How many of these tests pass?

rspec and local variables

describe "rspec" do
  context "using .each" do
    [1,2].each do |x|
      let(:y) { x }
      specify "#{x} == #{x}" do
        y.should == x
      end
    end
  end

  a = 1
  let(:b) { a }
  specify "#{a} == #{a}" do
    b.should == a
  end
  a = 2
end