Class: WrapIO::Capture

Inherits:
Object
  • Object
show all
Defined in:
lib/wrapio/capture.rb

Overview

A small class built to capture the output from STDOUT.

Class Method Summary collapse

Class Method Details

.output { ... } ⇒ Object

Captures the output of $stdout. Temporarily swaps $stdout with an instance of the StringIO class.

Yields:

  • the block of code from which to capture output



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# File 'lib/wrapio/capture.rb', line 14

def self.output
  begin
    $stdout = captor = StringIO.new
    yield
  ensure
    $stdout = STDOUT
  end
  WrapIO.log(captor.string, :output) if WrapIO.debug
  captor.string
end