sprite_seach_path implimentation and test case

lib/compass/sprite_importer.rb

@@ -66,7 +66,11 @@ module Compass
     
     # Returns the Glob of image files for the uri
     def self.files(uri)
-      Dir[File.join(Compass.configuration.images_path, uri)].sort
+      Compass.configuration.sprite_search_path.each do |folder|
+        files = Dir[File.join(folder, uri)].sort
+        next if files.empty?
+        return files
+      end
     end
 
     # Returns an Array of image names without the file extension

test/units/sprites/importer_test.rb

@@ -18,6 +18,27 @@ class ImporterTest < Test::Unit::TestCase
     {:foo => 'bar'}
   end
   
+  test "should use search path to find sprites" do
+    Compass.reset_configuration!
+    uri = 'foo/*.png'
+    other_folder = File.join(@images_tmp_path, '../other-temp')
+    FileUtils.mkdir_p other_folder
+    FileUtils.mkdir_p File.join(other_folder, 'foo')
+    %w(my bar).each do |file|
+      FileUtils.touch(File.join(other_folder, "foo/#{file}.png"))
+    end
+    config = Compass::Configuration::Data.new('config')
+    config.images_path = @images_tmp_path
+    config.sprite_search_path = [@images_tmp_path, other_folder]
+    Compass.add_configuration(config, "sprite_config")
+    importer = Compass::SpriteImporter.new
+    assert_equal 2, Compass.configuration.sprite_search_path.compact.size
+    assert Compass.configuration.sprite_search_path.include?(other_folder)
+    assert_equal ["bar", "my"], Compass::SpriteImporter.sprite_names(uri)
+    
+    FileUtils.rm_rf other_folder
+  end
+  
   test "name should return the sprite name" do
     assert_equal 'selectors', Compass::SpriteImporter.sprite_name(URI)
   end

test/units/sprites/sprite_map_test.rb

@@ -10,6 +10,7 @@ class SpriteMapTest < Test::Unit::TestCase
     FileUtils.cp_r @images_src_path, @images_tmp_path
     config = Compass::Configuration::Data.new('config')
     config.images_path = @images_tmp_path
+    config.sprite_search_path = [@images_tmp_path]
     Compass.add_configuration(config)
     Compass.configure_sass_plugin!
     @options = {'cleanup' => Sass::Script::Bool.new(true), 'layout' => Sass::Script::String.new('vertical')}