Add tests to verify generated Postman samples (#17444)

samples/schema/postman-collection/python/test/test_endpoints.py

@@ -0,0 +1,27 @@
+"""
+    Testing Postman generator output
+"""
+from __future__ import absolute_import
+
+import unittest
+
+import json
+
+
+class TestParameters(unittest.TestCase):
+
+    def setUp(self):
+        with open('./postman.json', 'r') as file:
+            self.json_data = json.load(file)
+
+    def tearDown(self):
+        pass
+
+    def test_endpoint_deprecated(self):
+        # path
+        path = self.json_data['item'][0]['item'][0]
+        self.assertEqual(path['name'], '/users/:userId (DEPRECATED)')
+
+
+if __name__ == '__main__':
+    unittest.main()