From 937c9f7ae705ba3f1ba86a235430a18810cc2e00 Mon Sep 17 00:00:00 2001
From: Markus Jonsson <markus.jonsson@axial.net>
Date: Mon, 11 Mar 2024 16:36:30 +0000
Subject: [PATCH] * Adding (failing) testcase to cover Issue #2029

---
 .../tests/test_duplicate.py                   | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 instrumentation/opentelemetry-instrumentation-celery/tests/test_duplicate.py

diff --git a/instrumentation/opentelemetry-instrumentation-celery/tests/test_duplicate.py b/instrumentation/opentelemetry-instrumentation-celery/tests/test_duplicate.py
new file mode 100644
index 0000000000..83bad6e1d4
--- /dev/null
+++ b/instrumentation/opentelemetry-instrumentation-celery/tests/test_duplicate.py
@@ -0,0 +1,30 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import unittest
+
+from opentelemetry.instrumentation.celery import CeleryInstrumentor
+
+class TestUtils(unittest.TestCase):
+
+    def test_duplicate_instrumentaion(self):
+        first = CeleryInstrumentor()
+        first.instrument()
+        second = CeleryInstrumentor()
+        second.instrument()
+        CeleryInstrumentor().uninstrument()
+        self.assertIsNotNone(first.metrics)
+        self.assertIsNotNone(second.metrics)
+        self.assertEqual(first.task_id_to_start_time,{})
+        self.assertEqual(second.task_id_to_start_time, {})