require File.dirname(__FILE__) + "/spec_helper"
require 'rubygems'
require 'spec'
require 'filetesthelper'
include FileTestHelper

describe FileTestHelper do
  it 'should start in an empty working directory' do
    with_files() do
      Dir.glob('**/*').size == 0
    end
  end
  
  it 'should not use the current directory as default' do
    initial_directory = Dir.pwd
    with_files() do
      Dir.pwd.should_not == initial_directory
    end
    Dir.pwd.should == initial_directory
  end
  
  it 'should delete the working directory and its contents after use' do
    working_directory_path = ''
    with_files() do
      working_directory_path = Dir.pwd
    end
    working_directory_path.should_not be_empty
    File.exist?(working_directory_path).should be_false
  end
  
  it 'should create the files and directories that were specified in a hash' do
    files_to_create = {'a directory/a file.txt' => '', 'a directory/another file.rb' => '', 'an_empty_directory/' => '', 'a_file' => ''}
    with_files(files_to_create) do
      files_to_create.each_key{|created_file| File.exist?(created_file).should be_true}
    end
  end
  
  it 'should be possible to define the content of created files' do
    with_files('filea' => 'content of filea', 'fileb' => 'content of fileb') do
      File.read('filea').should == 'content of filea'
      File.read('fileb').should == 'content of fileb'
    end
  end
  
  it 'should interpret a path with an ending / as a directory' do
    with_files('this is a directory/another dir/' => '') do
      File.directory?('this is a directory/another dir').should be_true
    end    
  end

  it 'should throw an error if trying to set file content to a directory' do
    lambda { with_files('directory/' => 'imposible content, directories are not files') {}}.should raise_error
  end
  
  it 'should throw an error if a path which starts with the "/" character is specified' do
    lambda { with_files('/directory/filea' => 'content of filea') {}}.should raise_error
  end
  
  it 'should throw an error if a path uses ".."' do
    lambda { with_files('../../dir/filea' => 'content of filea') {}}.should raise_error
  end
end