Looking for Code example to create akka.http.javadsl.testkitTestResponse

[john....@gmail.com]

I am extending 

akka.http.javadsl.testkit.RouteTest.

In one of the methods I need to return a TestResponse.

 How can I do this with java 
public TestResponse createTestResponse(HttpResponse response) {

   return new TestResponse(response,null,null,null);
}

does not work?

[john....@gmail.com]

ok I found out:

return new TestResponse(response,null,null,null){
      public  scala.runtime.Nothing$ fail( String message) { return null;}

      public void assertEquals(int expected, int actual, String message) { }


      public void assertEquals(Object expected, Object actual, String message) { }

      @Override
      public void assertTrue(boolean predicate, String message) {}
   };
}

The "scala.runtime.Nothing$" return type on fail was not obvious to me.

[Akka Team]

Yes, that is a little unfortunate: the Scala type system allows the expression of non-termination (the bottom type—Nothing) which Java does not know about, so this it what happens “under the hood” (i.e. in the sausage factory).

We might want to change the return type of `fail` from Nothing to Unit, what do you think, Johannes?

Regards,

Roland

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[Viktor Klang]

java.lang.Void?

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[Johannes Rudolph]

Yes, good point.

https://github.com/akka/akka/pull/18201

On the other hand, I wonder why you need to implement TestResponse, john? You should only ever need to implement it if you want to support another kind of testing framework. Is that what you are trying to achieve? To write tests with JUnit just derive your test class from JUnitRouteTest.

Have you seen http://doc.akka.io/docs/akka-stream-and-http-experimental/1.0/java/http/routing-dsl/testkit.html?

Johannes

[john....@gmail.com]

Hi Johannes,

I think I am doing the right thing (at least I hope (-: )

Here is my testing setup:

1) My test class needs to extend "SpringJUnit4ClassRunner" (which mocks a spring-mvn rest server)

2) the called  spring controller needs to integrate with a akka-http service  And here fore  I have programmed a injected  class which extends RoutTest which  actually calls the akkaservice.

So I think have exactly the test scenario which you I have foreseen with RoutTest.

And it works like a charm! I do not need to configure any ports and can test a full servlet-container-akka-http-akka-backend flow.....

[Johannes Rudolph]

Hi john,

glad it works for you. Though, I have to say I don't think I
understand your use case completely, but maybe that's because of too
much spring in it :)

Johannes

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