Collections and folders in Postman - Test Execution Trace

Test Overview

This test verifies that a Postman collection contains a specific folder and that the folder has the expected number of requests. It ensures the collection structure is correct for organized API testing.

Test Code - unittest

Postman

import unittest
from postman_collection import Collection

class TestPostmanCollection(unittest.TestCase):
    def setUp(self):
        # Load collection JSON file
        with open('sample_collection.json', 'r', encoding='utf-8') as f:
            self.collection = Collection.from_json(f.read())

    def test_folder_exists_and_request_count(self):
        # Check if folder named 'User APIs' exists
        folder = next((f for f in self.collection.folders if f.name == 'User APIs'), None)
        self.assertIsNotNone(folder, 'Folder "User APIs" should exist in collection')

        # Check folder has exactly 3 requests
        self.assertEqual(len(folder.requests), 3, 'Folder "User APIs" should contain 3 requests')

if __name__ == '__main__':
    unittest.main()

Execution Trace - 6 Steps

Step	Action	System State	Assertion	Result
1	Test starts	Python unittest framework initialized	-	PASS
2	Loads 'sample_collection.json' file	Collection JSON content loaded into memory	-	PASS
3	Parses collection JSON into Collection object	Collection object created with folders and requests	-	PASS
4	Searches for folder named 'User APIs'	Folder list scanned	Folder 'User APIs' is found (not None)	PASS
5	Counts requests inside 'User APIs' folder	Folder contains requests	Folder has exactly 3 requests	PASS
6	Test ends	All assertions passed	-	PASS

Failure Scenario

Failing Condition: Folder named 'User APIs' does not exist or has a different number of requests

Execution Trace Quiz - 3 Questions

What does the test check first in the Postman collection?

A If the collection file is empty

B If the collection has any requests

C If the folder named 'User APIs' exists

D If the folder has more than 5 requests

Key Result

Always verify the structure of your Postman collections by checking folders and request counts to keep your API tests organized and reliable.