From: Masaki Suketa <masaki.suketa@...>
Date: 2001-03-17T19:42:54+09:00
Subject: [ruby-talk:12765] Re: assert_exception question

In message "[ruby-talk:12754] assert_exception question"
    on 01/03/17, Pat Eyler <pate@gnu.org> writes:

>    assert_exception(exception, message="") {block}
> 
> Which I take to mean that I'm asserting that executing the {block} of code
> will result in an exception of type 'exception' and a message with no
> content.   This doesn't seem to be right though.  What am I missing?

assert_exception does not check message of exception.

  assert_exception(StandardError, "message string") {
    str = "No Exception"
  }
  
The result is:

  Failures: 1
  ...(TestClass): message string expected:<StandardError> 
                  ^^^^^^^^^^^^^^
  but was:<NO EXCEPTION RAISED> (RUNIT::AssertionFailedError)
      from t.rb:23

If you want to check message of exception, check return value
of assert_exception.

  e = assert_exception(StandardError) {
        raise StandardError, "exception message"
      }
  assert_equal("exception message", e.message)

Hope this helps.

  Masaki Suketa