From 69f9cead914046266085f16e4181f4d16a98e425 Mon Sep 17 00:00:00 2001
From: Diego Hurtado <ocelotl@users.noreply.github.com>
Date: Thu, 3 Feb 2022 10:01:55 -0600
Subject: [PATCH] Mark test as flaky

Fixes #2436
---
 dev-requirements.txt                                         | 1 +
 .../tests/metrics/test_periodic_exporting_metric_reader.py   | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/dev-requirements.txt b/dev-requirements.txt
index 44e20801416..b0db3ff7a20 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -13,3 +13,4 @@ readme-renderer~=24.0
 grpcio-tools~=1.41.0
 mypy-protobuf~=3.0.0
 protobuf~=3.18.1
+flaky>=3.7.0
diff --git a/opentelemetry-sdk/tests/metrics/test_periodic_exporting_metric_reader.py b/opentelemetry-sdk/tests/metrics/test_periodic_exporting_metric_reader.py
index ca7a1676308..4552a69063f 100644
--- a/opentelemetry-sdk/tests/metrics/test_periodic_exporting_metric_reader.py
+++ b/opentelemetry-sdk/tests/metrics/test_periodic_exporting_metric_reader.py
@@ -15,6 +15,8 @@
 import time
 from unittest.mock import Mock
 
+from flaky import flaky
+
 from opentelemetry.sdk._metrics.export import (
     MetricExporter,
     PeriodicExportingMetricReader,
@@ -99,13 +101,14 @@ def test_ticker_called(self):
         self.assertTrue(collect_mock.assert_called_once)
         pmr.shutdown()
 
+    @flaky(max_runs=3, min_passes=1)
     def test_ticker_collects_metrics(self):
         exporter = FakeMetricsExporter()
 
         pmr = self._create_periodic_reader(
             metrics_list, exporter, interval=100
         )
-        time.sleep(0.11)
+        time.sleep(0.15)
         self.assertEqual(exporter.metrics, metrics_list)
         pmr.shutdown()