Junit for try catch

Question

I am trying to add a unit test case which involves this code:

try(InputStream zippedInputStream = attachmentReader.getPayloadStream(dP)){
  <some code>
 } catch(Exception t) {
            Throwables.propagate(t);
 }

Please help me in writing a mockito for this.

Maybe meet your issue [https://stackoverflow.com/questions/31423643/try-catch-in-a-junit-test](https://stackoverflow.com/questions/31423643/try-catch-in-a-junit-test) — ThanhTranIT, Jul 21 '17 at 07:27

score 0 · Answer 1 · answered Jul 21 '17 at 07:29

Your production code does:

fetch a stream from a reader
throw a runtime exception

So for your test, you will need

a mocked attachmentReader thing (which gets passed to your production code)
that mock is configured to return an InputStream
and in turn, that stream is configured so that the production code does certain things

From there: you write at least two tests, one for the good path; and one where you configure your stream to throw - so that you can put up @Test(expected=RuntimeException.class) .

Junit for try catch

1 Answers1