test file for sprite command

test/units/sprites/sprite_command_test.rb

@@ -0,0 +1,60 @@
+require 'test_helper'
+
+class SpriteCommandTest < Test::Unit::TestCase
+  attr_reader :test_dir
+  
+  def setup
+    @images_src_path = File.join(File.dirname(__FILE__), '..', '..', 'fixtures', 'sprites', 'public', 'images')
+    @images_tmp_path = File.join(File.dirname(__FILE__), '..', '..', 'fixtures', 'sprites', 'public', 'images-tmp')
+    @before_dir = ::Dir.pwd
+    create_temp_cli_dir
+    create_sprite_temp
+    File.open(File.join(@test_dir, 'config.rb'), 'w') do |f|
+      f << config_data
+    end
+  end
+  
+  def create_sprite_temp
+    ::FileUtils.cp_r @images_src_path, @images_tmp_path
+  end
+
+  def clean_up_sprites
+    ::FileUtils.rm_r @images_tmp_path
+  end
+  
+  def config_data
+    return <<-CONFIG
+      images_path = #{@images_tmp_path.inspect}
+    CONFIG
+  end
+
+  def create_temp_cli_dir
+    directory = File.join(File.expand_path('../', __FILE__), 'test')
+    ::FileUtils.mkdir_p directory
+     @test_dir = directory
+  end
+
+  def run_compass_with_options(options)
+    output = 'foo'
+    ::Dir.chdir @test_dir
+    %x{compass #{options.join(' ')}}
+  end
+
+  def options_to_cli(options)
+    options.map.flatten!
+  end
+
+  def teardown
+    ::Dir.chdir @before_dir
+    clean_up_sprites
+    if File.exists?(@test_dir)
+      ::FileUtils.rm_r @test_dir
+    end
+  end
+
+  it "should create sprite file" do
+    assert_equal 0, run_compass_with_options(['sprite', "-f", 'stylesheet.scss', "'#{@images_tmp_path}/*.png'"]).to_i
+    assert File.exists?(File.join(test_dir, 'stylesheet.scss'))
+  end
+
+end