Failure/Error: PdfSplitter.process(TEST_WORKING_PATH, TEST_PDF_NAME_WITH_SP
ACES)
     ArgumentError:
       input must be an IO-like object or a filename
     # ./lib/pdf_utils.rb:10:in `new'
     # ./lib/pdf_utils.rb:10:in `pdf_text'
     # ./lib/pdf_splitter.rb:12:in `process'
     # ./spec/lib/pdf_splitter_spec.rb:34:in `block (2 levels) in <top (required
)>'