!(pw.result >= DIFFICULTY); assert!(pw.result >= DIFFICULTY);
assert!(pw.is_valid_proof(&phrase)); assert!(pw.is_valid_proof(&phrase));
assert!(pw.is_sufficient_difficulty(DIFFICULTY));
} }
#[test] #[test]
@ -113,8 +119,8 @@ mod test {
let pwpw: PoW<PoW<String>> = PoW::prove_work(&pw, DIFFICULTY).unwrap(); let pwpw: PoW<PoW<String>> = PoW::prove_work(&pw, DIFFICULTY).unwrap();
assert!(pw.calculate(&phrase).unwrap() >= DIFFICULTY); assert!(pw.calculate(&phrase).unwrap() >= DIFFICULTY);
assert!(pwpw.calculate(&pw).unwrap() >= DIFFICULTY); assert!(pwpw.calculate(&pw).unwrap() >= DIFFICULTY);
assert!(pw.result >= DIFFICULTY); assert!(pw.is_sufficient_difficulty(DIFFICULTY));
assert!(pwpw.result >= DIFFICULTY); assert!(pwpw.is_sufficient_difficulty(DIFFICULTY));
assert!(pw.is_valid_proof(&phrase)); assert!(pw.is_valid_proof(&phrase));
assert!(pwpw.is_valid_proof(&pw)); assert!(pwpw.is_valid_proof(&pw));
} }