#!/usr/bin/env rspec require 'spec_helper' describe "the fqdn_rand function" do before :all do Puppet::Parser::Functions.autoloader.loadall end before :each do @scope = Puppet::Parser::Scope.new @scope[:fqdn] = "127.0.0.1" end it "should exist" do Puppet::Parser::Functions.function("fqdn_rand").should == "function_fqdn_rand" end it "should handle 0 arguments" do lambda { @scope.function_fqdn_rand([]) }.should_not raise_error(Puppet::ParseError) end it "should handle 1 argument'}" do lambda { @scope.function_fqdn_rand([3]) }.should_not raise_error(Puppet::ParseError) end (1..10).each { |n| it "should handle #{n} additional arguments" do lambda { @scope.function_fqdn_rand([3,1,2,3,4,5,6,7,8,9,10][0..n]) }.should_not raise_error(Puppet::ParseError) end it "should handle #{n} additional string arguments" do lambda { @scope.function_fqdn_rand([3,%w{ 1 2 3 4 5 6 7 8 9 10}].flatten[0..n]) }.should_not raise_error(Puppet::ParseError) end } it "should return a value less than max" do @scope.function_fqdn_rand([3]).should satisfy {|n| n.to_i < 3 } end it "should return the same values on subsequent invocations for the same host" do @scope.function_fqdn_rand([3,4]).should eql(@scope.function_fqdn_rand([3, 4])) end it "should return different sequences of value for different hosts" do val1 = @scope.function_fqdn_rand([10000000,4]) @scope.expects(:[]).with("::fqdn").returns("127.0.0.2") val2 = @scope.function_fqdn_rand([10000000,4]) val1.should_not eql(val2) end it "should return different values for the same hosts with different seeds" do val1 = @scope.function_fqdn_rand([10000000,4]) val2 = @scope.function_fqdn_rand([10000000,42]) val1.should_not eql(val2) end end