Class: Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet-check/utils.rb

Overview

utility methods totally not edited from StackOverflow

Class Method Summary collapse

Class Method Details

.capture_stderr ⇒ Object

captures stderr from a block: err = capture_stderr { code }



17
18
19
20
21
22
23
24
25
 
# File 'lib/puppet-check/utils.rb', line 17

def self.capture_stderr
  Thread.current[:old_stderr] = $stderr
  $stderr = StringIO.new
  yield
  $stderr.string
ensure
  $stderr = Thread.current[:old_stderr] if Thread.current[:old_stderr]
  Thread.current[:old_stderr] = nil
end

.capture_stdout ⇒ Object

captures stdout from a block: out = capture_stdout { code }



6
7
8
9
10
11
12
13
14
 
# File 'lib/puppet-check/utils.rb', line 6

def self.capture_stdout
  Thread.current[:old_stdout] = $stdout
  $stdout = StringIO.new
  yield
  $stdout.string
ensure
  $stdout = Thread.current[:old_stdout] if Thread.current[:old_stdout]
  Thread.current[:old_stdout] = nil
end