How do I test a file upload in rails?

Searched for this question and could not find it, or its answer on Stack Overflow, but found it elsewhere, so I'm asking to make it available on SO. The rails framework has a function fixture_file_upload (Rails 2 Rails 3, Rails 5), which will search your fixtures directory for the file specified and will make it available as a test file for the controller in functional testing. To use it: 1) Put y

[labocho]

ファイルアップロードのテスト Rack::Test::UploadedFile.new