it("should include a chunk nested in an empty chunk", (done) => {
  require.ensure(["./a"], () => {
    require.ensure([], () => {
      require.ensure(["./a"], () => {
        require.ensure([], () => {
          const b = require("./b");
          expect(b).toBe(42);
          done();
        });
      });
    });
  });
});
