Lecture Notes: Types of Testing

Introduction

Welcome to Gate Smashers.
Overview of various testing types relevant for competitive exams, college/university exams, and interviews.
Importance of taking notes as this categorization is unique.
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Testing types categorized based on levels:
1. Unit Testing
2. Integration Testing
3. System Testing
4. Regression Testing

Unit Testing:
- Conducted during the coding phase (development phase).
- Focuses on testing small units/modules of code.
- Each unit is the smallest element of software (e.g., a function).
Integration Testing:
- Conducted after unit testing in the testing phase.
- Combines individual units to ensure compatibility and proper integration.
- Types of integration testing:
  - Bang-Bang
  - Top-Down
  - Bottom-Up
  - Mixed
System Testing:
- Testing the complete system after integration.
- Example: Testing a completed car with all parts assembled.
- Categories based on who performs the testing:
  - Alpha Testing: Conducted by the development team.
  - Beta Testing: Friendly customers test the product.
  - Acceptance Testing: End-users test the product before accepting it.
Non-Functional Testing:
- Focuses on performance, not functionality.
- Types include:
  - Volume Testing
  - Load Testing
  - Stress Testing
  - Security Testing
  - Configuration Compatibility Testing
Regression Testing:
- Conducted in the maintenance phase after a product is accepted by the customer.
- Ensures that new updates do not affect existing features.
- Involves seeding artificial errors to test stability.

Summary of key testing types based on levels and phases of software development.
Emphasis on understanding the difference between testing types and test design approaches (black box vs. white box).
Highlighted that these points are essential for understanding and categorizing testing types.