Redmine

            data.index("\x00") || data.count("\x00-\x1f\x7f", "^\t\r\n").fdiv(data.size) > 0.3

# frozen_string_literal: true

# Redmine - project management software

# Copyright (C) 2006-2023  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_relative '../../../../../test_helper'

require 'redmine/scm/adapters/abstract_adapter'

class ScmDataTest < ActiveSupport::TestCase

  include Redmine::Scm::Adapters

  def test_binary_with_binary_data

    data = +"\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x10"

    data.force_encoding('ASCII-8BIT')

    assert ScmData.binary?(data)

  end

  def test_binary_with_text_data

    data = "Flexible\nProject\tManagement\nSoftware\r\n"

    assert_not ScmData.binary?(data)

  end

  def test_binary_with_utf8_text_should_not_be_binary

    # full-width Latin letters ("\uFF32\uFF45\uFF44\uFF4D\uFF49\uFF4E\uFF45")

    data = "Ｒｅｄｍｉｎｅ"

    assert_not ScmData.binary?(data)

  end

  def test_binary_with_ascii_text_containing_0x00_should_be_binary

    data = +"null\0"

    assert ScmData.binary?(data)

  end

end