--- /dev/null
+#! /usr/bin/env ruby -S rspec
+require 'spec_helper'
+
+describe "the delete_at function" do
+ let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+ it "should exist" do
+ expect(Puppet::Parser::Functions.function("delete_at")).to eq("function_delete_at")
+ end
+
+ it "should raise a ParseError if there is less than 1 arguments" do
+ expect { scope.function_delete_at([]) }.to( raise_error(Puppet::ParseError))
+ end
+
+ it "should delete an item at specified location from an array" do
+ result = scope.function_delete_at([['a','b','c'],1])
+ expect(result).to(eq(['a','c']))
+ end
+
+ it "should not change origin array passed as argument" do
+ origin_array = ['a','b','c','d']
+ result = scope.function_delete_at([origin_array, 1])
+ expect(origin_array).to(eq(['a','b','c','d']))
+ end
+end