Bignum#div should never return non-integer values, even if arg is Float
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Key: JRUBY-2536
URL: http://jira.codehaus.org/browse/JRUBY-2536
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.1.1
Environment: Latest JRuby 1.1.1+ from trunk.
Reporter: Vladimir Sizikov
According to ruby-core folks (akr), MRI 1.8.6 has a bug, so that Bignum#div
returns non-integer values if the arg is Float.
The bug has been fixed in newer versions (1.8.7, 1.9), and the rubyspec has
been updated to enforce proper behavior.
Since, JRuby followed the 1.8.6 behavior, it now fails the spec too.:
{noformat}
mspec -t j 1.8/core/bignum/div_spec.rb
....F
1)
Bignum#div returns self divided by float FAILED
Expected 2147483648.5
to equal 2147483648
/opt/work/mspec.git/lib/mspec/expectations/expectations.rb:10:in `fail_with'
/opt/work/mspec.git/lib/mspec/matchers/base.rb:9:in `=='
/opt/work/spec/ruby/./1.8/core/bignum/div_spec.rb:9:in
`/opt/work/spec/ruby/./1.8/core/bignum/div_spec.rb'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:120:in `instance_eval'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:120:in `protect'
/opt/work/mspec.git/lib/mspec/runner/state.rb:46:in `each'
/opt/work/mspec.git/lib/mspec/runner/state.rb:46:in `protect'
/opt/work/mspec.git/lib/mspec/runner/state.rb:60:in `process'
/opt/work/mspec.git/lib/mspec/runner/state.rb:56:in `each'
/opt/work/mspec.git/lib/mspec/runner/state.rb:56:in `process'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:27:in `describe'
/opt/work/mspec.git/lib/mspec/runner/object.rb:11:in `describe'
/opt/work/spec/ruby/./1.8/core/bignum/div_spec.rb:4:in
`/opt/work/spec/ruby/./1.8/core/bignum/div_spec.rb'
/opt/work/spec/ruby/./1.8/core/bignum/div_spec.rb:45:in `load'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:45:in `files'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:120:in `instance_eval'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:120:in `protect'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:45:in `files'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:42:in `each'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:42:in `files'
/opt/work/mspec.git/lib/mspec/runner/mspec.rb:34:in `process'
/opt/work/mspec.git/bin/mspec-run:76:in `run'
/opt/work/mspec.git/lib/mspec/utils/script.rb:75:in `main'
/opt/work/mspec.git/bin/mspec-run:83
{noformat}
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