🧪 Postman Regression API Test Suite

This project is a Postman-based API test suite designed to perform regression testing on the Postman Echo service — a tool for testing RESTful APIs. The collection verifies status codes, schema compliance, headers, performance, and data validation using robust test scripts.

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📁 Project Structure

📦postman-api-regression-suite/
├── Regression testing.postman_collection.json
├── TEST_PLAN.md
├── screenshots 
├── TEST_CASES.md
├── LICENSE
└── README.md

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🎯 Features

✅ Status Code Check
✅ JSON Schema Validation
✅ Query Param Echo Test
✅ Header Verification
✅ Response Time Assertion

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🚀 How to Use

This project assumes you have Postman installed.
Download Postman

1. Clone the Repository

git clone https://github.com/YourUsername/postman-api-regression-suite.git
cd postman-api-regression-suite

2. Open the Collection in Postman

• Open Postman.
• Click "Import".
• Select Regression testing.postman_collection.json.

3. Run the Tests

• Click the Runner tab.
• Select the imported collection.
• Hit Run to execute all test cases.

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📋 Test Coverage

Test ID	Description
TC01	Verify status code is 200
TC02	Validate JSON schema
TC03	Confirm correct query param echo
TC04	Assert response time < 200ms
TC05	Validate response headers

🔍 See TEST_CASES.md for details
📘 Refer to TEST_PLAN.md for test strategy

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📜 License

This project is licensed under the MIT License.
See LICENSE for full terms.

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👤 Author

Tommy Xu
📧 [email protected]
🌐 GitHub Profile

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🔖 Tags

postman api-testing rest-api qa-automation regression-suite