Prawn Prawnto

I'm trying to create a table with a number of rows, one of which has a long text string. When making a call to render the table it simply hangs. I've created the test case below:

What happens if that in the 'bad_data' array , if the characters are one less it works ok, otherwise any more characters and it fails to render or complete.

require 'prawn/core'
require 'prawn/layout'

Prawn::Document.generate("/tmp/example.pdf", :page_size => 'A4', :layout => :potrait) do |pdf|

data = [["a", "b"]] big_data = [["0","0123467890123467890123467890123467890123467890123467890123456789"]] bad_data = [["0","0123467890123467890123467890123467890123467890123467890123456789ABCDEFGHIJK"]]

#simple test small data - works ok pdf.table(data)

#slightly more data - nearly to margin edge of page pdf.table(big_data)

#ain't goin' work - gets stuck with layout of text in cell pdf.table(bad_data)

end