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Description: Rubinius, the Ruby VM
Homepage: http://rubini.us
Clone URL: git://github.com/evanphx/rubinius.git 
IO#write returns 0 when writing a blank string, to match behavior of MRI

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>
adamwiggins (author)
Sat Apr 26 22:57:09 -0700 2008
dbussink (committer)
Sun Apr 27 02:48:23 -0700 2008
commit  4a1f39426fc60ae7c2ed0470259fa0752a46d030
tree    a984cd937787d1d59432848e34becef4bd27be8e
parent  56c0088f9b075769933c8c87e3c2d256cff3a3e8
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kernel/core/io.rb 
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@@ -497,7 +497,7 @@ class IO
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     data = String data
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-    return if data.length == 0
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+    return 0 if data.length == 0
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     raise IOError if ((Platform::POSIX.fcntl(@descriptor, F_GETFL, 0) & ACCMODE) == RDONLY)
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     prim_write(data)
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   end
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spec/ruby/1.8/core/io/write_spec.rb 
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@@ -33,5 +33,9 @@ describe "IO#write on a file" do
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     lambda { @readonly_file.write("") }.should_not raise_error
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   end
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+  it "returns a length of 0 when writing a blank string" do
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+    @file.write('').should == 0
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+  end
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   it_behaves_like(:io_write, :write)
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 end

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