Re: How to use Mockito for testing Async calls?

[objectuser]

 

Here's how I do it.
    @Test
    public void testAsync() {
        doAnswer(new Answer<Void>() { 

            @Override 
            public Void answer(InvocationOnMock invocation) throws Throwable 
{ 
                AsyncCallback<CommandResult> callback = 
(AsyncCallback<CommandResult>) invocation.getArguments()[1]; 
                callback.onSuccess(new CommandResult()); 
                return null; 
            } 
        }).when(commandProcessor).execute(any(Command.class), 
any(AsyncCallback.class)); 

        // invoke something that sends the command ... then verify the 
results
        verify(...)...; 
    }

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