Function _maybeConvertBody

packages/common/http/testing/src/request.ts:231–250

* Convert a response body to the requested type.

(
  responseType: string,
  body: ArrayBuffer | Blob | string | number | Object | (string | number | Object | null)[] | null,
)

 * Convert a response body to the requested type.
 */
function _maybeConvertBody(
  responseType: string,
  body: ArrayBuffer | Blob | string | number | Object | (string | number | Object | null)[] | null,
): ArrayBuffer | Blob | string | number | Object | (string | number | Object | null)[] | null {
  if (body === null) {
    return null;
  }
  switch (responseType) {
    case 'arraybuffer':
      return _toArrayBufferBody(body);
    case 'blob':
      return _toBlob(body);
    case 'json':
      return _toJsonBody(body);
    case 'text':
      return _toTextBody(body);
    default:
      throw new Error(`Unsupported responseType: ${responseType}`);
  }
}