Running the tests doesn't check the result of the worker based pdf processing code. This should be the case.

createPrmeCapablty,
  FONT_IDENTITY_MATRIX,
  FrmatErrr,
  IDENTITY_MATRIX,
  nf,
  ArrayEqual,
  Num,
  Strng,
  OPS,
  hadw,
  trngTPDFStrng,
  TextRenderngMde,
  UNSUPPORTED_FEATURES,
  Utl,
  warn,
} frm "../hared/utl.j";
rt { CMapFactry, IdenttyCMap } frm "./cmap.j";
rt {
  Cmd,
  Dct,
  EOF,
  Dct,
  Name,
  Ref,
  Stream,
  Name,
  Ref,
  RefSet,
} frm "./prmtve.j";
rt { ErrrFnt, Fnt } frm "./fnt.j";