#
# Author:: Adam Jacob (<adam@chef.io>)
# Author:: Christopher Walters (<cw@chef.io>)
# Author:: Tim Hinderliter (<tim@chef.io>)
# Author:: Seth Chisamore (<schisamo@chef.io>)
# Copyright:: Copyright 2008-2018, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require "spec_helper"

describe Chef::Resource do
  let(:cookbook_repo_path) { File.join(CHEF_SPEC_DATA, "cookbooks") }
  let(:cookbook_collection) { Chef::CookbookCollection.new(Chef::CookbookLoader.new(cookbook_repo_path)) }
  let(:node) { Chef::Node.new }
  let(:events) { Chef::EventDispatch::Dispatcher.new }
  let(:run_context) { Chef::RunContext.new(node, cookbook_collection, events) }
  let(:resource) { resource_class.new("funk", run_context) }
  let(:resource_class) { Chef::Resource }

  it "should mixin shell_out" do
    expect(resource.respond_to?(:shell_out)).to be true
  end

  it "should mixin shell_out!" do
    expect(resource.respond_to?(:shell_out!)).to be true
  end

  describe "when inherited" do

    it "adds an entry to a list of subclasses" do
      subclass = Class.new(Chef::Resource)
      expect(Chef::Resource.resource_classes).to include(subclass)
    end

    it "keeps track of subclasses of subclasses" do
      subclass = Class.new(Chef::Resource)
      subclass_of_subclass = Class.new(subclass)
      expect(Chef::Resource.resource_classes).to include(subclass_of_subclass)
    end

  end

  describe "when declaring the identity attribute" do
    it "has :name as identity attribute by default" do
      expect(Chef::Resource.identity_attr).to eq(:name)
    end

    it "sets an identity attribute" do
      resource_class = Class.new(Chef::Resource)
      resource_class.identity_attr(:path)
      expect(resource_class.identity_attr).to eq(:path)
    end

    it "inherits an identity attribute from a superclass" do
      resource_class = Class.new(Chef::Resource)
      resource_subclass = Class.new(resource_class)
      resource_class.identity_attr(:package_name)
      expect(resource_subclass.identity_attr).to eq(:package_name)
    end

    it "overrides the identity attribute from a superclass when the identity attr is set" do
      resource_class = Class.new(Chef::Resource)
      resource_subclass = Class.new(resource_class)
      resource_class.identity_attr(:package_name)
      resource_subclass.identity_attr(:something_else)
      expect(resource_subclass.identity_attr).to eq(:something_else)
    end
  end

  describe "when no identity attribute has been declared" do
    let(:resource_sans_id) { Chef::Resource.new("my-name") }

    # Would rather force identity attributes to be set for everything,
    # but that's not plausible for back compat reasons.
    it "uses the name as the identity" do
      expect(resource_sans_id.identity).to eq("my-name")
    end
  end

  describe "when an identity attribute has been declared" do
    let(:file_resource) do
      file_resource_class = Class.new(Chef::Resource) do
        identity_attr :path
        attr_accessor :path
      end

      file_resource = file_resource_class.new("identity-attr-test")
      file_resource.path = "/tmp/foo.txt"
      file_resource
    end

    it "gives the value of its identity attribute" do
      expect(file_resource.identity).to eq("/tmp/foo.txt")
    end
  end

  describe "when declaring state attributes" do
    it "has no state_attrs by default" do
      expect(Chef::Resource.state_attrs).to be_empty
    end

    it "sets a list of state attributes" do
      resource_class = Class.new(Chef::Resource)
      resource_class.state_attrs(:checksum, :owner, :group, :mode)
      expect(resource_class.state_attrs).to match_array(%i{checksum owner group mode})
    end

    it "inherits state attributes from the superclass" do
      resource_class = Class.new(Chef::Resource)
      resource_subclass = Class.new(resource_class)
      resource_class.state_attrs(:checksum, :owner, :group, :mode)
      expect(resource_subclass.state_attrs).to match_array(%i{checksum owner group mode})
    end

    it "combines inherited state attributes with non-inherited state attributes" do
      resource_class = Class.new(Chef::Resource)
      resource_subclass = Class.new(resource_class)
      resource_class.state_attrs(:checksum, :owner)
      resource_subclass.state_attrs(:group, :mode)
      expect(resource_subclass.state_attrs).to match_array(%i{checksum owner group mode})
    end

  end

  describe "when a set of state attributes has been declared" do
    let(:file_resource) do
      file_resource_class = Class.new(Chef::Resource) do

        state_attrs :checksum, :owner, :group, :mode

        attr_accessor :checksum
        attr_accessor :owner
        attr_accessor :group
        attr_accessor :mode
      end

      file_resource = file_resource_class.new("describe-state-test")
      file_resource.checksum = "abc123"
      file_resource.owner = "root"
      file_resource.group = "wheel"
      file_resource.mode = "0644"
      file_resource
    end

    it "describes its state" do
      resource_state = file_resource.state_for_resource_reporter
      expect(resource_state.keys).to match_array(%i{checksum owner group mode})
      expect(resource_state[:checksum]).to eq("abc123")
      expect(resource_state[:owner]).to eq("root")
      expect(resource_state[:group]).to eq("wheel")
      expect(resource_state[:mode]).to eq("0644")
    end
  end

  describe "#state_for_resource_reporter" do
    context "when a property is marked as sensitive" do
      it "suppresses the sensitive property's value" do
        resource_class = Class.new(Chef::Resource) { property :foo, String, sensitive: true }
        resource = resource_class.new("sensitive_property_tests")
        resource.foo = "some value"
        expect(resource.state_for_resource_reporter[:foo]).to eq("*sensitive value suppressed*")
      end
    end

    context "when a property is not marked as sensitive" do
      it "does not suppress the property's value" do
        resource_class = Class.new(Chef::Resource) { property :foo, String }
        resource = resource_class.new("sensitive_property_tests")
        resource.foo = "some value"
        expect(resource.state_for_resource_reporter[:foo]).to eq("some value")
      end
    end
  end

  describe "load_from" do
    let(:prior_resource) do
      prior_resource = Chef::Resource.new("funk")
      prior_resource.source_line
      prior_resource.allowed_actions << :funkytown
      prior_resource.action(:funkytown)
      prior_resource
    end
    before(:each) do
      resource.allowed_actions << :funkytown
      run_context.resource_collection << prior_resource
    end

    it "should load the attributes of a prior resource" do
      resource.load_from(prior_resource)
    end

    it "should not inherit the action from the prior resource" do
      resource.load_from(prior_resource)
      expect(resource.action).not_to eq(prior_resource.action)
    end
  end

  describe "name" do
    it "should have a name" do
      expect(resource.name).to eql("funk")
    end

    it "should let you set a new name" do
      resource.name "monkey"
      expect(resource.name).to eql("monkey")
    end

    it "coerces arrays to names" do
      expect(resource.name %w{a b}).to eql("a, b")
    end

    it "should coerce objects to a string" do
      expect(resource.name Object.new).to be_a(String)
    end
  end

  describe "notifies" do
    it "should make notified resources appear in the actions hash" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("coffee")
      resource.notifies :reload, run_context.resource_collection.find(zen_master: "coffee")
      expect(resource.delayed_notifications.detect { |e| e.resource.name == "coffee" && e.action == :reload }).not_to be_nil
    end

    it "should make notified resources be capable of acting immediately" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("coffee")
      resource.notifies :reload, run_context.resource_collection.find(zen_master: "coffee"), :immediate
      expect(resource.immediate_notifications.detect { |e| e.resource.name == "coffee" && e.action == :reload }).not_to be_nil
    end

    it "should raise an exception if told to act in other than :delay or :immediate(ly)" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("coffee")
      expect do
        resource.notifies :reload, run_context.resource_collection.find(zen_master: "coffee"), :someday
      end.to raise_error(ArgumentError)
    end

    it "should allow multiple notified resources appear in the actions hash" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("coffee")
      resource.notifies :reload, run_context.resource_collection.find(zen_master: "coffee")
      expect(resource.delayed_notifications.detect { |e| e.resource.name == "coffee" && e.action == :reload }).not_to be_nil

      run_context.resource_collection << Chef::Resource::ZenMaster.new("beans")
      resource.notifies :reload, run_context.resource_collection.find(zen_master: "beans")
      expect(resource.delayed_notifications.detect { |e| e.resource.name == "beans" && e.action == :reload }).not_to be_nil
    end

    it "creates a notification for a resource that is not yet in the resource collection" do
      resource.notifies(:restart, service: "apache")
      expected_notification = Chef::Resource::Notification.new({ service: "apache" }, :restart, resource)
      expect(resource.delayed_notifications).to include(expected_notification)
    end

    it "notifies another resource immediately" do
      resource.notifies_immediately(:restart, service: "apache")
      expected_notification = Chef::Resource::Notification.new({ service: "apache" }, :restart, resource)
      expect(resource.immediate_notifications).to include(expected_notification)
    end

    it "notifies a resource to take action at the end of the chef run" do
      resource.notifies_delayed(:restart, service: "apache")
      expected_notification = Chef::Resource::Notification.new({ service: "apache" }, :restart, resource)
      expect(resource.delayed_notifications).to include(expected_notification)
    end

    it "notifies a resource with an array for its name via its prettified string name" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new(%w{coffee tea})
      resource.notifies :reload, run_context.resource_collection.find(zen_master: "coffee, tea")
      expect(resource.delayed_notifications.detect { |e| e.resource.name == "coffee, tea" && e.action == :reload }).not_to be_nil
    end

    it "notifies a resource without a name via a string name with brackets" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("")
      resource.notifies :reload, "zen_master[]"
    end

    it "notifies a resource without a name via a string name without brackets" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("")
      resource.notifies :reload, "zen_master"
      expect(resource.delayed_notifications.first.resource).to eql("zen_master")
    end

    it "notifies a resource without a name via a hash name with an empty string" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("")
      resource.notifies :reload, zen_master: ""
      expect(resource.delayed_notifications.first.resource).to eql(zen_master: "")
    end
  end

  describe "subscribes" do
    it "should make resources appear in the actions hash of subscribed nodes" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("coffee")
      zr = run_context.resource_collection.find(zen_master: "coffee")
      resource.subscribes :reload, zr
      expect(zr.delayed_notifications.detect { |e| e.resource.name == "funk" && e.action == :reload }).not_to be_nil
    end

    it "should make resources appear in the actions hash of subscribed nodes" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("coffee")
      zr = run_context.resource_collection.find(zen_master: "coffee")
      resource.subscribes :reload, zr
      expect(zr.delayed_notifications.detect { |e| e.resource.name == resource.name && e.action == :reload }).not_to be_nil

      run_context.resource_collection << Chef::Resource::ZenMaster.new("bean")
      zrb = run_context.resource_collection.find(zen_master: "bean")
      zrb.subscribes :reload, zr
      expect(zr.delayed_notifications.detect { |e| e.resource.name == resource.name && e.action == :reload }).not_to be_nil
    end

    it "should make subscribed resources be capable of acting immediately" do
      run_context.resource_collection << Chef::Resource::ZenMaster.new("coffee")
      zr = run_context.resource_collection.find(zen_master: "coffee")
      resource.subscribes :reload, zr, :immediately
      expect(zr.immediate_notifications.detect { |e| e.resource.name == resource.name && e.action == :reload }).not_to be_nil
    end
  end

  describe "defined_at" do
    it "should correctly parse source_line on unix-like operating systems" do
      resource.source_line = "/some/path/to/file.rb:80:in `wombat_tears'"
      expect(resource.defined_at).to eq("/some/path/to/file.rb line 80")
    end

    it "should correctly parse source_line on Windows" do
      resource.source_line = "C:/some/path/to/file.rb:80 in 1`wombat_tears'"
      expect(resource.defined_at).to eq("C:/some/path/to/file.rb line 80")
    end

    it "should include the cookbook and recipe when it knows it" do
      resource.source_line = "/some/path/to/file.rb:80:in `wombat_tears'"
      resource.recipe_name = "wombats"
      resource.cookbook_name = "animals"
      expect(resource.defined_at).to eq("animals::wombats line 80")
    end

    it "should recognize dynamically defined resources" do
      expect(resource.defined_at).to eq("dynamically defined")
    end
  end

  describe "to_s" do
    it "should become a string like resource_name[name]" do
      zm = Chef::Resource::ZenMaster.new("coffee")
      expect(zm.to_s).to eql("zen_master[coffee]")
    end
  end

  describe "to_text" do
    it "prints nice message" do
      resource_class = Class.new(Chef::Resource) { property :foo, String }
      resource = resource_class.new("sensitive_property_tests")
      resource.foo = "some value"
      expect(resource.to_text).to match(/foo "some value"/)
    end

    context "when property is sensitive" do
      it "supresses that properties value" do
        resource_class = Class.new(Chef::Resource) { property :foo, String, sensitive: true }
        resource = resource_class.new("sensitive_property_tests")
        resource.foo = "some value"
        expect(resource.to_text).to match(/foo "\*sensitive value suppressed\*"/)
      end
    end

    context "when property is required" do
      it "does not propagate vailidation errors" do
        resource_class = Class.new(Chef::Resource) { property :foo, String, required: true }
        resource = resource_class.new("required_property_tests")
        expect { resource.to_text }.to_not raise_error Chef::Exceptions::ValidationFailed
      end
    end
  end

  context "Documentation of resources" do
    it "can have a description" do
      c = Class.new(Chef::Resource) do
        description "my description"
      end
      expect(c.description).to eq "my description"
    end

    it "can say when it was introduced" do
      c = Class.new(Chef::Resource) do
        introduced "14.0"
      end
      expect(c.introduced).to eq "14.0"
    end

    it "can have some examples" do
      c = Class.new(Chef::Resource) do
        examples <<~EOH
          resource "foo" do
            foo foo
          end
        EOH
      end
      expect(c.examples).to eq <<~EOH
        resource "foo" do
          foo foo
        end
      EOH
    end
  end

  describe "self.resource_name" do
    context "When resource_name is not set" do
      it "and there are no provides lines, resource_name is nil" do
        c = Class.new(Chef::Resource) do
        end

        r = c.new("hi")
        r.declared_type = :d
        expect(c.resource_name).to be_nil
        expect(r.resource_name).to be_nil
        expect(r.declared_type).to eq :d
      end

      it "and there are no provides lines, resource_name is used" do
        c = Class.new(Chef::Resource) do
          def initialize(*args, &block)
            @resource_name = :blah
            super
          end
        end

        r = c.new("hi")
        r.declared_type = :d
        expect(c.resource_name).to be_nil
        expect(r.resource_name).to eq :blah
        expect(r.declared_type).to eq :d
      end

      it "and the resource class gets a late-bound name, resource_name is nil" do
        c = Class.new(Chef::Resource) do
          def self.name
            "ResourceSpecNameTest"
          end
        end

        r = c.new("hi")
        r.declared_type = :d
        expect(c.resource_name).to be_nil
        expect(r.resource_name).to be_nil
        expect(r.declared_type).to eq :d
      end
    end

    it "resource_name without provides is honored" do
      c = Class.new(Chef::Resource) do
        resource_name "blah"
      end

      r = c.new("hi")
      r.declared_type = :d
      expect(c.resource_name).to eq :blah
      expect(r.resource_name).to eq :blah
      expect(r.declared_type).to eq :d
    end
    it "setting class.resource_name with 'resource_name = blah' overrides declared_type" do
      c = Class.new(Chef::Resource) do
        provides :self_resource_name_test_2
      end
      c.resource_name = :blah

      r = c.new("hi")
      r.declared_type = :d
      expect(c.resource_name).to eq :blah
      expect(r.resource_name).to eq :blah
      expect(r.declared_type).to eq :d
    end
    it "setting class.resource_name with 'resource_name blah' overrides declared_type" do
      c = Class.new(Chef::Resource) do
        resource_name :blah
        provides :self_resource_name_test_3
      end

      r = c.new("hi")
      r.declared_type = :d
      expect(c.resource_name).to eq :blah
      expect(r.resource_name).to eq :blah
      expect(r.declared_type).to eq :d
    end
  end

  describe "to_json" do
    it "should serialize to json" do
      json = resource.to_json
      expect(json).to match(/json_class/)
      expect(json).to match(/instance_vars/)
    end

    include_examples "to_json equivalent to Chef::JSONCompat.to_json" do
      let(:jsonable) { resource }
    end
  end

  describe "to_hash" do
    context "when the resource has a property with a default" do
      let(:resource_class) { Class.new(Chef::Resource) { property :a, default: 1 } }
      it "should include the default in the hash" do
        expect(resource.to_hash.keys.sort).to eq(%i{a allowed_actions params provider updated
          updated_by_last_action before
          name source_line
          action elapsed_time
          default_guard_interpreter guard_interpreter}.sort)
        expect(resource.to_hash[:name]).to eq "funk"
        expect(resource.to_hash[:a]).to eq 1
      end
    end

    it "should convert to a hash" do
      hash = resource.to_hash
      expected_keys = %i{allowed_actions params provider updated
        updated_by_last_action before
        name source_line
        action elapsed_time
        default_guard_interpreter guard_interpreter}
      expect(hash.keys - expected_keys).to eq([])
      expect(expected_keys - hash.keys).to eq([])
      expect(hash[:name]).to eql("funk")
    end
  end

  describe "self.json_create" do
    it "should deserialize itself from json" do
      json = Chef::JSONCompat.to_json(resource)
      serialized_node = Chef::Resource.from_json(json)
      expect(serialized_node).to be_a_kind_of(Chef::Resource)
      expect(serialized_node.name).to eql(resource.name)
    end
  end

  describe "ignore_failure" do
    it "should default to throwing an error if a provider fails for a resource" do
      expect(resource.ignore_failure).to eq(false)
    end

    it "should allow you to set whether a provider should throw exceptions with ignore_failure" do
      resource.ignore_failure(true)
      expect(resource.ignore_failure).to eq(true)
    end

    it "should allow you to set quiet ignore_failure as a symbol" do
      resource.ignore_failure(:quiet)
      expect(resource.ignore_failure).to eq(:quiet)
    end

    it "should allow you to set quiet ignore_failure as a string" do
      resource.ignore_failure("quiet")
      expect(resource.ignore_failure).to eq("quiet")
    end
  end

  describe "retries" do
    let(:retriable_resource) do
      retriable_resource = Chef::Resource::Cat.new("precious", run_context)
      retriable_resource.provider = Chef::Provider::SnakeOil
      retriable_resource.action = :purr
      retriable_resource
    end

    before do
      node.automatic_attrs[:platform] = "fubuntu"
      node.automatic_attrs[:platform_version] = "10.04"
    end

    it "should default to not retrying if a provider fails for a resource" do
      expect(retriable_resource.retries).to eq(0)
    end

    it "should allow you to set how many retries a provider should attempt after a failure" do
      retriable_resource.retries(2)
      expect(retriable_resource.retries).to eq(2)
    end

    it "should default to a retry delay of 2 seconds" do
      expect(retriable_resource.retry_delay).to eq(2)
    end

    it "should allow you to set the retry delay" do
      retriable_resource.retry_delay(10)
      expect(retriable_resource.retry_delay).to eq(10)
    end

    it "should keep given value of retries intact after the provider fails for a resource" do
      retriable_resource.retries(3)
      retriable_resource.retry_delay(0) # No need to wait.

      provider = Chef::Provider::SnakeOil.new(retriable_resource, run_context)
      allow(Chef::Provider::SnakeOil).to receive(:new).and_return(provider)
      allow(provider).to receive(:action_purr).and_raise

      expect(retriable_resource).to receive(:sleep).exactly(3).times
      expect { retriable_resource.run_action(:purr) }.to raise_error(RuntimeError)
      expect(retriable_resource.retries).to eq(3)
    end

    it "should not rescue from non-StandardError exceptions" do
      retriable_resource.retries(3)
      retriable_resource.retry_delay(0) # No need to wait.

      provider = Chef::Provider::SnakeOil.new(retriable_resource, run_context)
      allow(Chef::Provider::SnakeOil).to receive(:new).and_return(provider)
      allow(provider).to receive(:action_purr).and_raise(LoadError)

      expect(retriable_resource).not_to receive(:sleep)
      expect { retriable_resource.run_action(:purr) }.to raise_error(LoadError)
    end
  end

  it "runs an action by finding its provider, loading the current resource and then running the action" do
    skip
  end

  describe "when updated by a provider" do
    before do
      resource.updated_by_last_action(true)
    end

    it "records that it was updated" do
      expect(resource).to be_updated
    end

    it "records that the last action updated the resource" do
      expect(resource).to be_updated_by_last_action
    end

    describe "and then run again without being updated" do
      before do
        resource.updated_by_last_action(false)
      end

      it "reports that it is updated" do
        expect(resource).to be_updated
      end

      it "reports that it was not updated by the last action" do
        expect(resource).not_to be_updated_by_last_action
      end

    end

  end

  describe "when invoking its action" do
    let(:resource) do
      resource = Chef::Resource.new("provided", run_context)
      resource.provider = Chef::Provider::SnakeOil
      resource
    end
    before do
      node.automatic_attrs[:platform] = "fubuntu"
      node.automatic_attrs[:platform_version] = "10.04"
    end

    it "does not run only_if if no only_if command is given" do
      expect_any_instance_of(Chef::Resource::Conditional).not_to receive(:evaluate)
      resource.only_if.clear
      resource.run_action(:purr)
    end

    it "runs runs an only_if when one is given" do
      snitch_variable = nil
      resource.only_if { snitch_variable = true }
      expect(resource.only_if.first.positivity).to eq(:only_if)
      # Chef::Mixin::Command.should_receive(:only_if).with(true, {}).and_return(false)
      resource.run_action(:purr)
      expect(snitch_variable).to be_truthy
    end

    it "runs multiple only_if conditionals" do
      snitch_var1, snitch_var2 = nil, nil
      resource.only_if { snitch_var1 = 1 }
      resource.only_if { snitch_var2 = 2 }
      resource.run_action(:purr)
      expect(snitch_var1).to eq(1)
      expect(snitch_var2).to eq(2)
    end

    it "accepts command options for only_if conditionals" do
      expect_any_instance_of(Chef::Resource::Conditional).to receive(:evaluate_command).at_least(1).times
      resource.only_if("true", cwd: "/tmp")
      expect(resource.only_if.first.command_opts).to eq({ cwd: "/tmp" })
      resource.run_action(:purr)
    end

    it "runs not_if as a command when it is a string" do
      expect_any_instance_of(Chef::Resource::Conditional).to receive(:evaluate_command).at_least(1).times
      resource.not_if "pwd"
      resource.run_action(:purr)
    end

    it "runs not_if as a block when it is a ruby block" do
      expect_any_instance_of(Chef::Resource::Conditional).to receive(:evaluate_block).at_least(1).times
      resource.not_if { puts "foo" }
      resource.run_action(:purr)
    end

    it "does not run not_if if no not_if command is given" do
      expect_any_instance_of(Chef::Resource::Conditional).not_to receive(:evaluate)
      resource.not_if.clear
      resource.run_action(:purr)
    end

    it "accepts command options for not_if conditionals" do
      resource.not_if("pwd" , cwd: "/tmp")
      expect(resource.not_if.first.command_opts).to eq({ cwd: "/tmp" })
    end

    it "accepts multiple not_if conditionals" do
      snitch_var1, snitch_var2 = true, true
      resource.not_if { snitch_var1 = nil }
      resource.not_if { snitch_var2 = false }
      resource.run_action(:purr)
      expect(snitch_var1).to be_nil
      expect(snitch_var2).to be_falsey
    end

    it "reports 0 elapsed time if actual elapsed time is < 0" do
      expected = Time.now
      allow(Time).to receive(:now).and_return(expected, expected - 1)
      resource.run_action(:purr)
      expect(resource.elapsed_time).to eq(0)
    end

    describe "guard_interpreter attribute" do
      it "should be set to :default by default" do
        expect(resource.guard_interpreter).to eq(:default)
      end

      it "if set to :default should return :default when read" do
        resource.guard_interpreter(:default)
        expect(resource.guard_interpreter).to eq(:default)
      end

      it "should raise Chef::Exceptions::ValidationFailed on an attempt to set the guard_interpreter attribute to something other than a Symbol" do
        expect { resource.guard_interpreter("command_dot_com") }.to raise_error(Chef::Exceptions::ValidationFailed)
      end

      it "should not raise an exception when setting the guard interpreter attribute to a Symbol" do
        allow(Chef::GuardInterpreter::ResourceGuardInterpreter).to receive(:new).and_return(nil)
        expect { resource.guard_interpreter(:command_dot_com) }.not_to raise_error
      end
    end
  end

  describe "should_skip?" do
    before do
      resource = Chef::Resource::Cat.new("sugar", run_context)
    end

    it "should return false by default" do
      expect(resource.should_skip?(:purr)).to be_falsey
    end

    it "should return false when only_if is met" do
      resource.only_if { true }
      expect(resource.should_skip?(:purr)).to be_falsey
    end

    it "should return true when only_if is not met" do
      resource.only_if { false }
      expect(resource.should_skip?(:purr)).to be_truthy
    end

    it "should return true when not_if is met" do
      resource.not_if { true }
      expect(resource.should_skip?(:purr)).to be_truthy
    end

    it "should return false when not_if is not met" do
      resource.not_if { false }
      expect(resource.should_skip?(:purr)).to be_falsey
    end

    it "should return true when only_if is met but also not_if is met" do
      resource.only_if { true }
      resource.not_if { true }
      expect(resource.should_skip?(:purr)).to be_truthy
    end

    it "should return false when only_if is met and also not_if is not met" do
      resource.only_if { true }
      resource.not_if { false }
      expect(resource.should_skip?(:purr)).to be_falsey
    end

    it "should return true when one of multiple only_if's is not met" do
      resource.only_if { true }
      resource.only_if { false }
      resource.only_if { true }
      expect(resource.should_skip?(:purr)).to be_truthy
    end

    it "should return true when one of multiple not_if's is met" do
      resource.not_if { false }
      resource.not_if { true }
      resource.not_if { false }
      expect(resource.should_skip?(:purr)).to be_truthy
    end

    it "should return false when all of multiple only_if's are met" do
      resource.only_if { true }
      resource.only_if { true }
      resource.only_if { true }
      expect(resource.should_skip?(:purr)).to be_falsey
    end

    it "should return false when all of multiple not_if's are not met" do
      resource.not_if { false }
      resource.not_if { false }
      resource.not_if { false }
      expect(resource.should_skip?(:purr)).to be_falsey
    end

    it "should return true when action is :nothing" do
      expect(resource.should_skip?(:nothing)).to be_truthy
    end

    it "should return true when action is :nothing ignoring only_if/not_if conditionals" do
      resource.only_if { true }
      resource.not_if { false }
      expect(resource.should_skip?(:nothing)).to be_truthy
    end

    it "should print \"skipped due to action :nothing\" message for doc formatter when action is :nothing" do
      fdoc = Chef::Formatters.new(:doc, STDOUT, STDERR)
      allow(run_context).to receive(:events).and_return(fdoc)
      expect(fdoc).to receive(:puts).with(" (skipped due to action :nothing)", anything)
      resource.should_skip?(:nothing)
    end

  end

  describe "when resource action is :nothing" do
    let(:resource1) do
      resource1 = Chef::Resource::Cat.new("sugar", run_context)
      resource1.action = :nothing
      resource1
    end
    before do
      node.automatic_attrs[:platform] = "fubuntu"
      node.automatic_attrs[:platform_version] = "10.04"
    end

    it "should not run only_if/not_if conditionals (CHEF-972)" do
      snitch_var1 = 0
      resource1.only_if { snitch_var1 = 1 }
      resource1.not_if { snitch_var1 = 2 }
      resource1.run_action(:nothing)
      expect(snitch_var1).to eq(0)
    end

    it "should run only_if/not_if conditionals when notified to run another action (CHEF-972)" do
      snitch_var1 = snitch_var2 = 0
      runner = Chef::Runner.new(run_context)

      Chef::Provider::SnakeOil.provides :cat

      resource1.only_if { snitch_var1 = 1 }
      resource1.not_if { snitch_var2 = 2 }
      resource2 = Chef::Resource::Cat.new("coffee", run_context)
      resource2.notifies :purr, resource1
      resource2.action = :purr

      run_context.resource_collection << resource1
      run_context.resource_collection << resource2
      runner.converge

      expect(snitch_var1).to eq(1)
      expect(snitch_var2).to eq(2)
    end
  end

  describe "building the platform map" do

    let(:klz) { Class.new(Chef::Resource) }

    before do
      Chef::Resource::Klz = klz
    end

    after do
      Chef::Resource.send(:remove_const, :Klz)
    end

    it "adds mappings for a single platform" do
      expect(Chef.resource_handler_map).to receive(:set).with(
        :dinobot, Chef::Resource::Klz, { platform: ["autobots"] }
      )
      klz.provides :dinobot, platform: ["autobots"]
    end

    it "adds mappings for multiple platforms" do
      expect(Chef.resource_handler_map).to receive(:set).with(
        :energy, Chef::Resource::Klz, { platform: %w{autobots decepticons} }
      )
      klz.provides :energy, platform: %w{autobots decepticons}
    end

    it "adds mappings for all platforms" do
      expect(Chef.resource_handler_map).to receive(:set).with(
        :tape_deck, Chef::Resource::Klz, {}
      )
      klz.provides :tape_deck
    end

  end

  describe "resource_for_node" do
    describe "lookups from the platform map" do
      let(:klz1) { Class.new(Chef::Resource) }

      before(:each) do
        Chef::Resource::Klz1 = klz1
        node = Chef::Node.new
        node.name("bumblebee")
        node.automatic[:platform] = "autobots"
        node.automatic[:platform_version] = "6.1"
        Object.const_set("Soundwave", klz1)
        klz1.provides :soundwave
      end

      after(:each) do
        Object.send(:remove_const, :Soundwave)
        Chef::Resource.send(:remove_const, :Klz1)
      end

      it "returns a resource by short_name if nothing else matches" do
        expect(Chef::Resource.resource_for_node(:soundwave, node)).to eql(klz1)
      end
    end

    describe "lookups from the platform map" do
      let(:klz2) { Class.new(Chef::Resource) }

      before(:each) do
        Chef::Resource::Klz2 = klz2
        node.name("bumblebee")
        node.automatic[:platform] = "autobots"
        node.automatic[:platform_version] = "6.1"
        klz2.provides :dinobot, platform: ["autobots"]
        Object.const_set("Grimlock", klz2)
        klz2.provides :grimlock
      end

      after(:each) do
        Object.send(:remove_const, :Grimlock)
        Chef::Resource.send(:remove_const, :Klz2)
      end

      it "returns a resource by short_name and node" do
        expect(Chef::Resource.resource_for_node(:dinobot, node)).to eql(klz2)
      end
    end

    describe "chef_version constraints and the platform map" do
      let(:klz3) { Class.new(Chef::Resource) }

      it "doesn't wire up the provides when chef_version is < 1" do
        klz3.provides :bulbasaur, chef_version: "< 1.0"  # this should be false
        expect { Chef::Resource.resource_for_node(:bulbasaur, node) }.to raise_error(Chef::Exceptions::NoSuchResourceType)
      end

      it "wires up the provides when chef_version is > 1" do
        klz3.provides :bulbasaur, chef_version: "> 1.0"  # this should be true
        expect(Chef::Resource.resource_for_node(:bulbasaur, node)).to eql(klz3)
      end

      it "wires up the default when chef_version is < 1" do
        klz3.chef_version_for_provides("< 1.0")  # this should be false
        klz3.provides :bulbasaur
        expect { Chef::Resource.resource_for_node(:bulbasaur, node) }.to raise_error(Chef::Exceptions::NoSuchResourceType)
      end

      it "wires up the default when chef_version is > 1" do
        klz3.chef_version_for_provides("> 1.0")  # this should be true
        klz3.provides :bulbasaur
        expect(Chef::Resource.resource_for_node(:bulbasaur, node)).to eql(klz3)
      end
    end

  end

  describe "when creating notifications" do

    describe "with a string resource spec" do

      it "creates a delayed notification when timing is not specified" do
        resource.notifies(:run, "execute[foo]")
        expect(run_context.delayed_notification_collection.size).to eq(1)
      end

      it "creates a delayed notification when :delayed is not specified" do
        resource.notifies(:run, "execute[foo]", :delayed)
        expect(run_context.delayed_notification_collection.size).to eq(1)
      end

      it "creates an immediate notification when :immediate is specified" do
        resource.notifies(:run, "execute[foo]", :immediate)
        expect(run_context.immediate_notification_collection.size).to eq(1)
      end

      it "creates an immediate notification when :immediately is specified" do
        resource.notifies(:run, "execute[foo]", :immediately)
        expect(run_context.immediate_notification_collection.size).to eq(1)
      end

      describe "with a syntax error in the resource spec" do

        it "raises an exception immmediately" do
          expect do
            resource.notifies(:run, "typo[missing-closing-bracket")
          end.to raise_error(Chef::Exceptions::InvalidResourceSpecification)
        end
      end
    end

    describe "with a resource reference" do
      let(:notified_resource) { Chef::Resource.new("punk", run_context) }

      it "creates a delayed notification when timing is not specified" do
        resource.notifies(:run, notified_resource)
        expect(run_context.delayed_notification_collection.size).to eq(1)
      end

      it "creates a delayed notification when :delayed is not specified" do
        resource.notifies(:run, notified_resource, :delayed)
        expect(run_context.delayed_notification_collection.size).to eq(1)
      end

      it "creates an immediate notification when :immediate is specified" do
        resource.notifies(:run, notified_resource, :immediate)
        expect(run_context.immediate_notification_collection.size).to eq(1)
      end

      it "creates an immediate notification when :immediately is specified" do
        resource.notifies(:run, notified_resource, :immediately)
        expect(run_context.immediate_notification_collection.size).to eq(1)
      end
    end

  end

  describe "resource sensitive attribute" do
    let(:resource_file) { Chef::Resource::File.new("/nonexistent/CHEF-5098/file", run_context) }
    let(:action) { :create }

    def compiled_resource_data(resource, action, err)
      error_inspector = Chef::Formatters::ErrorInspectors::ResourceFailureInspector.new(resource, action, err)
      description = Chef::Formatters::ErrorDescription.new("test")
      error_inspector.add_explanation(description)
      Chef::Log.info("descrtiption: #{description.inspect},error_inspector: #{error_inspector}")
      description.sections[1]["Compiled Resource:"]
    end

    it "set to false by default" do
      expect(resource.sensitive).to be_falsey
    end

    it "when set to false should show compiled resource for failed resource" do
      expect { resource_file.run_action(action) }.to raise_error { |err|
        expect(compiled_resource_data(resource_file, action, err)).to match 'path "/nonexistent/CHEF-5098/file"'
      }
    end

    it "when set to true should show compiled resource for failed resource" do
      resource_file.sensitive true
      expect { resource_file.run_action(action) }.to raise_error { |err|
        expect(compiled_resource_data(resource_file, action, err)).to eql("suppressed sensitive resource output")
      }
    end

  end

  describe "#action" do
    let(:resource_class) do
      Class.new(described_class) do
        allowed_actions(%i{one two})
      end
    end
    let(:resource) { resource_class.new("test", nil) }
    subject { resource.action }

    context "with a no action" do
      it { is_expected.to eq [:nothing] }
    end

    context "with a default action" do
      let(:resource_class) do
        Class.new(described_class) do
          default_action(:one)
        end
      end
      it { is_expected.to eq [:one] }
    end

    context "with a symbol action" do
      before { resource.action(:one) }
      it { is_expected.to eq [:one] }
    end

    context "with a string action" do
      before { resource.action("two") }
      it { is_expected.to eq [:two] }
    end

    context "with an array action" do
      before { resource.action(%i{two one}) }
      it { is_expected.to eq %i{two one} }
    end

    context "with an assignment" do
      before { resource.action = :one }
      it { is_expected.to eq [:one] }
    end

    context "with an array assignment" do
      before { resource.action = %i{two one} }
      it { is_expected.to eq %i{two one} }
    end

    context "with an invalid action" do
      it { expect { resource.action(:three) }.to raise_error Chef::Exceptions::ValidationFailed }
    end

    context "with an invalid assignment action" do
      it { expect { resource.action = :three }.to raise_error Chef::Exceptions::ValidationFailed }
    end
  end

  describe ".default_action" do
    let(:default_action) {}
    let(:resource_class) do
      actions = default_action
      Class.new(described_class) do
        default_action(actions) if actions
      end
    end
    subject { resource_class.default_action }

    context "with no default actions" do
      it { is_expected.to eq [:nothing] }
    end

    context "with a symbol default action" do
      let(:default_action) { :one }
      it { is_expected.to eq [:one] }
    end

    context "with a string default action" do
      let(:default_action) { "one" }
      it { is_expected.to eq [:one] }
    end

    context "with an array default action" do
      let(:default_action) { %i{two one} }
      it { is_expected.to eq %i{two one} }
    end
  end

  describe ".preview_resource" do
    let(:klass) { Class.new(Chef::Resource) }

    before do
      allow(Chef::DSL::Resources).to receive(:add_resource_dsl).with(:test_resource)
    end

    it "defaults to false" do
      expect(klass.preview_resource).to eq false
    end

    it "can be set to true" do
      klass.preview_resource(true)
      expect(klass.preview_resource).to eq true
    end

    it "does not affect provides by default" do
      expect(Chef.resource_handler_map).to receive(:set).with(:test_resource, klass, { canonical: true })
      klass.resource_name(:test_resource)
    end
  end
end