# vim: syntax=ruby:expandtab:shiftwidth=2:softtabstop=2:tabstop=2
#
# Copyright (c) 2016-present, Facebook, Inc.
# All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# rubocop:disable all

require 'diffy'

# Override failure_message on create_file_with_content matcher, to include
# readable diff instead of an unreadable concat.

module ChefSpec::Matchers
  class RenderFileMatcher
    def failure_message
      if @expected_content
        message = %Q{expected Chef run to render "#{@path}"\n}
        message << Diffy::Diff.
          new(@actual_content, expected_content_message).
          to_s(:color).
          split( "\n" ).
          map { |x| "\033[0m#{x}" }.
          join("\n")
        message
      end
    end
  end
end
