-#! /usr/bin/env ruby -S rspec
require 'spec_helper'
-describe "the shuffle function" do
- let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+describe 'shuffle' do
+ it { is_expected.not_to eq(nil) }
+ it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
+ it {
+ pending('Current implementation ignores parameters after the first.')
+ is_expected.to run.with_params([], 'extra').and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i)
+ }
+ it { is_expected.to run.with_params(1).and_raise_error(Puppet::ParseError, %r{Requires either array or string to work}) }
+ it { is_expected.to run.with_params({}).and_raise_error(Puppet::ParseError, %r{Requires either array or string to work}) }
+ it { is_expected.to run.with_params(true).and_raise_error(Puppet::ParseError, %r{Requires either array or string to work}) }
- it "should exist" do
- expect(Puppet::Parser::Functions.function("shuffle")).to eq("function_shuffle")
- end
-
- it "should raise a ParseError if there is less than 1 arguments" do
- expect { scope.function_shuffle([]) }.to( raise_error(Puppet::ParseError))
- end
+ context 'when running with a specific seed' do
+ # make tests deterministic
+ before(:each) { srand(2) }
- it "should shuffle a string and the result should be the same size" do
- result = scope.function_shuffle(["asdf"])
- expect(result.size).to(eq(4))
- end
+ it { is_expected.to run.with_params([]).and_return([]) }
+ it { is_expected.to run.with_params(['a']).and_return(['a']) }
+ it { is_expected.to run.with_params(['one']).and_return(['one']) }
+ it { is_expected.to run.with_params(['one', 'two', 'three']).and_return(['two', 'one', 'three']) }
+ it { is_expected.to run.with_params(['one', 'two', 'three', 'four']).and_return(['four', 'three', 'two', 'one']) }
- it "should shuffle a string but the sorted contents should still be the same" do
- result = scope.function_shuffle(["adfs"])
- expect(result.split("").sort.join("")).to(eq("adfs"))
- end
+ it { is_expected.to run.with_params('').and_return('') }
+ it { is_expected.to run.with_params('a').and_return('a') }
+ it { is_expected.to run.with_params('abc').and_return('bac') }
+ it { is_expected.to run.with_params('abcd').and_return('dcba') }
- it "should accept objects which extend String" do
- class AlsoString < String
+ context 'with UTF8 and double byte characters' do
+ it { is_expected.to run.with_params('ůţƒ8 ŧέχŧ şŧґíńģ').and_return('ģńş ůχţέƒŧí8ґŧŧ ') }
+ it { is_expected.to run.with_params('日本語の文字列').and_return('字本日語文列の') }
end
- value = AlsoString.new('asdf')
- result = scope.function_shuffle([value])
- result.size.should(eq(4))
+ context 'when using a class extending String' do
+ it { is_expected.to run.with_params(AlsoString.new('asdfghjkl')).and_return('lkhdsfajg') }
+ end
end
end