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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "IO#close" do
before :each do
@name = tmp('io_close.txt')
@io = new_io @name
end
after :each do
@io.close unless @io.closed?
rm_r @name
end
it "closes the stream" do
@io.close
@io.closed?.should == true
end
it "returns nil" do
@io.close.should == nil
end
it "raises an IOError reading from a closed IO" do
@io.close
lambda { @io.read }.should raise_error(IOError)
end
it "raises an IOError writing to a closed IO" do
@io.close
lambda { @io.write "data" }.should raise_error(IOError)
end
ruby_version_is ''...'2.3' do
it "raises an IOError if closed" do
@io.close
lambda { @io.close }.should raise_error(IOError)
end
end
ruby_version_is "2.3" do
it "does nothing if already closed" do
@io.close
@io.close.should be_nil
end
end
end
describe "IO#close on an IO.popen stream" do
it "clears #pid" do
io = IO.popen ruby_cmd('r = loop{puts "y"; 0} rescue 1; exit r'), 'r'
io.pid.should_not == 0
io.close
lambda { io.pid }.should raise_error(IOError)
end
it "sets $?" do
io = IO.popen ruby_cmd('exit 0'), 'r'
io.close
$?.exitstatus.should == 0
io = IO.popen ruby_cmd('exit 1'), 'r'
io.close
$?.exitstatus.should == 1
end
it "waits for the child to exit" do
io = IO.popen ruby_cmd('r = loop{puts "y"; 0} rescue 1; exit r'), 'r'
io.close
$?.exitstatus.should_not == 0
end
end
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