Convert tests to use plain rspec-puppet

Tests in the new style produces the following documentation output:

abs
  should not eq nil
  should run abs() and raise an Puppet::ParseError
  should run abs(-34) and return 34
  should run abs("-34") and return 34
  should run abs(34) and return 34
  should run abs("34") and return 34

Gemfile

@@ -15,6 +15,7 @@ group :development, :unit_tests do
   gem 'rspec', '~> 3.1.0',       :require => false
   gem 'rspec-puppet',            :require => false
   gem 'mocha',                   :require => false
+  # keep for its rake task for now
   gem 'puppetlabs_spec_helper',  :require => false
   gem 'puppet-lint',             :require => false
   gem 'metadata-json-lint',      :require => false

Rakefile

@@ -1,4 +1,5 @@
 require 'rubygems'
+# keep for compatibility for now
 require 'puppetlabs_spec_helper/rake_tasks'
 require 'puppet-lint/tasks/puppet-lint'
 PuppetLint.configuration.send('disable_80chars')

lib/puppet/parser/functions/member.rb

@@ -44,7 +44,7 @@ module Puppet::Parser::Functions
     end
 
     if arguments[1].is_a? String or arguments[1].is_a? Fixnum
-      item = Array(arguments[1])
+      item = [arguments[1]]
     else
       item = arguments[1]
     end

spec/acceptance/anchor_spec.rb

@@ -0,0 +1,26 @@
+require 'spec_helper_acceptance'
+
+describe 'anchor type', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+  describe 'success' do
+    it 'should effect proper chaining of resources' do
+      pp = <<-EOS
+      class anchored {
+        anchor { 'anchored::begin': }
+        ~> anchor { 'anchored::end': }
+      }
+
+      class anchorrefresh {
+        notify { 'first': }
+        ~> class { 'anchored': }
+        ~> anchor { 'final': }
+      }
+
+      include anchorrefresh
+      EOS
+
+      apply_manifest(pp, :catch_failures => true) do |r|
+        expect(r.stdout).to match(/Anchor\[final\]: Triggered 'refresh'/)
+      end
+    end
+  end
+end

spec/functions/abs_spec.rb

@@ -1,25 +1,30 @@
-#! /usr/bin/env ruby -S rspec
-
 require 'spec_helper'
 
-describe "the abs function" do
-  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
-
-  it "should exist" do
-    expect(Puppet::Parser::Functions.function("abs")).to eq("function_abs")
-  end
+describe 'abs' do
+  it { is_expected.not_to eq(nil) }
 
-  it "should raise a ParseError if there is less than 1 arguments" do
-    expect { scope.function_abs([]) }.to( raise_error(Puppet::ParseError))
+  describe 'signature validation in puppet3', :unless => RSpec.configuration.puppet_future do
+    it { is_expected.to run.with_params().and_raise_error(Puppet::ParseError, /wrong number of arguments/i) }
+    it {
+      pending("Current implementation ignores parameters after the first.")
+      is_expected.to run.with_params(1, 2).and_raise_error(Puppet::ParseError, /wrong number of arguments/i)
+    }
   end
 
-  it "should convert a negative number into a positive" do
-    result = scope.function_abs(["-34"])
-    expect(result).to(eq(34))
+  describe 'signature validation in puppet4', :if => RSpec.configuration.puppet_future do
+    it { pending "the puppet 4 implementation"; is_expected.to run.with_params().and_raise_error(ArgumentError) }
+    it { pending "the puppet 4 implementation"; is_expected.to run.with_params(1, 2).and_raise_error(ArgumentError) }
+    it { pending "the puppet 4 implementation"; is_expected.to run.with_params([]).and_raise_error(ArgumentError) }
+    it { pending "the puppet 4 implementation"; is_expected.to run.with_params({}).and_raise_error(ArgumentError) }
+    it { pending "the puppet 4 implementation"; is_expected.to run.with_params(true).and_raise_error(ArgumentError) }
   end
 
-  it "should do nothing with a positive number" do
-    result = scope.function_abs(["5678"])
-    expect(result).to(eq(5678))
-  end
+  it { is_expected.to run.with_params(-34).and_return(34) }
+  it { is_expected.to run.with_params("-34").and_return(34) }
+  it { is_expected.to run.with_params(34).and_return(34) }
+  it { is_expected.to run.with_params("34").and_return(34) }
+  it { is_expected.to run.with_params(-34.5).and_return(34.5) }
+  it { is_expected.to run.with_params("-34.5").and_return(34.5) }
+  it { is_expected.to run.with_params(34.5).and_return(34.5) }
+  it { is_expected.to run.with_params("34.5").and_return(34.5) }
 end

spec/functions/any2array_spec.rb

@@ -1,55 +1,15 @@
-#! /usr/bin/env ruby -S rspec
 require 'spec_helper'
 
-describe "the any2array function" do
-  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
-
-  it "should exist" do
-    expect(Puppet::Parser::Functions.function("any2array")).to eq("function_any2array")
-  end
-
-  it "should return an empty array if there is less than 1 argument" do
-    result = scope.function_any2array([])
-    expect(result).to(eq([]))
-  end
-
-  it "should convert boolean true to [ true ] " do
-    result = scope.function_any2array([true])
-    expect(result).to(eq([true]))
-  end
-
-  it "should convert one object to [object]" do
-    result = scope.function_any2array(['one'])
-    expect(result).to(eq(['one']))
-  end
-
-  it "should convert multiple objects to [objects]" do
-    result = scope.function_any2array(['one', 'two'])
-    expect(result).to(eq(['one', 'two']))
-  end
-
-  it "should return empty array it was called with" do
-    result = scope.function_any2array([[]])
-    expect(result).to(eq([]))
-  end
-
-  it "should return one-member array it was called with" do
-    result = scope.function_any2array([['string']])
-    expect(result).to(eq(['string']))
-  end
-
-  it "should return multi-member array it was called with" do
-    result = scope.function_any2array([['one', 'two']])
-    expect(result).to(eq(['one', 'two']))
-  end
-
-  it "should return members of a hash it was called with" do
-    result = scope.function_any2array([{ 'key' => 'value' }])
-    expect(result).to(eq(['key', 'value']))
-  end
-
-  it "should return an empty array if it was called with an empty hash" do
-    result = scope.function_any2array([{ }])
-    expect(result).to(eq([]))
-  end
+describe "any2array" do
+  it { is_expected.not_to eq(nil) }
+  it { is_expected.to run.with_params().and_return([]) }
+  it { is_expected.to run.with_params(true).and_return([true]) }
+  it { is_expected.to run.with_params('one').and_return(['one']) }
+  it { is_expected.to run.with_params('one', 'two').and_return(['one', 'two']) }
+  it { is_expected.to run.with_params([]).and_return([]) }
+  it { is_expected.to run.with_params(['one']).and_return(['one']) }
+  it { is_expected.to run.with_params(['one', 'two']).and_return(['one', 'two']) }
+  it { is_expected.to run.with_params({}).and_return([]) }
+  it { is_expected.to run.with_params({ 'key' => 'value' }).and_return(['key', 'value']) }
+  it { is_expected.to run.with_params({ 'key' => 'value' }).and_return(['key', 'value']) }
 end

spec/functions/assert_private_spec.rb

@@ -1,15 +1,7 @@
-#! /usr/bin/env ruby -S rspec
 require 'spec_helper'
 
-describe Puppet::Parser::Functions.function(:assert_private) do
-  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
-
-  subject do
-    function_name = Puppet::Parser::Functions.function(:assert_private)
-    scope.method(function_name)
-  end
-
-  context "when called from inside module" do
+describe 'assert_private' do
+  context 'when called from inside module' do
     it "should not fail" do
       scope.expects(:lookupvar).with('module_name').returns('foo')
       scope.expects(:lookupvar).with('caller_module_name').returns('foo')

spec/functions/base64_spec.rb

@@ -1,34 +1,15 @@
-#! /usr/bin/env ruby -S rspec
-
 require 'spec_helper'
 
-describe "the base64 function" do
-  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
-
-  it "should exist" do
-    expect(Puppet::Parser::Functions.function("base64")).to eq("function_base64")
-  end
-
-  it "should raise a ParseError if there are other than 2 arguments" do
-    expect { scope.function_base64([]) }.to(raise_error(Puppet::ParseError))
-    expect { scope.function_base64(["asdf"]) }.to(raise_error(Puppet::ParseError))
-    expect { scope.function_base64(["asdf","moo","cow"]) }.to(raise_error(Puppet::ParseError))
-  end
-
-  it "should raise a ParseError if argument 1 isn't 'encode' or 'decode'" do
-    expect { scope.function_base64(["bees","astring"]) }.to(raise_error(Puppet::ParseError, /first argument must be one of/))
-  end
-
-  it "should raise a ParseError if argument 2 isn't a string" do
-    expect { scope.function_base64(["encode",["2"]]) }.to(raise_error(Puppet::ParseError, /second argument must be a string/))
-  end
-
-  it "should encode a encoded string" do
-    result = scope.function_base64(["encode",'thestring'])
-    expect(result).to match(/\AdGhlc3RyaW5n\n\Z/)
-  end
-  it "should decode a base64 encoded string" do
-    result = scope.function_base64(["decode",'dGhlc3RyaW5n'])
-    expect(result).to eq('thestring')
-  end
+describe 'base64' do
+  it { is_expected.not_to eq(nil) }
+  it { is_expected.to run.with_params().and_raise_error(Puppet::ParseError) }
+  it { is_expected.to run.with_params("one").and_raise_error(Puppet::ParseError) }
+  it { is_expected.to run.with_params("one", "two", "three").and_raise_error(Puppet::ParseError) }
+  it { is_expected.to run.with_params("one", "two").and_raise_error(Puppet::ParseError, /first argument must be one of/) }
+  it { is_expected.to run.with_params("encode", ["two"]).and_raise_error(Puppet::ParseError, /second argument must be a string/) }
+  it { is_expected.to run.with_params("encode", 2).and_raise_error(Puppet::ParseError, /second argument must be a string/) }
+
+  it { is_expected.to run.with_params("encode", "thestring").and_return("dGhlc3RyaW5n\n") }
+  it { is_expected.to run.with_params("decode", "dGhlc3RyaW5n").and_return("thestring") }
+  it { is_expected.to run.with_params("decode", "dGhlc3RyaW5n\n").and_return("thestring") }
 end

spec/functions/basename_spec.rb

@@ -1,46 +1,13 @@
-#! /usr/bin/env ruby -S rspec
 require 'spec_helper'
 
-describe "the basename function" do
-  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
-
-  it "should exist" do
-    Puppet::Parser::Functions.function("basename").should == "function_basename"
-  end
-
-  it "should raise a ParseError if there is less than 1 argument" do
-    lambda { scope.function_basename([]) }.should( raise_error(Puppet::ParseError))
-  end
-
-  it "should raise a ParseError if there are more than 2 arguments" do
-    lambda { scope.function_basename(['a', 'b', 'c']) }.should( raise_error(Puppet::ParseError))
-  end
-
-  it "should return basename for an absolute path" do
-    result = scope.function_basename(['/path/to/a/file.ext'])
-    result.should(eq('file.ext'))
-  end
-
-  it "should return basename for a relative path" do
-    result = scope.function_basename(['path/to/a/file.ext'])
-    result.should(eq('file.ext'))
-  end
-
-  it "should strip extention when extension specified (absolute path)" do
-    result = scope.function_basename(['/path/to/a/file.ext', '.ext'])
-    result.should(eq('file'))
-  end
-
-  it "should strip extention when extension specified (relative path)" do
-    result = scope.function_basename(['path/to/a/file.ext', '.ext'])
-    result.should(eq('file'))
-  end
-
-  it "should complain about non-string first argument" do
-    lambda { scope.function_basename([[]]) }.should( raise_error(Puppet::ParseError))
-  end
-
-  it "should complain about non-string second argument" do
-    lambda { scope.function_basename(['/path/to/a/file.ext', []]) }.should( raise_error(Puppet::ParseError))
-  end
+describe 'basename' do
+  it { is_expected.not_to eq(nil) }
+  it { is_expected.to run.with_params().and_raise_error(Puppet::ParseError) }
+  it { is_expected.to run.with_params('one', 'two', 'three').and_raise_error(Puppet::ParseError) }
+  it { is_expected.to run.with_params([]).and_raise_error(Puppet::ParseError) }
+  it { is_expected.to run.with_params('/path/to/a/file.ext', []).and_raise_error(Puppet::ParseError) }
+  it { is_expected.to run.with_params('/path/to/a/file.ext').and_return('file.ext') }
+  it { is_expected.to run.with_params('relative_path/to/a/file.ext').and_return('file.ext') }
+  it { is_expected.to run.with_params('/path/to/a/file.ext', '.ext').and_return('file') }
+  it { is_expected.to run.with_params('relative_path/to/a/file.ext', '.ext').and_return('file') }
 end

spec/functions/bool2num_spec.rb

@@ -1,38 +1,14 @@
-#! /usr/bin/env ruby -S rspec
 require 'spec_helper'
 
-describe "the bool2num function" do
-  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+describe 'bool2num' do
+  it { is_expected.not_to eq(nil) }
+  it { is_expected.to run.with_params().and_raise_error(Puppet::ParseError) }
 
-  it "should exist" do
-    expect(Puppet::Parser::Functions.function("bool2num")).to eq("function_bool2num")
+  [ true, 'true', AlsoString.new('true') ].each do |truthy|
+    it { is_expected.to run.with_params(truthy).and_return(1) }
   end
 
-  it "should raise a ParseError if there is less than 1 arguments" do
-    expect { scope.function_bool2num([]) }.to( raise_error(Puppet::ParseError))
-  end
-
-  it "should convert true to 1" do
-    result = scope.function_bool2num([true])
-    expect(result).to(eq(1))
-  end
-
-  it "should convert 'true' to 1" do
-    result = scope.function_bool2num(['true'])
-    result.should(eq(1))
-  end
-
-  it "should convert 'false' to 0" do
-    result = scope.function_bool2num(['false'])
-    expect(result).to(eq(0))
-  end
-
-  it "should accept objects which extend String" do
-    class AlsoString < String
-    end
-
-    value = AlsoString.new('true')
-    result = scope.function_bool2num([value])
-    result.should(eq(1))
+  [ false, 'false', AlsoString.new('false') ].each do |falsey|
+    it { is_expected.to run.with_params(falsey).and_return(0) }
   end
 end