SERVER-39871 Make catalog_raii_test more resistant to clock issues on Windows

1 files changed, 3 insertions, 1 deletions

diff --git a/src/mongo/db/catalog_raii_test.cpp b/src/mongo/db/catalog_raii_test.cpp
index 594cb6d29d9..17f015a7cca 100644
--- a/src/mongo/db/catalog_raii_test.cpp
+++ b/src/mongo/db/catalog_raii_test.cpp
@@ -72,7 +72,9 @@ void failsWithLockTimeout(stdx::function<void()> func, Milliseconds timeoutMilli
     } catch (const ExceptionFor<ErrorCodes::LockTimeout>& ex) {
         log() << ex;
         Date_t t2 = Date_t::now();
-        ASSERT_GTE(t2 - t1, timeoutMillis);
+        // Adding a "grace period" of 1 ms here to avoid infrequent test failures due to
+        // anomalies in the clock on old versions of Windows.
+        ASSERT_GTE(t2 - t1 + Milliseconds(1), timeoutMillis);
     }
 }