require 'test_helper'

class ZipExtraFieldTest < MiniTest::Test
  def test_new
    extra_pure = ::Zip::ExtraField.new("")
    extra_withstr = ::Zip::ExtraField.new("foo")
    assert_instance_of(::Zip::ExtraField, extra_pure)
    assert_instance_of(::Zip::ExtraField, extra_withstr)
  end

  def test_unknownfield
    extra = ::Zip::ExtraField.new("foo")
    assert_equal(extra["Unknown"], "foo")
    extra.merge("a")
    assert_equal(extra["Unknown"], "fooa")
    extra.merge("barbaz")
    assert_equal(extra.to_s, "fooabarbaz")
  end

  def test_ntfs
    str = "\x0A\x00 \x00\x00\x00\x00\x00\x01\x00\x18\x00\xC0\x81\x17\xE8B\xCE\xCF\x01\xC0\x81\x17\xE8B\xCE\xCF\x01\xC0\x81\x17\xE8B\xCE\xCF\x01"
    extra = ::Zip::ExtraField.new(str)
    assert(extra.member?("NTFS"))
    t = ::Zip::DOSTime.at(1410496497.405178)
    assert_equal(t, extra['NTFS'].mtime)
    assert_equal(t, extra['NTFS'].atime)
    assert_equal(t, extra['NTFS'].ctime)
  end

  def test_merge
    str = "UT\x5\0\x3\250$\r@Ux\0\0"
    extra1 = ::Zip::ExtraField.new("")
    extra2 = ::Zip::ExtraField.new(str)
    assert(!extra1.member?("UniversalTime"))
    assert(extra2.member?("UniversalTime"))
    extra1.merge(str)
    assert_equal(extra1["UniversalTime"].mtime, extra2["UniversalTime"].mtime)
  end

  def test_length
    str = "UT\x5\0\x3\250$\r@Ux\0\0Te\0\0testit"
    extra = ::Zip::ExtraField.new(str)
    assert_equal(extra.local_size, extra.to_local_bin.size)
    assert_equal(extra.c_dir_size, extra.to_c_dir_bin.size)
    extra.merge("foo")
    assert_equal(extra.local_size, extra.to_local_bin.size)
    assert_equal(extra.c_dir_size, extra.to_c_dir_bin.size)
  end


  def test_to_s
    str = "UT\x5\0\x3\250$\r@Ux\0\0Te\0\0testit"
    extra = ::Zip::ExtraField.new(str)
    assert_instance_of(String, extra.to_s)

    s = extra.to_s
    extra.merge("foo")
    assert_equal(s.length + 3, extra.to_s.length)
  end

  def test_equality
    str = "UT\x5\0\x3\250$\r@"
    extra1 = ::Zip::ExtraField.new(str)
    extra2 = ::Zip::ExtraField.new(str)
    extra3 = ::Zip::ExtraField.new(str)
    assert_equal(extra1, extra2)

    extra2["UniversalTime"].mtime = ::Zip::DOSTime.now
    assert(extra1 != extra2)

    extra3.create("IUnix")
    assert(extra1 != extra3)

    extra1.create("IUnix")
    assert_equal(extra1, extra3)
  end

end