JRuby incorrectly calculates / and divmod against Rational number
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Key: JRUBY-1653
URL: http://jira.codehaus.org/browse/JRUBY-1653
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Environment: Jruby 1.1b1 (from latest trunk)
Reporter: Vladimir Sizikov
Priority: Critical
Attachments: float_rational_updated.rb
=== example.rb =====
require 'rational'
puts 1.0.divmod Rational(1, 5)"
puts 1.0 / Rational(1, 5)"
=================
In MRI:
4 0.2
5.0
In JRuby:
NaN (FloatDomainError)
Infinity
This leads to errors in activesupport test cases, and in some time/date
conversions where these two operations used frequently:
2) Error:
test_xmlschema(DateTimeExtCalculationsTest):
FloatDomainError: Infinity
/opt/work/jruby/lib/ruby/1.8/date/format.rb:600:in `scan'
/opt/work/jruby/lib/ruby/1.8/date/format.rb:495:in `strftime'
/opt/work/jruby/lib/ruby/1.8/date/format.rb:600:in `strftime'
/opt/work/jruby/lib/ruby/1.8/date/format.rb:547:in `strftime'
/opt/work/jruby/lib/ruby/1.8/date/format.rb:600:in `scan'
/opt/work/jruby/lib/ruby/1.8/date/format.rb:495:in `strftime'
/opt/work/jruby/lib/ruby/1.8/date/format.rb:600:in `strftime'
/opt/work/activesupport/./test/../lib/active_support/core_ext/date_time/conversions.rb:49:in
`xmlschema'
/opt/work/activesupport/./test/core_ext/date_time_ext_test.rb:206:in
`test_xmlschema'
The proposed patch fixes the problem and the activesupport test case failure
too.
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