[jira] [Resolved] (FLINK-21324) statefun-testutil can't assert messages function sends to itself

["Seth Wiesman (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-21324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Seth Wiesman resolved FLINK-21324.
----------------------------------
    Resolution: Fixed

> statefun-testutil can't assert messages function sends to itself
> ----------------------------------------------------------------
>
>                 Key: FLINK-21324
>                 URL: https://issues.apache.org/jira/browse/FLINK-21324
>             Project: Flink
>          Issue Type: Bug
>          Components: Stateful Functions
>    Affects Versions: statefun-2.2.2
>            Reporter: Timur
>            Assignee: Timur
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: statefun-3.0.0
>
>
> Assertions don't work for messages sent by functions to themselves. The reason is that TestContext doesn't add a message to responses: 
> {code:java}
> @Override
> public void send(Address to, Object message) {
>   if (to.equals(selfAddress)) {
>     messages.add(new Envelope(self(), to, message));
>     return;
>   }
>   responses.computeIfAbsent(to, ignore -> new ArrayList<>()).add(message);
> }
> {code}
> Instead of adding the message to responses the method returns right after message added to messages. 
> Here is the example of the assertion that doesn't work in case a function sent a message to itself:
> {code:java}
> assertThat(harness.invoke(aliceDiseaseDiagnosedEvent()), sentNothing());
> {code}
> The test won't fail even though the message was really sent.



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