Split out the basic plugin locator functionality into an abstract super class. Add a FileSystemLocator to do the job of checking the plugin_paths for plugins. Add plugin_locators configuration option which will iterate over the set of plugin locators and load each of the plugin loaders they return. Rename locater everywhere to locator. [Marcel Molina Jr.]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6290 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 41 insertions, 0 deletions

diff --git a/railties/test/plugin_locator_test.rb b/railties/test/plugin_locator_test.rb
new file mode 100644
index 0000000000..5ea89844d0
--- /dev/null
+++ b/railties/test/plugin_locator_test.rb
@@ -0,0 +1,41 @@
+require File.dirname(__FILE__) + '/plugin_test_helper'
+
+class TestPluginFileSystemLocator < Test::Unit::TestCase
+  def setup
+    configuration = Rails::Configuration.new
+    # We need to add our testing plugin directory to the plugin paths so
+    # the locator knows where to look for our plugins
+    configuration.plugin_paths << plugin_fixture_root_path
+    @initializer = Rails::Initializer.new(configuration)
+    @locator     = new_locator
+  end
+  
+  def test_no_plugins_are_loaded_if_the_configuration_has_an_empty_plugin_list
+    only_load_the_following_plugins! []
+    assert_equal [], @locator.plugins
+  end
+  
+  def test_only_the_specified_plugins_are_located_in_the_order_listed
+    plugin_names = %w(stubby acts_as_chunky_bacon)
+    only_load_the_following_plugins! plugin_names
+    assert_equal plugin_names, @locator.plugin_names
+  end
+  
+  def test_registering_a_plugin_name_that_does_not_exist_raises_a_load_error
+    only_load_the_following_plugins! %w(stubby acts_as_a_non_existant_plugin)
+    assert_raises(LoadError) do
+      @locator.plugins
+    end
+  end
+  
+  def test_all_plugins_are_loaded_when_registered_plugin_list_is_untouched
+    failure_tip = "It's likely someone has added a new plugin fixture without updating this list"
+    assert_equal %w(a acts_as_chunky_bacon plugin_with_no_lib_dir stubby), @locator.plugin_names, failure_tip
+  end
+  
+  private
+    def new_locator(initializer = @initializer)
+      Rails::Plugin::FileSystemLocator.new(initializer)
+    end
+      
+end
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