Rails upload file test
I wrote a rails service that can take a file as the posted params or data in the raw body. Like the good developer I am I wanted to create unit test for this functionally. Unsure how I could do this I search the Google for terms including but not limited to upload test file post rails with no good results. I did find fixture_file_upload which I now question what it really does.
I should have known the solution from odd test mishaps I have had before.
When you set params in the testing frame work they are passed as is.
For example:
This will set param[:file] to a Tempfile like a normal mutil-part form post would. If you did not find this out already Rails will not always return you a Tempfile for posted files. If the file is small enough it will be a StringIO object. If you are reading the contents they will function the same real_data = params[:file].read . If you plan on resending the data you might want to check the kind_of? on the object that was passed in.
anyway good to know stuff.
I should have known the solution from odd test mishaps I have had before.
When you set params in the testing frame work they are passed as is.
For example:
x = Tempfile.new() x.write = temp_file_data x.rewind post :service_x,:file=>x,value=>"x"
This will set param[:file] to a Tempfile like a normal mutil-part form post would. If you did not find this out already Rails will not always return you a Tempfile for posted files. If the file is small enough it will be a StringIO object. If you are reading the contents they will function the same real_data = params[:file].read . If you plan on resending the data you might want to check the kind_of? on the object that was passed in.
anyway good to know stuff.
