require_relative '../../spec_helper' require_relative 'fixtures/classes' require_relative 'shared/take' describe "Enumerable#first" do it "returns the first element" do EnumerableSpecs::Numerous.new.first.should == 2 EnumerableSpecs::Empty.new.first.should == nil end it "returns nil if self is empty" do EnumerableSpecs::Empty.new.first.should == nil end it 'returns a gathered array from yield parameters' do EnumerableSpecs::YieldsMulti.new.to_enum.first.should == [1, 2] EnumerableSpecs::YieldsMixed2.new.to_enum.first.should == nil end it "raises a RangeError when passed a Bignum" do enum = EnumerableSpecs::Empty.new lambda { enum.first(bignum_value) }.should raise_error(RangeError) end describe "when passed an argument" do it_behaves_like :enumerable_take, :first end end