Stateful Property-Based Testing with PropEr for Beginners

Testing systems with evolving states can be challenging, often missing edge cases and subtle bugs that traditional methods overlook. Property-based testing offers a powerful approach, and stateful properties are crucial for complex, interactive applications. This course will guide you through the foundational concepts of stateful property-based testing using PropEr, empowering you to systematically identify and validate the behavior of systems that change over time. What you'll learn: * Learn the fundamental principles of property-based testing and its advantages over example-based testing. * Understand the core components of PropEr, including generators, commands, and state machines. * Apply the state machine model to design abstract scenarios for stateful systems. * Practice implementing stateful properties in PropEr, separating abstract models from concrete system interactions. * Analyze and interpret test results from PropEr, including shrinking and counterexamples. * Configure tests for reproducibility and efficient debugging of stateful failures. The course begins with an introduction to property-based testing, then dives into PropEr's syntax and how to model stateful systems. You will then learn to implement and execute stateful properties, concluding with strategies for debugging and understanding test failures. This course is designed for beginners interested in robust software testing, particularly developers working with systems that have complex state transitions. No prior experience with property-based testing or PropEr is required. Enroll now to transform your approach to testing complex, stateful applications.