#! /usr/bin/env ruby -S rspec require 'spec_helper' describe "the values_at function" do let(:scope) { PuppetlabsSpec::PuppetInternals.scope } it "should exist" do Puppet::Parser::Functions.function("values_at").should == "function_values_at" end it "should raise a ParseError if there is less than 1 arguments" do lambda { scope.function_values_at([]) }.should( raise_error(Puppet::ParseError)) end it "should raise a ParseError if you try to use a range where stop is greater then start" do lambda { scope.function_values_at([['a','b'],["3-1"]]) }.should( raise_error(Puppet::ParseError)) end it "should return a value at from an array" do result = scope.function_values_at([['a','b','c'],"1"]) result.should(eq(['b'])) end it "should return a value at from an array when passed a range" do result = scope.function_values_at([['a','b','c'],"0-1"]) result.should(eq(['a','b'])) end it "should return chosen values from an array when passed number of indexes" do result = scope.function_values_at([['a','b','c'],["0","2"]]) result.should(eq(['a','c'])) end it "should return chosen values from an array when passed ranges and multiple indexes" do result = scope.function_values_at([['a','b','c','d','e','f','g'],["0","2","4-5"]]) result.should(eq(['a','c','e','f'])) end end