Merge pull request #243 from hunner/add_beaker

Add beaker tests for functions.

34 files changed, 1308 insertions, 0 deletions

diff --git a/spec/acceptance/abs_spec.rb b/spec/acceptance/abs_spec.rb
new file mode 100644
index 0000000..eeae89b
--- /dev/null
+++ b/spec/acceptance/abs_spec.rb
@@ -0,0 +1,29 @@
+require 'spec_helper_acceptance'
+
+describe 'abs function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should accept a string' do
+      pp = <<-EOS
+      $input  = '-34.56'
+      $output = abs($input)
+      notify { $output: }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: 34.56/)
+      end
+    end
+
+    it 'should accept a float' do
+      pp = <<-EOS
+      $input  = -34.56
+      $output = abs($input)
+      notify { $output: }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: 34.56/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/any2array_spec.rb b/spec/acceptance/any2array_spec.rb
new file mode 100644
index 0000000..0127303
--- /dev/null
+++ b/spec/acceptance/any2array_spec.rb
@@ -0,0 +1,48 @@
+require 'spec_helper_acceptance'
+
+describe 'any2array function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should create an empty array' do
+      pp = <<-EOS
+      $input = ''
+      $output = any2array($input)
+      validate_array($output)
+      notify { "Output: ${output}": }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: Output: /)
+      end
+    end
+
+    it 'should leave arrays modified' do
+      pp = <<-EOS
+      $input = ['test', 'array']
+      $output = any2array($input)
+      validate_array($output)
+      notify { "Output: ${output}": }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: Output: testarray/)
+      end
+    end
+
+    it 'should turn a hash into an array' do
+      pp = <<-EOS
+      $input = {'test' => 'array'}
+      $output = any2array($input)
+
+      validate_array($output)
+      # Check each element of the array is a plain string.
+      validate_string($output[0])
+      validate_string($output[1])
+      notify { "Output: ${output}": }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: Output: testarray/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/base64_spec.rb b/spec/acceptance/base64_spec.rb
new file mode 100644
index 0000000..30ba689
--- /dev/null
+++ b/spec/acceptance/base64_spec.rb
@@ -0,0 +1,17 @@
+require 'spec_helper_acceptance'
+
+describe 'base64 function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should encode then decode a string' do
+      pp = <<-EOS
+      $encodestring = base64('encode', 'thestring')
+      $decodestring = base64('decode', $encodestring)
+      notify { $decodestring: }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/thestring/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/bool2num_spec.rb b/spec/acceptance/bool2num_spec.rb
new file mode 100644
index 0000000..1cbd88d
--- /dev/null
+++ b/spec/acceptance/bool2num_spec.rb
@@ -0,0 +1,33 @@
+require 'spec_helper_acceptance'
+
+describe 'bool2num function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    ['false', 'f', '0', 'n', 'no'].each do |bool|
+      it 'should convert a given boolean, #{bool}, to 0' do
+        pp = <<-EOS
+        $input = #{bool}
+        $output = bool2num($input)
+        notify { $output: }
+        EOS
+
+        apply_manifest(pp, :catch_failures => true) do |r|
+          expect(r.stdout).to match(/Notice: 0/)
+        end
+      end
+    end
+
+    ['true', 't', '1', 'y', 'yes'].each do |bool|
+      it 'should convert a given boolean, #{bool}, to 1' do
+        pp = <<-EOS
+        $input = #{bool}
+        $output = bool2num($input)
+        notify { $output: }
+        EOS
+
+        apply_manifest(pp, :catch_failures => true) do |r|
+          expect(r.stdout).to match(/Notice: 1/)
+        end
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/build_csv.rb b/spec/acceptance/build_csv.rb
new file mode 100644
index 0000000..556d1f8
--- /dev/null
+++ b/spec/acceptance/build_csv.rb
@@ -0,0 +1,69 @@
+#!/usr/bin/env ruby
+# vim: set sw=2 sts=2 et tw=80 :
+require 'rspec'
+require 'pry'
+
+#XXX Super ugly hack to keep from starting beaker nodes
+module Kernel
+  # make an alias of the original require
+  alias_method :original_require, :require
+  # rewrite require
+  def require name
+    original_require name if name != 'spec_helper_acceptance'
+  end
+end
+UNSUPPORTED_PLATFORMS = []
+def fact(*args) [] end
+#XXX End hax
+
+# Get a list of functions for test coverage
+function_list = Dir[File.join(File.dirname(__FILE__),"..","..","lib","puppet","parser","functions","*.rb")].collect do |function_rb|
+  File.basename(function_rb,".rb")
+end
+
+## Configure rspec to parse tests
+options = RSpec::Core::ConfigurationOptions.new(['spec/acceptance'])
+configuration = RSpec::configuration
+world = RSpec::world
+options.parse_options
+options.configure(configuration)
+configuration.load_spec_files
+
+## Collect up tests and example groups into a hash
+def get_tests(children)
+  children.inject({}) do |memo,c|
+    memo[c.description] = Hash.new
+    memo[c.description]["groups"] = get_tests(c.children) unless c.children.empty?
+    memo[c.description]["tests"] = c.examples.collect { |e|
+      e.description unless e.pending?
+    }.compact unless c.examples.empty?
+    memo[c.description]["pending_tests"] = c.examples.collect { |e|
+      e.description if e.pending?
+    }.compact unless c.examples.empty?
+    memo
+  end
+end
+
+# Convert tests hash to csv format
+def to_csv(function_list,tests)
+  function_list.collect do |function_name|
+    if v = tests["#{function_name} function"]
+      positive_tests = v["groups"]["success"] ? v["groups"]["success"]["tests"].length : 0
+      negative_tests = v["groups"]["failure"] ? v["groups"]["failure"]["tests"].length : 0
+      pending_tests  =
+        (v["groups"]["failure"] ? v["groups"]["success"]["pending_tests"].length : 0) +
+        (v["groups"]["failure"] ? v["groups"]["failure"]["pending_tests"].length : 0)
+    else
+      positive_tests = 0
+      negative_tests = 0
+      pending_tests  = 0
+    end
+    sprintf("%-25s, %-9d, %-9d, %-9d", function_name,positive_tests,negative_tests,pending_tests)
+  end.compact
+end
+
+tests = get_tests(world.example_groups)
+csv = to_csv(function_list,tests)
+percentage_tested = "#{tests.count*100/function_list.count}%"
+printf("%-25s,  %-9s, %-9s, %-9s\n","#{percentage_tested} have tests.","Positive","Negative","Pending")
+puts csv
diff --git a/spec/acceptance/capitalize_spec.rb b/spec/acceptance/capitalize_spec.rb
new file mode 100644
index 0000000..c04b401
--- /dev/null
+++ b/spec/acceptance/capitalize_spec.rb
@@ -0,0 +1,32 @@
+require 'spec_helper_acceptance'
+
+describe 'capitalize function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should capitalize the first letter of a string' do
+      pp = <<-EOS
+      $input = 'this is a string'
+      $output = capitalize($input)
+      notify { $output: }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: This is a string/)
+      end
+    end
+
+    it 'should capitalize the first letter of an array of strings' do
+      pp = <<-EOS
+      $input = ['this', 'is', 'a', 'string']
+      $output = capitalize($input)
+      notify { $output: }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: This/)
+        expect(r.stdout).to match(/Notice: Is/)
+        expect(r.stdout).to match(/Notice: A/)
+        expect(r.stdout).to match(/Notice: String/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/chomp_spec.rb b/spec/acceptance/chomp_spec.rb
new file mode 100644
index 0000000..c4af9d9
--- /dev/null
+++ b/spec/acceptance/chomp_spec.rb
@@ -0,0 +1,20 @@
+require 'spec_helper_acceptance'
+
+describe 'chomp function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should eat the newline' do
+      pp = <<-EOS
+      $input = "test\n"
+      if size($input) != 5 {
+        fail("Size of ${input} is not 5.")
+      }
+      $output = chomp($input)
+      if size($output) != 4 {
+        fail("Size of ${input} is not 4.")
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+  end
+end
diff --git a/spec/acceptance/chop_spec.rb b/spec/acceptance/chop_spec.rb
new file mode 100644
index 0000000..8774390
--- /dev/null
+++ b/spec/acceptance/chop_spec.rb
@@ -0,0 +1,44 @@
+require 'spec_helper_acceptance'
+
+describe 'chop function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should eat the last character' do
+      pp = <<-EOS
+      $input = "test"
+      if size($input) != 4 {
+        fail("Size of ${input} is not 4.")
+      }
+      $output = chop($input)
+      if size($output) != 3 {
+        fail("Size of ${input} is not 3.")
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+
+    it 'should eat the last two characters of \r\n' do
+      pp = <<-EOS
+      $input = "test\r\n"
+      if size($input) != 6 {
+        fail("Size of ${input} is not 6.")
+      }
+      $output = chop($input)
+      if size($output) != 4 {
+        fail("Size of ${input} is not 4.")
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+
+    it 'should not fail on empty strings' do
+      pp = <<-EOS
+      $input = ""
+      $output = chop($input)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+  end
+end
diff --git a/spec/acceptance/concat_spec.rb b/spec/acceptance/concat_spec.rb
new file mode 100644
index 0000000..24b5955
--- /dev/null
+++ b/spec/acceptance/concat_spec.rb
@@ -0,0 +1,17 @@
+require 'spec_helper_acceptance'
+
+describe 'concat function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should concat one array to another' do
+      pp = <<-EOS
+      $output = concat(['1','2','3'],['4','5','6'])
+      validate_array($output)
+      if size($output) != 6 {
+        fail("${output} should have 6 elements.")
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+  end
+end
diff --git a/spec/acceptance/count_spec.rb b/spec/acceptance/count_spec.rb
new file mode 100644
index 0000000..0a0f5d7
--- /dev/null
+++ b/spec/acceptance/count_spec.rb
@@ -0,0 +1,29 @@
+require 'spec_helper_acceptance'
+
+describe 'count function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should count elements in an array' do
+      pp = <<-EOS
+      $input = [1,2,3,4]
+      $output = count($input)
+      notify { $output: }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: 4/)
+      end
+    end
+
+    it 'should count elements in an array that match a second argument' do
+      pp = <<-EOS
+      $input = [1,1,1,2]
+      $output = count($input, 1)
+      notify { $output: }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: 3/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/deep_merge_spec.rb b/spec/acceptance/deep_merge_spec.rb
new file mode 100644
index 0000000..676d23d
--- /dev/null
+++ b/spec/acceptance/deep_merge_spec.rb
@@ -0,0 +1,19 @@
+require 'spec_helper_acceptance'
+
+describe 'deep_merge function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should deep merge two hashes' do
+      pp = <<-EOS
+      $hash1 = {'one' => 1, 'two' => 2, 'three' => { 'four' => 4 } }
+      $hash2 = {'two' => 'dos', 'three' => { 'five' => 5 } }
+      $merged_hash = deep_merge($hash1, $hash2)
+
+      if $merged_hash != { 'one' => 1, 'two' => 'dos', 'three' => { 'four' => 4, 'five' => 5 } } {
+        fail("Hash was incorrectly merged.")
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+  end
+end
diff --git a/spec/acceptance/defined_with_params_spec.rb b/spec/acceptance/defined_with_params_spec.rb
new file mode 100644
index 0000000..7477453
--- /dev/null
+++ b/spec/acceptance/defined_with_params_spec.rb
@@ -0,0 +1,21 @@
+require 'spec_helper_acceptance'
+
+describe 'defined_with_params function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should successfully notify' do
+      pp = <<-EOS
+      user { 'dan':
+        ensure => present,
+      }
+
+      if defined_with_params(User[dan], {'ensure' => 'present' }) {
+        notify { 'User defined with ensure=>present': }
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: User defined with ensure=>present/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/delete_at_spec.rb b/spec/acceptance/delete_at_spec.rb
new file mode 100644
index 0000000..f2c5cfe
--- /dev/null
+++ b/spec/acceptance/delete_at_spec.rb
@@ -0,0 +1,18 @@
+require 'spec_helper_acceptance'
+
+describe 'delete_at function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should delete elements of the array' do
+      pp = <<-EOS
+      $output = delete_at(['a','b','c','b'], 1)
+      if $output == ['a','c','b'] {
+        notify { 'output correct': }
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: output correct/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/delete_spec.rb b/spec/acceptance/delete_spec.rb
new file mode 100644
index 0000000..e54d816
--- /dev/null
+++ b/spec/acceptance/delete_spec.rb
@@ -0,0 +1,18 @@
+require 'spec_helper_acceptance'
+
+describe 'delete function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should delete elements of the array' do
+      pp = <<-EOS
+      $output = delete(['a','b','c','b'], 'b')
+      if $output == ['a','c'] {
+        notify { 'output correct': }
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: output correct/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/delete_undef_values_spec.rb b/spec/acceptance/delete_undef_values_spec.rb
new file mode 100644
index 0000000..c2ac931
--- /dev/null
+++ b/spec/acceptance/delete_undef_values_spec.rb
@@ -0,0 +1,18 @@
+require 'spec_helper_acceptance'
+
+describe 'delete_undef_values function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should delete elements of the array' do
+      pp = <<-EOS
+      $output = delete_undef_values({a=>'A', b=>'', c=>undef, d => false})
+      if $output == { a => 'A', b => '', d => false } {
+        notify { 'output correct': }
+      }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Notice: output correct/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/num2bool_spec.rb b/spec/acceptance/num2bool_spec.rb
new file mode 100644
index 0000000..cdfbc70
--- /dev/null
+++ b/spec/acceptance/num2bool_spec.rb
@@ -0,0 +1,75 @@
+require 'spec_helper_acceptance'
+
+describe 'num2bool function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'bools positive numbers and numeric strings as true' do
+      pp = <<-EOS
+      $a = 1
+      $b = "1"
+      $c = "50"
+      $ao = num2bool($a)
+      $bo = num2bool($b)
+      $co = num2bool($c)
+      notice(inline_template('a is <%= @ao.inspect %>'))
+      notice(inline_template('b is <%= @bo.inspect %>'))
+      notice(inline_template('c is <%= @co.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/a is true/)
+        expect(r.stdout).to match(/b is true/)
+        expect(r.stdout).to match(/c is true/)
+      end
+    end
+    it 'bools negative numbers as false' do
+      pp = <<-EOS
+      $a = 0
+      $b = -0.1
+      $c = ["-50","1"]
+      $ao = num2bool($a)
+      $bo = num2bool($b)
+      $co = num2bool($c)
+      notice(inline_template('a is <%= @ao.inspect %>'))
+      notice(inline_template('b is <%= @bo.inspect %>'))
+      notice(inline_template('c is <%= @co.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/a is false/)
+        expect(r.stdout).to match(/b is false/)
+        expect(r.stdout).to match(/c is false/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'fails on words' do
+      pp = <<-EOS
+      $a = "a"
+      $ao = num2bool($a)
+      notice(inline_template('a is <%= @ao.inspect %>'))
+      EOS
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/not look like a number/)
+    end
+
+    it 'fails on numberwords' do
+      pp = <<-EOS
+      $b = "1b"
+      $bo = num2bool($b)
+      notice(inline_template('b is <%= @bo.inspect %>'))
+      EOS
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/not look like a number/)
+
+    end
+
+    it 'fails on non-numeric/strings' do
+      pending "The function will call .to_s.to_i on anything not a Numeric or
+      String, and results in 0. Is this intended?"
+      pp = <<-EOS
+      $c = {"c" => "-50"}
+      $co = num2bool($c)
+      notice(inline_template('c is <%= @co.inspect %>'))
+      EOS
+      expect(apply_manifest(ppc :expect_failures => true).stderr).to match(/Unable to parse/)
+    end
+  end
+end
diff --git a/spec/acceptance/parsejson_spec.rb b/spec/acceptance/parsejson_spec.rb
new file mode 100644
index 0000000..b2ae030
--- /dev/null
+++ b/spec/acceptance/parsejson_spec.rb
@@ -0,0 +1,33 @@
+require 'spec_helper_acceptance'
+
+describe 'parsejson function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'parses valid json' do
+      pp = <<-EOS
+      $a = '{"hunter": "washere", "tests": "passing"}'
+      $ao = parsejson($a)
+      $tests = $ao['tests']
+      notice(inline_template('tests are <%= @tests.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/tests are "passing"/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'raises error on incorrect json' do
+      pp = <<-EOS
+      $a = '{"hunter": "washere", "tests": "passing",}'
+      $ao = parsejson($a)
+      notice(inline_template('a is <%= @ao.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :expect_failures => true) do |r|
+        expect(r.stderr).to match(/expected next name/)
+      end
+    end
+
+    it 'raises error on incorrect number of arguments'
+  end
+end
diff --git a/spec/acceptance/parseyaml_spec.rb b/spec/acceptance/parseyaml_spec.rb
new file mode 100644
index 0000000..01e0988
--- /dev/null
+++ b/spec/acceptance/parseyaml_spec.rb
@@ -0,0 +1,34 @@
+require 'spec_helper_acceptance'
+
+describe 'parseyaml function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'parses valid yaml' do
+      pp = <<-EOS
+      $a = "---\nhunter: washere\ntests: passing\n"
+      $o = parseyaml($a)
+      $tests = $o['tests']
+      notice(inline_template('tests are <%= @tests.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/tests are "passing"/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'raises error on incorrect yaml' do
+      pp = <<-EOS
+      $a = "---\nhunter: washere\ntests: passing\n:"
+      $o = parseyaml($a)
+      $tests = $o['tests']
+      notice(inline_template('tests are <%= @tests.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :expect_failures => true) do |r|
+        expect(r.stderr).to match(/syntax error/)
+      end
+    end
+
+    it 'raises error on incorrect number of arguments'
+  end
+end
diff --git a/spec/acceptance/pick_spec.rb b/spec/acceptance/pick_spec.rb
new file mode 100644
index 0000000..8a768a9
--- /dev/null
+++ b/spec/acceptance/pick_spec.rb
@@ -0,0 +1,43 @@
+require 'spec_helper_acceptance'
+
+describe 'pick function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'picks a default value' do
+      pp = <<-EOS
+      $a = undef
+      $o = pick($a, 'default')
+      notice(inline_template('picked is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/picked is "default"/)
+      end
+    end
+    it 'picks the first set value' do
+      pp = <<-EOS
+      $a = "something"
+      $b = "long"
+      $o = pick($a, $b, 'default')
+      notice(inline_template('picked is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/picked is "something"/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'raises error with all undef values' do
+      pp = <<-EOS
+      $a = undef
+      $b = undef
+      $o = pick($a, $b)
+      notice(inline_template('picked is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :expect_failures => true) do |r|
+        expect(r.stderr).to match(/must receive at least one non empty value/)
+      end
+    end
+  end
+end
diff --git a/spec/acceptance/prefix_spec.rb b/spec/acceptance/prefix_spec.rb
new file mode 100644
index 0000000..d7b80a8
--- /dev/null
+++ b/spec/acceptance/prefix_spec.rb
@@ -0,0 +1,41 @@
+require 'spec_helper_acceptance'
+
+describe 'prefix function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'prefixes array of values' do
+      pp = <<-EOS
+      $o = prefix(['a','b','c'],'p')
+      notice(inline_template('prefix is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/prefix is \["pa", "pb", "pc"\]/)
+      end
+    end
+    it 'prefixs with empty array' do
+      pp = <<-EOS
+      $o = prefix([],'p')
+      notice(inline_template('prefix is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/prefix is \[\]/)
+      end
+    end
+    it 'prefixs array of values with undef' do
+      pp = <<-EOS
+      $o = prefix(['a','b','c'], undef)
+      notice(inline_template('prefix is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/prefix is \["a", "b", "c"\]/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'fails with no arguments'
+    it 'fails when first argument is not array'
+    it 'fails when second argument is not string'
+  end
+end
diff --git a/spec/acceptance/reject_spec.rb b/spec/acceptance/reject_spec.rb
new file mode 100644
index 0000000..5333f36
--- /dev/null
+++ b/spec/acceptance/reject_spec.rb
@@ -0,0 +1,41 @@
+require 'spec_helper_acceptance'
+
+describe 'reject function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'rejects array of values' do
+      pp = <<-EOS
+      $o = reject(['aaa','bbb','ccc','aaaddd'], 'aaa')
+      notice(inline_template('reject is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/reject is \["bbb", "ccc"\]/)
+      end
+    end
+    it 'rejects with empty array' do
+      pp = <<-EOS
+      $o = reject([],'aaa')
+      notice(inline_template('reject is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/reject is \[\]/)
+      end
+    end
+    it 'rejects array of values with undef' do
+      pp = <<-EOS
+      $o = reject(['aaa','bbb','ccc','aaaddd'], undef)
+      notice(inline_template('reject is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/reject is \["aaa", "bbb", "ccc", "aaaddd"\]/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'fails with no arguments'
+    it 'fails when first argument is not array'
+    it 'fails when second argument is not string'
+  end
+end
diff --git a/spec/acceptance/size_spec.rb b/spec/acceptance/size_spec.rb
new file mode 100644
index 0000000..2aacf0b
--- /dev/null
+++ b/spec/acceptance/size_spec.rb
@@ -0,0 +1,54 @@
+require 'spec_helper_acceptance'
+
+describe 'size function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'single string size' do
+      pp = <<-EOS
+      $a = 'discombobulate'
+      $o =size($a)
+      notice(inline_template('size is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/size is 14/)
+      end
+    end
+    it 'with empty string' do
+      pp = <<-EOS
+      $a = ''
+      $o =size($a)
+      notice(inline_template('size is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/size is 0/)
+      end
+    end
+    it 'with undef' do
+      pp = <<-EOS
+      $a = undef
+      $o =size($a)
+      notice(inline_template('size is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/size is 0/)
+      end
+    end
+    it 'strings in array' do
+      pp = <<-EOS
+      $a = ['discombobulate', 'moo']
+      $o =size($a)
+      notice(inline_template('size is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/size is 2/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'handles no arguments'
+    it 'handles non strings or arrays'
+  end
+end
diff --git a/spec/acceptance/sort_spec.rb b/spec/acceptance/sort_spec.rb
new file mode 100644
index 0000000..1868a03
--- /dev/null
+++ b/spec/acceptance/sort_spec.rb
@@ -0,0 +1,33 @@
+require 'spec_helper_acceptance'
+
+describe 'sort function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'sorts arrays' do
+      pp = <<-EOS
+      $a = ["the","public","art","galleries"]
+      # Anagram: Large picture halls, I bet
+      $o =sort($a)
+      notice(inline_template('sort is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/sort is \["art", "galleries", "public", "the"\]/)
+      end
+    end
+    it 'sorts strings' do
+      pp = <<-EOS
+      $a = "blowzy night-frumps vex'd jack q"
+      $o =sort($a)
+      notice(inline_template('sort is <%= @o.inspect %>'))
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/sort is "    '-abcdefghijklmnopqrstuvwxyz"/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'handles no arguments'
+    it 'handles non strings or arrays'
+  end
+end
diff --git a/spec/acceptance/validate_array_spec.rb b/spec/acceptance/validate_array_spec.rb
new file mode 100644
index 0000000..da9f465
--- /dev/null
+++ b/spec/acceptance/validate_array_spec.rb
@@ -0,0 +1,36 @@
+require 'spec_helper_acceptance'
+
+describe 'validate_array function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'validates a single argument' do
+      pp = <<-EOS
+      $one = ['a', 'b']
+      validate_array($one)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates an multiple arguments' do
+      pp = <<-EOS
+      $one = ['a', 'b']
+      $two = [['c'], 'd']
+      validate_array($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates a non-array' do
+      {
+        %{validate_array({'a' => 'hash' })} => "Hash",
+        %{validate_array('string')}         => "String",
+        %{validate_array(false)}            => "FalseClass",
+        %{validate_array(undef)}            => "String"
+      }.each do |pp,type|
+        expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/a #{type}/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments'
+  end
+end
diff --git a/spec/acceptance/validate_augeas_spec.rb b/spec/acceptance/validate_augeas_spec.rb
new file mode 100644
index 0000000..8b904f5
--- /dev/null
+++ b/spec/acceptance/validate_augeas_spec.rb
@@ -0,0 +1,39 @@
+require 'spec_helper_acceptance'
+
+describe 'validate_augeas function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'prep' do
+    it 'installs augeas for tests'
+  end
+  describe 'success' do
+    it 'validates a single argument' do
+      pp = <<-EOS
+      $one = { 'a' => 1 }
+      validate_hash($one)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates an multiple arguments' do
+      pp = <<-EOS
+      $one = { 'a' => 1 }
+      $two = { 'b' => 2 }
+      validate_hash($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates a non-hash' do
+      {
+        %{validate_hash('{ "not" => "hash" }')} => "String",
+        %{validate_hash('string')}              => "String",
+        %{validate_hash(["array"])}             => "Array",
+        %{validate_hash(undef)}                 => "String",
+      }.each do |pp,type|
+        expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/a #{type}/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments'
+  end
+end
diff --git a/spec/acceptance/validate_bool_spec.rb b/spec/acceptance/validate_bool_spec.rb
new file mode 100644
index 0000000..4e77da2
--- /dev/null
+++ b/spec/acceptance/validate_bool_spec.rb
@@ -0,0 +1,36 @@
+require 'spec_helper_acceptance'
+
+describe 'validate_bool function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'validates a single argument' do
+      pp = <<-EOS
+      $one = true
+      validate_bool($one)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates an multiple arguments' do
+      pp = <<-EOS
+      $one = true
+      $two = false
+      validate_bool($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates a non-bool' do
+      {
+        %{validate_bool('true')}  => "String",
+        %{validate_bool('false')} => "String",
+        %{validate_bool([true])}  => "Array",
+        %{validate_bool(undef)}   => "String",
+      }.each do |pp,type|
+        expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/a #{type}/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments'
+  end
+end
diff --git a/spec/acceptance/validate_cmd_spec.rb b/spec/acceptance/validate_cmd_spec.rb
new file mode 100644
index 0000000..b4d6575
--- /dev/null
+++ b/spec/acceptance/validate_cmd_spec.rb
@@ -0,0 +1,49 @@
+require 'spec_helper_acceptance'
+
+describe 'validate_cmd function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'validates a true command' do
+      pp = <<-EOS
+      $one = 'foo'
+      if $::osfamily == 'windows' {
+        $two = 'echo' #shell built-in
+      } else {
+        $two = '/bin/echo'
+      }
+      validate_cmd($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates a fail command' do
+      pp = <<-EOS
+      $one = 'foo'
+      if $::osfamily == 'windows' {
+        $two = 'C:/aoeu'
+      } else {
+        $two = '/bin/aoeu'
+      }
+      validate_cmd($one,$two)
+      EOS
+
+      apply_manifest(pp, :expect_failures => true)
+    end
+    it 'validates a fail command with a custom error message' do
+      pp = <<-EOS
+      $one = 'foo'
+      if $::osfamily == 'windows' {
+        $two = 'C:/aoeu'
+      } else {
+        $two = '/bin/aoeu'
+      }
+      validate_cmd($one,$two,"aoeu is dvorak)
+      EOS
+
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/aoeu is dvorak/)
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments'
+    it 'handles improper argument types'
+  end
+end
diff --git a/spec/acceptance/validate_hash_spec.rb b/spec/acceptance/validate_hash_spec.rb
new file mode 100644
index 0000000..d26c9e7
--- /dev/null
+++ b/spec/acceptance/validate_hash_spec.rb
@@ -0,0 +1,36 @@
+require 'spec_helper_acceptance'
+
+describe 'validate_hash function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'validates a single argument' do
+      pp = <<-EOS
+      $one = { 'a' => 1 }
+      validate_hash($one)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates an multiple arguments' do
+      pp = <<-EOS
+      $one = { 'a' => 1 }
+      $two = { 'b' => 2 }
+      validate_hash($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates a non-hash' do
+      {
+        %{validate_hash('{ "not" => "hash" }')} => "String",
+        %{validate_hash('string')}              => "String",
+        %{validate_hash(["array"])}             => "Array",
+        %{validate_hash(undef)}                 => "String",
+      }.each do |pp,type|
+        expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/a #{type}/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments'
+  end
+end
diff --git a/spec/acceptance/validate_re_spec.rb b/spec/acceptance/validate_re_spec.rb
new file mode 100644
index 0000000..8d7e634
--- /dev/null
+++ b/spec/acceptance/validate_re_spec.rb
@@ -0,0 +1,46 @@
+require 'spec_helper_acceptance'
+
+describe 'validate_re function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'validates a string' do
+      pp = <<-EOS
+      $one = 'one'
+      $two = '^one$'
+      validate_re($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates an array' do
+      pp = <<-EOS
+      $one = 'one'
+      $two = ['^one$', '^two']
+      validate_re($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates a failed array' do
+      pp = <<-EOS
+      $one = 'one'
+      $two = ['^two$', '^three']
+      validate_re($one,$two)
+      EOS
+
+      apply_manifest(pp, :expect_failures => true)
+    end
+    it 'validates a failed array with a custom error message' do
+      pp = <<-EOS
+      $one = '3.4.3'
+      $two = '^2.7'
+      validate_re($one,$two,"The $puppetversion fact does not match 2.7")
+      EOS
+
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/does not match/)
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments'
+    it 'handles improper argument types'
+  end
+end
diff --git a/spec/acceptance/validate_slength_spec.rb b/spec/acceptance/validate_slength_spec.rb
new file mode 100644
index 0000000..96b2a6f
--- /dev/null
+++ b/spec/acceptance/validate_slength_spec.rb
@@ -0,0 +1,71 @@
+require 'spec_helper_acceptance'
+
+describe 'validate_slength function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'validates a single string max' do
+      pp = <<-EOS
+      $one = 'discombobulate'
+      $two = 17
+      validate_slength($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates multiple string maxes' do
+      pp = <<-EOS
+      $one = ['discombobulate', 'moo']
+      $two = 17
+      validate_slength($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates min/max of  strings in array' do
+      pp = <<-EOS
+      $one = ['discombobulate', 'moo']
+      $two = 17
+      $three = 3
+      validate_slength($one,$two,$three)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates a single string max of incorrect length' do
+      pp = <<-EOS
+      $one = 'discombobulate'
+      $two = 1
+      validate_slength($one,$two)
+      EOS
+
+      apply_manifest(pp, :expect_failures => true)
+    end
+    it 'validates multiple string maxes of incorrect length' do
+      pp = <<-EOS
+      $one = ['discombobulate', 'moo']
+      $two = 3
+      validate_slength($one,$two)
+      EOS
+
+      apply_manifest(pp, :expect_failures => true)
+    end
+    it 'validates multiple strings min/maxes of incorrect length' do
+      pp = <<-EOS
+      $one = ['discombobulate', 'moo']
+      $two = 17
+      $three = 10
+      validate_slength($one,$two,$three)
+      EOS
+
+      apply_manifest(pp, :expect_failures => true)
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments'
+    it 'handles improper first argument type'
+    it 'handles non-strings in array of first argument'
+    it 'handles improper second argument type'
+    it 'handles improper third argument type'
+    it 'handles negative ranges'
+    it 'handles improper ranges'
+  end
+end
diff --git a/spec/acceptance/validate_string_spec.rb b/spec/acceptance/validate_string_spec.rb
new file mode 100644
index 0000000..f8658c5
--- /dev/null
+++ b/spec/acceptance/validate_string_spec.rb
@@ -0,0 +1,35 @@
+require 'spec_helper_acceptance'
+
+describe 'validate_string function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'validates a single argument' do
+      pp = <<-EOS
+      $one = 'string'
+      validate_string($one)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates an multiple arguments' do
+      pp = <<-EOS
+      $one = 'string'
+      $two = 'also string'
+      validate_string($one,$two)
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'validates a non-string' do
+      {
+        %{validate_string({ 'a' => 'hash' })} => "Hash",
+        %{validate_string(['array'])}         => "Array",
+        %{validate_string(false)}             => "FalseClass",
+      }.each do |pp,type|
+        expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/a #{type}/)
+      end
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments'
+  end
+end
diff --git a/spec/acceptance/values_at_spec.rb b/spec/acceptance/values_at_spec.rb
new file mode 100644
index 0000000..fb661dd
--- /dev/null
+++ b/spec/acceptance/values_at_spec.rb
@@ -0,0 +1,71 @@
+require 'spec_helper_acceptance'
+
+describe 'values_at function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'returns a specific value' do
+      pp = <<-EOS
+      $one = ['a','b','c','d','e']
+      $two = 1
+      $output = values_at($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\["b"\]/)
+    end
+    it 'returns a specific negative index value' do
+      pp = <<-EOS
+      $one = ['a','b','c','d','e']
+      $two = "-1"
+      $output = values_at($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\["e"\]/)
+    end
+    it 'returns a range of values' do
+      pp = <<-EOS
+      $one = ['a','b','c','d','e']
+      $two = "1-3"
+      $output = values_at($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\["b", "c", "d"\]/)
+    end
+    it 'returns a negative specific value and range of values' do
+      pp = <<-EOS
+      $one = ['a','b','c','d','e']
+      $two = ["1-3",0]
+      $output = values_at($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\["b", "c", "d", "a"\]/)
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments' do
+      pp = <<-EOS
+      $one = ['a','b','c','d','e']
+      $output = values_at($one)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/Wrong number of arguments/)
+    end
+    it 'handles non-indicies arguments' do
+      pp = <<-EOS
+      $one = ['a','b','c','d','e']
+      $two = []
+      $output = values_at($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/at least one positive index/)
+    end
+
+    it 'detects index ranges smaller than the start range'
+    it 'handles index ranges larger than array'
+    it 'handles non-integer indicies'
+  end
+end
diff --git a/spec/acceptance/values_spec.rb b/spec/acceptance/values_spec.rb
new file mode 100644
index 0000000..0c12702
--- /dev/null
+++ b/spec/acceptance/values_spec.rb
@@ -0,0 +1,30 @@
+require 'spec_helper_acceptance'
+
+describe 'values function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'returns an array of values' do
+      pp = <<-EOS
+      $arg = {
+        'a' => 1,
+        'b' => 2,
+        'c' => 3,
+      }
+      $output = values($arg)
+      notice(inline_template('<%= @output.sort.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\["1", "2", "3"\]/)
+    end
+  end
+  describe 'failure' do
+    it 'handles non-hash arguments' do
+      pp = <<-EOS
+      $arg = "foo"
+      $output = values($arg)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/Requires hash/)
+    end
+  end
+end
diff --git a/spec/acceptance/zip_spec.rb b/spec/acceptance/zip_spec.rb
new file mode 100644
index 0000000..a551b80
--- /dev/null
+++ b/spec/acceptance/zip_spec.rb
@@ -0,0 +1,73 @@
+require 'spec_helper_acceptance'
+require 'puppet'
+
+describe 'zip function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'zips two arrays of numbers together' do
+      pp = <<-EOS
+      $one = [1,2,3,4]
+      $two = [5,6,7,8]
+      $output = zip($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\[\["1", "5"\], \["2", "6"\], \["3", "7"\], \["4", "8"\]\]/)
+    end
+    it 'zips two arrays of numbers & bools together' do
+      pp = <<-EOS
+      $one = [1,2,"three",4]
+      $two = [true,true,false,false]
+      $output = zip($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\[\["1", true\], \["2", true\], \["three", false\], \["4", false\]\]/)
+    end
+    it 'zips two arrays of numbers together and flattens them' do
+      # XXX This only tests the argument `true`, even though the following are valid:
+      # 1 t y true yes
+      # 0 f n false no
+      # undef undefined
+      pp = <<-EOS
+      $one = [1,2,3,4]
+      $two = [5,6,7,8]
+      $output = zip($one,$two,true)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\["1", "5", "2", "6", "3", "7", "4", "8"\]/)
+    end
+    it 'handles unmatched length' do
+      # XXX Is this expected behavior?
+      pp = <<-EOS
+      $one = [1,2]
+      $two = [5,6,7,8]
+      $output = zip($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :catch_failures => true).stdout).to match(/\[\["1", "5"\], \["2", "6"\]\]/)
+    end
+  end
+  describe 'failure' do
+    it 'handles improper number of arguments' do
+      pp = <<-EOS
+      $one = [1,2]
+      $output = zip($one)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/Wrong number of arguments/)
+    end
+    it 'handles improper argument types' do
+      pp = <<-EOS
+      $one = "a string"
+      $two = [5,6,7,8]
+      $output = zip($one,$two)
+      notice(inline_template('<%= @output.inspect %>'))
+      EOS
+
+      expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/Requires array/)
+    end
+  end
+end