From 2ffff621a46d04d5b29bb056ba7837789c0b52ba Mon Sep 17 00:00:00 2001
From: Yash Tibrewal <yashkt@google.com>
Date: Thu, 13 Oct 2022 16:06:51 -0700
Subject: [PATCH] OpenCensusTest: Fix flakiness (#31349)

---
 test/cpp/ext/filters/census/stats_plugin_end2end_test.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/test/cpp/ext/filters/census/stats_plugin_end2end_test.cc b/test/cpp/ext/filters/census/stats_plugin_end2end_test.cc
index aa736e16ce7..7d022be30e6 100644
--- a/test/cpp/ext/filters/census/stats_plugin_end2end_test.cc
+++ b/test/cpp/ext/filters/census/stats_plugin_end2end_test.cc
@@ -169,6 +169,9 @@ class StatsPluginEnd2EndTest : public ::testing::Test {
 
     stub_ = EchoTestService::NewStub(grpc::CreateChannel(
         server_address_, grpc::InsecureChannelCredentials()));
+
+    // Clear out any previous spans
+    ::opencensus::trace::exporter::SpanExporterTestPeer::ExportForTesting();
   }
 
   void ResetStub(std::shared_ptr<Channel> channel) {
@@ -659,7 +662,9 @@ TEST_F(StatsPluginEnd2EndTest, TestRetryStatsWithAdditionalRetries) {
             ::testing::ElementsAre(client_method_name_),
             ::testing::Property(
                 &Distribution::mean,
-                ::testing::AllOf(::testing::Ge(50), ::testing::Le(300))))));
+                ::testing::AllOf(
+                    ::testing::Ge(50),
+                    ::testing::Le(500 * grpc_test_slowdown_factor()))))));
   }
 }