# Redmine - project management software
# Copyright (C) 2006-2013  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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

class Redmine::CodesetUtilTest < ActiveSupport::TestCase

  def test_to_utf8_by_setting_from_latin1
    with_settings :repositories_encodings => 'UTF-8,ISO-8859-1' do
      s1 = "Texte encod\xc3\xa9"
      s2 = "Texte encod\xe9"
      s3 = s2.dup
      if s1.respond_to?(:force_encoding)
        s1.force_encoding("UTF-8")
        s2.force_encoding("ASCII-8BIT")
        s3.force_encoding("UTF-8")
      end
      assert_equal s1, Redmine::CodesetUtil.to_utf8_by_setting(s2)
      assert_equal s1, Redmine::CodesetUtil.to_utf8_by_setting(s3)
    end
  end

  def test_to_utf8_by_setting_from_euc_jp
    with_settings :repositories_encodings => 'UTF-8,EUC-JP' do
      s1 = "\xe3\x83\xac\xe3\x83\x83\xe3\x83\x89\xe3\x83\x9e\xe3\x82\xa4\xe3\x83\xb3"
      s2 = "\xa5\xec\xa5\xc3\xa5\xc9\xa5\xde\xa5\xa4\xa5\xf3"
      s3 = s2.dup
      if s1.respond_to?(:force_encoding)
        s1.force_encoding("UTF-8")
        s2.force_encoding("ASCII-8BIT")
        s3.force_encoding("UTF-8")
      end
      assert_equal s1, Redmine::CodesetUtil.to_utf8_by_setting(s2)
      assert_equal s1, Redmine::CodesetUtil.to_utf8_by_setting(s3)
    end
  end

  def test_to_utf8_by_setting_should_be_converted_all_latin1
    with_settings :repositories_encodings => 'ISO-8859-1' do
      s1 = "\xc3\x82\xc2\x80"
      s2 = "\xC2\x80"
      s3 = s2.dup
      if s1.respond_to?(:force_encoding)
        s1.force_encoding("UTF-8")
        s2.force_encoding("ASCII-8BIT")
        s3.force_encoding("UTF-8")
      end
      assert_equal s1, Redmine::CodesetUtil.to_utf8_by_setting(s2)
      assert_equal s1, Redmine::CodesetUtil.to_utf8_by_setting(s3)
    end
  end

  def test_to_utf8_by_setting_blank_string
    assert_equal "",  Redmine::CodesetUtil.to_utf8_by_setting("")
    assert_equal nil, Redmine::CodesetUtil.to_utf8_by_setting(nil)
  end

  def test_to_utf8_by_setting_returns_ascii_as_utf8
    s1 = "ASCII"
    s2 = s1.dup
    if s1.respond_to?(:force_encoding)
      s1.force_encoding("UTF-8")
      s2.force_encoding("ISO-8859-1")
    end
    str1 = Redmine::CodesetUtil.to_utf8_by_setting(s1)
    str2 = Redmine::CodesetUtil.to_utf8_by_setting(s2)
    assert_equal s1, str1
    assert_equal s1, str2
    if s1.respond_to?(:force_encoding)
      assert_equal "UTF-8", str1.encoding.to_s
      assert_equal "UTF-8", str2.encoding.to_s
    end
  end

  def test_to_utf8_by_setting_invalid_utf8_sequences_should_be_stripped
    with_settings :repositories_encodings => '' do
      # s1 = File.read("#{RAILS_ROOT}/test/fixtures/encoding/iso-8859-1.txt")
      s1 = "Texte encod\xe9 en ISO-8859-1."
      s1.force_encoding("ASCII-8BIT") if s1.respond_to?(:force_encoding)
      str = Redmine::CodesetUtil.to_utf8_by_setting(s1)
      if str.respond_to?(:force_encoding)
        assert str.valid_encoding?
        assert_equal "UTF-8", str.encoding.to_s
      end
      assert_equal "Texte encod? en ISO-8859-1.", str
    end
  end

  def test_to_utf8_by_setting_invalid_utf8_sequences_should_be_stripped_ja_jis
    with_settings :repositories_encodings => 'ISO-2022-JP' do
      s1 = "test\xb5\xfetest\xb5\xfe"
      s1.force_encoding("ASCII-8BIT") if s1.respond_to?(:force_encoding)
      str = Redmine::CodesetUtil.to_utf8_by_setting(s1)
      if str.respond_to?(:force_encoding)
        assert str.valid_encoding?
        assert_equal "UTF-8", str.encoding.to_s
      end
      assert_equal "test??test??", str
    end
  end
end
