What type of testing would you conduct to check individual components of a Mendix application?

Unit testing is the appropriate choice when it comes to checking individual components of a Mendix application. This type of testing focuses on verifying the functionality of specific elements in isolation, ensuring that each component behaves as expected according to its design. In the context of a Mendix application, unit tests can be performed on microflows, nanoflows, widgets, and other individual elements, allowing developers to identify and rectify issues at an early stage of development.

While end-to-end testing evaluates the application as a whole by simulating real-world usage scenarios, and integration testing assesses the interactions between different components or systems, these approaches do not primarily focus on individual components. Load testing, on the other hand, is concerned with measuring how a system performs under high demand, which is also not relevant to checking single components. Therefore, unit testing is essential for ensuring that each part of the application functions correctly before it integrates with other components or is subjected to broader testing methodologies.