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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
69 lines
1.5 KiB
Ruby
69 lines
1.5 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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describe "IO#dup" do
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before :each do
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@file = tmp("rubinius_spec_io_dup_#{$$}_#{Time.now.to_f}")
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@f = File.open @file, 'w+'
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@i = @f.dup
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@f.sync = true
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@i.sync = true
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end
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after :each do
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@i.close if @i && !@i.closed?
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@f.close if @f && !@f.closed?
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rm_r @file
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end
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it "returns a new IO instance" do
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@i.class.should == @f.class
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end
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it "sets a new descriptor on the returned object" do
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@i.fileno.should_not == @f.fileno
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end
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quarantine! do # This does not appear to be consistent across platforms
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it "shares the original stream between the two IOs" do
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start = @f.pos
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@i.pos.should == start
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s = "Hello, wo.. wait, where am I?\n"
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s2 = "<evil voice> Muhahahaa!"
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@f.write s
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@i.pos.should == @f.pos
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@i.rewind
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@i.gets.should == s
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@i.rewind
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@i.write s2
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@f.rewind
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@f.gets.should == "#{s2}\n"
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end
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end
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it "allows closing the new IO without affecting the original" do
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@i.close
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lambda { @f.gets }.should_not raise_error(Exception)
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@i.closed?.should == true
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@f.closed?.should == false
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end
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it "allows closing the original IO without affecting the new one" do
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@f.close
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lambda { @i.gets }.should_not raise_error(Exception)
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@i.closed?.should == false
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@f.closed?.should == true
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end
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it "raises IOError on closed stream" do
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lambda { IOSpecs.closed_io.dup }.should raise_error(IOError)
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end
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end
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