From: "Florian Aßmann" <florian.assmann@...>
Date: 2007-07-15T17:16:44+09:00
Subject: Re: Test::Unit

Helmut Hagemann schrieb:
> Hello Ruby fan
> That is first time which I into forum
> A question places a test environment for a program must provide
> Here is program now test the program
> 
> #!/usr/bin/env ruby
> 
> class MYAPPException < Exception
> end
> class MYAPPGood < Exception
> end
> 
> 
> class Test
>     def initialize( arg)
>         begin
>             $stdout.print "\nProgram 1 check Argument size from #{arg}"
>             check(arg)
> 
>         rescue MYAPPException =>str
>             $stdout.print "\nException output"
>             $stdout.flush
>             $stdout.print "\nError : #{arg} ",$!
> 
>             exit(-1)
>         else
> 
>             exit(0)
>         end
>     end
>     def check(str)
>         $stdout.print "\nin check Method #{str.to_s.size} #{str.class}"
>         if str.size<=5
>             $stdout.print "\ncheck to short"
>             raise MYAPPException,"Input to short"
>         end
>         if str.size >=10
>             $stdout.print "\ncheck to long"
>             raise MYAPPException,"Input to long"
>         end
>         $stdout.print "\nresult : ",str
>         $stdout.print "\ncheck okay"
>     end
> end
> if  __FILE__ == $0
>     t=Test.new(ARGV[0])
> end
> 
> 
> In the case I have to indicate specially an error to 4
> 
> #!/usr/bin/env ruby
> #require "program1.rb"
> 
> require "test/unit"
> 
> class Cmdline_Tests < Test::Unit::TestCase
> 
>     def test_Progam1
>     #No.1
>         a = %x[ruby Program1.rb 123]
>         assert_equal(255,$?.exitstatus )
>         assert_match(/Input to short$/,a)
>     #No.2
>         a = %x[ruby Program1.rb 1234567890]
>         assert_equal(255,$?.exitstatus )
>         assert_match(/Input to long$/,a)
>     #No.3
>         a = %x[ruby Program1.rb 1234567]
>         assert_equal(0,$?.exitstatus )
>         assert_match(/check okay$/,a)
>     #No.4
>         a = %x[ruby Program1.rb 1234567]
>         assert_equal(0,$?.exitstatus )
>         assert_match(/check okayy$/,a)
>     end
> end
> 
> inserted around my question clearly
> 
> 
> G:\edi>ruby TestProgram1.rb
> Loaded suite TestProgram1
> Started
> F
> Finished in 0.469 seconds.
> 
>   1) Failure:
> test_Progam1(Cmdline_Tests) [TestProgram1.rb:28]:
> <"\nProgram 1 check Argument size from 1234567\nin check Method 7
> String\nresult
>  : 1234567\ncheck okay"> expected to be =~
> </check okayy$/>.
> 
> 1 tests, 8 assertions, 1 failures, 0 errors
> 
> 
> 
> The question
> Why all stdout announcement stored.
> can I delete these announcements and only one message spend
> 

Hi Helmut,

I have several ways to accomplish this in mind:

1.
a.to_a.last # in testcase

2.
use popen and test the complete output, that would fit better in this
case, imho:

asserts = ['Integer']
IO.popen "ruby -e 'puts Integer.name; exit 0'" do |pipe|
  assert_equal(asserts.shift, pipe.readline.chomp) until asserts.empty?
end
assert($?.success?)

Regards
Florian