How do I reset the window or globalThis for every new test?

[Blankeos]

I can't seem to just use this because it does not work.

describe("a", () => {
   it("b", () => {
      const window = new Window();
      const document = window.document;
      // add globalThis.test here.

     expect(window["test"]).not.toBe(undefined); // does not work. 
   });

   it ("c", () => {
      const window = new Window();
      const document = window.document; 
   });
})

What works is if I use the GlobalRegistrator. The same code would work. BUt the it("c") will inherit the new global variable "test" from the previous it