require 'abstract_unit' require 'active_support/core_ext/object/with_options' class OptionMergerTest < Test::Unit::TestCase def setup @options = {:hello => 'world'} end def test_method_with_options_merges_options_when_options_are_present local_options = {:cool => true} with_options(@options) do |o| assert_equal local_options, method_with_options(local_options) assert_equal @options.merge(local_options), o.method_with_options(local_options) end end def test_method_with_options_appends_options_when_options_are_missing with_options(@options) do |o| assert_equal Hash.new, method_with_options assert_equal @options, o.method_with_options end end def test_method_with_options_allows_to_overwrite_options local_options = {:hello => 'moon'} assert_equal @options.keys, local_options.keys with_options(@options) do |o| assert_equal local_options, method_with_options(local_options) assert_equal @options.merge(local_options), o.method_with_options(local_options) assert_equal local_options, o.method_with_options(local_options) end with_options(local_options) do |o| assert_equal local_options.merge(@options), o.method_with_options(@options) end end def test_nested_method_with_options_containing_hashes_merge with_options :conditions => { :method => :get } do |outer| outer.with_options :conditions => { :domain => "www" } do |inner| expected = { :conditions => { :method => :get, :domain => "www" } } assert_equal expected, inner.method_with_options end end end def test_nested_method_with_options_containing_hashes_overwrite with_options :conditions => { :method => :get, :domain => "www" } do |outer| outer.with_options :conditions => { :method => :post } do |inner| expected = { :conditions => { :method => :post, :domain => "www" } } assert_equal expected, inner.method_with_options end end end def test_nested_method_with_options_containing_hashes_going_deep with_options :html => { :class => "foo", :style => { :margin => 0, :display => "block" } } do |outer| outer.with_options :html => { :title => "bar", :style => { :margin => "1em", :color => "#fff" } } do |inner| expected = { :html => { :class => "foo", :title => "bar", :style => { :margin => "1em", :display => "block", :color => "#fff" } } } assert_equal expected, inner.method_with_options end end end def test_nested_method_with_options_using_lamdba local_lamdba = lambda { { :lambda => true } } with_options(@options) do |o| assert_equal @options.merge(local_lamdba.call), o.method_with_options(local_lamdba).call end end # Needed when counting objects with the ObjectSpace def test_option_merger_class_method assert_equal ActiveSupport::OptionMerger, ActiveSupport::OptionMerger.new('', '').class end private def method_with_options(options = {}) options end end