Merge branch '4.x'

* 4.x:
  Add the pick() function

1 files changed, 34 insertions, 0 deletions

diff --git a/spec/unit/puppet/parser/functions/pick_spec.rb b/spec/unit/puppet/parser/functions/pick_spec.rb
new file mode 100644
index 0000000..761db6b
--- /dev/null
+++ b/spec/unit/puppet/parser/functions/pick_spec.rb
@@ -0,0 +1,34 @@
+#!/usr/bin/env ruby -S rspec
+require 'spec_helper'
+
+describe "the pick function" do
+  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+  it "should exist" do
+    Puppet::Parser::Functions.function("pick").should == "function_pick"
+  end
+
+  it 'should return the correct value' do
+    scope.function_pick(['first', 'second']).should == 'first'
+  end
+
+  it 'should return the correct value if the first value is empty' do
+    scope.function_pick(['', 'second']).should == 'second'
+  end
+
+  it 'should remove empty string values' do
+    scope.function_pick(['', 'first']).should == 'first'
+  end
+
+  it 'should remove :undef values' do
+    scope.function_pick([:undef, 'first']).should == 'first'
+  end
+
+  it 'should remove :undefined values' do
+    scope.function_pick([:undefined, 'first']).should == 'first'
+  end
+
+  it 'should error if no values are passed' do
+    expect { scope.function_pick([]) }.to raise_error(Puppet::Error, /Must provide non empty value./)
+  end
+end