Citrus is a test framework written in Java that enables automated integration testing of message-based enterprise SOA applications. The tool can easily simulate surrounding systems across various transports and protocols (e.g. JMS, SOAP WebServices, HTTP, TCP/IP, etc.) in order to perform end-to-end use case testing. Citrus provides strong validation mechanisms for XML message contents and allows you to build complex testing logic such as sending and receiving messages, database validation, automatic retries, variable definitions, dynamic message contents, error simulation, and many more.
Hatteras is a business events subscription engine which makes up one component of the Fogcutter Suite. It works with Quoddy to provide the ability for users to create subscriptions to business events on the organization's ESB infrastructure. It connects to Quoddy, downloads all defined subscriptions, then listens for matching messages. Messages which match a subscription are persisted to an XML database, and Hatteras then sends a notification to Quoddy which creates a subscription item record which can be rendered in the user's stream. Quoddy and Hatteras thereby provide seamless access to important business events, alongside other import pieces of content the user has selected.