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Diffstat (limited to 'railties/test/plugin_loader_test.rb')
| -rw-r--r-- | railties/test/plugin_loader_test.rb | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/railties/test/plugin_loader_test.rb b/railties/test/plugin_loader_test.rb new file mode 100644 index 0000000000..7010a60298 --- /dev/null +++ b/railties/test/plugin_loader_test.rb @@ -0,0 +1,71 @@ +require File.dirname(__FILE__) + '/plugin_test_helper' + +class TestPluginLoader < Test::Unit::TestCase + def setup + @initializer = Rails::Initializer.new(Rails::Configuration.new) + @valid_plugin_path = plugin_fixture_path('default/stubby') + @empty_plugin_path = plugin_fixture_path('default/empty') + end + + def test_determining_whether_a_given_plugin_is_loaded + plugin_loader = loader_for(@valid_plugin_path) + assert !plugin_loader.loaded? + assert_nothing_raised do + plugin_loader.send(:register_plugin_as_loaded) + end + assert plugin_loader.loaded? + end + + def test_if_a_path_is_a_plugin_path + # This is a plugin path, with a lib dir + assert loader_for(@valid_plugin_path).plugin_path? + # This just has an init.rb and no lib dir + assert loader_for(plugin_fixture_path('default/plugin_with_no_lib_dir')).plugin_path? + # This would be a plugin path, but the directory is empty + assert !loader_for(plugin_fixture_path('default/empty')).plugin_path? + # This is a non sense path + assert !loader_for(plugin_fixture_path('default/this_directory_does_not_exist')).plugin_path? + end + + def test_if_you_try_to_load_a_non_plugin_path_you_get_a_load_error + # This path is fine so nothing is raised + assert_nothing_raised do + loader_for(@valid_plugin_path).send(:report_nonexistant_or_empty_plugin!) + end + + # This is an empty path so it raises + assert_raises(LoadError) do + loader_for(@empty_plugin_path).send(:report_nonexistant_or_empty_plugin!) + end + + assert_raises(LoadError) do + loader_for('this_is_not_a_plugin_directory').send(:report_nonexistant_or_empty_plugin!) + end + end + + def test_loading_a_plugin_gives_the_init_file_access_to_all_it_needs + failure_tip = "Perhaps someone has written another test that loads this same plugin and therefore makes the SubbyMixin constant defined already." + assert !defined?(StubbyMixin), failure_tip + assert !added_to_load_path?(@valid_plugin_path) + # The init.rb of this plugin raises if it doesn't have access to all the things it needs + assert_nothing_raised do + loader_for(@valid_plugin_path).load + end + assert added_to_load_path?(@valid_plugin_path) + assert defined?(StubbyMixin) + end + + private + def loader_for(path, initializer = @initializer) + Rails::Plugin::Loader.new(initializer, path) + end + + def plugin_fixture_path(path) + File.join(plugin_fixture_root_path, path) + end + + def added_to_load_path?(path) + $LOAD_PATH.grep(/#{path}/).size == 1 + end + +end
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