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Diffstat (limited to 'absl/synchronization/internal/per_thread_sem_test.cc')
-rw-r--r--absl/synchronization/internal/per_thread_sem_test.cc7
1 files changed, 5 insertions, 2 deletions
diff --git a/absl/synchronization/internal/per_thread_sem_test.cc b/absl/synchronization/internal/per_thread_sem_test.cc
index 2b52ea76..c29d8403 100644
--- a/absl/synchronization/internal/per_thread_sem_test.cc
+++ b/absl/synchronization/internal/per_thread_sem_test.cc
@@ -153,12 +153,15 @@ TEST_F(PerThreadSemTest, WithTimeout) {
TEST_F(PerThreadSemTest, Timeouts) {
absl::Time timeout = absl::Now() + absl::Milliseconds(50);
+ // Allow for a slight early return, to account for quality of implementation
+ // issues on various platforms.
+ const absl::Duration slop = absl::Microseconds(200);
EXPECT_FALSE(Wait(timeout));
- EXPECT_LE(timeout, absl::Now());
+ EXPECT_LE(timeout, absl::Now() + slop);
absl::Time negative_timeout = absl::UnixEpoch() - absl::Milliseconds(100);
EXPECT_FALSE(Wait(negative_timeout));
- EXPECT_LE(negative_timeout, absl::Now()); // trivially true :)
+ EXPECT_LE(negative_timeout, absl::Now() + slop); // trivially true :)
Post(GetOrCreateCurrentThreadIdentity());
// The wait here has an expired timeout, but we have a wake to consume,