require_relative '../../../spec_helper'
require_relative '../../enumerable/fixtures/classes'

ruby_version_is "2.6" do
  describe "Enumerator::Chain#each" do
    it "calls each on its constituents as needed" do
      a = EnumerableSpecs::EachCounter.new(:a, :b)
      b = EnumerableSpecs::EachCounter.new(:c, :d)

      ScratchPad.record []
      Enumerator::Chain.new(a, b).each do |elem|
        ScratchPad << elem << b.times_yielded
      end
      ScratchPad.recorded.should == [:a, 0, :b, 0, :c, 1, :d, 2]
    end
  end
end