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require 'abstract_unit'
require 'active_support/core_ext/object/with_options'
class OptionMergerTest < ActiveSupport::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_lambda
local_lambda = lambda { { :lambda => true } }
with_options(@options) do |o|
assert_equal @options.merge(local_lambda.call),
o.method_with_options(local_lambda).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
def test_option_merger_implicit_receiver
@options.with_options foo: "bar" do
merge! fizz: "buzz"
end
expected = { hello: "world", foo: "bar", fizz: "buzz" }
assert_equal expected, @options
end
private
def method_with_options(options = {})
options
end
end
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