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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /third_party/rust/siphasher/src/tests128.rs
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/siphasher/src/tests128.rs')
-rw-r--r--third_party/rust/siphasher/src/tests128.rs103
1 files changed, 103 insertions, 0 deletions
diff --git a/third_party/rust/siphasher/src/tests128.rs b/third_party/rust/siphasher/src/tests128.rs
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+++ b/third_party/rust/siphasher/src/tests128.rs
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+// 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::sip128::{Hasher128, 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);
+ }
+}
+
+fn hash_with<H: Hasher + Hasher128, T: Hash>(mut st: H, x: &T) -> [u8; 16] {
+ x.hash(&mut st);
+ st.finish128().as_bytes()
+}
+
+fn hash<T: Hash>(x: &T) -> [u8; 16] {
+ hash_with(SipHasher::new(), x)
+}
+
+#[test]
+#[allow(unused_must_use)]
+fn test_siphash128_1_3() {
+ let vecs: [[u8; 16]; 1] = [[
+ 231, 126, 188, 178, 39, 136, 165, 190, 253, 98, 219, 106, 221, 48, 48, 1,
+ ]];
+
+ 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 < 1 {
+ let vec = vecs[t];
+ 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.finish128().as_bytes();
+
+ 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_siphash128_2_4() {
+ let vecs: [[u8; 16]; 1] = [[
+ 163, 129, 127, 4, 186, 37, 168, 230, 109, 246, 114, 20, 199, 85, 2, 147,
+ ]];
+
+ 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 < 1 {
+ let vec = vecs[t];
+ 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.finish128().as_bytes();
+
+ 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_siphash128_serde() {
+ let val64 = 0xdead_beef_dead_beef_u64;
+ let hash = hash(&val64);
+ let serialized = serde_json::to_string(&hash).unwrap();
+ let deserialized: [u8; 16] = serde_json::from_str(&serialized).unwrap();
+ assert_eq!(hash, deserialized);
+}