Hello,
this should work for you :
(binding [*out* (java.io.StringWriter.)]
(printing-fn)
(= (.toString *out*) "YES"))
Regards,
--
Laurent
2009/2/4 samppi <[email protected]>
>
> I want to test if a certain function prints a certain message to the
> system's standard output. How may I go about doing this?
>
> (defn printing-fn []
> (print "YES"))
>
> (deftest test-printing-fn
> (some-context-that-switches-the-default-target-of-printing
> (printing-fn)
> (is (= the-standard-output "YES"))))
>
>
> >
>
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