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bridge/src/signature.rs: 100% test coverage with quickcheck

This commit is contained in:
Maximilian Krüger 2018-02-12 19:14:57 +01:00
parent 4c63d4469e
commit dfb7fef654
4 changed files with 66 additions and 0 deletions
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22
Cargo.lock generated
View File

@ -84,6 +84,7 @@ dependencies = [
"futures 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
"pretty_assertions 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
"quickcheck 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
@ -169,6 +170,15 @@ dependencies = [
"regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "env_logger"
version = "0.4.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "error-chain"
version = "0.11.0"
@ -552,6 +562,16 @@ dependencies = [
"difference 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "quickcheck"
version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
"rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "quote"
version = "0.3.15"
@ -1031,6 +1051,7 @@ dependencies = [
"checksum docopt 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d8acd393692c503b168471874953a2531df0e9ab77d0b6bbc582395743300a4a"
"checksum dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "09c3753c3db574d215cba4ea76018483895d7bff25a31b49ba45db21c48e50ab"
"checksum env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "15abd780e45b3ea4f76b4e9a26ff4843258dd8a3eed2775a0e7368c2e7936c2f"
"checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
"checksum error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ff511d5dc435d703f4971bc399647c9bc38e20cb41452e3b9feb4765419ed3f3"
"checksum ethabi 5.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7d8385a48c8ed984778dcca27efc0de162a191a14ed733a41a07d9b0cfaa999e"
"checksum ethabi-contract 5.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca2263c24359e827348ac99aa1f2e28ba5bab0d6c0b83941fa252de8a9e9c073"
@ -1073,6 +1094,7 @@ dependencies = [
"checksum parking_lot_core 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "8c47785371ae3ca397fe9eb2350e5a3ac5cfd7d329f3d9ea8375e39f1a55f377"
"checksum percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831"
"checksum pretty_assertions 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1d510007841e87c7a6d829a36f7f0acb72aef12e38cc89073fe39810c1d976ac"
"checksum quickcheck 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "15cda2c09a11b72e8563c57760dd5cf8b1fb3bb595df5759b5653048ab04e030"
"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
"checksum rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)" = "15a732abf9d20f0ad8eeb6f909bf6868722d9a06e1e50802b6a70351f40b4eb1"
"checksum rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eba5f8cb59cc50ed56be8880a5c7b496bfd9bd26394e176bc67884094145c2c5"

1
bridge/Cargo.toml
View File

@ -23,3 +23,4 @@ pretty_assertions = "0.2.1"
[dev-dependencies]
tempdir = "0.3"
quickcheck = "0.6.1"

3
bridge/src/lib.rs
View File

@ -21,6 +21,9 @@ extern crate log;
extern crate ethereum_types;
#[macro_use]
extern crate pretty_assertions;
#[cfg(test)]
#[macro_use]
extern crate quickcheck;
#[macro_use]
mod macros;

40
bridge/src/signature.rs
View File

@ -7,6 +7,8 @@ use ethabi;
pub const SIGNATURE_LENGTH: usize = 65;
/// an ECDSA signature consisting of `v`, `r` and `s`
#[derive(PartialEq, Debug)]
pub struct Signature {
pub v: u8,
pub r: H256,
@ -48,3 +50,41 @@ impl Signature {
ethabi::encode(&[ethabi::Token::Bytes(self.to_bytes())])
}
}
#[cfg(test)]
mod test {
use quickcheck::TestResult;
use super::*;
quickcheck! {
fn quickcheck_signature_roundtrips(v: u8, r_raw: Vec<u8>, s_raw: Vec<u8>) -> TestResult {
if r_raw.len() != 32 || s_raw.len() != 32 {
return TestResult::discard();
}
let r: H256 = r_raw.as_slice().into();
let s: H256 = s_raw.as_slice().into();
let signature = Signature { v, r, s };
assert_eq!(v, signature.v);
assert_eq!(r, signature.r);
assert_eq!(s, signature.s);
let bytes = signature.to_bytes();
assert_eq!(v, Signature::v_from_bytes(bytes.as_slice()));
assert_eq!(r, Signature::r_from_bytes(bytes.as_slice()));
assert_eq!(s, Signature::s_from_bytes(bytes.as_slice()));
let signature2 = Signature::from_bytes(bytes.as_slice());
assert_eq!(signature, signature2);
let payload = signature.to_payload();
let mut tokens = ethabi::decode(&[ethabi::ParamType::Bytes], payload.as_slice())
.unwrap();
let decoded = tokens.pop().unwrap().to_bytes().unwrap();
assert_eq!(signature, Signature::from_bytes(decoded.as_slice()));
TestResult::passed()
}
}
}