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-rw-r--r--spec/functions/fqdn_rand_string_spec.rb91
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diff --git a/spec/functions/fqdn_rand_string_spec.rb b/spec/functions/fqdn_rand_string_spec.rb
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+++ b/spec/functions/fqdn_rand_string_spec.rb
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+#! /usr/bin/env ruby -S rspec
+require 'spec_helper'
+
+describe "the fqdn_rand_string function" do
+ let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+ it "should exist" do
+ expect(Puppet::Parser::Functions.function("fqdn_rand_string")).to eq("function_fqdn_rand_string")
+ end
+
+ it "should raise an ArgumentError if there is less than 1 argument" do
+ expect { fqdn_rand_string() }.to( raise_error(ArgumentError, /wrong number of arguments/))
+ end
+
+ it "should raise an ArgumentError if argument 1 isn't a positive integer" do
+ expect { fqdn_rand_string(0) }.to( raise_error(ArgumentError, /first argument must be a positive integer/))
+ expect { fqdn_rand_string(-1) }.to( raise_error(ArgumentError, /first argument must be a positive integer/))
+ expect { fqdn_rand_string(0.5) }.to( raise_error(ArgumentError, /first argument must be a positive integer/))
+ end
+
+ it "provides a valid alphanumeric string when no character set is provided" do
+ length = 100
+ string = %r{\A[a-zA-Z0-9]{#{length}}\z}
+ expect(fqdn_rand_string(length).match(string)).not_to eq(nil)
+ end
+
+ it "provides a valid alphanumeric string when an undef character set is provided" do
+ length = 100
+ string = %r{\A[a-zA-Z0-9]{#{length}}\z}
+ expect(fqdn_rand_string(length, :charset => nil).match(string)).not_to eq(nil)
+ end
+
+ it "provides a valid alphanumeric string when an empty character set is provided" do
+ length = 100
+ string = %r{\A[a-zA-Z0-9]{#{length}}\z}
+ expect(fqdn_rand_string(length, :charset => '').match(string)).not_to eq(nil)
+ end
+
+ it "uses a provided character set" do
+ length = 100
+ charset = '!@#$%^&*()-_=+'
+ string = %r{\A[#{charset}]{#{length}}\z}
+ expect(fqdn_rand_string(length, :charset => charset).match(string)).not_to eq(nil)
+ end
+
+ it "provides a random string exactly as long as the given length" do
+ expect(fqdn_rand_string(10).size).to eql(10)
+ end
+
+ it "provides the same 'random' value on subsequent calls for the same host" do
+ expect(fqdn_rand_string(10)).to eql(fqdn_rand_string(10))
+ end
+
+ it "considers the same host and same extra arguments to have the same random sequence" do
+ first_random = fqdn_rand_string(10, :extra_identifier => [1, "same", "host"])
+ second_random = fqdn_rand_string(10, :extra_identifier => [1, "same", "host"])
+
+ expect(first_random).to eql(second_random)
+ end
+
+ it "allows extra arguments to control the random value on a single host" do
+ first_random = fqdn_rand_string(10, :extra_identifier => [1, "different", "host"])
+ second_different_random = fqdn_rand_string(10, :extra_identifier => [2, "different", "host"])
+
+ expect(first_random).not_to eql(second_different_random)
+ end
+
+ it "should return different strings for different hosts" do
+ val1 = fqdn_rand_string(10, :host => "first.host.com")
+ val2 = fqdn_rand_string(10, :host => "second.host.com")
+
+ expect(val1).not_to eql(val2)
+ end
+
+ def fqdn_rand_string(max, args = {})
+ host = args[:host] || '127.0.0.1'
+ charset = args[:charset]
+ extra = args[:extra_identifier] || []
+
+ scope = PuppetlabsSpec::PuppetInternals.scope
+ scope.stubs(:[]).with("::fqdn").returns(host)
+ scope.stubs(:lookupvar).with("::fqdn").returns(host)
+
+ function_args = [max]
+ if args.has_key?(:charset) or !extra.empty?
+ function_args << charset
+ end
+ function_args += extra
+ scope.function_fqdn_rand_string(function_args)
+ end
+end