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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /third_party/rust/rand_pcg/tests
parentInitial commit. (diff)
downloadfirefox-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.rs55
-rw-r--r--third_party/rust/rand_pcg/tests/lcg64xsh32.rs54
-rw-r--r--third_party/rust/rand_pcg/tests/mcg128xsl64.rs54
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());
+ }
+}