module AttachmentHelpers

def attachment_file_size(attachment)

attachment file size presentation can change more easily.
It is intended to be used to avoid the implementation details, so that the

Gives the file size in an human readable form 
def attachment_file_size(attachment)
  ActiveSupport::NumberHelper.number_to_human_size(attachment.file_size)
end

def upload_test_file(file, options = {})

Used in non-system tests that need files.
Creates ActiveStorage::Blob object and returns its signed_id 
def upload_test_file(file, options = {})
  filename = options[:filename] || upload_test_file_filename(file)
  content_type = options[:content_type] || upload_test_file_content_type(file)
  blob = ActiveStorage::Blob.create_and_upload!(
    io: File.open(file),
    filename:,
    content_type:
  )
  return blob if options[:return_blob]
  blob.signed_id
end

def upload_test_file_content_type(file) 

def upload_test_file_content_type(file)
  return file.content_type if file.respond_to? :content_type
  MIME::Types.type_for(file).first.content_type
end

def upload_test_file_filename(file) 

def upload_test_file_filename(file)
  return file.original_filename if file.respond_to? :original_filename
  file.split("/").last
end