org.springframework.cloud.stream.test.matcher

Class MessageQueueMatcher<T>

java.lang.Object

org.hamcrest.BaseMatcher<BlockingQueue<org.springframework.messaging.Message<?>>>

org.springframework.cloud.stream.test.matcher.MessageQueueMatcher<T>

All Implemented Interfaces:

org.hamcrest.Matcher<BlockingQueue<org.springframework.messaging.Message<?>>>, org.hamcrest.SelfDescribing

public class MessageQueueMatcher<T>
extends org.hamcrest.BaseMatcher<BlockingQueue<org.springframework.messaging.Message<?>>>

A Hamcrest Matcher meant to be used in conjunction with TestSupportBinder.

Expected usage is of the form (with appropriate static imports):

 public class TransformProcessorApplicationTests {

     @Autowired
     @Bindings(TransformProcessor.class)
    private Processor processor;

     @Autowired
    private MessageCollectorImpl messageCollector;


     @Test
    public void testUsingExpression() {
        processor.input().send(new GenericMessage <Object>("hello"));
        assertThat(messageCollector.forChannel(processor.output()), receivesPayloadThat(is("hellofoo")).within(10));
    }

 }
 

Author:

Eric Bottard, Janne Valkealahti

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MessageQueueMatcher.Extractor<R,T> A transformation to be applied to a received message before asserting, e.g. to only inspect the payload.

Constructor Summary

Constructors

Constructor and Description
MessageQueueMatcher(org.hamcrest.Matcher<T> delegate, long timeout, TimeUnit unit, MessageQueueMatcher.Extractor<org.springframework.messaging.Message<?>,T> extractor)

Method Summary

Modifier and Type	Method and Description
void	describeMismatch(Object item, org.hamcrest.Description description)
void	describeTo(org.hamcrest.Description description)
MessageQueueMatcher<T>	immediately()
MessageQueueMatcher<T>	indefinitely()
boolean	matches(Object item)
static <P> MessageQueueMatcher<P>	receivesMessageThat(org.hamcrest.Matcher<org.springframework.messaging.Message<P>> messageMatcher)
static <P> MessageQueueMatcher<P>	receivesPayloadThat(org.hamcrest.Matcher<P> payloadMatcher)
MessageQueueMatcher<T>	within(long timeout, TimeUnit unit)

Methods inherited from class org.hamcrest.BaseMatcher

_dont_implement_Matcher___instead_extend_BaseMatcher_, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MessageQueueMatcher

public MessageQueueMatcher(org.hamcrest.Matcher<T> delegate,
                           long timeout,
                           TimeUnit unit,
                           MessageQueueMatcher.Extractor<org.springframework.messaging.Message<?>,T> extractor)

Method Detail

receivesMessageThat

public static <P> MessageQueueMatcher<P> receivesMessageThat(org.hamcrest.Matcher<org.springframework.messaging.Message<P>> messageMatcher)

receivesPayloadThat

public static <P> MessageQueueMatcher<P> receivesPayloadThat(org.hamcrest.Matcher<P> payloadMatcher)

matches

public boolean matches(Object item)

describeMismatch

public void describeMismatch(Object item,
                             org.hamcrest.Description description)

Specified by:

describeMismatch in interface org.hamcrest.Matcher<BlockingQueue<org.springframework.messaging.Message<?>>>

Overrides:

describeMismatch in class org.hamcrest.BaseMatcher<BlockingQueue<org.springframework.messaging.Message<?>>>

within

public MessageQueueMatcher<T> within(long timeout,
                                     TimeUnit unit)

immediately

public MessageQueueMatcher<T> immediately()

indefinitely

public MessageQueueMatcher<T> indefinitely()

describeTo

public void describeTo(org.hamcrest.Description description)