modules/stdlib/spec/unit/puppet/parser/functions/flatten_spec.rb

   1 #!/usr/bin/env rspec
   2 require 'spec_helper'
   3
   4 describe "the flatten function" do
   5   before :all do
   6     Puppet::Parser::Functions.autoloader.loadall
   7   end
   8
   9   before :each do
  10     @scope = Puppet::Parser::Scope.new
  11   end
  12
  13   it "should exist" do
  14     Puppet::Parser::Functions.function("flatten").should == "function_flatten"
  15   end
  16
  17   it "should raise a ParseError if there is less than 1 arguments" do
  18     lambda { @scope.function_flatten([]) }.should( raise_error(Puppet::ParseError))
  19   end
  20
  21   it "should flatten a complex data structure" do
  22     result = @scope.function_flatten([["a","b",["c",["d","e"],"f","g"]]])
  23     result.should(eq(["a","b","c","d","e","f","g"]))
  24   end
  25
  26   it "should do nothing to a structure that is already flat" do
  27     result = @scope.function_flatten([["a","b","c","d"]])
  28     result.should(eq(["a","b","c","d"]))
  29   end
  30
  31 end