Testing Camel routes with MockEndpoint

Question

Why does this test fails with "java.lang.AssertionError: mock://destino Received message count. Expected: <12> but was: <0>" ? I'm just trying to test if Camel can really reorder messages.

Imports:

import java.util.ArrayList;
import java.util.List;

import org.apache.camel.CamelContext;
import org.apache.camel.Produce;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.guice.CamelModuleWithRouteTypes;
import org.jukito.JukitoModule;
import org.jukito.JukitoRunner;
import org.junit.Test;
import org.junit.runner.RunWith;

import com.google.inject.Inject;

The test:

@RunWith(JukitoRunner.class) public class ResequenceTest {

    @Inject protected CamelContext context;
    @Produce protected ProducerTemplate template;

    public static class Module extends JukitoModule {
        @SuppressWarnings("unchecked") protected void configureTest() {
            install(new CamelModuleWithRouteTypes(OrderingTestRouteBuilder.class));
        }
    }

    @Test public void testDozenMsgsOrderByIntegerBody() throws Exception {
        // fail();
            Integer[] input = new Integer[] {12, 11, 10, 9, 8, 7, 6, 5, 1, 2, 3, 4};
            List<Integer> expectedOutput = new ArrayList<Integer>();
        for (int i=1; i<=12; i++) {expectedOutput.add(i);};
        for (Integer i : input) {template.sendBody("mock:receptor", i);};
        MockEndpoint resultEndpoint = context.getEndpoint("mock:destino", MockEndpoint.class);
        resultEndpoint.expectedBodiesReceived(expectedOutput);
        resultEndpoint.assertIsSatisfied();
    }

}

The route:

class OrderingTestRouteBuilder extends RouteBuilder {
        @Override public void configure() throws Exception {
        from("direct:start")
            .to("mock:receptor")
            .resequence(body(Integer.class))
            .to("mock:destino");
    }
}

Thanks, Rodolfo

score 5 · Answer 1 · answered Dec 19 '11 at 12:20

5

You should setup the expectations on the mock before you send messages into Camel. The steps is

setup expectations on the mocks
send messages
assert

answered Dec 19 '11 at 12:20

Claus Ibsen

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Yes, I realized it this morning. Thanks, Claus. – Rodolfo Dec 19 '11 at 12:53

score 1 · Answer 2 · answered Dec 19 '11 at 12:52

It's passing now. I changed test to:

@Test public void testDozenMsgsOrderByIntegerBody() throws Exception {
    // fail();
    List<Integer> input = Arrays.asList(new Integer[] {12, 11, 10, 9, 8, 7, 6, 5, 1, 2, 3, 4});
    List<Integer> expectedOutput = new ArrayList<Integer>();
    for (int i=1; i<=12; i++) {expectedOutput.add(i);};
    MockEndpoint resultEndpoint = context.getEndpoint("mock:result", MockEndpoint.class);
    resultEndpoint.expectedBodiesReceived(expectedOutput);
    for (Integer i : input) {template.sendBody("direct:start", i);};
    resultEndpoint.assertIsSatisfied();
}

and the route to:

class OrderingTestRouteBuilder extends RouteBuilder {
@Override
public void configure() throws Exception {
    from("direct:start")
       .resequence(body(Integer.class))
       .to("mock:result");
    }
}

Testing Camel routes with MockEndpoint

2 Answers2

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