require 'spec_helper'

describe Immutable::List do
  [:include?, :member?].each do |method|
    describe "##{method}" do
      context 'on a really big list' do
        it "doesn't run out of stack" do
          -> { BigList.send(method, nil) }.should_not raise_error
        end
      end

      [
        [[], 'A', false],
        [[], nil, false],
        [['A'], 'A', true],
        [['A'], 'B', false],
        [['A'], nil, false],
        [['A', 'B', nil], 'A', true],
        [['A', 'B', nil], 'B', true],
        [['A', 'B', nil], nil, true],
        [['A', 'B', nil], 'C', false],
        [[2], 2, true],
        [[2], 2.0, true],
        [[2.0], 2.0, true],
        [[2.0], 2, true],
      ].each do |values, item, expected|
        context "on #{values.inspect}" do
          it "returns #{expected.inspect}" do
            L[*values].send(method, item).should == expected
          end
        end
      end
    end
  end
end