When is API testing done?

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Introduction

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When is API Testing Done?

API Testing is a critical phase in the software development lifecycle, and it is conducted at various stages to ensure the robustness and reliability of applications. Here are the key instances when API testing is performed:

1. During Development

• Purpose: Ensure API functionalities align with the design.
• Activities:
  • Unit testing of individual API components.
  • Testing input and output parameters for correctness.
  • Verifying error codes and messages.

2. Integration Testing

• Purpose: Validate the interaction between different components or systems.
• Activities:
  • Confirm proper communication between integrated components.
  • Verify data flow and synchronization.
  • Check compatibility with other integrated systems.

3. System Testing

• Purpose: Validate the complete system's functionality.
• Activities:
  • Confirm end-to-end scenarios.
  • Validate data integrity across the system.
  • Ensure APIs handle diverse inputs and scenarios.

4. Regression Testing

• Purpose: Ensure that new changes don't adversely affect existing functionalities.
• Activities:
  • Revalidate previously tested APIs after code changes.
  • Confirm that updates don't break existing integrations.

5. Performance Testing

• Purpose: Assess the API's response time, scalability, and reliability under varying loads.
• Activities:
  • Load testing to evaluate response times under different user loads.
  • Stress testing to assess system stability under extreme conditions.
  • Endurance testing to ensure sustained performance over time.

6. Security Testing

• Purpose: Identify and rectify vulnerabilities to safeguard against unauthorized access.
• Activities:
  • Authentication and authorization testing.
  • Data encryption and decryption validation.
  • Prevention of common security threats.

Conclusion

In conclusion, API Testing is a comprehensive process that spans various stages of the software development lifecycle. Whether you are a beginner or an experienced professional, my online coaching for "API & Web Service Testing Training" ensures that you are well-equipped with the skills needed to excel in this crucial domain. Join my coaching sessions on UrbanPro.com for the best online learning experience.