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Diffstat (limited to 'third_party/rust/siphasher/src/tests.rs')
| -rw-r--r-- | third_party/rust/siphasher/src/tests.rs | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/third_party/rust/siphasher/src/tests.rs b/third_party/rust/siphasher/src/tests.rs new file mode 100644 index 0000000000..05d4b6a18a --- /dev/null +++ b/third_party/rust/siphasher/src/tests.rs @@ -0,0 +1,309 @@ +// Copyright 2014 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +use super::sip::{SipHasher, SipHasher13, SipHasher24}; +use std::hash::{Hash, Hasher}; + +// Hash just the bytes of the slice, without length prefix +struct Bytes<'a>(&'a [u8]); + +impl<'a> Hash for Bytes<'a> { + #[allow(unused_must_use)] + fn hash<H: Hasher>(&self, state: &mut H) { + let Bytes(v) = *self; + state.write(v); + } +} + +macro_rules! u8to64_le { + ($buf:expr, $i:expr) => { + $buf[0 + $i] as u64 + | ($buf[1 + $i] as u64) << 8 + | ($buf[2 + $i] as u64) << 16 + | ($buf[3 + $i] as u64) << 24 + | ($buf[4 + $i] as u64) << 32 + | ($buf[5 + $i] as u64) << 40 + | ($buf[6 + $i] as u64) << 48 + | ($buf[7 + $i] as u64) << 56 + }; + ($buf:expr, $i:expr, $len:expr) => {{ + let mut t = 0; + let mut out = 0; + while t < $len { + out |= ($buf[t + $i] as u64) << t * 8; + t += 1; + } + out + }}; +} + +fn hash_with<H: Hasher, T: Hash>(mut st: H, x: &T) -> u64 { + x.hash(&mut st); + st.finish() +} + +fn hash<T: Hash>(x: &T) -> u64 { + hash_with(SipHasher::new(), x) +} + +#[test] +#[allow(unused_must_use)] +fn test_siphash_1_3() { + let vecs: [[u8; 8]; 64] = [ + [0xdc, 0xc4, 0x0f, 0x05, 0x58, 0x01, 0xac, 0xab], + [0x93, 0xca, 0x57, 0x7d, 0xf3, 0x9b, 0xf4, 0xc9], + [0x4d, 0xd4, 0xc7, 0x4d, 0x02, 0x9b, 0xcb, 0x82], + [0xfb, 0xf7, 0xdd, 0xe7, 0xb8, 0x0a, 0xf8, 0x8b], + [0x28, 0x83, 0xd3, 0x88, 0x60, 0x57, 0x75, 0xcf], + [0x67, 0x3b, 0x53, 0x49, 0x2f, 0xd5, 0xf9, 0xde], + [0xa7, 0x22, 0x9f, 0xc5, 0x50, 0x2b, 0x0d, 0xc5], + [0x40, 0x11, 0xb1, 0x9b, 0x98, 0x7d, 0x92, 0xd3], + [0x8e, 0x9a, 0x29, 0x8d, 0x11, 0x95, 0x90, 0x36], + [0xe4, 0x3d, 0x06, 0x6c, 0xb3, 0x8e, 0xa4, 0x25], + [0x7f, 0x09, 0xff, 0x92, 0xee, 0x85, 0xde, 0x79], + [0x52, 0xc3, 0x4d, 0xf9, 0xc1, 0x18, 0xc1, 0x70], + [0xa2, 0xd9, 0xb4, 0x57, 0xb1, 0x84, 0xa3, 0x78], + [0xa7, 0xff, 0x29, 0x12, 0x0c, 0x76, 0x6f, 0x30], + [0x34, 0x5d, 0xf9, 0xc0, 0x11, 0xa1, 0x5a, 0x60], + [0x56, 0x99, 0x51, 0x2a, 0x6d, 0xd8, 0x20, 0xd3], + [0x66, 0x8b, 0x90, 0x7d, 0x1a, 0xdd, 0x4f, 0xcc], + [0x0c, 0xd8, 0xdb, 0x63, 0x90, 0x68, 0xf2, 0x9c], + [0x3e, 0xe6, 0x73, 0xb4, 0x9c, 0x38, 0xfc, 0x8f], + [0x1c, 0x7d, 0x29, 0x8d, 0xe5, 0x9d, 0x1f, 0xf2], + [0x40, 0xe0, 0xcc, 0xa6, 0x46, 0x2f, 0xdc, 0xc0], + [0x44, 0xf8, 0x45, 0x2b, 0xfe, 0xab, 0x92, 0xb9], + [0x2e, 0x87, 0x20, 0xa3, 0x9b, 0x7b, 0xfe, 0x7f], + [0x23, 0xc1, 0xe6, 0xda, 0x7f, 0x0e, 0x5a, 0x52], + [0x8c, 0x9c, 0x34, 0x67, 0xb2, 0xae, 0x64, 0xf4], + [0x79, 0x09, 0x5b, 0x70, 0x28, 0x59, 0xcd, 0x45], + [0xa5, 0x13, 0x99, 0xca, 0xe3, 0x35, 0x3e, 0x3a], + [0x35, 0x3b, 0xde, 0x4a, 0x4e, 0xc7, 0x1d, 0xa9], + [0x0d, 0xd0, 0x6c, 0xef, 0x02, 0xed, 0x0b, 0xfb], + [0xf4, 0xe1, 0xb1, 0x4a, 0xb4, 0x3c, 0xd9, 0x88], + [0x63, 0xe6, 0xc5, 0x43, 0xd6, 0x11, 0x0f, 0x54], + [0xbc, 0xd1, 0x21, 0x8c, 0x1f, 0xdd, 0x70, 0x23], + [0x0d, 0xb6, 0xa7, 0x16, 0x6c, 0x7b, 0x15, 0x81], + [0xbf, 0xf9, 0x8f, 0x7a, 0xe5, 0xb9, 0x54, 0x4d], + [0x3e, 0x75, 0x2a, 0x1f, 0x78, 0x12, 0x9f, 0x75], + [0x91, 0x6b, 0x18, 0xbf, 0xbe, 0xa3, 0xa1, 0xce], + [0x06, 0x62, 0xa2, 0xad, 0xd3, 0x08, 0xf5, 0x2c], + [0x57, 0x30, 0xc3, 0xa3, 0x2d, 0x1c, 0x10, 0xb6], + [0xa1, 0x36, 0x3a, 0xae, 0x96, 0x74, 0xf4, 0xb3], + [0x92, 0x83, 0x10, 0x7b, 0x54, 0x57, 0x6b, 0x62], + [0x31, 0x15, 0xe4, 0x99, 0x32, 0x36, 0xd2, 0xc1], + [0x44, 0xd9, 0x1a, 0x3f, 0x92, 0xc1, 0x7c, 0x66], + [0x25, 0x88, 0x13, 0xc8, 0xfe, 0x4f, 0x70, 0x65], + [0xa6, 0x49, 0x89, 0xc2, 0xd1, 0x80, 0xf2, 0x24], + [0x6b, 0x87, 0xf8, 0xfa, 0xed, 0x1c, 0xca, 0xc2], + [0x96, 0x21, 0x04, 0x9f, 0xfc, 0x4b, 0x16, 0xc2], + [0x23, 0xd6, 0xb1, 0x68, 0x93, 0x9c, 0x6e, 0xa1], + [0xfd, 0x14, 0x51, 0x8b, 0x9c, 0x16, 0xfb, 0x49], + [0x46, 0x4c, 0x07, 0xdf, 0xf8, 0x43, 0x31, 0x9f], + [0xb3, 0x86, 0xcc, 0x12, 0x24, 0xaf, 0xfd, 0xc6], + [0x8f, 0x09, 0x52, 0x0a, 0xd1, 0x49, 0xaf, 0x7e], + [0x9a, 0x2f, 0x29, 0x9d, 0x55, 0x13, 0xf3, 0x1c], + [0x12, 0x1f, 0xf4, 0xa2, 0xdd, 0x30, 0x4a, 0xc4], + [0xd0, 0x1e, 0xa7, 0x43, 0x89, 0xe9, 0xfa, 0x36], + [0xe6, 0xbc, 0xf0, 0x73, 0x4c, 0xb3, 0x8f, 0x31], + [0x80, 0xe9, 0xa7, 0x70, 0x36, 0xbf, 0x7a, 0xa2], + [0x75, 0x6d, 0x3c, 0x24, 0xdb, 0xc0, 0xbc, 0xb4], + [0x13, 0x15, 0xb7, 0xfd, 0x52, 0xd8, 0xf8, 0x23], + [0x08, 0x8a, 0x7d, 0xa6, 0x4d, 0x5f, 0x03, 0x8f], + [0x48, 0xf1, 0xe8, 0xb7, 0xe5, 0xd0, 0x9c, 0xd8], + [0xee, 0x44, 0xa6, 0xf7, 0xbc, 0xe6, 0xf4, 0xf6], + [0xf2, 0x37, 0x18, 0x0f, 0xd8, 0x9a, 0xc5, 0xae], + [0xe0, 0x94, 0x66, 0x4b, 0x15, 0xf6, 0xb2, 0xc3], + [0xa8, 0xb3, 0xbb, 0xb7, 0x62, 0x90, 0x19, 0x9d], + ]; + + let k0 = 0x_07_06_05_04_03_02_01_00; + let k1 = 0x_0f_0e_0d_0c_0b_0a_09_08; + let mut buf = Vec::new(); + let mut t = 0; + let mut state_inc = SipHasher13::new_with_keys(k0, k1); + + while t < 64 { + let vec = u8to64_le!(vecs[t], 0); + let out = hash_with(SipHasher13::new_with_keys(k0, k1), &Bytes(&buf)); + assert_eq!(vec, out); + + let full = hash_with(SipHasher13::new_with_keys(k0, k1), &Bytes(&buf)); + let i = state_inc.finish(); + + assert_eq!(full, i); + assert_eq!(full, vec); + + buf.push(t as u8); + Hasher::write(&mut state_inc, &[t as u8]); + + t += 1; + } +} + +#[test] +#[allow(unused_must_use)] +fn test_siphash_2_4() { + let vecs: [[u8; 8]; 64] = [ + [0x31, 0x0e, 0x0e, 0xdd, 0x47, 0xdb, 0x6f, 0x72], + [0xfd, 0x67, 0xdc, 0x93, 0xc5, 0x39, 0xf8, 0x74], + [0x5a, 0x4f, 0xa9, 0xd9, 0x09, 0x80, 0x6c, 0x0d], + [0x2d, 0x7e, 0xfb, 0xd7, 0x96, 0x66, 0x67, 0x85], + [0xb7, 0x87, 0x71, 0x27, 0xe0, 0x94, 0x27, 0xcf], + [0x8d, 0xa6, 0x99, 0xcd, 0x64, 0x55, 0x76, 0x18], + [0xce, 0xe3, 0xfe, 0x58, 0x6e, 0x46, 0xc9, 0xcb], + [0x37, 0xd1, 0x01, 0x8b, 0xf5, 0x00, 0x02, 0xab], + [0x62, 0x24, 0x93, 0x9a, 0x79, 0xf5, 0xf5, 0x93], + [0xb0, 0xe4, 0xa9, 0x0b, 0xdf, 0x82, 0x00, 0x9e], + [0xf3, 0xb9, 0xdd, 0x94, 0xc5, 0xbb, 0x5d, 0x7a], + [0xa7, 0xad, 0x6b, 0x22, 0x46, 0x2f, 0xb3, 0xf4], + [0xfb, 0xe5, 0x0e, 0x86, 0xbc, 0x8f, 0x1e, 0x75], + [0x90, 0x3d, 0x84, 0xc0, 0x27, 0x56, 0xea, 0x14], + [0xee, 0xf2, 0x7a, 0x8e, 0x90, 0xca, 0x23, 0xf7], + [0xe5, 0x45, 0xbe, 0x49, 0x61, 0xca, 0x29, 0xa1], + [0xdb, 0x9b, 0xc2, 0x57, 0x7f, 0xcc, 0x2a, 0x3f], + [0x94, 0x47, 0xbe, 0x2c, 0xf5, 0xe9, 0x9a, 0x69], + [0x9c, 0xd3, 0x8d, 0x96, 0xf0, 0xb3, 0xc1, 0x4b], + [0xbd, 0x61, 0x79, 0xa7, 0x1d, 0xc9, 0x6d, 0xbb], + [0x98, 0xee, 0xa2, 0x1a, 0xf2, 0x5c, 0xd6, 0xbe], + [0xc7, 0x67, 0x3b, 0x2e, 0xb0, 0xcb, 0xf2, 0xd0], + [0x88, 0x3e, 0xa3, 0xe3, 0x95, 0x67, 0x53, 0x93], + [0xc8, 0xce, 0x5c, 0xcd, 0x8c, 0x03, 0x0c, 0xa8], + [0x94, 0xaf, 0x49, 0xf6, 0xc6, 0x50, 0xad, 0xb8], + [0xea, 0xb8, 0x85, 0x8a, 0xde, 0x92, 0xe1, 0xbc], + [0xf3, 0x15, 0xbb, 0x5b, 0xb8, 0x35, 0xd8, 0x17], + [0xad, 0xcf, 0x6b, 0x07, 0x63, 0x61, 0x2e, 0x2f], + [0xa5, 0xc9, 0x1d, 0xa7, 0xac, 0xaa, 0x4d, 0xde], + [0x71, 0x65, 0x95, 0x87, 0x66, 0x50, 0xa2, 0xa6], + [0x28, 0xef, 0x49, 0x5c, 0x53, 0xa3, 0x87, 0xad], + [0x42, 0xc3, 0x41, 0xd8, 0xfa, 0x92, 0xd8, 0x32], + [0xce, 0x7c, 0xf2, 0x72, 0x2f, 0x51, 0x27, 0x71], + [0xe3, 0x78, 0x59, 0xf9, 0x46, 0x23, 0xf3, 0xa7], + [0x38, 0x12, 0x05, 0xbb, 0x1a, 0xb0, 0xe0, 0x12], + [0xae, 0x97, 0xa1, 0x0f, 0xd4, 0x34, 0xe0, 0x15], + [0xb4, 0xa3, 0x15, 0x08, 0xbe, 0xff, 0x4d, 0x31], + [0x81, 0x39, 0x62, 0x29, 0xf0, 0x90, 0x79, 0x02], + [0x4d, 0x0c, 0xf4, 0x9e, 0xe5, 0xd4, 0xdc, 0xca], + [0x5c, 0x73, 0x33, 0x6a, 0x76, 0xd8, 0xbf, 0x9a], + [0xd0, 0xa7, 0x04, 0x53, 0x6b, 0xa9, 0x3e, 0x0e], + [0x92, 0x59, 0x58, 0xfc, 0xd6, 0x42, 0x0c, 0xad], + [0xa9, 0x15, 0xc2, 0x9b, 0xc8, 0x06, 0x73, 0x18], + [0x95, 0x2b, 0x79, 0xf3, 0xbc, 0x0a, 0xa6, 0xd4], + [0xf2, 0x1d, 0xf2, 0xe4, 0x1d, 0x45, 0x35, 0xf9], + [0x87, 0x57, 0x75, 0x19, 0x04, 0x8f, 0x53, 0xa9], + [0x10, 0xa5, 0x6c, 0xf5, 0xdf, 0xcd, 0x9a, 0xdb], + [0xeb, 0x75, 0x09, 0x5c, 0xcd, 0x98, 0x6c, 0xd0], + [0x51, 0xa9, 0xcb, 0x9e, 0xcb, 0xa3, 0x12, 0xe6], + [0x96, 0xaf, 0xad, 0xfc, 0x2c, 0xe6, 0x66, 0xc7], + [0x72, 0xfe, 0x52, 0x97, 0x5a, 0x43, 0x64, 0xee], + [0x5a, 0x16, 0x45, 0xb2, 0x76, 0xd5, 0x92, 0xa1], + [0xb2, 0x74, 0xcb, 0x8e, 0xbf, 0x87, 0x87, 0x0a], + [0x6f, 0x9b, 0xb4, 0x20, 0x3d, 0xe7, 0xb3, 0x81], + [0xea, 0xec, 0xb2, 0xa3, 0x0b, 0x22, 0xa8, 0x7f], + [0x99, 0x24, 0xa4, 0x3c, 0xc1, 0x31, 0x57, 0x24], + [0xbd, 0x83, 0x8d, 0x3a, 0xaf, 0xbf, 0x8d, 0xb7], + [0x0b, 0x1a, 0x2a, 0x32, 0x65, 0xd5, 0x1a, 0xea], + [0x13, 0x50, 0x79, 0xa3, 0x23, 0x1c, 0xe6, 0x60], + [0x93, 0x2b, 0x28, 0x46, 0xe4, 0xd7, 0x06, 0x66], + [0xe1, 0x91, 0x5f, 0x5c, 0xb1, 0xec, 0xa4, 0x6c], + [0xf3, 0x25, 0x96, 0x5c, 0xa1, 0x6d, 0x62, 0x9f], + [0x57, 0x5f, 0xf2, 0x8e, 0x60, 0x38, 0x1b, 0xe5], + [0x72, 0x45, 0x06, 0xeb, 0x4c, 0x32, 0x8a, 0x95], + ]; + + let k0 = 0x_07_06_05_04_03_02_01_00; + let k1 = 0x_0f_0e_0d_0c_0b_0a_09_08; + let mut buf = Vec::new(); + let mut t = 0; + let mut state_inc = SipHasher24::new_with_keys(k0, k1); + + while t < 64 { + let vec = u8to64_le!(vecs[t], 0); + let out = hash_with(SipHasher24::new_with_keys(k0, k1), &Bytes(&buf)); + assert_eq!(vec, out); + + let full = hash_with(SipHasher24::new_with_keys(k0, k1), &Bytes(&buf)); + let i = state_inc.finish(); + + assert_eq!(full, i); + assert_eq!(full, vec); + + buf.push(t as u8); + Hasher::write(&mut state_inc, &[t as u8]); + + t += 1; + } +} +#[test] +fn test_hash_idempotent() { + let val64 = 0xdead_beef_dead_beef_u64; + assert_eq!(hash(&val64), hash(&val64)); + let val32 = 0xdeadbeef_u32; + assert_eq!(hash(&val32), hash(&val32)); +} + +#[test] +fn test_hash_no_bytes_dropped_64() { + let val = 0xdead_beef_dead_beef_u64; + + assert_ne!(hash(&val), hash(&zero_byte(val, 0))); + assert_ne!(hash(&val), hash(&zero_byte(val, 1))); + assert_ne!(hash(&val), hash(&zero_byte(val, 2))); + assert_ne!(hash(&val), hash(&zero_byte(val, 3))); + assert_ne!(hash(&val), hash(&zero_byte(val, 4))); + assert_ne!(hash(&val), hash(&zero_byte(val, 5))); + assert_ne!(hash(&val), hash(&zero_byte(val, 6))); + assert_ne!(hash(&val), hash(&zero_byte(val, 7))); + + fn zero_byte(val: u64, byte: usize) -> u64 { + assert!(byte < 8); + val & !(0xff << (byte * 8)) + } +} + +#[test] +fn test_hash_no_bytes_dropped_32() { + let val = 0xdeadbeef_u32; + + assert_ne!(hash(&val), hash(&zero_byte(val, 0))); + assert_ne!(hash(&val), hash(&zero_byte(val, 1))); + assert_ne!(hash(&val), hash(&zero_byte(val, 2))); + assert_ne!(hash(&val), hash(&zero_byte(val, 3))); + + fn zero_byte(val: u32, byte: usize) -> u32 { + assert!(byte < 4); + val & !(0xff << (byte * 8)) + } +} + +#[test] +fn test_hash_no_concat_alias() { + let s = ("aa", "bb"); + let t = ("aabb", ""); + let u = ("a", "abb"); + + assert!(s != t && t != u); + assert!(hash(&s) != hash(&t) && hash(&s) != hash(&u)); + + let u = [1, 0, 0, 0]; + let v = (&u[..1], &u[1..3], &u[3..]); + let w = (&u[..], &u[4..4], &u[4..4]); + + assert_ne!(v, w); + assert_ne!(hash(&v), hash(&w)); +} + +#[test] +fn test_hash_serde() { + let val64 = 0xdead_beef_dead_beef_u64; + let hash = hash(&val64); + let serialized = serde_json::to_string(&hash).unwrap(); + let deserialized: u64 = serde_json::from_str(&serialized).unwrap(); + assert_eq!(hash, deserialized); +} |