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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/getrandom-0.1.14/tests
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/getrandom-0.1.14/tests')
-rw-r--r--vendor/getrandom-0.1.14/tests/common.rs68
1 files changed, 68 insertions, 0 deletions
diff --git a/vendor/getrandom-0.1.14/tests/common.rs b/vendor/getrandom-0.1.14/tests/common.rs
new file mode 100644
index 000000000..afefa0312
--- /dev/null
+++ b/vendor/getrandom-0.1.14/tests/common.rs
@@ -0,0 +1,68 @@
+#[cfg(feature = "wasm-bindgen")]
+use wasm_bindgen_test::*;
+
+use getrandom::getrandom;
+
+#[cfg(feature = "test-in-browser")]
+wasm_bindgen_test_configure!(run_in_browser);
+
+#[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)]
+#[test]
+fn test_zero() {
+ // Test that APIs are happy with zero-length requests
+ getrandom(&mut [0u8; 0]).unwrap();
+}
+
+#[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)]
+#[test]
+fn test_diff() {
+ let mut v1 = [0u8; 1000];
+ getrandom(&mut v1).unwrap();
+
+ let mut v2 = [0u8; 1000];
+ getrandom(&mut v2).unwrap();
+
+ let mut n_diff_bits = 0;
+ for i in 0..v1.len() {
+ n_diff_bits += (v1[i] ^ v2[i]).count_ones();
+ }
+
+ // Check at least 1 bit per byte differs. p(failure) < 1e-1000 with random input.
+ assert!(n_diff_bits >= v1.len() as u32);
+}
+
+#[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)]
+#[test]
+fn test_huge() {
+ let mut huge = [0u8; 100_000];
+ getrandom(&mut huge).unwrap();
+}
+
+#[cfg(any(unix, windows, target_os = "redox", target_os = "fuchsia"))]
+#[test]
+fn test_multithreading() {
+ use std::sync::mpsc::channel;
+ use std::thread;
+
+ let mut txs = vec![];
+ for _ in 0..20 {
+ let (tx, rx) = channel();
+ txs.push(tx);
+
+ thread::spawn(move || {
+ // wait until all the tasks are ready to go.
+ rx.recv().unwrap();
+ let mut v = [0u8; 1000];
+
+ for _ in 0..100 {
+ getrandom(&mut v).unwrap();
+ thread::yield_now();
+ }
+ });
+ }
+
+ // start all the tasks
+ for tx in txs.iter() {
+ tx.send(()).unwrap();
+ }
+}