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

describe "Enumerable#chain" do
  before :each do
    ScratchPad.record []
  end

  it "returns a chain of self and provided enumerables" do
    one = EnumerableSpecs::Numerous.new(1)
    two = EnumerableSpecs::Numerous.new(2, 3)
    three = EnumerableSpecs::Numerous.new(4, 5, 6)

    chain = one.chain(two, three)

    chain.each { |item| ScratchPad << item }
    ScratchPad.recorded.should == [1, 2, 3, 4, 5, 6]
  end

  it "returns an Enumerator::Chain if given a block" do
    EnumerableSpecs::Numerous.new.chain.should be_an_instance_of(Enumerator::Chain)
  end
end