class

StringIO

v2_5_5 - Show latest stable - Superclass: Object

Pseudo I/O on String object.

Commonly used to simulate `$stdio` or `$stderr`

Examples

require 'stringio'

io = StringIO.new
io.puts "Hello World"
io.string #=> "Hello World\n"

Included modules

Enumerable
IO::generic_readable
IO::generic_writable

Files

ext/stringio/stringio.c

1Note

Useful for mocking out IO methods like #gets and #puts

dennyabraham · Oct 11, 2010

This class is helpful when testing certain classes of software libraries that are dependent on console input and output, similar to some testing uses of Java's StringBuffer