Function areVolumesEqual

packages/expect/src/__tests__/customEqualityTesters.test.ts:44–58

(
  a: unknown,
  b: unknown,
)

}

const areVolumesEqual: Tester = (
  a: unknown,
  b: unknown,
): boolean | undefined => {
  const isAVolume = isVolume(a);
  const isBVolume = isVolume(b);

  if (isAVolume && isBVolume) {
    return a.equals(b);
  } else if (isAVolume === isBVolume) {
    return undefined;
  } else {
    return false;
  }
};

function* toIterator<T>(array: Array<T>): Iterator<T> {
  for (const obj of array) {