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[dsa-puppet.git] / 3rdparty / modules / stdlib / spec / functions / pick_spec.rb
1 #!/usr/bin/env ruby -S rspec
2 require 'spec_helper'
3
4 describe "the pick function" do
5   let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
6
7   it "should exist" do
8     expect(Puppet::Parser::Functions.function("pick")).to eq("function_pick")
9   end
10
11   it 'should return the correct value' do
12     expect(scope.function_pick(['first', 'second'])).to eq('first')
13   end
14
15   it 'should return the correct value if the first value is empty' do
16     expect(scope.function_pick(['', 'second'])).to eq('second')
17   end
18
19   it 'should remove empty string values' do
20     expect(scope.function_pick(['', 'first'])).to eq('first')
21   end
22
23   it 'should remove :undef values' do
24     expect(scope.function_pick([:undef, 'first'])).to eq('first')
25   end
26
27   it 'should remove :undefined values' do
28     expect(scope.function_pick([:undefined, 'first'])).to eq('first')
29   end
30
31   it 'should error if no values are passed' do
32     expect { scope.function_pick([]) }.to( raise_error(Puppet::ParseError, "pick(): must receive at least one non empty value"))
33   end
34 end