Mock Component
The mock: component provides a powerful declarative testing mechanism which is similar to jMock in that it allows declarative expectations to be created on an endpoint up front, then a route used, then the expectations can be asserted in a test case to ensure the routing rules and processors worked as expected.
URI format
mock:someName
Where someName can be any string to uniquely identify the endpoint
Examples
Here's quick example of MockEndpoint in use, asserting the number of messages which are expected during a test run
MockEndpoint resultEndpoint = context.resolveEndpoint("mock:foo", MockEndpoint.class);
resultEndpoint.expectedMessageCount(2);
// send some messages
...
// now lets assert that the mock:foo endpoint received 2 messages
resultEndpoint.assertIsSatisfied();
You can see from the javadoc of MockEndpoint the various helper methods you can use. You can use other methods such as
- assertIsSatisfied() to test that the expectations were met
- expectedMessageCount(int) to define the expected message count on the endpoint
- expectedBodiesReceived(...) to define the expected bodies that should be received (in order)
- expectsAscending(Expression) to add an expectation that messages are received in order using the given expression as an ordering Expression
- expectsDescending(Expression) to add an expectation that messages are received in order using the given expression as an ordering Expression
- expectsNoDuplicates(Expression) to add an expectation that no duplicate messages are received; using an Expression to calculate a unique identifier for each message. This could be something like the JMSMessageID if using JMS, or some unique reference number within the message.
Here's another example
resultEndpoint.expectedBodiesReceived("firstMessageBody", "secondMessageBody", "thirdMessageBody");
Or you could add an expectation on the headers or content of a specific message. For example
resultEndpoint.message(0).header("foo").isEqualTo("bar");
There are some examples of the Mock endpoint in use in the camel-corecore processor tests.