require 'test_helper'
require 'zip/ioextras'

class AbstractOutputStreamTest < MiniTest::Test
  class TestOutputStream
    include ::Zip::IOExtras::AbstractOutputStream

    attr_accessor :buffer

    def initialize
      @buffer = ""
    end

    def << (data)
      @buffer << data
      self
    end
  end

  def setup
    @output_stream = TestOutputStream.new

    @origCommaSep = $,
    @origOutputSep = $\
  end

  def teardown
    $, = @origCommaSep
    $\ = @origOutputSep
  end

  def test_write
    count = @output_stream.write("a little string")
    assert_equal("a little string", @output_stream.buffer)
    assert_equal("a little string".length, count)

    count = @output_stream.write(". a little more")
    assert_equal("a little string. a little more", @output_stream.buffer)
    assert_equal(". a little more".length, count)
  end

  def test_print
    $\ = nil # record separator set to nil
    @output_stream.print("hello")
    assert_equal("hello", @output_stream.buffer)

    @output_stream.print(" world.")
    assert_equal("hello world.", @output_stream.buffer)

    @output_stream.print(" You ok ", "out ", "there?")
    assert_equal("hello world. You ok out there?", @output_stream.buffer)

    $\ = "\n"
    @output_stream.print
    assert_equal("hello world. You ok out there?\n", @output_stream.buffer)

    @output_stream.print("I sure hope so!")
    assert_equal("hello world. You ok out there?\nI sure hope so!\n", @output_stream.buffer)

    $, = "X"
    @output_stream.buffer = ""
    @output_stream.print("monkey", "duck", "zebra")
    assert_equal("monkeyXduckXzebra\n", @output_stream.buffer)

    $\ = nil
    @output_stream.buffer = ""
    @output_stream.print(20)
    assert_equal("20", @output_stream.buffer)
  end

  def test_printf
    @output_stream.printf("%d %04x", 123, 123)
    assert_equal("123 007b", @output_stream.buffer)
  end

  def test_putc
    @output_stream.putc("A")
    assert_equal("A", @output_stream.buffer)
    @output_stream.putc(65)
    assert_equal("AA", @output_stream.buffer)
  end

  def test_puts
    @output_stream.puts
    assert_equal("\n", @output_stream.buffer)

    @output_stream.puts("hello", "world")
    assert_equal("\nhello\nworld\n", @output_stream.buffer)

    @output_stream.buffer = ""
    @output_stream.puts("hello\n", "world\n")
    assert_equal("hello\nworld\n", @output_stream.buffer)

    @output_stream.buffer = ""
    @output_stream.puts(["hello\n", "world\n"])
    assert_equal("hello\nworld\n", @output_stream.buffer)

    @output_stream.buffer = ""
    @output_stream.puts(["hello\n", "world\n"], "bingo")
    assert_equal("hello\nworld\nbingo\n", @output_stream.buffer)

    @output_stream.buffer = ""
    @output_stream.puts(16, 20, 50, "hello")
    assert_equal("16\n20\n50\nhello\n", @output_stream.buffer)
  end
end