require 'spec_helper'
require 'puppet_spec/compiler'
require 'matchers/resource'

# COPY OF UNIT TEST
class CompilerTestResource
  attr_accessor :builtin, :virtual, :evaluated, :type, :title

  def initialize(type, title)
    @type = type
    @title = title
  end

  def [](attr)
    return nil if (attr == :stage || attr == :alias)
    :main
  end

  def ref
    "#{type.to_s.capitalize}[#{title}]"
  end

  def evaluated?
    @evaluated
  end

  def builtin_type?
    @builtin
  end

  def virtual?
    @virtual
  end

  def class?
    false
  end

  def stage?
    false
  end

  def evaluate
  end

  def file
    "/fake/file/goes/here"
  end

  def line
    "42"
  end

  def resource_type
    self.class
  end
end

describe Puppet::Parser::Compiler do
  include PuppetSpec::Files
  include Matchers::Resource

  def resource(type, title)
    Puppet::Parser::Resource.new(type, title, :scope => @scope)
  end

  let(:environment) { Puppet::Node::Environment.create(:testing, []) }

  before :each do
    # Push me faster, I wanna go back in time!  (Specifically, freeze time
    # across the test since we have a bunch of version == timestamp code
    # hidden away in the implementation and we keep losing the race.)
    # --daniel 2011-04-21
    now = Time.now
    Time.stubs(:now).returns(now)

    @node = Puppet::Node.new("testnode",
                             :facts => Puppet::Node::Facts.new("facts", {}),
                             :environment => environment)
    @known_resource_types = environment.known_resource_types
    @compiler = Puppet::Parser::Compiler.new(@node)
    @scope = Puppet::Parser::Scope.new(@compiler, :source => stub('source'))
    @scope_resource = Puppet::Parser::Resource.new(:file, "/my/file", :scope => @scope)
    @scope.resource = @scope_resource
  end

  # NEW INTEGRATION TEST
  describe "when evaluating collections" do
    it 'matches on container inherited tags' do
      Puppet[:code] = <<-MANIFEST
      class xport_test {
        tag('foo_bar')
        @notify { 'nbr1':
          message => 'explicitly tagged',
          tag => 'foo_bar'
        }

        @notify { 'nbr2':
          message => 'implicitly tagged'
        }

        Notify <| tag == 'foo_bar' |> {
          message => 'overridden'
        }
      }
      include xport_test
      MANIFEST

      catalog = Puppet::Parser::Compiler.compile(Puppet::Node.new("mynode"))

      expect(catalog).to have_resource("Notify[nbr1]").with_parameter(:message, 'overridden')
      expect(catalog).to have_resource("Notify[nbr2]").with_parameter(:message, 'overridden')
    end
  end

  describe "when evaluating node classes" do
    include PuppetSpec::Compiler

    describe "when provided classes in hash format" do
      it 'looks up default parameter values from inherited class (PUP-2532)' do
        catalog = compile_to_catalog(<<-CODE)
          class a {
            Notify { message => "defaulted" }
            include c
            notify { bye: }
          }
          class b { Notify { message => "inherited" } }
          class c inherits b { notify { hi: } }

          include a
          notify {hi_test: message => Notify[hi][message] }
          notify {bye_test: message => Notify[bye][message] }
        CODE

        expect(catalog).to have_resource("Notify[hi_test]").with_parameter(:message, "inherited")
        expect(catalog).to have_resource("Notify[bye_test]").with_parameter(:message, "defaulted")
      end
    end
  end

  context "when converting catalog to resource" do
    it "the same environment is used for compilation as for transformation to resource form" do
        Puppet[:code] = <<-MANIFEST
          notify { 'dummy':
          }
        MANIFEST

      Puppet::Parser::Resource::Catalog.any_instance.expects(:to_resource).with do |catalog|
        Puppet.lookup(:current_environment).name == :production
      end

      Puppet::Parser::Compiler.compile(Puppet::Node.new("mynode"))
    end
  end

  context 'when working with $settings name space' do
    include PuppetSpec::Compiler
    it 'makes $settings::strict available as string' do
      node = Puppet::Node.new("testing")
      catalog = compile_to_catalog(<<-MANIFEST, node)
          notify { 'test': message => $settings::strict == 'warning' }
      MANIFEST
      expect(catalog).to have_resource("Notify[test]").with_parameter(:message, true)
    end

    it 'can return boolean settings as Boolean' do
      node = Puppet::Node.new("testing")
      catalog = compile_to_catalog(<<-MANIFEST, node)
          notify { 'test': message => $settings::storeconfigs == false }
      MANIFEST
      expect(catalog).to have_resource("Notify[test]").with_parameter(:message, true)
    end

    it 'makes all server settings available as $settings::all_local hash' do
      node = Puppet::Node.new("testing")
      catalog = compile_to_catalog(<<-MANIFEST, node)
          notify { 'test': message => $settings::all_local['strict'] == 'warning' }
      MANIFEST
      expect(catalog).to have_resource("Notify[test]").with_parameter(:message, true)
    end

  end

  context 'when working with $server_facts' do
    include PuppetSpec::Compiler

    it '$trusted is available' do
      node = Puppet::Node.new("testing")
      node.add_server_facts({ "server_fact" => "foo" })

      catalog = compile_to_catalog(<<-MANIFEST, node)
          notify { 'test': message => $server_facts[server_fact] }
      MANIFEST

      expect(catalog).to have_resource("Notify[test]").with_parameter(:message, "foo")
    end

    it 'does not allow assignment to $server_facts' do
      node = Puppet::Node.new("testing")
      node.add_server_facts({ "server_fact" => "foo" })

      expect do
        compile_to_catalog(<<-MANIFEST, node)
            $server_facts = 'changed'
            notify { 'test': message => $server_facts == 'changed' }
        MANIFEST
      end.to raise_error(Puppet::PreformattedError, /Attempt to assign to a reserved variable name: '\$server_facts'.*/)
    end
  end

  describe "the compiler when using 4.x language constructs" do
    include PuppetSpec::Compiler

    if Puppet.features.microsoft_windows?
      it "should be able to determine the configuration version from a local version control repository" do
        pending("Bug #14071 about semantics of Puppet::Util::Execute on Windows")
        # This should always work, because we should always be
        # in the puppet repo when we run this.
        version = %x{git rev-parse HEAD}.chomp

        Puppet.settings[:config_version] = 'git rev-parse HEAD'

        compiler = Puppet::Parser::Compiler.new(Puppet::Node.new("testnode"))
        compiler.catalog.version.should == version
      end
    end

    it 'assigns multiple variables from a class' do
      node = Puppet::Node.new("testnodex")
      catalog = compile_to_catalog(<<-PP, node)
      class foo::bar::example($x = 100)  {
        $a = 10
        $c = undef
      }
      include foo::bar::example

      [$a, $x, $c] = Class['foo::bar::example']
      notify{'check_me': message => "$a, $x, -${c}-" }
      PP
      expect(catalog).to have_resource("Notify[check_me]").with_parameter(:message, "10, 100, --")
    end

    it 'errors on attempt to assigns multiple variables from a class when variable does not exist' do
      node = Puppet::Node.new("testnodex")
      expect do
        compile_to_catalog(<<-PP, node)
        class foo::bar::example($x = 100)  {
          $ah = 10
          $c = undef
        }
        include foo::bar::example

        [$a, $x, $c] = Class['foo::bar::example']
        notify{'check_me': message => "$a, $x, -${c}-" }
        PP
      end.to raise_error(/No value for required variable '\$foo::bar::example::a'/)
    end

    it "should not create duplicate resources when a class is referenced both directly and indirectly by the node classifier (4792)" do
      node = Puppet::Node.new("testnodex")
      node.classes = ['foo', 'bar']
      catalog = compile_to_catalog(<<-PP, node)
        class foo
        {
          notify { foo_notify: }
          include bar
        }
        class bar
        {
          notify { bar_notify: }
        }
      PP

      catalog = Puppet::Parser::Compiler.compile(node)

      expect(catalog).to have_resource("Notify[foo_notify]")
      expect(catalog).to have_resource("Notify[bar_notify]")
    end

    it 'applies defaults for defines with qualified names (PUP-2302)' do
      catalog = compile_to_catalog(<<-CODE)
        define my::thing($msg = 'foo') { notify {'check_me': message => $msg } }
        My::Thing { msg => 'evoe' }
        my::thing { 'name': }
      CODE

      expect(catalog).to have_resource("Notify[check_me]").with_parameter(:message, "evoe")
    end

    it 'Applies defaults from dynamic scopes (3x and future with reverted PUP-867)' do
      catalog = compile_to_catalog(<<-CODE)
      class a {
        Notify { message => "defaulted" }
        include b
        notify { bye: }
      }
      class b { notify { hi: } }

      include a
      CODE
      expect(catalog).to have_resource("Notify[hi]").with_parameter(:message, "defaulted")
      expect(catalog).to have_resource("Notify[bye]").with_parameter(:message, "defaulted")
    end

    it 'gets default from inherited class (PUP-867)' do
      catalog = compile_to_catalog(<<-CODE)
      class a {
        Notify { message => "defaulted" }
        include c
        notify { bye: }
      }
      class b { Notify { message => "inherited" } }
      class c inherits b { notify { hi: } }

      include a
      CODE

      expect(catalog).to have_resource("Notify[hi]").with_parameter(:message, "inherited")
      expect(catalog).to have_resource("Notify[bye]").with_parameter(:message, "defaulted")
    end

    it 'looks up default parameter values from inherited class (PUP-2532)' do
      catalog = compile_to_catalog(<<-CODE)
      class a {
        Notify { message => "defaulted" }
        include c
        notify { bye: }
      }
      class b { Notify { message => "inherited" } }
      class c inherits b { notify { hi: } }

      include a
      notify {hi_test: message => Notify[hi][message] }
      notify {bye_test: message => Notify[bye][message] }
      CODE

      expect(catalog).to have_resource("Notify[hi_test]").with_parameter(:message, "inherited")
      expect(catalog).to have_resource("Notify[bye_test]").with_parameter(:message, "defaulted")
    end

    it 'does not allow override of class parameters using a resource override expression' do
      expect do
        compile_to_catalog(<<-CODE)
          Class[a] { x => 2}
        CODE
      end.to raise_error(/Resource Override can only.*got: Class\[a\].*/)
    end

    describe 'when resolving class references' do
      include Matchers::Resource

      { 'string'             => 'myWay',
        'class reference'    => 'Class["myWay"]',
        'resource reference' => 'Resource["class", "myWay"]'
      }.each do |label, code|
        it "allows camel cased class name reference in 'include' using a #{label}" do
          catalog = compile_to_catalog(<<-"PP")
            class myWay {
              notify { 'I did it': message => 'my way'}
            }
            include #{code}
          PP
          expect(catalog).to have_resource("Notify[I did it]")
        end
      end

      describe 'and classname is a Resource Reference' do
        # tested with strict == off since this was once conditional on strict
        # can be removed in a later version.
        before(:each) do
          Puppet[:strict] = :off
        end

        it 'is reported as an error' do
          expect { 
            compile_to_catalog(<<-PP)
              notice Class[ToothFairy]
            PP
          }.to raise_error(/Illegal Class name in class reference. A TypeReference\['ToothFairy'\]-Type cannot be used where a String is expected/)
        end
      end

      it "should not favor local scope (with class included in topscope)" do
        catalog = compile_to_catalog(<<-PP)
          class experiment {
            class baz {
            }
            notify {"x" : require => Class['baz'] }
            notify {"y" : require => Class['experiment::baz'] }
          }
          class baz {
          }
          include baz
          include experiment
          include experiment::baz
        PP

        expect(catalog).to have_resource("Notify[x]").with_parameter(:require, be_resource("Class[Baz]"))
        expect(catalog).to have_resource("Notify[y]").with_parameter(:require, be_resource("Class[Experiment::Baz]"))
      end

      it "should not favor local name scope" do
        expect {
          catalog = compile_to_catalog(<<-PP)
            class experiment {
              class baz {
              }
              notify {"x" : require => Class['baz'] }
              notify {"y" : require => Class['experiment::baz'] }
            }
            class baz {
            }
            include experiment
            include experiment::baz
          PP
        }.to raise_error(/Could not find resource 'Class\[Baz\]' in parameter 'require'/)
      end
    end

    describe "(ticket #13349) when explicitly specifying top scope" do
      ["class {'::bar::baz':}", "include ::bar::baz"].each do |include|
        describe "with #{include}" do
          it "should find the top level class" do
            catalog = compile_to_catalog(<<-MANIFEST)
              class { 'foo::test': }
              class foo::test {
              	#{include}
              }
              class bar::baz {
              	notify { 'good!': }
              }
              class foo::bar::baz {
              	notify { 'bad!': }
              }
            MANIFEST

            expect(catalog).to have_resource("Class[Bar::Baz]")
            expect(catalog).to have_resource("Notify[good!]")
            expect(catalog).not_to have_resource("Class[Foo::Bar::Baz]")
            expect(catalog).not_to have_resource("Notify[bad!]")
          end
        end
      end
    end

    it 'should recompute the version after input files are re-parsed' do
      Puppet[:code] = 'class foo { }'
      first_time = Time.at(1)
      second_time = Time.at(200)
      Time.stubs(:now).returns(first_time)
      node = Puppet::Node.new('mynode')
      expect(Puppet::Parser::Compiler.compile(node).version).to eq(first_time.to_i)
      Time.stubs(:now).returns(second_time)
      expect(Puppet::Parser::Compiler.compile(node).version).to eq(first_time.to_i) # no change because files didn't change
      Puppet[:code] = nil
      expect(Puppet::Parser::Compiler.compile(node).version).to eq(second_time.to_i)
    end

    ['define', 'class', 'node'].each do |thing|
      it "'#{thing}' is not allowed inside evaluated conditional constructs" do
        expect do
          compile_to_catalog(<<-PP)
            if true {
              #{thing} foo {
              }
              notify { decoy: }
            }
          PP
        end.to raise_error(Puppet::Error, /Classes, definitions, and nodes may only appear at toplevel/)
      end

      it "'#{thing}' is not allowed inside un-evaluated conditional constructs" do
        expect do
          compile_to_catalog(<<-PP)
            if false {
              #{thing} foo {
              }
              notify { decoy: }
            }
          PP
        end.to raise_error(Puppet::Error, /Classes, definitions, and nodes may only appear at toplevel/)
      end
    end

    describe "relationships to non existing resources (even with strict==off)" do
      # At some point in the future, this test can be modified to simply ignore the strict flag,
      # but since the current version is a change from being under control of strict, this is now
      # explicit - the standard setting is strict == warning, here setting it to off
      #
      before(:each) do
        Puppet[:strict] = :off
      end

      [ 'before',
        'subscribe',
        'notify',
        'require'].each do |meta_param|
        it "are reported as an error when formed via meta parameter #{meta_param}" do
          expect { 
            compile_to_catalog(<<-PP)
              notify{ x : #{meta_param} => Notify[tooth_fairy] }
            PP
          }.to raise_error(/Could not find resource 'Notify\[tooth_fairy\]' in parameter '#{meta_param}'/)
        end
      end

      it 'is not reported for virtual resources' do
        expect { 
          compile_to_catalog(<<-PP)
            @notify{ x : require => Notify[tooth_fairy] }
          PP
        }.to_not raise_error
      end

      it 'is reported for a realized virtual resources' do
        expect { 
          compile_to_catalog(<<-PP)
            @notify{ x : require => Notify[tooth_fairy] }
            realize(Notify['x'])
          PP
        }.to raise_error(/Could not find resource 'Notify\[tooth_fairy\]' in parameter 'require'/)
      end
    end

    describe "relationships can be formed" do
      def extract_name(ref)
        ref.sub(/File\[(\w+)\]/, '\1')
      end

      def assert_creates_relationships(relationship_code, expectations)
        base_manifest = <<-MANIFEST
          file { [a,b,c]:
            mode => '0644',
          }
          file { [d,e]:
            mode => '0755',
          }
        MANIFEST

        catalog = compile_to_catalog(base_manifest + relationship_code)
        resources = catalog.resources.select { |res| res.type == 'File' }

        actual_relationships, actual_subscriptions = [:before, :notify].map do |relation|
          resources.map do |res|
            dependents = Array(res[relation])
            dependents.map { |ref| [res.title, extract_name(ref)] }
          end.inject(&:concat)
        end

        expect(actual_relationships).to match_array(expectations[:relationships] || [])
        expect(actual_subscriptions).to match_array(expectations[:subscriptions] || [])
      end

      it "of regular type" do
        assert_creates_relationships("File[a] -> File[b]",
          :relationships => [['a','b']])
      end

      it "of subscription type" do
        assert_creates_relationships("File[a] ~> File[b]",
          :subscriptions => [['a', 'b']])
      end

      it "between multiple resources expressed as resource with multiple titles" do
        assert_creates_relationships("File[a,b] -> File[c,d]",
          :relationships => [['a', 'c'],
            ['b', 'c'],
            ['a', 'd'],
            ['b', 'd']])
      end

      it "between collection expressions" do
        assert_creates_relationships("File <| mode == '0644' |> -> File <| mode == '0755' |>",
          :relationships => [['a', 'd'],
            ['b', 'd'],
            ['c', 'd'],
            ['a', 'e'],
            ['b', 'e'],
            ['c', 'e']])
      end

      it "between resources expressed as Strings" do
        assert_creates_relationships("'File[a]' -> 'File[b]'",
          :relationships => [['a', 'b']])
      end

      it "between resources expressed as variables" do
        assert_creates_relationships(<<-MANIFEST, :relationships => [['a', 'b']])
          $var = File[a]
          $var -> File[b]
        MANIFEST

      end

      it "between resources expressed as case statements" do
        assert_creates_relationships(<<-MANIFEST, :relationships => [['s1', 't2']])
          $var = 10
          case $var {
            10: {
              file { s1: }
            }
            12: {
              file { s2: }
            }
          }
          ->
          case $var + 2 {
            10: {
              file { t1: }
            }
            12: {
              file { t2: }
            }
          }
        MANIFEST
      end

      it "using deep access in array" do
        assert_creates_relationships(<<-MANIFEST, :relationships => [['a', 'b']])
          $var = [ [ [ File[a], File[b] ] ] ]
          $var[0][0][0] -> $var[0][0][1]
        MANIFEST

      end

      it "using deep access in hash" do
        assert_creates_relationships(<<-MANIFEST, :relationships => [['a', 'b']])
          $var = {'foo' => {'bar' => {'source' => File[a], 'target' => File[b]}}}
          $var[foo][bar][source] -> $var[foo][bar][target]
        MANIFEST

      end

      it "using resource declarations" do
        assert_creates_relationships("file { l: } -> file { r: }", :relationships => [['l', 'r']])
      end

      it "between entries in a chain of relationships" do
        assert_creates_relationships("File[a] -> File[b] ~> File[c] <- File[d] <~ File[e]",
          :relationships => [['a', 'b'], ['d', 'c']],
          :subscriptions => [['b', 'c'], ['e', 'd']])
      end

      it 'should close the gap created by an intermediate empty set produced by collection' do
        source = "file { [aa, bb]: } [File[a], File[aa]] -> Notify<| tag == 'na' |> ~> [File[b], File[bb]]"
        assert_creates_relationships(source,
          :relationships => [ ],
          :subscriptions => [['a', 'b'],['aa', 'b'],['a', 'bb'], ['aa', 'bb']])
      end

      it 'should close the gap created by empty set followed by empty collection' do
        source = "file { [aa, bb]: } [File[a], File[aa]] -> [] -> Notify<| tag == 'na' |> ~> [File[b], File[bb]]"
        assert_creates_relationships(source,
          :relationships => [ ],
          :subscriptions => [['a', 'b'],['aa', 'b'],['a', 'bb'], ['aa', 'bb']])
      end

      it 'should close the gap created by empty collection surrounded by empty sets' do
        source = "file { [aa, bb]: } [File[a], File[aa]] -> [] -> Notify<| tag == 'na' |> -> [] ~> [File[b], File[bb]]"
        assert_creates_relationships(source,
          :relationships => [ ],
          :subscriptions => [['a', 'b'],['aa', 'b'],['a', 'bb'], ['aa', 'bb']])
      end

      it 'should close the gap created by several intermediate empty sets produced by collection' do
        source = "file { [aa, bb]: } [File[a], File[aa]] -> Notify<| tag == 'na' |> -> Notify<| tag == 'na' |> ~> [File[b], File[bb]]"
        assert_creates_relationships(source,
          :relationships => [ ],
          :subscriptions => [['a', 'b'],['aa', 'b'],['a', 'bb'], ['aa', 'bb']])
      end
    end

    context "when dealing with variable references" do
      it 'an initial underscore in a variable name is ok' do
        catalog = compile_to_catalog(<<-MANIFEST)
          class a { $_a = 10}
          include a
          notify { 'test': message => $a::_a }
        MANIFEST

        expect(catalog).to have_resource("Notify[test]").with_parameter(:message, 10)
      end

      it 'an initial underscore in not ok if elsewhere than last segment' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            class a { $_a = 10}
            include a
            notify { 'test': message => $_a::_a }
          MANIFEST
        end.to raise_error(/Illegal variable name/)
      end

      it 'a missing variable as default value becomes undef' do
        # strict variables not on
        catalog = compile_to_catalog(<<-MANIFEST)
        class a ($b=$x) { notify {test: message=>"yes ${undef == $b}" } }
          include a
        MANIFEST

        expect(catalog).to have_resource("Notify[test]").with_parameter(:message, "yes true")
      end
    end

    context "when dealing with resources (e.g. File) that modifies its name from title" do
      [['', ''],
       ['', '/'],
       ['/', ''],
       ['/', '/']].each do |t, r|
        it "a circular reference can be compiled with endings: title='#{t}' and ref='#{r}'" do
          expect {
            node = Puppet::Node.new("testing")
            compile_to_catalog(<<-"MANIFEST", node)
            file { '/tmp/bazinga.txt#{t}':
              content => 'henrik testing',
              require => File['/tmp/bazinga.txt#{r}']
            }
          MANIFEST
          }.not_to raise_error
        end
      end
    end

    context 'when working with the trusted data hash' do
      context 'and have opted in to hashed_node_data' do
        it 'should make $trusted available' do
          node = Puppet::Node.new("testing")
          node.trusted_data = { "data" => "value" }

          catalog = compile_to_catalog(<<-MANIFEST, node)
            notify { 'test': message => $trusted[data] }
          MANIFEST

          expect(catalog).to have_resource("Notify[test]").with_parameter(:message, "value")
        end

        it 'should not allow assignment to $trusted' do
          node = Puppet::Node.new("testing")
          node.trusted_data = { "data" => "value" }

          expect do
            compile_to_catalog(<<-MANIFEST, node)
              $trusted = 'changed'
              notify { 'test': message => $trusted == 'changed' }
            MANIFEST
          end.to raise_error(Puppet::PreformattedError, /Attempt to assign to a reserved variable name: '\$trusted'/)
        end
      end
    end

    context 'when using typed parameters in definition' do
      it 'accepts type compliant arguments' do
        catalog = compile_to_catalog(<<-MANIFEST)
          define foo(String $x) { }
          foo { 'test': x =>'say friend' }
        MANIFEST
        expect(catalog).to have_resource("Foo[test]").with_parameter(:x, 'say friend')
      end

      it 'accepts undef as the default for an Optional argument' do
        catalog = compile_to_catalog(<<-MANIFEST)
          define foo(Optional[String] $x = undef) {
            notify { "expected": message => $x == undef }
          }
          foo { 'test': }
        MANIFEST
        expect(catalog).to have_resource("Notify[expected]").with_parameter(:message, true)
      end

      it 'accepts anything when parameters are untyped' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
          define foo($a, $b, $c) { }
          foo { 'test': a => String, b=>10, c=>undef }
          MANIFEST
        end.to_not raise_error()
      end

      it 'denies non type compliant arguments' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            define foo(Integer $x) { }
            foo { 'test': x =>'say friend' }
          MANIFEST
        end.to raise_error(/Foo\[test\]: parameter 'x' expects an Integer value, got String/)
      end

      it 'denies undef for a non-optional type' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            define foo(Integer $x) { }
            foo { 'test': x => undef }
          MANIFEST
        end.to raise_error(/Foo\[test\]: parameter 'x' expects an Integer value, got Undef/)
      end

      it 'denies non type compliant default argument' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            define foo(Integer $x = 'pow') { }
            foo { 'test':  }
          MANIFEST
        end.to raise_error(/Foo\[test\]: parameter 'x' expects an Integer value, got String/)
      end

      it 'denies undef as the default for a non-optional type' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            define foo(Integer $x = undef) { }
            foo { 'test':  }
          MANIFEST
        end.to raise_error(/Foo\[test\]: parameter 'x' expects an Integer value, got Undef/)
      end

      it 'accepts a Resource as a Type' do
        catalog = compile_to_catalog(<<-MANIFEST)
          define bar($text) { }
          define foo(Type[Bar] $x) {
            notify { 'test': message => $x[text] }
          }
          bar { 'joke': text => 'knock knock' }
          foo { 'test': x => Bar[joke] }
        MANIFEST
        expect(catalog).to have_resource("Notify[test]").with_parameter(:message, 'knock knock')
      end

      it 'uses infer_set when reporting type mismatch' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            define foo(Struct[{b => Integer, d=>String}] $a) { }
            foo{ bar: a => {b => 5, c => 'stuff'}}
          MANIFEST
        end.to raise_error(/Foo\[bar\]:\s+parameter 'a' expects a value for key 'd'\s+parameter 'a' unrecognized key 'c'/m)
      end
    end

    context 'when using typed parameters in class' do
      it 'accepts type compliant arguments' do
        catalog = compile_to_catalog(<<-MANIFEST)
          class foo(String $x) { }
          class { 'foo': x =>'say friend' }
        MANIFEST
        expect(catalog).to have_resource("Class[Foo]").with_parameter(:x, 'say friend')
      end

      it 'accepts undef as the default for an Optional argument' do
        catalog = compile_to_catalog(<<-MANIFEST)
          class foo(Optional[String] $x = undef) {
            notify { "expected": message => $x == undef }
          }
          class { 'foo': }
        MANIFEST
        expect(catalog).to have_resource("Notify[expected]").with_parameter(:message, true)
      end

      it 'accepts anything when parameters are untyped' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            class foo($a, $b, $c) { }
            class { 'foo': a => String, b=>10, c=>undef }
          MANIFEST
        end.to_not raise_error()
      end

      it 'denies non type compliant arguments' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            class foo(Integer $x) { }
            class { 'foo': x =>'say friend' }
          MANIFEST
        end.to raise_error(/Class\[Foo\]: parameter 'x' expects an Integer value, got String/)
      end

      it 'denies undef for a non-optional type' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            class foo(Integer $x) { }
            class { 'foo': x => undef }
          MANIFEST
        end.to raise_error(/Class\[Foo\]: parameter 'x' expects an Integer value, got Undef/)
      end

      it 'denies non type compliant default argument' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            class foo(Integer $x = 'pow') { }
            class { 'foo':  }
          MANIFEST
        end.to raise_error(/Class\[Foo\]: parameter 'x' expects an Integer value, got String/)
      end

      it 'denies undef as the default for a non-optional type' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            class foo(Integer $x = undef) { }
            class { 'foo':  }
          MANIFEST
        end.to raise_error(/Class\[Foo\]: parameter 'x' expects an Integer value, got Undef/)
      end

      it 'denies a regexp (rich data) argument given to class String parameter (even if later encoding of it is a string)' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            class foo(String $x) { }
            class { 'foo':  x => /I am a regexp and I don't want to be a String/}
          MANIFEST
        end.to raise_error(/Class\[Foo\]: parameter 'x' expects a String value, got Regexp/)
      end

      it 'denies a regexp (rich data) argument given to define String parameter (even if later encoding of it is a string)' do
        expect do
          catalog = compile_to_catalog(<<-MANIFEST)
            define foo(String $x) { }
            foo { 'foo':  x => /I am a regexp and I don't want to be a String/}
          MANIFEST
        end.to raise_error(/Foo\[foo\]: parameter 'x' expects a String value, got Regexp/)
      end

      it 'accepts a Resource as a Type' do
        catalog = compile_to_catalog(<<-MANIFEST)
          define bar($text) { }
          class foo(Type[Bar] $x) {
            notify { 'test': message => $x[text] }
          }
          bar { 'joke': text => 'knock knock' }
          class { 'foo': x => Bar[joke] }
        MANIFEST
        expect(catalog).to have_resource("Notify[test]").with_parameter(:message, 'knock knock')
      end
    end

    context 'when using typed parameters in lambdas' do
      it 'accepts type compliant arguments' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with('value') |String $x| { notify { "$x": } }
        MANIFEST
        expect(catalog).to have_resource("Notify[value]")
      end

      it 'handles an array as a single argument' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with(['value', 'second']) |$x| { notify { "${x[0]} ${x[1]}": } }
        MANIFEST
        expect(catalog).to have_resource("Notify[value second]")
      end

      it 'denies when missing required arguments' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with(1) |$x, $y| { }
          MANIFEST
        end.to raise_error(/Parameter \$y is required but no value was given/m)
      end

      it 'accepts anything when parameters are untyped' do
        catalog = compile_to_catalog(<<-MANIFEST)
          ['value', 1, true, undef].each |$x| { notify { "value: $x": } }
        MANIFEST

        expect(catalog).to have_resource("Notify[value: value]")
        expect(catalog).to have_resource("Notify[value: 1]")
        expect(catalog).to have_resource("Notify[value: true]")
        expect(catalog).to have_resource("Notify[value: ]")
      end

      it 'accepts type-compliant, slurped arguments' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with(1, 2) |Integer *$x| { notify { "${$x[0] + $x[1]}": } }
        MANIFEST
        expect(catalog).to have_resource("Notify[3]")
      end

      it 'denies non-type-compliant arguments' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with(1) |String $x| { }
          MANIFEST
        end.to raise_error(/block parameter 'x' expects a String value, got Integer/m)
      end

      it 'denies non-type-compliant, slurped arguments' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with(1, "hello") |Integer *$x| { }
          MANIFEST
        end.to raise_error(/block parameter 'x' expects an Integer value, got String/m)
      end

      it 'denies non-type-compliant default argument' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with(1) |$x, String $defaulted = 1| { notify { "${$x + $defaulted}": }}
          MANIFEST
        end.to raise_error(/block parameter 'defaulted' expects a String value, got Integer/m)
      end

      it 'raises an error when a default argument value is an incorrect type and there are no arguments passed' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with() |String $defaulted = 1| {}
          MANIFEST
        end.to raise_error(/block parameter 'defaulted' expects a String value, got Integer/m)
      end

      it 'raises an error when the default argument for a slurped parameter is an incorrect type' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with() |String *$defaulted = 1| {}
          MANIFEST
        end.to raise_error(/block parameter 'defaulted' expects a String value, got Integer/m)
      end

      it 'allows using an array as the default slurped value' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with() |String *$defaulted = [hi]| { notify { $defaulted[0]: } }
        MANIFEST

        expect(catalog).to have_resource('Notify[hi]')
      end

      it 'allows using a value of the type as the default slurped value' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with() |String *$defaulted = hi| { notify { $defaulted[0]: } }
        MANIFEST

        expect(catalog).to have_resource('Notify[hi]')
      end

      it 'allows specifying the type of a slurped parameter as an array' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with() |Array[String] *$defaulted = hi| { notify { $defaulted[0]: } }
        MANIFEST

        expect(catalog).to have_resource('Notify[hi]')
      end

      it 'raises an error when the number of default values does not match the parameter\'s size specification' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with() |Array[String, 2] *$defaulted = hi| { }
          MANIFEST
        end.to raise_error(/block expects at least 2 arguments, got 1/m)
      end

      it 'raises an error when the number of passed values does not match the parameter\'s size specification' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with(hi) |Array[String, 2] *$passed| { }
          MANIFEST
        end.to raise_error(/block expects at least 2 arguments, got 1/m)
      end

      it 'matches when the number of arguments passed for a slurp parameter match the size specification' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with(hi, bye) |Array[String, 2] *$passed| {
            $passed.each |$n| { notify { $n: } }
          }
        MANIFEST

        expect(catalog).to have_resource('Notify[hi]')
        expect(catalog).to have_resource('Notify[bye]')
      end

      it 'raises an error when the number of allowed slurp parameters exceeds the size constraint' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with(hi, bye) |Array[String, 1, 1] *$passed| { }
          MANIFEST
        end.to raise_error(/block expects 1 argument, got 2/m)
      end

      it 'allows passing slurped arrays by specifying an array of arrays' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with([hi], [bye]) |Array[Array[String, 1, 1]] *$passed| {
            notify { $passed[0][0]: }
            notify { $passed[1][0]: }
          }
        MANIFEST

        expect(catalog).to have_resource('Notify[hi]')
        expect(catalog).to have_resource('Notify[bye]')
      end

      it 'raises an error when a required argument follows an optional one' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with() |$y = first, $x, Array[String, 1] *$passed = bye| {}
          MANIFEST
        end.to raise_error(/Parameter \$x is required/)
      end

      it 'raises an error when the minimum size of a slurped argument makes it required and it follows an optional argument' do
        expect do
          compile_to_catalog(<<-MANIFEST)
            with() |$x = first, Array[String, 1] *$passed| {}
          MANIFEST
        end.to raise_error(/Parameter \$passed is required/)
      end

      it 'allows slurped arguments with a minimum size of 0 after an optional argument' do
        catalog = compile_to_catalog(<<-MANIFEST)
          with() |$x = first, Array[String, 0] *$passed| {
            notify { $x: }
          }
        MANIFEST

        expect(catalog).to have_resource('Notify[first]')
      end

      it 'accepts a Resource as a Type' do
        catalog = compile_to_catalog(<<-MANIFEST)
          define bar($text) { }
          bar { 'joke': text => 'knock knock' }

          with(Bar[joke]) |Type[Bar] $joke| { notify { "${joke[text]}": } }
        MANIFEST
        expect(catalog).to have_resource("Notify[knock knock]")
      end
    end
  end

  describe "the compiler when handling aliases" do
    include PuppetSpec::Compiler

    def extract_name(ref)
      ref.sub(/.*\[(\w+)\]/, '\1')
    end

    def assert_created_relationships(catalog, type_name, expectations)
      resources = catalog.resources.select { |res| res.type == type_name }

      actual_relationships, actual_subscriptions = [:before, :notify].map do |relation|
        resources.map do |res|
          dependents = Array(res[relation])
          dependents.map { |ref| [res.title, extract_name(ref)] }
        end.inject(&:concat)
      end

      expect(actual_relationships).to match_array(expectations[:relationships] || [])
      expect(actual_subscriptions).to match_array(expectations[:subscriptions] || [])
    end

    it 'allows a relationship to be formed using metaparam relationship' do
      node = Puppet::Node.new("testnodex")
      catalog = compile_to_catalog(<<-PP, node)
        notify { 'actual_2':  before => 'Notify[alias_1]' }
        notify { 'actual_1': alias => 'alias_1' }
      PP
      assert_created_relationships(catalog, 'Notify', { :relationships => [['actual_2', 'alias_1']] })
    end

    it 'allows a relationship to be formed using -> operator and alias' do
      node = Puppet::Node.new("testnodex")
      catalog = compile_to_catalog(<<-PP, node)
        notify { 'actual_2':  }
        notify { 'actual_1': alias => 'alias_1' }
        Notify[actual_2] -> Notify[alias_1]
      PP
      assert_created_relationships(catalog, 'Notify', { :relationships => [['actual_2', 'alias_1']] })
    end

    it 'errors when an alias cannot be found when relationship is formed with -> operator' do
      node = Puppet::Node.new("testnodex")
      expect {
        catalog = compile_to_catalog(<<-PP, node)
          notify { 'actual_2':  }
          notify { 'actual_1': alias => 'alias_1' }
          Notify[actual_2] -> Notify[alias_2]
        PP
      }.to raise_error(/Could not find resource 'Notify\[alias_2\]'/)
    end
  end

  describe 'the compiler when using collection and override' do
    include PuppetSpec::Compiler

    it 'allows an override when there is a default present' do
      catalog = compile_to_catalog(<<-MANIFEST)
        Package { require => Class['bar'] }
        class bar { }
        class foo {
          package { 'python': }
          package { 'pip': require => Package['python'] }

          Package <| title == 'pip' |> {
            name     => "python-pip",
            category => undef,
          }
        }
        include foo
        include bar
      MANIFEST
      package = catalog.resource('Package', 'pip')
      expect(catalog.resource('Package', 'pip')[:require].to_s).to eql('Package[python]')
    end

  end
end