[1.9] IO#copy_stream unable to take a File object
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Key: JRUBY-4420
URL: http://jira.codehaus.org/browse/JRUBY-4420
Project: JRuby
Issue Type: Bug
Components: Ruby 1.9
Affects Versions: JRuby 1.5
Environment: JVM 1.5 on Leopard PPC, JVM 1.6 on WinXP
Reporter: Ian Dees
Assignee: Thomas E Enebo
Priority: Minor
Fix For: JRuby 1.5
The docs for {{IO#copy_stream}} state that the source and destination can
either be filenames or {{IO}} instances. And indeed, YARV seems to support both
types. But JRuby's version of the method currently does not accept {{IO}}
objects (or {{File}} objects, which are instances of {{IO}}).
The following test case (which assumes the {{setup}}/{{teardown}}/helpers from
{{test_io.rb}}) demonstrates the problem. It passes on YARV but fails with
{{jruby --1.9}}.
{noformat}
def test_copy_stream_with_string_and_io
ensure_files @file
File.open(@file2, 'w') do |f2|
IO.copy_stream @file, f2
end
assert_equal IO.read(@file), IO.read(@file2)
end
{noformat}
On JRuby, this throws {{TypeError: Should be String or IO}}. The error
persists whether you use a {{File}} or a base {{IO}}.
This behavior affects {{FileUtils#install}} and therefore RubyGems.
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