Rubyspec failure for Enumerator#next
------------------------------------
Key: JRUBY-4010
URL: http://jira.codehaus.org/browse/JRUBY-4010
Project: JRuby
Issue Type: Bug
Components: RubySpec
Affects Versions: JRuby 1.3.1
Environment: jruby 1.4.0dev (ruby 1.8.7 patchlevel 174) (2009-09-27
704b415) (Java HotSpot(TM) Client VM 1.6.0_03) [i386-java]
Reporter: Vladimir Sizikov
Due to changes in rubyspec test, we now have one more JRuby failure:
{noformat}
#>mspec/bin/mspec -t j ruby/library/enumerator/next_spec.rb
jruby 1.4.0dev (ruby 1.8.7 patchlevel 174) (2009-09-27 704b415) (Java
HotSpot(TM) Client VM 1.6.0_03) [i386-java]
..F
1)
Enumerator#next cannot be called again until the enumerator is rewound FAILED
Expected StopIteration but no exception was raised
/opt/work/jruby.git/spec/ruby/shared/enumerator/next.rb:23
/opt/work/jruby.git/spec/ruby/library/enumerator/next_spec.rb:7
/opt/work/jruby.git/spec/ruby/library/enumerator/next_spec.rb:3
/opt/work/jruby.git/spec/ruby/library/enumerator/next_spec.rb:55:in `load'
Finished in 0.092000 seconds
1 file, 3 examples, 6 expectations, 1 failure, 0 errors
{noformat}
The strange thing is that MRI 1.8.7 also fails this very same test. But MRI
1.9 doesn't. The change was introduced in rubyspecs in
07c8e9cf11a7fe356dbc54275a353bb89753b2fb:
{noformat}
- it "rewinds the enumerator after raising StopIteration" do
+ it "cannot be called again until the enumerator is rewound" do
3.times { @enum.next }
lambda { @enum.next }.should raise_error(StopIteration)
+ lambda { @enum.next }.should raise_error(StopIteration)
+ lambda { @enum.next }.should raise_error(StopIteration)
+ @enum.rewind
@enum.next.should == 1
end
end
{noformat}
This change directly contradicts the ruby-doc:
When the position reached at the end, internal position is rewinded then
StopIteration is raised.
Need to clarify with rubyspec/mri folks.
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