Testing with IBM WebSphere MQ messages
You can test WebSphere® MQ messages using the WebSphere MQ transport method or JMS interface. IBM® DevOps Test Integrations and APIs (Test Integrations and APIs) also supports testing WebSphere MQ on z/OS systems.

Test Integrations and APIs includes a WebSphere MQ transport, which provides support for queue messaging-types.
You can also use the Java™ message service (JMS) interface to connect to WebSphere MQ.
For information on testing WebSphere MQ on z/OS, see Testing with WebSphere MQ on z/OS systems