message: fix(testing): parse response body to string conditionally
diff: @@ -9,11 +9,13 @@ import { HttpTestBedRequest } from './http.testBed.request.interface';
  const parseResponseBody = (props: HttpTestBedResponseProps): string | Array<any> | Record<string, any> | undefined =>
  pipe(
  O.fromNullable(props.body),
  - O.map(body => body.toString()),
  O.map(body => {
  switch (getContentType(props.headers)) {
  case ContentType.APPLICATION_JSON:
  - return parseJson(body);
  + return pipe(body.toString(), parseJson);
  + case ContentType.TEXT_PLAIN:
  + case ContentType.TEXT_HTML:
  + return body.toString();
  default:
  return body;
  }
  