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mbrt · Nov 6, 2015 · ba7b84a · ba7b84a
1 parent b468c7b
commit ba7b84a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/time_utils.rs b/src/time_utils.rs
@@ -65,6 +65,8 @@ pub mod test_utils {
     use std::sync::{Mutex, MutexGuard};
 
 
+    // A global mutex is needed because tests are run in parallel
+    // We need to avoid tests change time zone concurrently
     lazy_static! {
         static ref TZLOCK: Mutex<i32> = Mutex::new(0);
     }