API testing

 

1. Smoke Testing

• Purpose: Quickly validate if the API is functioning correctly without detailed verification.

• Key Check: Ensure “Nothing breaks?”

2. Functional Testing

• Purpose: Verify the API’s functionality against functional requirements.

• Steps:

• Input data into the application.

• Compare actual results with expected outcomes.

3. Integration Testing

• Purpose: Test the interaction between multiple APIs to ensure they work together seamlessly.

• Key Process:

• Use input data from multiple sources.

• Compare results against a test plan.

4. Regression Testing

• Purpose: Confirm that recent updates or changes don’t disrupt existing API functionality.

• Key Step: Compare results between the old and updated application versions.

5. Load Testing

• Purpose: Evaluate the API’s performance under expected load conditions.

• Tool Example: Apache JMeter.

• Goal: Assess the application’s capacity.

6. Stress Testing

• Purpose: Test API behavior under extreme or high load conditions to identify breaking points.

• Tool Example: Apache JMeter.

• Focus: Check stability and robustness under high traffic.

7. Security Testing

• Purpose: Validate the API’s resistance to potential external threats or vulnerabilities.

• Key Check: Ensure “Nothing breaks?” under malicious attacks.

8. UI Testing

• Purpose: Verify how the API integrates and interacts with the User Interface (UI).

• Goal: Ensure smooth and consistent interaction between UI and APIs.

9. Fuzz Testing

• Purpose: Test the API’s stability and robustness by sending unexpected or invalid data.

• Goal: Identify vulnerabilities or errors.