Android Testing Codelabs
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Google's official Android testing guide explaining the testing pyramid, local unit tests, instrumented tests, and UI testing with Espresso and UI Automator. Developers learn how to structure testable app architecture and write automated tests that run on the JVM, emulators or devices.
More resources on Mobile Testing
appium.io
Appium.io is the official site for Appium, an open-source, cross-platform mobile test automation framework that lets you automate iOS and Android apps using the WebDriver protocol. The site offers installation guides, API docs, driver information, tutorials, downloads, and community resources.
ministryoftesting.com
Ministry of Testing is a community hub for software testers, offering articles, courses, events (such as TestBash), podcasts, and an active forum with practical resources to learn and improve testing skills, including game testing.
Apple XCTest Documentation
Apple's reference documentation for XCTest, the framework for writing unit, performance and UI tests for iOS and macOS apps in Xcode. Explains test cases, assertions, asynchronous expectations and XCUITest element queries so developers can build automated test suites for their apps.
Test Automation University
Free online school run by Applitools offering short video courses on test automation, including Selenium WebDriver, Cypress, Appium, API testing and visual testing. Learners can build working automated test suites for web, mobile and API applications.
Appium Recipes
Problem-and-solution guide to Appium, the open-source automation tool for native, hybrid and mobile web apps on Android and iOS. Readers learn to set up Appium, locate elements, perform gestures and build maintainable automated mobile test suites.