[MacRuby] #961: MacRuby trunk doesn't show the correct file and line numbers in stacktraces involving blocks

19 Oct 2010

      #961: MacRuby trunk doesn't show the correct file and line numbers in stacktraces
involving blocks
--------------------------------+-------------------------------------------
 Reporter:  manfred@…           |       Owner:  lsansonetti@…        
     Type:  defect              |      Status:  new                  
 Priority:  major               |   Milestone:                       
Component:  MacRuby             |    Keywords:                       
--------------------------------+-------------------------------------------
 Running the following code in MacRuby:

 {{{
 require 'rubygems'
 require 'bacon'

 Bacon.extend Bacon::TestUnitOutput
 Bacon.summary_on_exit

 describe "Something" do
   it "fails" do
     raise 'foo'
   end
 end
 }}}

 shows the following stacktrace:

 {{{
 lsof% macruby t.rb
 E
 RuntimeError: foo
 /Library/Frameworks/MacRuby.framework/Versions/0.8/usr/lib/ruby/Gems/1.9.2/gems/bacon-1.1.0/lib/bacon.rb:in
 `handle_requirement:': Something - fails
         /Users/manfred/Code/t.rb:8:in `block'
         /Users/manfred/Code/t.rb:7:in `<main>'

 1 tests, 0 assertions, 0 failures, 1 errors
 }}}

 Ruby 1.9.2 shows line numbers and the fact that the code is run from a
 block in it's stacktrace, which is a lot more informative:

 {{{
 lsof% /opt/ruby-1.9.2/bin/ruby t.rb
 E
 RuntimeError: foo
         t.rb:9:in `block (2 levels) in <main>': Something - fails
         t.rb:8:in `block in <main>'
         t.rb:7:in `<main>'

 1 tests, 0 assertions, 0 failures, 1 errors
 }}}

 This means that you can only identify the top level block in which the
 error occurred, which is usually not enough because it's basically the
 complete testcase.

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/961>
MacRuby <http://macruby.org/>