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require "abstract_unit"
require "active_support/concern"
class ConcernTest < ActiveSupport::TestCase
module Baz
extend ActiveSupport::Concern
class_methods do
def baz
"baz"
end
def included_ran=(value)
@@included_ran = value
end
def included_ran
@@included_ran
end
end
included do
self.included_ran = true
end
def baz
"baz"
end
end
module Bar
extend ActiveSupport::Concern
include Baz
module ClassMethods
def baz
"bar's baz + " + super
end
end
def bar
"bar"
end
def baz
"bar+" + super
end
end
module Foo
extend ActiveSupport::Concern
include Bar, Baz
end
module Qux
module ClassMethods
end
end
def setup
@klass = Class.new
end
def test_module_is_included_normally
@klass.include(Baz)
assert_equal "baz", @klass.new.baz
assert @klass.included_modules.include?(ConcernTest::Baz)
end
def test_class_methods_are_extended
@klass.include(Baz)
assert_equal "baz", @klass.baz
assert_equal ConcernTest::Baz::ClassMethods, (class << @klass; included_modules; end)[0]
end
def test_class_methods_are_extended_only_on_expected_objects
::Object.__send__(:include, Qux)
Object.extend(Qux::ClassMethods)
# module needs to be created after Qux is included in Object or bug won't
# be triggered
test_module = Module.new do
extend ActiveSupport::Concern
class_methods do
def test
end
end
end
@klass.include test_module
assert_equal false, Object.respond_to?(:test)
Qux.class_eval do
remove_const :ClassMethods
end
end
def test_included_block_is_ran
@klass.include(Baz)
assert_equal true, @klass.included_ran
end
def test_modules_dependencies_are_met
@klass.include(Bar)
assert_equal "bar", @klass.new.bar
assert_equal "bar+baz", @klass.new.baz
assert_equal "bar's baz + baz", @klass.baz
assert @klass.included_modules.include?(ConcernTest::Bar)
end
def test_dependencies_with_multiple_modules
@klass.include(Foo)
assert_equal [ConcernTest::Foo, ConcernTest::Bar, ConcernTest::Baz], @klass.included_modules[0..2]
end
def test_raise_on_multiple_included_calls
assert_raises(ActiveSupport::Concern::MultipleIncludedBlocks) do
Module.new do
extend ActiveSupport::Concern
included do
end
included do
end
end
end
end
end
|
