From: Richard <RichardDummyMailbox58407@...>
Date: 2006-12-03T11:35:08+09:00
Subject: Why does a test fail when I predicted it's exception class?

Hi,

I have a test suite that invokes on test set that specifies

assert_raise(ZeroDivisionError, MyCalc.new.calc)

When I run the test suite, instead of "1 test, 0 failures, 0 errors",
I get the following. The code follows this output.

What's up?
Richard

K:\_Projects\Ruby\TestUnitTesting\BasicTest>ruby MyCalcTest.rb
.\BasicCalc.rb:5:in `/': divided by 0 (ZeroDivisionError)
        from .\BasicCalc.rb:5:in `calc'
        from .\BasicCalc.rb:9
        from
K:/_Utilities/Ruby_1.8.2-15/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
        from
K:/_Utilities/Ruby_1.8.2-15/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
        from ./tc_TestSet.rb:1
        from
K:/_Utilities/Ruby_1.8.2-15/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
        from
K:/_Utilities/Ruby_1.8.2-15/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
        from MyCalcTest.rb:4

BasicCalc.rb
=========
# BasicCalc.rb

class MyCalc
	def calc
		2/0
	end
end

tc_TestSet.rb
==========
require '.\BasicCalc.rb'

class Test1 < Test::Unit::TestCase # The long-winded way
	def test_excep
		assert_raise(ZeroDivisionError, MyCalc.new.calc)
	end
end

MyCalcTest.rb
==========
 # Reverse-Polish Evaluation Test
 
require 'test/unit'
require 'tc_TestSet'