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require 'abstract_unit'
require 'active_support/core_ext/class'
require 'set'
class ClassTest < ActiveSupport::TestCase
class Parent; end
class Foo < Parent; end
class Bar < Foo; end
class Baz < Bar; end
class A < Parent; end
class B < A; end
class C < B; end
def test_descendants
assert_equal [Foo, Bar, Baz, A, B, C].to_set, Parent.descendants.to_set
assert_equal [Bar, Baz].to_set, Foo.descendants.to_set
assert_equal [Baz], Bar.descendants
assert_equal [], Baz.descendants
end
def test_subclasses
assert_equal [Foo, A].to_set, Parent.subclasses.to_set
assert_equal [Bar], Foo.subclasses
assert_equal [Baz], Bar.subclasses
assert_equal [], Baz.subclasses
end
end
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