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rails--rails/activesupport/test/configurable_test.rb
Francesco Rodriguez 5e1d40f773 add instance_accessor option to ActiveSupport::Configurable#config_accessor
Changes:

* Add `instance_accessor` option to opt out of the instance writer and
  instance reader methods.
* Raises a NameError if the name of the attribute is not valid.
* Update documentation and tests.
* Add CHANGELOG entry in activesupport.
2012-06-05 10:50:48 -05:00

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2.7 KiB
Ruby

require 'abstract_unit'
require 'active_support/configurable'
class ConfigurableActiveSupport < ActiveSupport::TestCase
class Parent
include ActiveSupport::Configurable
config_accessor :foo
config_accessor :bar, instance_reader: false, instance_writer: false
config_accessor :baz, instance_accessor: false
end
class Child < Parent
end
setup do
Parent.config.clear
Parent.config.foo = :bar
Child.config.clear
end
test "adds a configuration hash" do
assert_equal({ foo: :bar }, Parent.config)
end
test "adds a configuration hash to a module as well" do
mixin = Module.new { include ActiveSupport::Configurable }
mixin.config.foo = :bar
assert_equal({ foo: :bar }, mixin.config)
end
test "configuration hash is inheritable" do
assert_equal :bar, Child.config.foo
assert_equal :bar, Parent.config.foo
Child.config.foo = :baz
assert_equal :baz, Child.config.foo
assert_equal :bar, Parent.config.foo
end
test "configuration accessors is not available on instance" do
instance = Parent.new
assert !instance.respond_to?(:bar)
assert !instance.respond_to?(:bar=)
assert !instance.respond_to?(:baz)
assert !instance.respond_to?(:baz=)
end
test "configuration hash is available on instance" do
instance = Parent.new
assert_equal :bar, instance.config.foo
assert_equal :bar, Parent.config.foo
instance.config.foo = :baz
assert_equal :baz, instance.config.foo
assert_equal :bar, Parent.config.foo
end
test "configuration is crystalizeable" do
parent = Class.new { include ActiveSupport::Configurable }
child = Class.new(parent)
parent.config.bar = :foo
assert_method_not_defined parent.config, :bar
assert_method_not_defined child.config, :bar
assert_method_not_defined child.new.config, :bar
parent.config.compile_methods!
assert_equal :foo, parent.config.bar
assert_equal :foo, child.new.config.bar
assert_method_defined parent.config, :bar
assert_method_defined child.config, :bar
assert_method_defined child.new.config, :bar
end
test "should raise name error if attribute name is invalid" do
assert_raises NameError do
Class.new do
include ActiveSupport::Configurable
config_accessor "invalid attribute name"
end
end
end
def assert_method_defined(object, method)
methods = object.public_methods.map(&:to_s)
assert methods.include?(method.to_s), "Expected #{methods.inspect} to include #{method.to_s.inspect}"
end
def assert_method_not_defined(object, method)
methods = object.public_methods.map(&:to_s)
assert !methods.include?(method.to_s), "Expected #{methods.inspect} to not include #{method.to_s.inspect}"
end
end