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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /third_party/rust/rand_pcg/tests | |
parent | Initial commit. (diff) | |
download | firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/rand_pcg/tests')
-rw-r--r-- | third_party/rust/rand_pcg/tests/lcg128xsl64.rs | 55 | ||||
-rw-r--r-- | third_party/rust/rand_pcg/tests/lcg64xsh32.rs | 54 | ||||
-rw-r--r-- | third_party/rust/rand_pcg/tests/mcg128xsl64.rs | 54 |
3 files changed, 163 insertions, 0 deletions
diff --git a/third_party/rust/rand_pcg/tests/lcg128xsl64.rs b/third_party/rust/rand_pcg/tests/lcg128xsl64.rs new file mode 100644 index 0000000000..efc72fffd5 --- /dev/null +++ b/third_party/rust/rand_pcg/tests/lcg128xsl64.rs @@ -0,0 +1,55 @@ +use rand_core::{RngCore, SeedableRng}; +use rand_pcg::{Lcg128Xsl64, Pcg64}; + +#[test] +fn test_lcg128xsl64_construction() { + // Test that various construction techniques produce a working RNG. + let seed = [1,2,3,4, 5,6,7,8, 9,10,11,12, 13,14,15,16, + 17,18,19,20, 21,22,23,24, 25,26,27,28, 29,30,31,32]; + let mut rng1 = Lcg128Xsl64::from_seed(seed); + assert_eq!(rng1.next_u64(), 8740028313290271629); + + let mut rng2 = Lcg128Xsl64::from_rng(&mut rng1).unwrap(); + assert_eq!(rng2.next_u64(), 1922280315005786345); + + let mut rng3 = Lcg128Xsl64::seed_from_u64(0); + assert_eq!(rng3.next_u64(), 2354861276966075475); + + // This is the same as Lcg128Xsl64, so we only have a single test: + let mut rng4 = Pcg64::seed_from_u64(0); + assert_eq!(rng4.next_u64(), 2354861276966075475); +} + +#[test] +fn test_lcg128xsl64_true_values() { + // Numbers copied from official test suite (C version). + let mut rng = Lcg128Xsl64::new(42, 54); + + let mut results = [0u64; 6]; + for i in results.iter_mut() { *i = rng.next_u64(); } + let expected: [u64; 6] = [0x86b1da1d72062b68, 0x1304aa46c9853d39, + 0xa3670e9e0dd50358, 0xf9090e529a7dae00, 0xc85b9fd837996f2c, 0x606121f8e3919196]; + assert_eq!(results, expected); +} + +#[cfg(feature="serde1")] +#[test] +fn test_lcg128xsl64_serde() { + use bincode; + use std::io::{BufWriter, BufReader}; + + let mut rng = Lcg128Xsl64::seed_from_u64(0); + + let buf: Vec<u8> = Vec::new(); + let mut buf = BufWriter::new(buf); + bincode::serialize_into(&mut buf, &rng).expect("Could not serialize"); + + let buf = buf.into_inner().unwrap(); + let mut read = BufReader::new(&buf[..]); + let mut deserialized: Lcg128Xsl64 = bincode::deserialize_from(&mut read) + .expect("Could not deserialize"); + + for _ in 0..16 { + assert_eq!(rng.next_u64(), deserialized.next_u64()); + } +} diff --git a/third_party/rust/rand_pcg/tests/lcg64xsh32.rs b/third_party/rust/rand_pcg/tests/lcg64xsh32.rs new file mode 100644 index 0000000000..e05bcc1dfa --- /dev/null +++ b/third_party/rust/rand_pcg/tests/lcg64xsh32.rs @@ -0,0 +1,54 @@ +use rand_core::{RngCore, SeedableRng}; +use rand_pcg::{Lcg64Xsh32, Pcg32}; + +#[test] +fn test_lcg64xsh32_construction() { + // Test that various construction techniques produce a working RNG. + let seed = [1,2,3,4, 5,6,7,8, 9,10,11,12, 13,14,15,16]; + let mut rng1 = Lcg64Xsh32::from_seed(seed); + assert_eq!(rng1.next_u64(), 1204678643940597513); + + let mut rng2 = Lcg64Xsh32::from_rng(&mut rng1).unwrap(); + assert_eq!(rng2.next_u64(), 12384929573776311845); + + let mut rng3 = Lcg64Xsh32::seed_from_u64(0); + assert_eq!(rng3.next_u64(), 18195738587432868099); + + // This is the same as Lcg64Xsh32, so we only have a single test: + let mut rng4 = Pcg32::seed_from_u64(0); + assert_eq!(rng4.next_u64(), 18195738587432868099); +} + +#[test] +fn test_lcg64xsh32_true_values() { + // Numbers copied from official test suite. + let mut rng = Lcg64Xsh32::new(42, 54); + + let mut results = [0u32; 6]; + for i in results.iter_mut() { *i = rng.next_u32(); } + let expected: [u32; 6] = [0xa15c02b7, 0x7b47f409, 0xba1d3330, + 0x83d2f293, 0xbfa4784b, 0xcbed606e]; + assert_eq!(results, expected); +} + +#[cfg(feature="serde1")] +#[test] +fn test_lcg64xsh32_serde() { + use bincode; + use std::io::{BufWriter, BufReader}; + + let mut rng = Lcg64Xsh32::seed_from_u64(0); + + let buf: Vec<u8> = Vec::new(); + let mut buf = BufWriter::new(buf); + bincode::serialize_into(&mut buf, &rng).expect("Could not serialize"); + + let buf = buf.into_inner().unwrap(); + let mut read = BufReader::new(&buf[..]); + let mut deserialized: Lcg64Xsh32 = bincode::deserialize_from(&mut read) + .expect("Could not deserialize"); + + for _ in 0..16 { + assert_eq!(rng.next_u64(), deserialized.next_u64()); + } +} diff --git a/third_party/rust/rand_pcg/tests/mcg128xsl64.rs b/third_party/rust/rand_pcg/tests/mcg128xsl64.rs new file mode 100644 index 0000000000..d58fa75259 --- /dev/null +++ b/third_party/rust/rand_pcg/tests/mcg128xsl64.rs @@ -0,0 +1,54 @@ +use rand_core::{RngCore, SeedableRng}; +use rand_pcg::{Mcg128Xsl64, Pcg64Mcg}; + +#[test] +fn test_mcg128xsl64_construction() { + // Test that various construction techniques produce a working RNG. + let seed = [1,2,3,4, 5,6,7,8, 9,10,11,12, 13,14,15,16]; + let mut rng1 = Mcg128Xsl64::from_seed(seed); + assert_eq!(rng1.next_u64(), 7071994460355047496); + + let mut rng2 = Mcg128Xsl64::from_rng(&mut rng1).unwrap(); + assert_eq!(rng2.next_u64(), 12300796107712034932); + + let mut rng3 = Mcg128Xsl64::seed_from_u64(0); + assert_eq!(rng3.next_u64(), 6198063878555692194); + + // This is the same as Mcg128Xsl64, so we only have a single test: + let mut rng4 = Pcg64Mcg::seed_from_u64(0); + assert_eq!(rng4.next_u64(), 6198063878555692194); +} + +#[test] +fn test_mcg128xsl64_true_values() { + // Numbers copied from official test suite (C version). + let mut rng = Mcg128Xsl64::new(42); + + let mut results = [0u64; 6]; + for i in results.iter_mut() { *i = rng.next_u64(); } + let expected: [u64; 6] = [0x63b4a3a813ce700a, 0x382954200617ab24, + 0xa7fd85ae3fe950ce, 0xd715286aa2887737, 0x60c92fee2e59f32c, 0x84c4e96beff30017]; + assert_eq!(results, expected); +} + +#[cfg(feature="serde1")] +#[test] +fn test_mcg128xsl64_serde() { + use bincode; + use std::io::{BufWriter, BufReader}; + + let mut rng = Mcg128Xsl64::seed_from_u64(0); + + let buf: Vec<u8> = Vec::new(); + let mut buf = BufWriter::new(buf); + bincode::serialize_into(&mut buf, &rng).expect("Could not serialize"); + + let buf = buf.into_inner().unwrap(); + let mut read = BufReader::new(&buf[..]); + let mut deserialized: Mcg128Xsl64 = bincode::deserialize_from(&mut read) + .expect("Could not deserialize"); + + for _ in 0..16 { + assert_eq!(rng.next_u64(), deserialized.next_u64()); + } +} |