Author: Rohan V. Patil, Moumita Chatterjee
Abstract: Unit testing is a fundamental practice in software development, ensuring that individual components of an application function correctly in isolation. In mobile application development, unit testing helps maintain code quality, reduces defects, and facilitates refactoring. Android developers primarily use JUnit, while iOS developers rely on XCTest for automated unit testing. This paper presents a comprehensive study of unit testing in Android and iOS platforms, discussing frameworks, setup, best practices, testing strategies, and integration with Continuous Integration/Continuous Deployment (CI/CD) pipelines. Examples, comparative tables, and figures illustrate the workflow and lifecycle of unit tests. The study emphasizes that systematic unit testing improves maintainability, enhances reliability, and supports agile development practices for mobile applications.
Keywords: Unit testing, Android, JUnit, iOS, XCTest, mobile application development, CI/CD
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