spec/ruby/core/module/used_refinements_spec.rb


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require_relative '../../spec_helper'

describe "Module.used_refinements" do
  ruby_version_is "3.2" do
    it "returns list of all refinements imported in the current scope" do
      refinement_int = nil
      refinement_str = nil
      ScratchPad.record []

      m1 = Module.new do
        refine Integer do
          refinement_int = self
        end
      end

      m2 = Module.new do
        refine String do
          refinement_str = self
        end
      end

      Module.new do
        using m1
        using m2

        Module.used_refinements.each { |r| ScratchPad << r }
      end

      ScratchPad.recorded.sort_by(&:object_id).should == [refinement_int, refinement_str].sort_by(&:object_id)
    end

    it "returns empty array if does not have any refinements imported" do
      used_refinements = nil

      Module.new do
        used_refinements = Module.used_refinements
      end

      used_refinements.should == []
    end

    it "ignores refinements imported in a module that is included into the current one" do
      used_refinements = nil

      m1 = Module.new do
        refine Integer do
          nil
        end
      end

      m2 = Module.new do
        using m1
      end

      Module.new do
        include m2

        used_refinements = Module.used_refinements
      end

      used_refinements.should == []
    end

    it "returns refinements even not defined directly in a module refinements are imported from" do
      used_refinements = nil
      ScratchPad.record []

      m1 = Module.new do
        refine Integer do
          ScratchPad << self
        end
      end

      m2 = Module.new do
        include m1
      end

      Module.new do
        using m2

        used_refinements = Module.used_refinements
      end

      used_refinements.should == ScratchPad.recorded
    end
  end
end