3rdparty/modules/stdlib/spec/functions/flatten_spec.rb

   1 #! /usr/bin/env ruby -S rspec
   2 require 'spec_helper'
   3
   4 describe "the flatten function" do
   5   let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
   6   it "should exist" do
   7     expect(Puppet::Parser::Functions.function("flatten")).to eq("function_flatten")
   8   end
   9
  10   it "should raise a ParseError if there is less than 1 arguments" do
  11     expect { scope.function_flatten([]) }.to( raise_error(Puppet::ParseError))
  12   end
  13
  14   it "should raise a ParseError if there is more than 1 argument" do
  15     expect { scope.function_flatten([[], []]) }.to( raise_error(Puppet::ParseError))
  16   end
  17
  18   it "should flatten a complex data structure" do
  19     result = scope.function_flatten([["a","b",["c",["d","e"],"f","g"]]])
  20     expect(result).to(eq(["a","b","c","d","e","f","g"]))
  21   end
  22
  23   it "should do nothing to a structure that is already flat" do
  24     result = scope.function_flatten([["a","b","c","d"]])
  25     expect(result).to(eq(["a","b","c","d"]))
  26   end
  27 end