Hash should raise a RuntimeError when rehashed during iteration
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Key: JRUBY-1211
URL: http://jira.codehaus.org/browse/JRUBY-1211
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.0.0
Reporter: Marcin Mielżyński
test case:
h = {1=>2}
h.each{h.rehash}
MRI:
`each': rehash occurred during iteration (RuntimeError)
h = {:foo=>:bar}
h.each{66.times{|i|h[i]=i}}
MRI:
`each': hash modified during iteration (RuntimeError)
66 is the threshold for MRI's first table reallocation
13 * 5 = 65 (prime * default density)
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