Software testing is the process of evaluating a system or its components to find defects and ensure it meets the required standards.
Types of Testing:
Manual Testing – Performed by humans without automation.
Automation Testing – Uses tools/scripts for testing (e.g., Selenium, JUnit).
Levels of Testing:
Unit Testing – Tests individual components (done by developers).
Integration Testing – Ensures different modules work together.
System Testing – Validates the entire system as a whole.
Acceptance Testing – Confirms if the software meets user requirements.
Testing Methods:
Black Box Testing – Focuses on input and output without internal code knowledge.
White Box Testing – Tests internal logic, structure, and code implementation.
Grey Box Testing – A mix of both black and white box testing.
Functional vs Non-Functional Testing:
Functional Testing – Ensures the software performs expected functions correctly.
Non-Functional Testing – Evaluates performance, security, usability, etc.
Regression Testing – Ensures new updates don’t break existing functionality.
Performance Testing – Tests software speed, responsiveness, and stability under load.
Security Testing – Identifies vulnerabilities to prevent cyber threats.
Bug Life Cycle – Tracks the process from identifying to fixing a defect.
Importance – Ensures software quality, reliability, user satisfaction, and compliance with requirements.