4331834003
* Move tests -> testing * Directory restructure * Update Cargo.toml during restructure * Update Makefile during restructure * Fix arbitrary path
103 lines
3.3 KiB
Rust
103 lines
3.3 KiB
Rust
#![cfg(test)]
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use eth2_key_derivation::DerivedKey;
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use num_bigint_dig::BigUint;
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/// Contains the test vectors in a format that's easy for us to test against.
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struct TestVector {
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seed: Vec<u8>,
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master_sk: Vec<u8>,
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child_index: u32,
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child_sk: Vec<u8>,
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}
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/// Struct to deal with easy copy-paste from specification test vectors.
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struct RawTestVector {
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seed: &'static str,
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master_sk: &'static str,
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child_index: u32,
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child_sk: &'static str,
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}
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/// Converts from a format that's easy to copy-paste from the spec into a format that's easy to
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/// test with.
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impl From<RawTestVector> for TestVector {
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fn from(raw: RawTestVector) -> TestVector {
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TestVector {
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seed: hex_to_vec(raw.seed),
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master_sk: int_to_vec(raw.master_sk),
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child_index: raw.child_index,
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child_sk: int_to_vec(raw.child_sk),
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}
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}
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}
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/// Converts 0x-prefixed hex to bytes.
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fn hex_to_vec(hex: &str) -> Vec<u8> {
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hex::decode(&hex[2..]).expect("should decode hex as vec")
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}
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/// Converts an integer represented as a string to a big-endian byte array.
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fn int_to_vec(int_str: &str) -> Vec<u8> {
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BigUint::parse_bytes(int_str.as_bytes(), 10)
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.expect("must be able to parse int")
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.to_bytes_be()
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}
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/// Asserts that our code matches the given test vector.
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fn assert_vector_passes(raw: RawTestVector) {
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let vector: TestVector = raw.into();
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let master = DerivedKey::from_seed(&vector.seed).unwrap();
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assert_eq!(master.secret(), &vector.master_sk[..], "master");
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let child = master.child(vector.child_index);
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assert_eq!(child.secret(), &vector.child_sk[..], "child");
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}
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/*
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* The following test vectors are obtained from:
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*
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* https://eips.ethereum.org/EIPS/eip-2333
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*/
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#[test]
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fn eip2333_test_case_0() {
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assert_vector_passes(RawTestVector {
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seed: "0xc55257c360c07c72029aebc1b53c05ed0362ada38ead3e3e9efa3708e53495531f09a6987599d18264c1e1c92f2cf141630c7a3c4ab7c81b2f001698e7463b04",
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master_sk: "12513733877922233913083619867448865075222526338446857121953625441395088009793",
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child_index: 0,
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child_sk: "7419543105316279183937430842449358701327973165530407166294956473095303972104"
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})
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}
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#[test]
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fn eip2333_test_case_1() {
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assert_vector_passes(RawTestVector {
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seed: "0x3141592653589793238462643383279502884197169399375105820974944592",
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master_sk: "46029459550803682895343812821003080589696405386150182061394330539196052371668",
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child_index: 3141592653,
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child_sk: "43469287647733616183478983885105537266268532274998688773496918571876759327260",
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})
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}
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#[test]
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fn eip2333_test_case_2() {
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assert_vector_passes(RawTestVector {
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seed: "0x0099FF991111002299DD7744EE3355BBDD8844115566CC55663355668888CC00",
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master_sk: "45379166311535261329029945990467475187325618028073620882733843918126031931161",
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child_index: 4294967295,
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child_sk: "46475244006136701976831062271444482037125148379128114617927607151318277762946",
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})
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}
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#[test]
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fn eip2333_test_case_3() {
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assert_vector_passes(RawTestVector {
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seed: "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3",
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master_sk: "31740500954810567003972734830331791822878290325762596213711963944729383643688",
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child_index: 42,
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child_sk: "51041472511529980987749393477251359993058329222191894694692317000136653813011",
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})
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}
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