--- /dev/null
+require 'abstract_unit'
+require 'controller/fake_models'
+
+class CompiledTemplatesTest < Test::Unit::TestCase
+
+ def setup
+ @compiled_templates = ActionView::Base::CompiledTemplates
+ @compiled_templates.instance_methods.each do |m|
+ @compiled_templates.send(:remove_method, m) if m =~ /^_run_/
+ end
+ end
+
+ def test_template_gets_compiled
+ with_caching(true) do
+ assert_equal 0, @compiled_templates.instance_methods.size
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ assert_equal 1, @compiled_templates.instance_methods.size
+ end
+ end
+
+ def test_template_gets_recompiled_when_using_different_keys_in_local_assigns
+ with_caching(true) do
+ assert_equal 0, @compiled_templates.instance_methods.size
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb", :locals => {:foo => "bar"})
+ assert_equal 2, @compiled_templates.instance_methods.size
+ end
+ end
+
+ def test_compiled_template_will_not_be_recompiled_when_rendered_with_identical_local_assigns
+ with_caching(true) do
+ assert_equal 0, @compiled_templates.instance_methods.size
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ ActionView::Template.any_instance.expects(:compile!).never
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ end
+ end
+
+ def test_template_changes_are_not_reflected_with_cached_template_loading
+ with_caching(true) do
+ with_reloading(false) do
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ modify_template "test/hello_world.erb", "Goodbye world!" do
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ end
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ end
+ end
+ end
+
+ def test_template_changes_are_reflected_without_cached_template_loading
+ with_caching(true) do
+ with_reloading(true) do
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ modify_template "test/hello_world.erb", "Goodbye world!" do
+ assert_equal "Goodbye world!", render(:file => "test/hello_world.erb")
+ end
+ assert_equal "Hello world!", render(:file => "test/hello_world.erb")
+ end
+ end
+ end
+
+ def test_template_becomes_missing_if_deleted_without_cached_template_loading
+ with_reloading(true) do
+ assert_equal 'Hello world!', render(:file => 'test/hello_world.erb')
+ delete_template 'test/hello_world.erb' do
+ assert_raise(ActionView::MissingTemplate) { render(:file => 'test/hello_world.erb') }
+ end
+ assert_equal 'Hello world!', render(:file => 'test/hello_world.erb')
+ end
+ end
+
+ def test_swapping_template_handler_is_working_without_cached_template_loading
+ with_reloading(true) do
+ assert_equal 'Hello world!', render(:file => 'test/hello_world')
+ delete_template 'test/hello_world.erb' do
+ rename_template 'test/hello_world_from_rxml.builder', 'test/hello_world.builder' do
+ assert_equal "<html>\n <p>Hello</p>\n</html>\n", render(:file => 'test/hello_world')
+ end
+ end
+ assert_equal 'Hello world!', render(:file => 'test/hello_world')
+ end
+ end
+
+ def test_adding_localized_template_will_take_precedence_without_cached_template_loading
+ with_reloading(true) do
+ assert_equal 'Hello world!', render(:file => 'test/hello_world')
+ rename_template 'test/hello_world.da.html.erb', 'test/hello_world.en.html.erb' do
+ assert_equal 'Hey verden', render(:file => 'test/hello_world')
+ end
+ end
+ end
+
+ def test_deleting_localized_template_will_fall_back_to_non_localized_template_without_cached_template_loading
+ with_reloading(true) do
+ rename_template 'test/hello_world.da.html.erb', 'test/hello_world.en.html.erb' do
+ assert_equal 'Hey verden', render(:file => 'test/hello_world')
+ delete_template 'test/hello_world.en.html.erb' do
+ assert_equal 'Hello world!', render(:file => 'test/hello_world')
+ end
+ assert_equal 'Hey verden', render(:file => 'test/hello_world')
+ end
+ end
+ end
+
+ def test_parallel_reloadable_view_paths_are_working
+ with_reloading(true) do
+ view_paths_copy = new_reloadable_view_paths
+ assert_equal 'Hello world!', render(:file => 'test/hello_world')
+ with_view_paths(view_paths_copy, new_reloadable_view_paths) do
+ assert_equal 'Hello world!', render(:file => 'test/hello_world')
+ end
+ modify_template 'test/hello_world.erb', 'Goodbye world!' do
+ assert_equal 'Goodbye world!', render(:file => 'test/hello_world')
+ modify_template 'test/hello_world.erb', 'So long, world!' do
+ with_view_paths(view_paths_copy, new_reloadable_view_paths) do
+ assert_equal 'So long, world!', render(:file => 'test/hello_world')
+ end
+ assert_equal 'So long, world!', render(:file => 'test/hello_world')
+ end
+ end
+ end
+ end
+
+ private
+ def render(*args)
+ view_paths = @explicit_view_paths || ActionController::Base.view_paths
+ ActionView::Base.new(view_paths, {}).render(*args)
+ end
+
+ def with_view_paths(*args)
+ args.each do |view_paths|
+ begin
+ @explicit_view_paths = view_paths
+ yield
+ ensure
+ @explicit_view_paths = nil
+ end
+ end
+ end
+
+ def reset_mtime_of(template_name, view_paths_to_use)
+ view_paths_to_use.find_template(template_name).previously_last_modified = 10.seconds.ago unless ActionView::Base.cache_template_loading?
+ end
+
+ def modify_template(template, content, view_paths_to_use = ActionController::Base.view_paths)
+ filename = filename_for(template)
+ old_content = File.read(filename)
+ begin
+ File.open(filename, "wb+") { |f| f.write(content) }
+ reset_mtime_of(template, view_paths_to_use)
+ yield
+ ensure
+ File.open(filename, "wb+") { |f| f.write(old_content) }
+ reset_mtime_of(template, view_paths_to_use)
+ end
+ end
+
+ def filename_for(template)
+ File.join(FIXTURE_LOAD_PATH, template)
+ end
+
+ def rename_template(old_name, new_name)
+ File.rename(filename_for(old_name), filename_for(new_name))
+ yield
+ ensure
+ File.rename(filename_for(new_name), filename_for(old_name))
+ end
+
+ def delete_template(template, &block)
+ rename_template(template, File.join(File.dirname(template), "__#{File.basename(template)}"), &block)
+ end
+
+ def with_caching(perform_caching)
+ old_perform_caching = ActionController::Base.perform_caching
+ begin
+ ActionController::Base.perform_caching = perform_caching
+ yield
+ ensure
+ ActionController::Base.perform_caching = old_perform_caching
+ end
+ end
+
+ def with_reloading(reload_templates, view_paths_owner = ActionController::Base)
+ old_view_paths, old_cache_templates = view_paths_owner.view_paths, ActionView::Base.cache_template_loading
+ begin
+ ActionView::Base.cache_template_loading = !reload_templates
+ view_paths_owner.view_paths = view_paths_for(reload_templates)
+ yield
+ ensure
+ view_paths_owner.view_paths, ActionView::Base.cache_template_loading = old_view_paths, old_cache_templates
+ end
+ end
+
+ def new_reloadable_view_paths
+ ActionView::PathSet.new(CACHED_VIEW_PATHS.map(&:to_s))
+ end
+
+ def view_paths_for(reload_templates)
+ # reloadable paths are cheap to create
+ reload_templates ? new_reloadable_view_paths : CACHED_VIEW_PATHS
+ end
+end