gistfile1.rb

  describe "taking |a, *b| arguments" do

    it "raises an TypeError if #to_ary raises an error" do
      obj = mock("block yield to_ary raising an error")
      obj.should_receive(:to_ary).and_raise(StandardError)

      lambda { @y.s(obj) { |a, *b| } }.should raise_error(TypeError)
    end