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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "StringIO#close_write" do
before :each do
@io = StringIO.new("example")
end
it "returns nil" do
@io.close_write.should be_nil
end
it "prevents further writing" do
@io.close_write
lambda { @io.write('x') }.should raise_error(IOError)
end
it "allows further reading" do
@io.close_write
@io.read(1).should == 'e'
end
it "raises an IOError when in read-only mode" do
io = StringIO.new("example", "r")
lambda { io.close_write }.should raise_error(IOError)
io = StringIO.new("example")
io.close_write
ruby_version_is ''...'2.3' do
lambda { io.close_write }.should raise_error(IOError)
end
ruby_version_is '2.3' do
io.close_write.should == nil
end
end
end
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