values_spec.rb
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values_spec.rb
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	#! /usr/bin/env ruby -S rspec
	require 'spec_helper'

	describe "the values function" do
	let(:scope) { PuppetlabsSpec::PuppetInternals.scope }

	it "should exist" do
	expect(Puppet::Parser::Functions.function("values")).to eq("function_values")
	end

	it "should raise a ParseError if there is less than 1 arguments" do
	expect { scope.function_values([]) }.to( raise_error(Puppet::ParseError))
	end

	it "should return values from a hash" do
	result = scope.function_values([{'a'=>'1','b'=>'2','c'=>'3'}])
	# =~ is the RSpec::Matchers::MatchArray matcher.
	# A.K.A. "array with same elements" (multiset) matching
	expect(result).to match_array(%w{ 1 2 3 })
	end

	it "should return a multiset" do
	result = scope.function_values([{'a'=>'1','b'=>'3','c'=>'3'}])
	expect(result).to match_array(%w{ 1 3 3 })
	expect(result).not_to match_array(%w{ 1 3 })
	end

	it "should raise a ParseError unless a Hash is provided" do
	expect { scope.function_values([['a','b','c']]) }.to( raise_error(Puppet::ParseError))
	end
	end