infrastructure smoketest example (rspec)

http_helpers.rb

require 'open-uri'

# simple wrapper around open-uri's open() that will
# fetch an HTTP or HTTPS resource including follow redirects.
# Returns a hash with 2 members:
#
#  response[:meta] = the original open-uri response object. Use this to 
#                    access metadata such as status code.  See
#                    http://ruby-doc.org/stdlib-1.9.2/libdoc/open-uri/rdoc/OpenURI/Meta.html
#                    for a list of attributes and methods available.                 
#  response[:body] = the response content as string
#
def get(url)
  r = {}
  resp = open(url)
  r[:meta] = resp
  r[:body] = resp.read
  return r
end

process_helpers.rb

def count_processes_matching_regex( regex )
  cnt = 0
  `ps auxw`.split("\n").each do |l|
    cnt += 1  if l.match regex
  end
  return cnt
end

sms_gateway_spec.rb

require File.expand_path(File.join(File.dirname(__FILE__), 'lib', 'spec_helper'))

describe "role: sms_gateway smoketests" do

  it "should have a 1 process running with the words 'java' and 'sms-gateway'" do
    count_processes_matching_regex( /java.+sms-gateway/ ).should == 1
  end
  
  it "should be listening via http on port 5555" do
    r = get( "http://localhost:5555/sms-gateway/" )
    r[:body].should include 'pageok'
  end
      
end