require 'test_helper'

describe 'Gemfile' do
  it 'will raise an exception if methods are called without a specified Gemfile' do
    gemfile = Eefgilm::Gemfile.new('../data/sources/')
    proc { gemfile.clean! }.must_raise(Errno::ENOENT)
  end

  describe 'Comment Proccessing' do
    before do
      @file = 'test/data/sources/dummy/Gemfile'
      @file2 = 'test/data/sources/expected/Gemfile'
      FileUtils.copy 'test/data/sources/original/groupgems', @file2
      FileUtils.copy 'test/data/sources/original/railsgem', @file
      @worker = Eefgilm::Gemfile.new('test/data/sources/dummy')
      @worker2 = Eefgilm::Gemfile.new('test/data/sources/expected')
    end

    it 'must remove a files comments' do
      @worker.clean!.wont_match(/.../)
    end

    it 'should remove unnecessary whitespace' do
      regex = /(?<=^|\[)\s+|(?<=\s)\s+/
      count = 0
      @worker.clean!
      File.read(@file).each_line do |line|
        count += 1 if regex.match(line)
      end
      count.must_equal 9
    end

    it 'should alphabetize groups' do
      @worker.clean!
      @worker.groups[:all].must_equal @worker.groups[:all].sort
    end

    it 'should keep the ruby version' do
      @worker.clean!
      @worker.rubyversion.must_include 'ruby "2.0.0"'
    end

    it do
      @worker.clean!
      @worker.source.must_include 'https://rubygems.org'
    end

    it 'without a specified ruby version, it should not have an extra line' do
      regex = /^[\s]*$\n/
      count = 0
      @worker2.clean!
      File.read(@file2).each_line do |line|
        count += 1 if regex.match(line)
      end
      count.must_equal 4
    end
  end
end