describe("Calculator", function() {
  it("should add numbers", function() {
    var input = 5,
        output = 5;
    expect(Calculator.add(input)).toEqual(output);
    // See what happens if we add a second number
        output = 10;
    expect(Calculator.add(input)).toEqual(output);
  });
});
@@ -29,16 +29,134 @@
 ion() %7B%0A
+  it(%22should store the current value at all times%22, function() %7B%0A    expect(Calculator.current).toBeDefined();%0A  %7D);%0A%0A
   it(%22sh

create test to see if the current number is defined in the calculator class