You can't, if they don't want to pay the hours worked for implementing the unit testing, you better have them in writing on email or a contract stating this. Otherwise, always estimate your feature with testing included: Android -> Espresso, Mockito, JUnit, Robolectric; iOS -> XCTest, XCUITest, etc.

As a senior Android engineer, I prioritize setting up CI/CD pipelines to automate testing, build generation, and sharing for faster feedback. I integrate tools like Firebase Test Lab for device testing, use JUnit and Espresso for reliable test coverage, and automate build publishing to the Play Store for seamless releases. This ensures quality and efficiency under tight deadlines.

We can start automating testing right from the beginning. That way, we can catch issues early and avoid major setbacks later. I’d focus on automating the key features first, those that really impact the user experience. I’d use tools like Appium or Espresso, which are easy to set up and integrate well with CI/CD systems. I’d also make sure tests run automatically every time we push new code. Rather than testing everything at once, I’d test incrementally as we build, keeping the process quick and efficient.

To integrate automated testing into a mobile app project with tight deadlines, prioritize creating test scripts for critical app functionalities early in the development process. Use robust testing frameworks like Appium or XCTest to streamline the process and ensure compatibility across platforms. Implement Continuous Integration/Continuous Deployment (CI/CD) pipelines to run automated tests with every build, catching issues promptly. Focus on modular testing, starting with unit and integration tests, to avoid bottlenecks. This ensures high-quality deliverables while staying on schedule.

Focus on critical features or areas prone to bugs first, ensuring solid core functionality. Write reusable test scripts to scale and adapt as new features are added. Services like BrowserStack or LambdaTest save time by simulating various devices and OS combinations, eliminating the need for physical setups.

To integrate automated testing effectively under tight deadlines, I prioritize writing unit and integration tests early on, ensuring core functionality is validated as development progresses. I use continuous integration (CI) tools like Jenkins or GitHub Actions to automate the testing process, running tests with every code change to catch issues early. Cloud-based testing services like BrowserStack allow for efficient cross-device testing without needing an extensive hardware setup. This approach ensures quick feedback and high-quality releases while maintaining speed during development.