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begin
  require 'io/console'
  require 'test/unit'
  require 'pty'
rescue LoadError
end

class TestIO_Console < Test::Unit::TestCase
  Bug6116 = '[ruby-dev:45309]'

  def test_raw
    helper {|m, s|
      s.print "abc\n"
      assert_equal("abc\r\n", m.gets)
      assert_send([s, :echo?])
      s.raw {
        assert_not_send([s, :echo?], Bug6116)
        s.print "def\n"
        assert_equal("def\n", m.gets)
      }
      assert_send([s, :echo?])
      s.print "ghi\n"
      assert_equal("ghi\r\n", m.gets)
    }
  end

  def test_raw_minchar
    helper {|m, s|
      len = 0
      assert_equal([nil, 0], [s.getch(min: 0), len])
      main = Thread.current
      go = false
      th = Thread.start {
        len += 1
        m.print("a")
        m.flush
        sleep 0.01 until go and main.stop?
        len += 10
        m.print("1234567890")
        m.flush
      }
      begin
        assert_equal(["a", 1], [s.getch(min: 1), len])
        go = true
        assert_equal(["1", 11], [s.getch, len])
      ensure
        th.join
      end
    }
  end

  def test_raw_timeout
    helper {|m, s|
      len = 0
      assert_equal([nil, 0], [s.getch(min: 0, time: 0.1), len])
      main = Thread.current
      th = Thread.start {
        sleep 0.01 until main.stop?
        len += 2
        m.print("ab")
      }
      begin
        assert_equal(["a", 2], [s.getch(min: 1, time: 1), len])
        assert_equal(["b", 2], [s.getch(time: 1), len])
      ensure
        th.join
      end
    }
  end

  def test_cooked
    helper {|m, s|
      assert_send([s, :echo?])
      s.raw {
        s.print "abc\n"
        assert_equal("abc\n", m.gets)
        assert_not_send([s, :echo?], Bug6116)
        s.cooked {
          assert_send([s, :echo?])
          s.print "def\n"
          assert_equal("def\r\n", m.gets)
        }
        assert_not_send([s, :echo?], Bug6116)
      }
      assert_send([s, :echo?])
      s.print "ghi\n"
      assert_equal("ghi\r\n", m.gets)
    }
  end

  def test_echo
    helper {|m, s|
      assert_send([s, :echo?])
      m.print "a"
      assert_equal("a", m.readpartial(10))
    }
  end

  def test_noecho
    helper {|m, s|
      s.noecho {
        assert_not_send([s, :echo?])
        m.print "a"
        sleep 0.1
      }
      m.print "b"
      assert_equal("b", m.readpartial(10))
    }
  end

  def test_noecho2
    helper {|m, s|
      assert_send([s, :echo?])
      m.print "a\n"
      sleep 0.1
      s.print "b\n"
      sleep 0.1
      assert_equal("a\r\nb\r\n", m.readpartial(10))
      assert_equal("a\n", s.readpartial(10))
      s.noecho {
        assert_not_send([s, :echo?])
        m.print "a\n"
        s.print "b\n"
        assert_equal("b\r\n", m.readpartial(10))
        assert_equal("a\n", s.readpartial(10))
      }
      assert_send([s, :echo?])
      m.print "a\n"
      sleep 0.1
      s.print "b\n"
      sleep 0.1
      assert_equal("a\r\nb\r\n", m.readpartial(10))
      assert_equal("a\n", s.readpartial(10))
    }
  end

  def test_setecho
    helper {|m, s|
      assert_send([s, :echo?])
      s.echo = false
      m.print "a"
      sleep 0.1
      s.echo = true
      m.print "b"
      assert_equal("b", m.readpartial(10))
    }
  end

  def test_setecho2
    helper {|m, s|
      assert_send([s, :echo?])
      m.print "a\n"
      sleep 0.1
      s.print "b\n"
      sleep 0.1
      assert_equal("a\r\nb\r\n", m.readpartial(10))
      assert_equal("a\n", s.readpartial(10))
      s.echo = false
      assert_not_send([s, :echo?])
      m.print "a\n"
      s.print "b\n"
      assert_equal("b\r\n", m.readpartial(10))
      assert_equal("a\n", s.readpartial(10))
      s.echo = true
      assert_send([s, :echo?])
      m.print "a\n"
      sleep 0.1
      s.print "b\n"
      sleep 0.1
      assert_equal("a\r\nb\r\n", m.readpartial(10))
      assert_equal("a\n", s.readpartial(10))
    }
  end

  def test_iflush
    helper {|m, s|
      m.print "a"
      s.iflush
      m.print "b\n"
      assert_equal("b\n", s.readpartial(10))
    }
  end

  def test_oflush
    helper {|m, s|
      s.print "a"
      s.oflush # oflush may be issued after "a" is already sent.
      s.print "b"
      assert_include(["b", "ab"], m.readpartial(10))
    }
  end

  def test_ioflush
    helper {|m, s|
      m.print "a"
      s.ioflush
      m.print "b\n"
      assert_equal("b\n", s.readpartial(10))
    }
  end

  def test_ioflush2
    helper {|m, s|
      s.print "a"
      s.ioflush # ioflush may be issued after "a" is already sent.
      s.print "b"
      assert_include(["b", "ab"], m.readpartial(10))
    }
  end

  def test_winsize
    helper {|m, s|
      begin
        assert_equal([0, 0], s.winsize)
      rescue Errno::EINVAL # OpenSolaris 2009.06 TIOCGWINSZ causes Errno::EINVAL before TIOCSWINSZ.
      end
    }
  end

  if IO.console
    def test_close
      IO.console.close
      assert_kind_of(IO, IO.console)
      assert_nothing_raised(IOError) {IO.console.fileno}

      IO.console(:close)
      assert(IO.console(:tty?))
    ensure
      IO.console(:close)
    end

    def test_sync
      assert(IO.console.sync, "console should be unbuffered")
    ensure
      IO.console(:close)
    end
  else
    def test_close
      assert_equal(["true"], run_pty("IO.console.close; p IO.console.fileno >= 0"))
      assert_equal(["true"], run_pty("IO.console(:close); p IO.console(:tty?)"))
    end

    def test_sync
      assert_equal(["true"], run_pty("p IO.console.sync"))
    end
  end

  private
  def helper
    m, s = PTY.open
  rescue RuntimeError
    skip $!
  else
    yield m, s
  ensure
    m.close if m
    s.close if s
  end

  def run_pty(src, n = 1)
    r, w, pid = PTY.spawn(EnvUtil.rubybin, "-rio/console", "-e", src)
  rescue RuntimeError
    skip $!
  else
    result = []
    n.times {result << r.gets.chomp}
    Process.wait(pid)
    if block_given?
      yield result
    else
      result
    end
  ensure
    r.close if r
    w.close if w
  end
end if defined?(PTY) and defined?(IO::console)

class TestIO_Console < Test::Unit::TestCase
  case
  when Process.respond_to?(:daemon)
    noctty = [EnvUtil.rubybin, "-e", "Process.daemon(true)"]
  when !(rubyw = RbConfig::CONFIG["RUBYW_INSTALL_NAME"]).empty?
    dir, base = File.split(EnvUtil.rubybin)
    noctty = [File.join(dir, base.sub(/ruby/, rubyw))]
  end

  if noctty
    require 'tempfile'
    NOCTTY = noctty
    def test_noctty
      t = Tempfile.new("console")
      t.close
      t2 = Tempfile.new("console")
      t2.close
      cmd = [*NOCTTY[1..-1],
        '-e', 'open(ARGV[0], "w") {|f|',
        '-e',   'STDOUT.reopen(f)',
        '-e',   'STDERR.reopen(f)',
        '-e',   'require "io/console"',
        '-e',   'f.puts IO.console.inspect',
        '-e',   'f.flush',
        '-e',   'File.unlink(ARGV[1])',
        '-e', '}',
        '--', t.path, t2.path]
      assert_ruby_status(cmd, rubybin: NOCTTY[0])
      30.times do
        break unless File.exist?(t2.path)
        sleep 0.1
      end
      t.open
      assert_equal("nil", t.gets(nil).chomp)
    ensure
      t.close! if t and !t.closed?
      t2.close!
    end
  end
end if defined?(IO.console)

class TestIO_Console < Test::Unit::TestCase
  def test_stringio_getch
    assert_separately %w"--disable=gems -rstringio -rio/console", %q{
      assert_operator(StringIO, :method_defined?, :getch)
    }
    assert_separately %w"--disable=gems -rio/console -rstringio", %q{
      assert_operator(StringIO, :method_defined?, :getch)
    }
    assert_separately %w"--disable=gems -rstringio", %q{
      assert_not_operator(StringIO, :method_defined?, :getch)
    }
  end
end