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* transcode.c (str_encode): returns duplicated string if nothing

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changed.  [ruby-core:18578]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19349 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2008-09-14 17:37:35 +00:00
parent ca36233e55
commit 2f67b43aec
3 changed files with 17 additions and 1 deletions
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6
test/ruby/test_transcode.rb
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@ -582,4 +582,10 @@ class TestTranscode < Test::Unit::TestCase
assert_raise(Encoding::ConversionUndefined) { "\u203E".encode("CP51932") }
end
def test_nothing_changed
a = "James".force_encoding("US-ASCII")
b = a.encode("Shift_JIS")
assert_equal(Encoding::US_ASCII, a.encoding)
assert_equal(Encoding::Shift_JIS, b.encoding)
end
end