3rdparty/modules/stdlib/spec/functions/fqdn_rotate_spec.rb

   1 #! /usr/bin/env ruby -S rspec
   2 require 'spec_helper'
   3
   4 describe "the fqdn_rotate function" do
   5   let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
   6
   7   it "should exist" do
   8     expect(Puppet::Parser::Functions.function("fqdn_rotate")).to eq("function_fqdn_rotate")
   9   end
  10
  11   it "should raise a ParseError if there is less than 1 arguments" do
  12     expect { scope.function_fqdn_rotate([]) }.to( raise_error(Puppet::ParseError))
  13   end
  14
  15   it "should rotate a string and the result should be the same size" do
  16     scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
  17     result = scope.function_fqdn_rotate(["asdf"])
  18     expect(result.size).to(eq(4))
  19   end
  20
  21   it "should rotate a string to give the same results for one host" do
  22     scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1").twice
  23     expect(scope.function_fqdn_rotate(["abcdefg"])).to eql(scope.function_fqdn_rotate(["abcdefg"]))
  24   end
  25
  26   it "should rotate a string to give different values on different hosts" do
  27      scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
  28      val1 = scope.function_fqdn_rotate(["abcdefghijklmnopqrstuvwxyz01234567890987654321"])
  29      scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.2")
  30      val2 = scope.function_fqdn_rotate(["abcdefghijklmnopqrstuvwxyz01234567890987654321"])
  31      expect(val1).not_to eql(val2)
  32   end
  33
  34   it "should accept objects which extend String" do
  35     class AlsoString < String
  36     end
  37
  38     scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
  39     value = AlsoString.new("asdf")
  40     result = scope.function_fqdn_rotate([value])
  41     result.size.should(eq(4))
  42   end
  43
  44   it "should use the Puppet::Util.deterministic_rand function if available" do
  45     scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
  46     if Puppet::Util.respond_to?(:deterministic_rand)
  47       Puppet::Util.expects(:deterministic_rand).with(113646079810780526294648115052177588845,4)
  48     end
  49     scope.function_fqdn_rotate(["asdf"])
  50   end
  51
  52   it "should not leave the global seed in a deterministic state" do
  53     scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1").twice
  54     scope.function_fqdn_rotate(["asdf"])
  55     rand1 = rand()
  56     scope.function_fqdn_rotate(["asdf"])
  57     rand2 = rand()
  58     expect(rand1).not_to eql(rand2)
  59   end
  60 end