Not passing any of the tests, but works

My javascript calculator built with react hooks is not passing any of the tests but works just fine. Can I still submit it? Do you see any errors?

https://pp5w0.codesandbox.io/

Right…

but I did complete all of the user stories. For instance, " 1. My calculator should contain a clickable element containing an “=” (equal sign) with a corresponding id=“equals”" in my code:
In Calculator.js

<EqualBtn id="equals" />

In Equals.js

const EqualBtn = () => {
  const { doMath } = useContext(NumberContext);
  return (
    <button type="button" className="equal-btn" onClick={() => doMath()}>
      =
    </button>
  );
};

export default EqualBtn;

I’m not sure why my code is not passing the tests.