text: import { isEven } from "./math";
  import { is } from "immutable";
  
  describe("isEven", () => {
      it("should return true if given an even number", () => {
          // Function under test or System under test (SUT)
          const result = isEven(2);
          expect(result).toEqual(true);
      });
      it("should return false if given an odd number", () => {
          // Function under test or System under test (SUT)
          const result = isEven(1);
          expect(result).toEqual(false);
      });
  });
  