CODEWITHSUNDEEP
ruby-on-railsfaker
Rajkumar P
Rajkumar P

Reputation: 179

Faker::File in Rspec

I have written rspec for controller. And paperclip is used for file upload. I have supposed to write rspec for pagination. For that I want create multiple entries, each entry should have file with csv extension and each file name should be unique.

For that I have move on to Faker gem for generating fake files.

I have tried like

30.times { Post.create!(file: Rack::Test::UploadedFile.new(Faker::File.file_name(dir: Rails.root + 'spec/fixtures/file', name: "testing_file_#{rand(100)}", ext: 'csv'))) }

But It will raise an error like 

RuntimeError: /Users/*/**/spec/fixtures/file/testing_file_28.csv file does not exist

I have no idea, about FAKER::FILE. Is there is any way to succeed this approach.

Upvotes: 1

Views: 1623

Answers (1)

swiknaba
swiknaba

Reputation: 83

  1. Does the file testing_file_28.csv really exist in that path? AFAIK, Faker does not generate files, but will just load one that you do have in your directory (source: https://github.com/faker-ruby/faker/blob/master/doc/default/file.md)

  2. Why do you need Faker for that? Would

Rack::Test::UploadedFile.new("#{Rails.root}/spec/fixtures/files/testing_file_#{rand(100)}.csv", 'application/csv')

also do the job?

  1. consider using Rails.root.join('foo', 'bar') over Rails.root + "foo/bar" to avoid troubles with path separators (i.e. / vs. \ depending on your OS). If you go with Faker, and you pass the separator manually, consider using File::Separator from the Ruby kernel, see: https://ruby-doc.org/core-2.7.0/File.html

  2. Since it is a CSV file, you could also write a method, that just generates random CSVs, using CSV.generate. CSV, in the end, is just a string with , and ;/\n as separators. This you can just pass as IO object to Rack::Test::UploadedFile.new, i.e. no need for physical files bloating your spec folder.

Upvotes: 1

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