Write MUnit to Validate API Integration (Mule 4)

Developing and designing new MUnit test cases for the same integration flow is an additional effort for the development and delivery team if any changes in the same integration flow come in the existing flows regarding request and response structures. To reduce such a repetitive approach in MuleSoft integrations, a configuration- and parameterized-based approach is introduced in the development.

This blog will help you reproduce downstream API behaviors w.r.t. HTTP error codes using MUnit without real-time integration with the process or system APIs. Developers or architects will not be required to design or develop a new MUnit flow if a new error code is added in future enhancement inflow.