Component Testing

Component Testing is a type of software testing that focuses on verifying the functionality of individual components or units of a system. It is typically performed during the early stages of development to ensure that each component works correctly before integrating it into the larger system.

Key components of component testing include:

• Isolation of Components: Testing individual modules, functions, or classes in isolation from the rest of the application to ensure they perform as expected.
• Test Cases: Specific test cases are written for each component to validate its behavior, inputs, and outputs.
• Unit Testing: Often synonymous with component testing, unit testing involves checking individual units of code for correctness and functionality.
• Error Handling: Verifying that the component handles error conditions and edge cases properly, such as invalid inputs or unexpected behavior.
• Mocking: Using mock objects or stubs to simulate interactions with other components or systems to isolate the component under test.

Component testing helps ensure the reliability of individual parts of the system, catching issues early and enabling faster development and integration.