serial_test

Author: rukai

Cargo.toml

@@ -61,6 +61,7 @@ wasi = "0.11"
 [dev-dependencies]
 average = "0.14"
 criterion = "=0.3.3"
+serial_test = "3.2"
 
 [target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dev-dependencies]
 wasm-bindgen-test = "0.3"

src/instant.rs

@@ -279,20 +279,19 @@ impl Into<prost_types::Timestamp> for Instant {
 
 #[cfg(test)]
 mod tests {
-    use once_cell::sync::Lazy;
-
     use super::Instant;
     use crate::{with_clock, Clock};
+    use serial_test::serial;
+    use std::sync::LazyLock;
     use std::time::Duration;
     use std::{sync::Mutex, thread};
 
-    static RECENT_LOCK: Lazy<Mutex<()>> = Lazy::new(|| Mutex::new(()));
-
     #[test]
     #[cfg_attr(
         all(target_arch = "wasm32", target_os = "unknown"),
         ignore = "WASM thread cannot sleep"
     )]
+    #[serial]
     fn test_now() {
         let t0 = Instant::now();
         thread::sleep(Duration::from_millis(15));
@@ -311,9 +310,8 @@ mod tests {
         all(target_arch = "wasm32", target_os = "unknown"),
         ignore = "WASM thread cannot sleep"
     )]
+    #[serial]
     fn test_recent() {
-        let _guard = RECENT_LOCK.lock().unwrap();
-
         // Ensures that the recent global value is zero so that the fallback logic can kick in.
         crate::set_recent(Instant(0));
 
@@ -346,9 +344,8 @@ mod tests {
         all(target_arch = "wasm32", target_os = "unknown"),
         wasm_bindgen_test::wasm_bindgen_test
     )]
+    #[serial]
     fn test_mocking() {
-        let _guard = RECENT_LOCK.lock().unwrap();
-
         // Ensures that the recent global value is zero so that the fallback logic can kick in.
         crate::set_recent(Instant(0));
 
@@ -380,6 +377,7 @@ mod tests {
         all(target_arch = "wasm32", target_os = "unknown"),
         wasm_bindgen_test::wasm_bindgen_test
     )]
+    #[serial]
     fn checked_arithmetic_u64_overflow() {
         fn nanos_to_dur(total_nanos: u128) -> Duration {
             let nanos_per_sec = Duration::from_secs(1).as_nanos();