JRuby 1.9 coverage library reports different results than ruby 1.9
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Key: JRUBY-6106
URL: https://jira.codehaus.org/browse/JRUBY-6106
Project: JRuby
Issue Type: Bug
Components: Ruby 1.9.2
Affects Versions: JRuby 1.6.4
Environment: Ubuntu 11.04, jruby 1.6.4 (ruby-1.9.2-p136) (2011-08-23
17ea768) (OpenJDK Client VM 1.6.0_22) [linux-i386-java], ruby 1.9.2p0
(2010-08-18 revision 29036) [i686-linux]
Reporter: Raymond
Assignee: Thomas E Enebo
Priority: Minor
Attachments: test_cov.rb
The coverage array returned from jruby and ruby differ. Ruby marks valid code
lines not covered as 0, whereas Jruby marks these same lines as nil, thus
making code coverage tools not being able to distinguish between valid
non-covered lines of code, and non-code lines. As you can see from the test
file attached, and the output, ruby marks one line with a 0, and jruby does
not. Jruby also misses the last two blank lines, but I don't see that as an
issue for getting proper code coverage tools working.
ruby1.9.2 -e "require 'coverage'; Coverage.start; require './test_cov.rb'; p
Coverage.result"
{"/home/ray/Perforce/ray_ray-desktop/Atria/test_cov.rb"=>[nil, nil, 1, 1, 1,
nil, nil, nil, nil, nil, 1, nil, 0, nil, nil, nil, 1, nil, nil, nil, nil, nil,
nil, nil, nil, nil, 1, 1, nil, nil]}
jruby --debug --1.9 -e "require 'coverage'; Coverage.start; require
'./test_cov.rb'; p Coverage.result"
{"/home/ray/Perforce/ray_ray-desktop/ThirdParty/jruby/jruby-1.6.4/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb"=>[nil,
nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil,
nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 1],
"/home/ray/Perforce/ray_ray-desktop/Atria/./test_cov.rb"=>[nil, nil, 1, 1, 1,
nil, nil, nil, nil, nil, 1, nil, nil, nil, nil, nil, 1, nil, nil, nil, nil,
nil, nil, nil, nil, nil, 1, 1], "-e"=>[2]}
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