From a2020e2d025236d48bdbf89f1ebf691bb89a90e2 Mon Sep 17 00:00:00 2001
From: yifeizhuang <zivy@google.com>
Date: Fri, 8 Sep 2023 14:26:59 -0700
Subject: [PATCH] fix flakiness

---
 .../java/io/grpc/internal/ManagedChannelImplTest.java     | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/core/src/test/java/io/grpc/internal/ManagedChannelImplTest.java b/core/src/test/java/io/grpc/internal/ManagedChannelImplTest.java
index 8cb747995d2..da2bc072afc 100644
--- a/core/src/test/java/io/grpc/internal/ManagedChannelImplTest.java
+++ b/core/src/test/java/io/grpc/internal/ManagedChannelImplTest.java
@@ -1096,8 +1096,7 @@ public ClientStreamTracer newClientStreamTracer(StreamInfo info, Metadata header
     ClientCall<String, Integer> call = channel.newCall(method, callOptions);
     call.start(mockCallListener, new Metadata());
 
-    int nsDelayMillis = 200;
-    Thread.sleep(nsDelayMillis);
+    Thread.sleep(500);
     nsFactory.allResolved();
     Subchannel subchannel =
         createSubchannelSafely(helper, addressGroup, Attributes.EMPTY, subchannelStateListener);
@@ -1120,9 +1119,10 @@ public ClientStreamTracer newClientStreamTracer(StreamInfo info, Metadata header
         same(method), any(Metadata.class), callOptionsCaptor.capture(),
         tracersCaptor.capture());
     assertThat(Arrays.asList(tracersCaptor.getValue()).contains(tracer)).isTrue();
-    long realDelay = callOptionsCaptor.getValue().getOption(NAME_RESOLUTION_DELAYED);
+    Long realDelay = callOptionsCaptor.getValue().getOption(NAME_RESOLUTION_DELAYED);
     assertThat(realDelay).isNotNull();
-    assertThat(realDelay).isAtLeast(TimeUnit.MILLISECONDS.toNanos(nsDelayMillis));
+    assertThat(realDelay).isAtLeast(
+        TimeUnit.MILLISECONDS.toNanos(400));//sleep not precise
   }
 
   @Test