I have a sorting function that I’m using to sort an array based on an original array, that I am then feeding into react-final-form initial values

jest is saying I’m missing the lines for most of my copyFeatureArrOrder function and I cannot for the life of me figure out how to cover them

export const FeaturesModal = () => { 

  const copyFeatureArrOrder = (
    arr1: features[] | undefined,
    arr2: formFeaturesType[],
  ) => {
    const orderedArr: formFeaturesType[] = [];
    if (!arr1 || !arr2) return;
    arr1?.forEach((f: features, i: number) => {
      arr2.forEach((df: formFeaturesType) => {
        if (f.name === df.featureKey) {
          orderedArr.splice(i, 0, df);
        }
      });
    });
    return orderedArr;
  };

  const orderedArr = copyFeatureArrOrder(allFeaturesArr, currentFeaturesArr);

  return (
    <>
      <Form<FormValues>
        initialValues={{
          featuresArr: orderedArr,
        }}
        onSubmit={handleFormSubmit}
        render={({ handleSubmit, hasValidationErrors, submitting, submitError }) => (
          <form onSubmit={handleSubmit}>
            <Modal>
              <UpdateUnitTestForm/>
            </Modal>
          </form>
        )}
      />
    </>
  );
}

any help is appreciated