Unit test Apache Camel specific routes by filtering (Model#setRouteFilter) - apache-camel

Question

How to include only certain routes in my unit test. For example, how do I enable only my-translation-route.
public class TestRoute extends RouteBuilder {
#Override
public void configure() {
from("ftp://my-ftp-server:21/messages")
.routeId("my-inbound-route")
.to("direct:my-translation-route");
from("direct:my-translation-route")
.routeId("my-translation-route")
.bean(MyBean.class)
.to("direct:my-outbound-route");
from ("direct:my-outbound-route")
.routeId("my-translation-route")
.to("http://my-http-server:8080/messages");
}
}
I tried with Model#filterRoutes but this did not work. All routes were loaded.
class TestRouteTest extends CamelTestSupport {
#Override
protected RoutesBuilder createRouteBuilder() {
return new TestRoute();
}
#Override
public boolean isUseAdviceWith() {
return true;
}
#Test
void testIfItWorks() throws Exception {
context.setRouteFilterPattern("my-translation-route", null);
AdviceWith.adviceWith(context, "my-translation-route", a -> {
a.mockEndpointsAndSkip("direct:my-outbound-route");
});
context.start();
getMockEndpoint("mock:direct:my-outbound-route").expectedBodyReceived().expression(constant("Hahaha! 42"));
template.sendBodyAndHeaders("direct:my-translation-route", "42", null);
assertMockEndpointsSatisfied();
}
}
I got it working with the override of CamelTestSupport#getRouteFilterIncludePattern, e.g.:
#Override
public String getRouteFilterIncludePattern() {
return "direct:my-translation-route";
}
But then this is set for all tests in this test class.

Answer 1

Possible (stupid) solution : set a conditional auto startup for your routes, whose value depends on a (Camel or JVM) property that you can set with a particular value during the unit tests:
public class TestRoute extends RouteBuilder {
#PropertyInject(name="productionMode", defaultValue="true")
private boolean productionMode;
#Override
public void configure() {
from("ftp://my-ftp-server:21/messages")
...
.autoStartUp(productionMode); // <=here
}
}
There are various ways to override properties during your tests. See https://camel.apache.org/components/3.17.x/properties-component.html