Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 57 insertions, 0 deletions

diff --git a/third_party/rust/instant/tests/wasm.rs b/third_party/rust/instant/tests/wasm.rs
new file mode 100644
index 0000000000..7dacdc4f9e
--- /dev/null
+++ b/third_party/rust/instant/tests/wasm.rs
@@ -0,0 +1,57 @@
+extern crate wasm_bindgen_test;

+

+use instant::{Instant, SystemTime};

+use std::time::Duration;

+use wasm_bindgen_test::*;

+

+wasm_bindgen_test_configure!(run_in_browser);

+// run these tests using: wasm-pack test --chrome --headless -- --features wasm-bindgen

+

+#[wasm_bindgen_test]

+fn test_instant_now() {

+    let now = Instant::now();

+    #[cfg(feature = "inaccurate")]

+    while now.elapsed().as_millis() == 0 {}

+    #[cfg(not(feature = "inaccurate"))]

+    assert!(now.elapsed().as_nanos() > 0);

+}

+

+#[wasm_bindgen_test]

+fn test_duration() {

+    let now = Instant::now();

+    let one_sec = Duration::from_secs(1);

+    assert!(now.elapsed() < one_sec);

+}

+

+// Duration::new will overflow when you have u64::MAX seconds and one billion nanoseconds.

+// <https://doc.rust-lang.org/std/time/struct.Duration.html#method.new>

+const ONE_BILLION: u32 = 1_000_000_000;

+

+#[wasm_bindgen_test]

+fn test_checked_add() {

+    let now = Instant::now();

+

+    assert!(now.checked_add(Duration::from_millis(1)).is_some());

+    assert_eq!(

+        None,

+        now.checked_add(Duration::new(u64::MAX, ONE_BILLION - 1))

+    );

+}

+

+#[wasm_bindgen_test]

+fn test_checked_sub() {

+    let now = Instant::now();

+

+    assert!(now.checked_sub(Duration::from_millis(1)).is_some());

+    assert!(now

+        .checked_sub(Duration::new(u64::MAX, ONE_BILLION - 1))

+        .is_none());

+}

+

+#[wasm_bindgen_test]

+fn test_system_time() {

+    assert!(SystemTime::UNIX_EPOCH

+        .duration_since(SystemTime::now())

+        .is_err());

+}

+