Int4 Messenger

Int4 Messenger is a dedicated virtualization engine supporting manual testing of integrated processes. It also enables automatic tests in specific scenarios.

Int4 Messenger operates by building a dedicated virtualization layer over the basic features available in the Int4 Suite, and uses the same basic configuration for System Lines, Environments, Automation Objects, and Test Cases internally for processing. Familiarity with the Int4 APITester manual is required to use Int4 Messenger effectively.

Principles of Operation

Int4 Messenger actively monitors selected integration pipelines of integration servers and selected IDoc repositories in the SAP system by looking for messages intended for specified receivers. In addition, Int4 Messenger captures all messages that match configured virtualization scenarios.

Based on configuration, Int4 Messenger generates response message. Depending on the operation mode, Int4 Messenger can either automatically inject the response message into a specific communication pipeline or leave the response for user revision before injection.

Int4 Messenger can be used to emulate the presence and behavior of integrated systems, effectively virtualizing them to execute an integration scenario.

Open

Example of Service Virtualization, in a purchase process scenario.

Internal Organization

Int4 Messenger builds upon the concepts of System Lines, Environments, Automation Objects, and Test Cases from Int4 APITester.

Two additional entities are introduced to support virtualization:

Service Virtualization Objects

These objects define capture and injection points for a specific virtualization application. Users can define behavior such as Injection, Synchronous, or Asynchronous and configure the response profile (e.g., existing mapping) or select responding from historical messages according to the configured values.

Service Virtualization Scenarios

Service Virtualization Scenarios bind Service Virtualization Objects to a specific landscape and enable the virtualization runtime for the pair. At the level of Service Virtualization Scenario, it is possible to define whether it’s enabled and specify whether the responses should be automatic or require user intervention.