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717ab0bb2e
Doesn't include receiver or singleton classes. Implements [Feature #14394] Co-authored-by: fatkodima <fatkodima123@gmail.com> Co-authored-by: Benoit Daloze <eregontp@gmail.com>
38 lines
1 KiB
Ruby
38 lines
1 KiB
Ruby
require_relative '../../spec_helper'
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require_relative '../module/fixtures/classes'
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ruby_version_is '3.1' do
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describe "Class#descendants" do
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it "returns a list of classes descended from self (excluding self)" do
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assert_descendants(ModuleSpecs::Parent, [ModuleSpecs::Child, ModuleSpecs::Child2, ModuleSpecs::Grandchild])
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end
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it "does not return included modules" do
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parent = Class.new
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child = Class.new(parent)
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mod = Module.new
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parent.include(mod)
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assert_descendants(parent, [child])
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end
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it "does not return singleton classes" do
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a = Class.new
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a_obj = a.new
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def a_obj.force_singleton_class
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42
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end
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a.descendants.should_not include(a_obj.singleton_class)
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end
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it "has 1 entry per module or class" do
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ModuleSpecs::Parent.descendants.should == ModuleSpecs::Parent.descendants.uniq
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end
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def assert_descendants(mod, descendants)
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mod.descendants.sort_by(&:inspect).should == descendants.sort_by(&:inspect)
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end
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end
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end
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