require File.expand_path('../../../spec_helper', __FILE__)

describe "ARGF.close" do
  before :each do
    @file1_name = fixture __FILE__, "file1.txt"
    @file2_name = fixture __FILE__, "file2.txt"
  end

  after :each do
    ARGF.close unless ARGF.closed?
  end

  it "closes the current open stream" do
    argv [@file1_name, @file2_name] do
      io = ARGF.to_io
      ARGF.close
      io.closed?.should be_true
    end
  end

  it "returns self" do
    argv [@file1_name, @file2_name] do
      ARGF.close.should equal(ARGF)
    end
  end

  # This passes on 1.9 and 1.8 HEAD, but fails on 1.8.7 and 1.8.6
  ruby_bug "#1633", "1.8.7.174" do
    it "raises an IOError if called on a closed stream" do
      argv [@file1_name] do
        lambda { ARGF.close }.should_not raise_error
        lambda { ARGF.close }.should raise_error(IOError)
      end
    end
  end

  # This passes on 1.8.6 and 1.8.7 but fails on 1.9. matz confirmed that it
  # should pass in the referenced bug report.
  #
  # This is quarantined because closing STDIN easily destabilizes specs that
  # run after this. If this is to be spec'd, it must be done in a subprocess
  # or in some kind of isolation.
  quarantine! do
    it "can close STDIN" do
      argv ['-'] do
        ARGV.size.should == 1
        ARGF.close.should == ARGF
        ARGF.closed?.should be_true
      end
    end
  end
end