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require 'abstract_unit'
require 'controller/fake_models'
class CompiledTemplatesTest < Test::Unit::TestCase
def setup
@explicit_view_paths = nil
@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
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