Merge pull request #5886 from MsysTechnologiesllc/nim/windows_task

Adding windows_task resource

8 files changed, 1266 insertions, 0 deletions

diff --git a/Gemfile.lock b/Gemfile.lock
index 13a6e8fdcd..2f1ebf16ef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -123,6 +123,7 @@ PATH
       ffi-yajl (~> 2.2)
       highline (~> 1.6, >= 1.6.9)
       iniparse (~> 1.4)
+      iso8601 (~> 0.9.1)
       mixlib-archive (~> 0.4)
       mixlib-authentication (~> 1.4)
       mixlib-cli (~> 1.7)
@@ -153,6 +154,7 @@ PATH
       ffi-yajl (~> 2.2)
       highline (~> 1.6, >= 1.6.9)
       iniparse (~> 1.4)
+      iso8601 (~> 0.9.1)
       mixlib-archive (~> 0.4)
       mixlib-authentication (~> 1.4)
       mixlib-cli (~> 1.7)
@@ -331,6 +333,7 @@ GEM
       toml (~> 0.1)
       train (>= 0.22.0, < 1.0)
     ipaddress (0.8.3)
+    iso8601 (0.9.1)
     jmespath (1.3.1)
     json (2.0.3)
     kitchen-docker (2.6.0)
diff --git a/chef.gemspec b/chef.gemspec
index eab62b8eaa..93bfd26ea6 100644
--- a/chef.gemspec
+++ b/chef.gemspec
@@ -37,6 +37,7 @@ Gem::Specification.new do |s|
   s.add_dependency "plist", "~> 3.2"
   s.add_dependency "iniparse", "~> 1.4"
   s.add_dependency "addressable"
+  s.add_dependency "iso8601", "~> 0.9.1"
 
   # Audit mode requires these, so they are non-developmental dependencies now
   %w{rspec-core rspec-expectations rspec-mocks}.each { |gem| s.add_dependency gem, "~> 3.5" }
diff --git a/lib/chef/provider/windows_task.rb b/lib/chef/provider/windows_task.rb
new file mode 100644
index 0000000000..a96d4b2b7e
--- /dev/null
+++ b/lib/chef/provider/windows_task.rb
@@ -0,0 +1,418 @@
+#
+# Author:: Nimisha Sharad (<nimisha.sharad@msystechnologies.com>)
+# Copyright:: Copyright 2008-2016, 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 "chef/mixin/shell_out"
+require "rexml/document"
+require "iso8601"
+require "chef/mixin/powershell_out"
+
+class Chef
+  class Provider
+    class WindowsTask < Chef::Provider
+      include Chef::Mixin::ShellOut
+      include Chef::Mixin::PowershellOut
+
+      provides :windows_task, os: "windows"
+
+      def load_current_resource
+        @current_resource = Chef::Resource::WindowsTask.new(new_resource.name)
+        pathed_task_name = new_resource.task_name.start_with?('\\') ? new_resource.task_name : "\\#{new_resource.task_name}"
+
+        @current_resource.task_name(pathed_task_name)
+        task_hash = load_task_hash(pathed_task_name)
+
+        set_current_resource(task_hash) if task_hash.respond_to?(:[]) && task_hash[:TaskName] == pathed_task_name
+        @current_resource
+      end
+
+      def set_current_resource(task_hash)
+        @current_resource.exists = true
+        @current_resource.command(task_hash[:TaskToRun])
+        @current_resource.cwd(task_hash[:StartIn]) unless task_hash[:StartIn] == "N/A"
+        @current_resource.user(task_hash[:RunAsUser])
+        set_current_run_level task_hash[:run_level]
+        set_current_frequency task_hash
+        @current_resource.day(task_hash[:day]) if task_hash[:day]
+        @current_resource.months(task_hash[:months]) if task_hash[:months]
+        set_current_idle_time(task_hash[:idle_time]) if task_hash[:idle_time]
+        @current_resource.random_delay(task_hash[:random_delay]) if task_hash[:random_delay]
+        @current_resource.execution_time_limit(task_hash[:execution_time_limit]) if task_hash[:execution_time_limit]
+
+        @current_resource.status = :running if task_hash[:Status] == "Running"
+        @current_resource.enabled = true if task_hash[:ScheduledTaskState] == "Enabled"
+      end
+
+      def action_create
+        if @current_resource.exists && !(task_need_update? || @new_resource.force)
+          Chef::Log.info "#{@new_resource} task already exists - nothing to do"
+        else
+          options = {}
+          options["F"] = "" if @new_resource.force || task_need_update?
+          options["SC"] = schedule
+          options["MO"] = @new_resource.frequency_modifier if frequency_modifier_allowed
+          options["I"]  = @new_resource.idle_time unless @new_resource.idle_time.nil?
+          options["SD"] = @new_resource.start_day unless @new_resource.start_day.nil?
+          options["ST"] = @new_resource.start_time unless @new_resource.start_time.nil?
+          options["TR"] = @new_resource.command
+          options["RU"] = @new_resource.user
+          options["RP"] = @new_resource.password if use_password?
+          options["RL"] = "HIGHEST" if @new_resource.run_level == :highest
+          options["IT"] = "" if @new_resource.interactive_enabled
+          options["D"] = @new_resource.day if @new_resource.day
+          options["M"] = @new_resource.months unless @new_resource.months.nil?
+
+          run_schtasks "CREATE", options
+          xml_options = []
+          xml_options << "cwd" if new_resource.cwd
+          xml_options << "random_delay" if new_resource.random_delay
+          xml_options << "execution_time_limit" if new_resource.execution_time_limit
+          update_task_xml(xml_options) unless xml_options.empty?
+
+          new_resource.updated_by_last_action true
+          Chef::Log.info "#{@new_resource} task created"
+        end
+      end
+
+      def action_run
+        if @current_resource.exists
+          if @current_resource.status == :running
+            Chef::Log.info "#{@new_resource} task is currently running, skipping run"
+          else
+            run_schtasks "RUN"
+            new_resource.updated_by_last_action true
+            Chef::Log.info "#{@new_resource} task ran"
+          end
+        else
+          Chef::Log.warn "#{@new_resource} task doesn't exists - nothing to do"
+        end
+      end
+
+      def action_delete
+        if @current_resource.exists
+          # always need to force deletion
+          run_schtasks "DELETE", "F" => ""
+          new_resource.updated_by_last_action true
+          Chef::Log.info "#{@new_resource} task deleted"
+        else
+          Chef::Log.warn "#{@new_resource} task doesn't exists - nothing to do"
+        end
+      end
+
+      def action_end
+        if @current_resource.exists
+          if @current_resource.status != :running
+            Chef::Log.debug "#{@new_resource} is not running - nothing to do"
+          else
+            run_schtasks "END"
+            @new_resource.updated_by_last_action true
+            Chef::Log.info "#{@new_resource} task ended"
+          end
+        else
+          Chef::Log.warn "#{@new_resource} task doesn't exist - nothing to do"
+        end
+      end
+
+      def action_enable
+        if @current_resource.exists
+          if @current_resource.enabled
+            Chef::Log.debug "#{@new_resource} already enabled - nothing to do"
+          else
+            run_schtasks "CHANGE", "ENABLE" => ""
+            @new_resource.updated_by_last_action true
+            Chef::Log.info "#{@new_resource} task enabled"
+          end
+        else
+          Chef::Log.fatal "#{@new_resource} task doesn't exist - nothing to do"
+          raise Errno::ENOENT, "#{@new_resource}: task does not exist, cannot enable"
+        end
+      end
+
+      def action_disable
+        if @current_resource.exists
+          if @current_resource.enabled
+            run_schtasks "CHANGE", "DISABLE" => ""
+            @new_resource.updated_by_last_action true
+            Chef::Log.info "#{@new_resource} task disabled"
+          else
+            Chef::Log.warn "#{@new_resource} already disabled - nothing to do"
+          end
+        else
+          Chef::Log.warn "#{@new_resource} task doesn't exist - nothing to do"
+        end
+      end
+
+      private
+
+      # rubocop:disable Style/StringLiteralsInInterpolation
+      def run_schtasks(task_action, options = {})
+        cmd = "schtasks /#{task_action} /TN \"#{@new_resource.task_name}\" "
+        options.keys.each do |option|
+          cmd += "/#{option} "
+          cmd += "\"#{options[option].to_s.gsub('"', "\\\"")}\" " unless options[option] == ""
+        end
+        Chef::Log.debug("running: ")
+        Chef::Log.debug("    #{cmd}")
+        shell_out!(cmd, returns: [0])
+      end
+      # rubocop:enable Style/StringLiteralsInInterpolation
+
+      def task_need_update?
+        return true if @current_resource.command != @new_resource.command.tr("'", '"') ||
+            @current_resource.user != @new_resource.user ||
+            @current_resource.run_level != @new_resource.run_level ||
+            @current_resource.cwd != @new_resource.cwd ||
+            @current_resource.frequency_modifier != @new_resource.frequency_modifier ||
+            @current_resource.frequency != @new_resource.frequency ||
+            @current_resource.idle_time != @new_resource.idle_time ||
+            @current_resource.random_delay != @new_resource.random_delay ||
+            @current_resource.execution_time_limit != @new_resource.execution_time_limit ||
+            !@new_resource.start_day.nil? || !@new_resource.start_time.nil?
+
+        begin
+          return true if @new_resource.day.to_s.casecmp(@current_resource.day.to_s) != 0 ||
+              @new_resource.months.to_s.casecmp(@current_resource.months.to_s) != 0
+        rescue
+          Chef::Log.debug "caught a raise in task_needs_update?"
+        end
+
+        false
+      end
+
+      def update_task_xml(options = [])
+        # random_delay xml element is different for different frequencies
+        random_delay_xml_element = {
+          :minute => "Triggers/TimeTrigger/RandomDelay",
+          :hourly => "Triggers/TimeTrigger/RandomDelay",
+          :once => "Triggers/TimeTrigger/RandomDelay",
+          :daily => "Triggers/CalendarTrigger/RandomDelay",
+          :weekly => "Triggers/CalendarTrigger/RandomDelay",
+          :monthly => "Triggers/CalendarTrigger/RandomDelay",
+        }
+
+        xml_element_mapping = {
+          "cwd" => "Actions/Exec/WorkingDirectory",
+          "random_delay" => random_delay_xml_element[@new_resource.frequency],
+          "execution_time_limit" => "Settings/ExecutionTimeLimit",
+        }
+
+        Chef::Log.debug "looking for existing tasks"
+
+        task_script = <<-EOH
+            [Console]::OutputEncoding = [Text.UTF8Encoding]::UTF8
+            schtasks /Query /TN \"#{@new_resource.task_name}\" /XML
+        EOH
+        xml_cmd = powershell_out(task_script)
+
+        return if xml_cmd.exitstatus != 0
+
+        doc = REXML::Document.new(xml_cmd.stdout)
+
+        options.each do |option|
+          Chef::Log.debug 'Removing former #{option} if any'
+          doc.root.elements.delete(xml_element_mapping[option])
+          option_value = @new_resource.send("#{option}")
+
+          if option_value
+            Chef::Log.debug "Setting #option as #option_value"
+            split_xml_path = xml_element_mapping[option].split("/") # eg. if xml_element_mapping[option] = "Actions/Exec/WorkingDirectory"
+            element_name = split_xml_path.last # element_name = "WorkingDirectory"
+            cwd_element = REXML::Element.new(element_name)
+            cwd_element.add_text(option_value)
+            element_root = (split_xml_path - [element_name]).join("/") # element_root = 'Actions/Exec'
+            exec_element = doc.root.elements[element_root]
+            exec_element.add_element(cwd_element)
+          end
+        end
+
+        temp_task_file = ::File.join(ENV["TEMP"], "windows_task.xml")
+        begin
+          ::File.open(temp_task_file, "w:UTF-16LE") do |f|
+            doc.write(f)
+          end
+
+          options = {}
+          options["RU"] = @new_resource.user if @new_resource.user
+          options["RP"] = @new_resource.password if @new_resource.password
+          options["IT"] = "" if @new_resource.interactive_enabled
+          options["XML"] = temp_task_file
+
+          run_schtasks("DELETE", "F" => "")
+          run_schtasks("CREATE", options)
+        ensure
+          ::File.delete(temp_task_file)
+        end
+      end
+
+      def load_task_hash(task_name)
+        Chef::Log.debug "Looking for existing tasks"
+
+        task_script = <<-EOH
+          [Console]::OutputEncoding = [Text.UTF8Encoding]::UTF8
+          schtasks /Query /FO LIST /V /TN \"#{task_name}\"
+        EOH
+
+        output = powershell_out(task_script).stdout.force_encoding("UTF-8")
+        if output.empty?
+          task = false
+        else
+          task = {}
+
+          output.split("\n").map! do |line|
+            line.split(": ").map!(&:strip)
+          end.each do |field|
+            if field.is_a?(Array) && field[0].respond_to?(:to_sym)
+              key = (field - [field.last]).join(": ")
+              task[key.gsub(/\s+/, "").to_sym] = field.last
+            end
+          end
+        end
+
+        task_xml = load_task_xml task_name
+        task.merge!(task_xml) if task && task_xml
+
+        task
+      end
+
+      def load_task_xml(task_name)
+        task_script = <<-EOH
+            [Console]::OutputEncoding = [Text.UTF8Encoding]::UTF8
+            schtasks /Query /TN \"#{task_name}\" /XML
+        EOH
+        xml_cmd = powershell_out(task_script)
+
+        return if xml_cmd.exitstatus != 0
+
+        doc = REXML::Document.new(xml_cmd.stdout)
+        root = doc.root
+
+        task = {}
+        task[:run_level] = root.elements["Principals/Principal/RunLevel"].text if root.elements["Principals/Principal/RunLevel"]
+
+        # for frequency = :minutes, :hourly
+        task[:repetition_interval] = root.elements["Triggers/TimeTrigger/Repetition/Interval"].text if root.elements["Triggers/TimeTrigger/Repetition/Interval"]
+
+        # for frequency = :daily
+        task[:schedule_by_day] = root.elements["Triggers/CalendarTrigger/ScheduleByDay/DaysInterval"].text if root.elements["Triggers/CalendarTrigger/ScheduleByDay/DaysInterval"]
+
+        # for frequency = :weekly
+        task[:schedule_by_week] = root.elements["Triggers/CalendarTrigger/ScheduleByWeek/WeeksInterval"].text if root.elements["Triggers/CalendarTrigger/ScheduleByWeek/WeeksInterval"]
+        if root.elements["Triggers/CalendarTrigger/ScheduleByWeek/DaysOfWeek"]
+          task[:day] = []
+          root.elements["Triggers/CalendarTrigger/ScheduleByWeek/DaysOfWeek"].elements.each do |e|
+            task[:day] << e.to_s[0..3].delete("<").delete("/>")
+          end
+          task[:day] = task[:day].join(", ")
+        end
+
+        # for frequency = :monthly
+        task[:schedule_by_month] = root.elements["Triggers/CalendarTrigger/ScheduleByMonth/DaysOfMonth/Day"].text if root.elements["Triggers/CalendarTrigger/ScheduleByMonth/DaysOfMonth/Day"]
+        if root.elements["Triggers/CalendarTrigger/ScheduleByMonth/Months"]
+          task[:months] = []
+          root.elements["Triggers/CalendarTrigger/ScheduleByMonth/Months"].elements.each do |e|
+            task[:months] << e.to_s[0..3].delete("<").delete("/>")
+          end
+          task[:months] = task[:months].join(", ")
+        end
+
+        task[:on_logon] = true if root.elements["Triggers/LogonTrigger"]
+        task[:onstart] = true if root.elements["Triggers/BootTrigger"]
+        task[:on_idle] = true if root.elements["Triggers/IdleTrigger"]
+
+        task[:idle_time] = root.elements["Settings/IdleSettings/Duration"].text if root.elements["Settings/IdleSettings/Duration"] && task[:on_idle]
+
+        task[:once] = true if !(task[:repetition_interval] || task[:schedule_by_day] || task[:schedule_by_week] || task[:schedule_by_month] || task[:on_logon] || task[:onstart] || task[:on_idle])
+        task[:execution_time_limit] = root.elements["Settings/ExecutionTimeLimit"].text if root.elements["Settings/ExecutionTimeLimit"] #by default PT72H
+        task[:random_delay] = root.elements["Triggers/TimeTrigger/RandomDelay"].text if root.elements["Triggers/TimeTrigger/RandomDelay"]
+        task[:random_delay] = root.elements["Triggers/CalendarTrigger/RandomDelay"].text if root.elements["Triggers/CalendarTrigger/RandomDelay"]
+        task
+      end
+
+      SYSTEM_USERS = ['NT AUTHORITY\SYSTEM', "SYSTEM", 'NT AUTHORITY\LOCALSERVICE', 'NT AUTHORITY\NETWORKSERVICE', 'BUILTIN\USERS', "USERS"].freeze
+
+      def use_password?
+        @use_password ||= !SYSTEM_USERS.include?(@new_resource.user.upcase)
+      end
+
+      def schedule
+        case @new_resource.frequency
+        when :on_logon
+          "ONLOGON"
+        when :on_idle
+          "ONIDLE"
+        else
+          @new_resource.frequency
+        end
+      end
+
+      def frequency_modifier_allowed
+        case @new_resource.frequency
+        when :minute, :hourly, :daily, :weekly
+          true
+        when :monthly
+          @new_resource.months.nil? || %w{ FIRST SECOND THIRD FOURTH LAST LASTDAY }.include?(@new_resource.frequency_modifier)
+        else
+          false
+        end
+      end
+
+      def set_current_run_level(run_level)
+        case run_level
+        when "HighestAvailable"
+          @current_resource.run_level(:highest)
+        when "LeastPrivilege"
+          @current_resource.run_level(:limited)
+        end
+      end
+
+      def set_current_frequency(task_hash)
+        if task_hash[:repetition_interval]
+          duration = ISO8601::Duration.new(task_hash[:repetition_interval])
+          if task_hash[:repetition_interval].include?("M")
+            @current_resource.frequency(:minute)
+            @current_resource.frequency_modifier(duration.minutes.atom.to_i)
+          elsif task_hash[:repetition_interval].include?("H")
+            @current_resource.frequency(:hourly)
+            @current_resource.frequency_modifier(duration.hours.atom.to_i)
+          end
+        end
+
+        if task_hash[:schedule_by_day]
+          @current_resource.frequency(:daily)
+          @current_resource.frequency_modifier(task_hash[:schedule_by_day].to_i)
+        end
+
+        if task_hash[:schedule_by_week]
+          @current_resource.frequency(:weekly)
+          @current_resource.frequency_modifier(task_hash[:schedule_by_week].to_i)
+        end
+
+        @current_resource.frequency(:monthly) if task_hash[:schedule_by_month]
+        @current_resource.frequency(:on_logon) if task_hash[:on_logon]
+        @current_resource.frequency(:onstart) if task_hash[:onstart]
+        @current_resource.frequency(:on_idle) if task_hash[:on_idle]
+        @current_resource.frequency(:once) if task_hash[:once]
+      end
+
+      def set_current_idle_time(idle_time)
+        duration = ISO8601::Duration.new(idle_time)
+        @current_resource.idle_time(duration.minutes.atom.to_i)
+      end
+
+    end
+  end
+end
diff --git a/lib/chef/providers.rb b/lib/chef/providers.rb
index 0f19f56a8f..41de44a1d6 100644
--- a/lib/chef/providers.rb
+++ b/lib/chef/providers.rb
@@ -59,6 +59,7 @@ require "chef/provider/template"
 require "chef/provider/user"
 require "chef/provider/whyrun_safe_ruby_block"
 require "chef/provider/yum_repository"
+require "chef/provider/windows_task"
 
 require "chef/provider/env/windows"
 
diff --git a/lib/chef/resource/windows_task.rb b/lib/chef/resource/windows_task.rb
new file mode 100644
index 0000000000..25e76f4220
--- /dev/null
+++ b/lib/chef/resource/windows_task.rb
@@ -0,0 +1,237 @@
+#
+# Author:: Nimisha Sharad (<nimisha.sharad@msystechnologies.com>)
+# Copyright:: Copyright 2008-2016, 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 "chef/resource"
+
+class Chef
+  class Resource
+    class WindowsTask < Chef::Resource
+
+      provides :windows_task, os: "windows"
+
+      allowed_actions :create, :delete, :run, :end, :change, :enable, :disable
+      default_action :create
+
+      def initialize(name, run_context = nil)
+        super
+        @resource_name = :windows_task
+        @task_name = name
+        @action = :create
+      end
+
+      property :task_name, String, regex: [/\A[^\/\:\*\?\<\>\|]+\z/]
+      property :command, String
+      property :cwd, String
+      property :user, String, default: "SYSTEM"
+      property :password, String
+      property :run_level, equal_to: [:highest, :limited], default: :limited
+      property :force, [TrueClass, FalseClass], default: false
+      property :interactive_enabled, [TrueClass, FalseClass], default: false
+      property :frequency_modifier, [Integer, String], default: 1
+      property :frequency, equal_to: [:minute,
+                                       :hourly,
+                                       :daily,
+                                       :weekly,
+                                       :monthly,
+                                       :once,
+                                       :on_logon,
+                                       :onstart,
+                                       :on_idle], default: :hourly
+      property :start_day, String
+      property :start_time, String
+      property :day, [String, Integer]
+      property :months, String
+      property :idle_time, Integer
+      property :random_delay, String
+      property :execution_time_limit, String
+
+      attr_accessor :exists, :status, :enabled
+
+      def after_created
+        if random_delay
+          validate_random_delay(random_delay, frequency)
+          duration = sec_to_dur(random_delay)
+          random_delay(duration)
+        end
+
+        if execution_time_limit
+          raise ArgumentError, "Invalid value passed for `execution_time_limit`. Please pass seconds as a String e.g. '60'." if execution_time_limit.to_i == 0
+          duration = sec_to_dur(execution_time_limit)
+          execution_time_limit(duration)
+        else
+          # schtask sets execution_time_limit as PT72H by default
+          # We are setting the default value here so that we can do idempotency check later
+          # Note: We can't use `default` in the property
+          # because it will raise error for Invalid values passed as "PT72H" is not in seconds
+          execution_time_limit("PT72H")
+        end
+
+        validate_start_time(start_time) if frequency == :once
+        validate_start_day(start_day, frequency) if start_day
+        validate_user_and_password(user, password)
+        validate_interactive_setting(interactive_enabled, password)
+        validate_create_frequency_modifier(frequency, frequency_modifier)
+        validate_create_day(day, frequency) if day
+        validate_create_months(months, frequency) if months
+        validate_idle_time(idle_time, frequency) if idle_time
+      end
+
+      private
+
+      def validate_random_delay(random_delay, frequency)
+        if [:once, :on_logon, :onstart, :on_idle].include? frequency
+          raise ArgumentError, "`random_delay` property is supported only for frequency :minute, :hourly, :daily, :weekly and :monthly"
+        end
+
+        raise ArgumentError, "Invalid value passed for `random_delay`. Please pass seconds as a String e.g. '60'." if random_delay.to_i == 0
+      end
+
+      def validate_start_day(start_day, frequency)
+        if [:once, :on_logon, :onstart, :on_idle].include? frequency
+          raise ArgumentError, "`start_day` property is not supported with frequency: #{frequency}"
+        end
+      end
+
+      def validate_start_time(start_time)
+        raise ArgumentError, "`start_time` needs to be provided with `frequency :once`" unless start_time
+      end
+
+      SYSTEM_USERS = ['NT AUTHORITY\SYSTEM', "SYSTEM", 'NT AUTHORITY\LOCALSERVICE', 'NT AUTHORITY\NETWORKSERVICE', 'BUILTIN\USERS', "USERS"].freeze
+
+      def validate_user_and_password(user, password)
+        if user && use_password?(user)
+          if password.nil?
+            raise ArgumentError, "Can't specify a non-system user without a password!"
+          end
+        end
+      end
+
+      def use_password?(user)
+        @use_password ||= !SYSTEM_USERS.include?(user.upcase)
+      end
+
+      def validate_interactive_setting(interactive_enabled, password)
+        if interactive_enabled && password.nil?
+          raise ArgumentError, "Please provide the password when attempting to set interactive/non-interactive."
+        end
+      end
+
+      def validate_create_frequency_modifier(frequency, frequency_modifier)
+        # Currently is handled in create action 'frequency_modifier_allowed' line. Does not allow for frequency_modifier for once,onstart,onlogon,onidle
+        # Note that 'OnEvent' is not a supported frequency.
+        unless frequency.nil? || frequency_modifier.nil?
+          case frequency
+          when :minute
+            unless frequency_modifier.to_i > 0 && frequency_modifier.to_i <= 1439
+              raise ArgumentError, "frequency_modifier value #{frequency_modifier} is invalid.  Valid values for :minute frequency are 1 - 1439."
+            end
+          when :hourly
+            unless frequency_modifier.to_i > 0 && frequency_modifier.to_i <= 23
+              raise ArgumentError, "frequency_modifier value #{frequency_modifier} is invalid.  Valid values for :hourly frequency are 1 - 23."
+            end
+          when :daily
+            unless frequency_modifier.to_i > 0 && frequency_modifier.to_i <= 365
+              raise ArgumentError, "frequency_modifier value #{frequency_modifier} is invalid.  Valid values for :daily frequency are 1 - 365."
+            end
+          when :weekly
+            unless frequency_modifier.to_i > 0 && frequency_modifier.to_i <= 52
+              raise ArgumentError, "frequency_modifier value #{frequency_modifier} is invalid.  Valid values for :weekly frequency are 1 - 52."
+            end
+          when :monthly
+            unless ("1".."12").to_a.push("FIRST", "SECOND", "THIRD", "FOURTH", "LAST", "LASTDAY").include?(frequency_modifier.to_s.upcase)
+              raise ArgumentError, "frequency_modifier value #{frequency_modifier} is invalid.  Valid values for :monthly frequency are 1 - 12, 'FIRST', 'SECOND', 'THIRD', 'FOURTH', 'LAST', 'LASTDAY'."
+            end
+          end
+        end
+      end
+
+      def validate_create_day(day, frequency)
+        unless [:weekly].include?(frequency)
+          raise "day attribute is only valid for tasks that run weekly"
+        end
+        if day.is_a?(String) && day.to_i.to_s != day
+          days = day.split(",")
+          days.each do |d|
+            unless ["mon", "tue", "wed", "thu", "fri", "sat", "sun", "*"].include?(d.strip.downcase)
+              raise "day attribute invalid.  Only valid values are: MON, TUE, WED, THU, FRI, SAT, SUN and *.  Multiple values must be separated by a comma."
+            end
+          end
+        end
+      end
+
+      def validate_create_months(months, frequency)
+        unless [:monthly].include?(frequency)
+          raise "months attribute is only valid for tasks that run monthly"
+        end
+        if months.is_a? String
+          months.split(",").each do |month|
+            unless ["JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC", "*"].include?(month.strip.upcase)
+              raise "months attribute invalid. Only valid values are: JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC and *. Multiple values must be separated by a comma."
+            end
+          end
+        end
+      end
+
+      def validate_idle_time(idle_time, frequency)
+        unless [:on_idle].include?(frequency)
+          raise "idle_time attribute is only valid for tasks that run on_idle"
+        end
+
+        unless idle_time.to_i > 0 && idle_time.to_i <= 999
+          raise "idle_time value #{idle_time} is invalid.  Valid values for :on_idle frequency are 1 - 999."
+        end
+      end
+
+      # Convert the number of seconds to an ISO8601 duration format
+      # @see http://tools.ietf.org/html/rfc2445#section-4.3.6
+      # @param [Integer] seconds The amount of seconds for this duration
+      def sec_to_dur(seconds)
+        seconds = seconds.to_i
+        return if seconds == 0
+        iso_str = "P"
+        if seconds > 604_800 # more than a week
+          weeks = seconds / 604_800
+          seconds -= (604_800 * weeks)
+          iso_str << "#{weeks}W"
+        end
+        if seconds > 86_400 # more than a day
+          days = seconds / 86_400
+          seconds -= (86_400 * days)
+          iso_str << "#{days}D"
+        end
+        if seconds > 0
+          iso_str << "T"
+          if seconds > 3600 # more than an hour
+            hours = seconds / 3600
+            seconds -= (3600 * hours)
+            iso_str << "#{hours}H"
+          end
+          if seconds > 60 # more than a minute
+            minutes = seconds / 60
+            seconds -= (60 * minutes)
+            iso_str << "#{minutes}M"
+          end
+          iso_str << "#{seconds}S"
+        end
+
+        iso_str
+      end
+
+    end
+  end
+end
diff --git a/lib/chef/resources.rb b/lib/chef/resources.rb
index a254fa601f..9f87cb2454 100644
--- a/lib/chef/resources.rb
+++ b/lib/chef/resources.rb
@@ -98,3 +98,4 @@ require "chef/resource/zypper_package"
 require "chef/resource/cab_package"
 require "chef/resource/powershell_package"
 require "chef/resource/msu_package"
+require "chef/resource/windows_task"
diff --git a/spec/unit/provider/windows_task_spec.rb b/spec/unit/provider/windows_task_spec.rb
new file mode 100644
index 0000000000..80038aa6db
--- /dev/null
+++ b/spec/unit/provider/windows_task_spec.rb
@@ -0,0 +1,392 @@
+#
+# Author:: Nimisha Sharad (<nimisha.sharad@msystechnologies.com>)
+# Copyright:: Copyright 2008-2016, 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::Provider::WindowsTask do
+  let(:new_resource) { Chef::Resource::WindowsTask.new("sample_task") }
+
+  let(:provider) do
+    node = Chef::Node.new
+    events = Chef::EventDispatch::Dispatcher.new
+    run_context = Chef::RunContext.new(node, {}, events)
+    Chef::Provider::WindowsTask.new(new_resource, run_context)
+  end
+
+  let(:task_hash) do
+    {
+      :"" => "",
+      :Folder => "\\",
+      :HostName => "NIMISHA-PC",
+      :TaskName => "\\sample_task",
+      :NextRunTime => "3/30/2017 2:42:00 PM",
+      :Status => "Ready",
+      :LogonMode => "Interactive/Background",
+      :LastRunTime => "3/30/2017 2:27:00 PM",
+      :LastResult => "1",
+      :Author => "Administrator",
+      :TaskToRun => "chef-client",
+      :StartIn => "N/A",
+      :Comment => "N/A",
+      :ScheduledTaskState => "Enabled",
+      :IdleTime => "Disabled",
+      :PowerManagement => "Stop On Battery Mode, No Start On Batteries",
+      :RunAsUser => "SYSTEM",
+      :DeleteTaskIfNotRescheduled => "Enabled",
+      :StopTaskIfRunsXHoursandXMins => "72:00:00",
+      :Schedule => "Scheduling data is not available in this format.",
+      :ScheduleType => "One Time Only, Minute",
+      :StartTime => "1:12:00 PM",
+      :StartDate => "3/30/2017",
+      :EndDate => "N/A",
+      :Days => "N/A",
+      :Months => "N/A",
+      :"Repeat:Every" => "0 Hour(s), 15 Minute(s)",
+      :"Repeat:Until:Time" => "None",
+      :"Repeat:Until:Duration" => "Disabled",
+      :"Repeat:StopIfStillRunning" => "Disabled",
+      :run_level => "HighestAvailable",
+      :repetition_interval => "PT15M",
+      :execution_time_limit => "PT72H",
+    }
+  end
+
+  let(:task_xml) do
+    "<?xml version=\"1.0\" encoding=\"UTF-16\"?>\r\r\n<Task version=\"1.2\" xmlns=\"http://schemas.microsoft.com/windows/2004/02/mit/task\">\r\r\n  <RegistrationInfo>\r\r\n    <Date>2017-03-31T15:34:44</Date>\r\r\n    <Author>Administrator</Author>\r\r\n  </RegistrationInfo>\r\r\n<Triggers>\r\r\n    <TimeTrigger>\r\r\n      <Repetition>\r\r\n        <Interval>PT15M</Interval>\r\r\n        <StopAtDurationEnd>false</StopAtDurationEnd>\r\r\n      </Repetition>\r\r\n      <StartBoundary>2017-03-31T15:34:00</StartBoundary>\r\r\n      <Enabled>true</Enabled>\r\r\n    </TimeTrigger>\r\r\n  </Triggers>\r\r\n  <Principals>\r\r\n    <Principal id=\"Author\">\r\r\n      <RunLevel>HighestAvailable</RunLevel>\r\r\n      <UserId>S-1-5-18</UserId>\r\r\n    </Principal>\r\r\n  </Principals>\r\r\n  <Settings>\r\r\n    <MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>\r\r\n    <DisallowStartIfOnBatteries>true</DisallowStartIfOnBatteries>\r\r\n    <StopIfGoingOnBatteries>true</StopIfGoingOnBatteries>\r\r\n    <AllowHardTerminate>true</AllowHardTerminate>\r\r\n    <StartWhenAvailable>false</StartWhenAvailable>\r\r\n    <RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>\r\r\n    <IdleSettings>\r\r\n      <Duration>PT10M</Duration>\r\r\n<WaitTimeout>PT1H</WaitTimeout>\r\r\n      <StopOnIdleEnd>true</StopOnIdleEnd>\r\r\n      <RestartOnIdle>false</RestartOnIdle>\r\r\n    </IdleSettings>\r\r\n    <AllowStartOnDemand>true</AllowStartOnDemand>\r\r\n    <Enabled>true</Enabled>\r\r\n    <Hidden>false</Hidden>\r\r\n<RunOnlyIfIdle>false</RunOnlyIfIdle>\r\r\n    <WakeToRun>false</WakeToRun>\r\r\n    <ExecutionTimeLimit>PT72H</ExecutionTimeLimit>\r\r\n<Priority>7</Priority>\r\r\n  </Settings>\r\r\n  <Actions Context=\"Author\">\r\r\n    <Exec>\r\r\n      <Command>chef-client</Command>\r\r\n    </Exec>\r\r\n  </Actions>\r\r\n</Task>"
+  end
+
+  describe "#load_current_resource" do
+    it "returns a current_resource" do
+      allow(provider).to receive(:load_task_hash)
+      expect(provider.load_current_resource).to be_kind_of(Chef::Resource::WindowsTask)
+    end
+
+    context "if the given task name already exists" do
+      before do
+        allow(provider).to receive(:load_task_hash).and_return({ :TaskName => "\\sample_task" })
+      end
+
+      it "calls set_current_resource" do
+        expect(provider).to receive(:set_current_resource)
+        provider.load_current_resource
+      end
+    end
+
+    it "sets the attributes of current_resource" do
+      allow(provider).to receive(:load_task_hash).and_return(task_hash)
+      current_resource = provider.load_current_resource
+      expect(current_resource.exists).to be(true)
+      expect(current_resource.command).to eq("chef-client")
+      expect(current_resource.user).to eq("SYSTEM")
+      expect(current_resource.run_level).to eq(:highest)
+      expect(current_resource.frequency).to eq(:minute)
+      expect(current_resource.frequency_modifier).to eq(15)
+      expect(current_resource.execution_time_limit).to eq("PT72H")
+      expect(current_resource.enabled).to be(true)
+    end
+  end
+
+  describe "#action_create" do
+    it "doesn't create the same task if it's already existing" do
+      allow(provider).to receive(:load_task_hash).and_return(task_hash)
+      provider.load_current_resource
+      allow(provider).to receive(:task_need_update?).and_return(false)
+      provider.run_action(:create)
+      expect(new_resource).not_to be_updated_by_last_action
+    end
+
+    context "when task is not existing" do
+      before do
+        allow(provider).to receive(:load_task_hash)
+        provider.load_current_resource
+      end
+
+      it "creates the task if it's not already existing" do
+        allow(provider).to receive(:task_need_update?).and_return(true)
+        expect(provider).to receive(:run_schtasks).with("CREATE", { "F" => "", "SC" => :hourly, "MO" => 1, "TR" => nil, "RU" => "SYSTEM" })
+        provider.run_action(:create)
+        expect(new_resource).to be_updated_by_last_action
+      end
+
+      it "updates the task XML if random_delay is provided" do
+        new_resource.random_delay "20"
+        allow(provider).to receive(:task_need_update?).and_return(true)
+        expect(provider).to receive(:run_schtasks).with("CREATE", { "F" => "", "SC" => :hourly, "MO" => 1, "TR" => nil, "RU" => "SYSTEM" })
+        expect(provider).to receive(:update_task_xml)
+        provider.run_action(:create)
+        expect(new_resource).to be_updated_by_last_action
+      end
+
+      it "updates the task XML if execution_time_limit is provided" do
+        new_resource.execution_time_limit "20"
+        allow(provider).to receive(:task_need_update?).and_return(true)
+        expect(provider).to receive(:run_schtasks).with("CREATE", { "F" => "", "SC" => :hourly, "MO" => 1, "TR" => nil, "RU" => "SYSTEM" })
+        expect(provider).to receive(:update_task_xml)
+        provider.run_action(:create)
+        expect(new_resource).to be_updated_by_last_action
+      end
+    end
+  end
+
+  describe "#action_run" do
+    it "does nothing if the task doesn't exist" do
+      allow(provider).to receive(:load_task_hash)
+      provider.load_current_resource
+      provider.run_action(:run)
+      expect(new_resource).not_to be_updated_by_last_action
+    end
+
+    context "when the task exists" do
+      it "does nothing if the task is already running" do
+        task_hash[:Status] = "Running"
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+        provider.run_action(:run)
+        expect(new_resource).not_to be_updated_by_last_action
+      end
+
+      it "runs the task" do
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+        expect(provider).to receive(:run_schtasks).with("RUN")
+        provider.run_action(:run)
+        expect(new_resource).to be_updated_by_last_action
+      end
+    end
+  end
+
+  describe "#action_delete" do
+    it "deletes the task if it exists" do
+      allow(provider).to receive(:load_task_hash).and_return(task_hash)
+      provider.load_current_resource
+      expect(provider).to receive(:run_schtasks).with("DELETE", { "F" => "" })
+      provider.run_action(:delete)
+      expect(new_resource).to be_updated_by_last_action
+    end
+
+    it "does nothing if the task doesn't exist" do
+      allow(provider).to receive(:load_task_hash)
+      provider.load_current_resource
+      provider.run_action(:delete)
+      expect(new_resource).not_to be_updated_by_last_action
+    end
+  end
+
+  describe "#action_end" do
+    it "does nothing if the task doesn't exist" do
+      allow(provider).to receive(:load_task_hash)
+      provider.load_current_resource
+      provider.run_action(:end)
+      expect(new_resource).not_to be_updated_by_last_action
+    end
+
+    context "when the task exists" do
+      it "does nothing if the task is not running" do
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+        provider.run_action(:end)
+        expect(new_resource).not_to be_updated_by_last_action
+      end
+
+      it "ends the task if it's running" do
+        task_hash[:Status] = "Running"
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+        expect(provider).to receive(:run_schtasks).with("END")
+        provider.run_action(:end)
+        expect(new_resource).to be_updated_by_last_action
+      end
+    end
+  end
+
+  describe "#action_enable" do
+    it "raises error if the task doesn't exist" do
+      allow(provider).to receive(:load_task_hash)
+      provider.load_current_resource
+      expect { provider.run_action(:enable) }.to raise_error(Errno::ENOENT)
+    end
+
+    context "when the task exists" do
+      it "does nothing if the task is already enabled" do
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+        provider.run_action(:enable)
+        expect(new_resource).not_to be_updated_by_last_action
+      end
+
+      it "enables the task if it exists" do
+        task_hash[:ScheduledTaskState] = "Disabled"
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+        expect(provider).to receive(:run_schtasks).with("CHANGE", { "ENABLE" => "" })
+        provider.run_action(:enable)
+        expect(new_resource).to be_updated_by_last_action
+      end
+    end
+  end
+
+  describe "#action_disable" do
+    it "does nothing if the task doesn't exist" do
+      allow(provider).to receive(:load_task_hash)
+      provider.load_current_resource
+      provider.run_action(:disable)
+      expect(new_resource).not_to be_updated_by_last_action
+    end
+
+    context "when the task exists" do
+      it "disables the task if it's enabled" do
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+        expect(provider).to receive(:run_schtasks).with("CHANGE", { "DISABLE" => "" })
+        provider.run_action(:disable)
+        expect(new_resource).to be_updated_by_last_action
+      end
+
+      it "does nothing if the task is already disabled" do
+        task_hash[:ScheduledTaskState] = "Disabled"
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+        provider.run_action(:disable)
+        expect(new_resource).not_to be_updated_by_last_action
+      end
+    end
+  end
+
+  describe "#run_schtasks" do
+    before do
+      @task_action = "CREATE"
+      @options = { "F" => "", "SC" => :minute, "MO" => 15, "TR" => "chef-client", "RU" => "SYSTEM", "RL" => "HIGHEST" }
+      @cmd = "schtasks /CREATE /TN \"sample_task\" /F /SC \"minute\" /MO \"15\" /TR \"chef-client\" /RU \"SYSTEM\" /RL \"HIGHEST\" "
+    end
+
+    it "forms the command properly from the given options" do
+      expect(provider).to receive(:shell_out!).with(@cmd, { :returns => [0] })
+      provider.send(:run_schtasks, @task_action, @options)
+    end
+  end
+
+  describe "#task_need_update?" do
+    context "when task doesn't exist" do
+      before do
+        allow(provider).to receive(:load_task_hash)
+        provider.load_current_resource
+      end
+
+      it "returns true" do
+        new_resource.command "chef-client"
+        expect(provider.send(:task_need_update?)).to be(true)
+      end
+    end
+
+    context "when the task exists" do
+      before do
+        allow(provider).to receive(:load_task_hash).and_return(task_hash)
+        provider.load_current_resource
+
+        new_resource.command "chef-client"
+        new_resource.run_level :highest
+        new_resource.frequency :minute
+        new_resource.frequency_modifier 15
+        new_resource.user "SYSTEM"
+        new_resource.execution_time_limit "PT72H"
+      end
+
+      context "when no attributes are modified" do
+        it "returns false" do
+          expect(provider.send(:task_need_update?)).to be(false)
+        end
+      end
+
+      context "when frequency_modifier is updated" do
+        it "returns true" do
+          new_resource.frequency_modifier 25
+          expect(provider.send(:task_need_update?)).to be(true)
+        end
+      end
+
+      context "when months are updated" do
+        it "returns true" do
+          new_resource.months "JAN"
+          expect(provider.send(:task_need_update?)).to be(true)
+        end
+      end
+    end
+  end
+
+  describe "#update_task_xml" do
+    before do
+      new_resource.command "chef-client"
+      new_resource.run_level :highest
+      new_resource.frequency :minute
+      new_resource.frequency_modifier 15
+      new_resource.user "SYSTEM"
+      new_resource.random_delay "20"
+    end
+
+    it "does nothing if the task doesn't exist" do
+      task_xml = double("xml", :exitstatus => 1)
+      allow(provider).to receive(:powershell_out).and_return(task_xml)
+      output = provider.send(:update_task_xml, ["random_delay"])
+      expect(output).to be(nil)
+    end
+
+    it "updates the task XML if random_delay is passed" do
+      shell_out_obj = double("xml", :exitstatus => 0, :stdout => task_xml)
+      allow(provider).to receive(:powershell_out).and_return(shell_out_obj)
+      expect(::File).to receive(:join)
+      expect(::File).to receive(:open)
+      expect(::File).to receive(:delete)
+      expect(provider).to receive(:run_schtasks).twice
+      output = provider.send(:update_task_xml, ["random_delay"])
+    end
+  end
+
+  describe "#load_task_hash" do
+    it "returns false if the task doesn't exist" do
+      allow(provider).to receive_message_chain(:powershell_out, :stdout, :force_encoding).and_return("")
+      allow(provider).to receive(:load_task_xml)
+      expect(provider.send(:load_task_hash, "chef-client")).to be(false)
+    end
+
+    it "returns task hash if the task exists" do
+      powershell_output = "\r\nFolder: \\\r\nHostName:                             NIMISHA-PC\r\nTaskName:                             \\chef-client\r\n"
+      task_h = { :"" => "", :Folder => "\\", :HostName => "NIMISHA-PC", :TaskName => "\\chef-client" }
+      allow(provider).to receive_message_chain(:powershell_out, :stdout, :force_encoding).and_return(powershell_output)
+      allow(provider).to receive(:load_task_xml).with("chef-client")
+      expect(provider.send(:load_task_hash, "chef-client")).to eq(task_h)
+    end
+  end
+
+  describe "#frequency_modifier_allowed" do
+    it "returns true for frequency :hourly" do
+      new_resource.frequency :hourly
+      expect(provider.send(:frequency_modifier_allowed)).to be(true)
+    end
+
+    it "returns true for frequency :monthly if frequency_modifier is THIRD" do
+      new_resource.frequency :monthly
+      new_resource.frequency_modifier "THIRD"
+      expect(provider.send(:frequency_modifier_allowed)).to be(true)
+    end
+
+    it "returns false for frequency :once" do
+      new_resource.frequency :once
+      expect(provider.send(:frequency_modifier_allowed)).to be(false)
+    end
+  end
+end
diff --git a/spec/unit/resource/windows_task_spec.rb b/spec/unit/resource/windows_task_spec.rb
new file mode 100644
index 0000000000..fa2d458bbb
--- /dev/null
+++ b/spec/unit/resource/windows_task_spec.rb
@@ -0,0 +1,213 @@
+#
+# Author:: Nimisha Sharad (<nimisha.sharad@msystechnologies.com>)
+# Copyright:: Copyright 2008-2017, 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::WindowsTask do
+  let(:resource) { Chef::Resource::WindowsTask.new("sample_task") }
+
+  it "creates a new Chef::Resource::WindowsTask" do
+    expect(resource).to be_a_kind_of(Chef::Resource)
+    expect(resource).to be_a_instance_of(Chef::Resource::WindowsTask)
+  end
+
+  it "sets resource name as :windows_task" do
+    expect(resource.resource_name).to eql(:windows_task)
+  end
+
+  it "sets the task_name as it's name" do
+    expect(resource.task_name).to eql("sample_task")
+  end
+
+  it "sets the default action as :create" do
+    expect(resource.action).to eql(:create)
+  end
+
+  it "sets the default user as System" do
+    expect(resource.user).to eql("SYSTEM")
+  end
+
+  it "sets the default run_level as :limited" do
+    expect(resource.run_level).to eql(:limited)
+  end
+
+  it "sets the default force as false" do
+    expect(resource.force).to eql(false)
+  end
+
+  it "sets the default interactive_enabled as false" do
+    expect(resource.interactive_enabled).to eql(false)
+  end
+
+  it "sets the default frequency_modifier as 1" do
+    expect(resource.frequency_modifier).to eql(1)
+  end
+
+  it "sets the default frequency as :hourly" do
+    expect(resource.frequency).to eql(:hourly)
+  end
+
+  context "when random_delay is passed" do
+    it "raises error if frequency is `:once`" do
+      resource.frequency :once
+      resource.random_delay "20"
+      expect { resource.after_created }.to raise_error(Chef::Exceptions::ArgumentError, "`random_delay` property is supported only for frequency :minute, :hourly, :daily, :weekly and :monthly")
+    end
+
+    it "raises error for invalid random_delay" do
+      resource.frequency :monthly
+      resource.random_delay "xyz"
+      expect { resource.after_created }.to raise_error(Chef::Exceptions::ArgumentError, "Invalid value passed for `random_delay`. Please pass seconds as a String e.g. '60'.")
+    end
+
+    it "converts seconds into iso8601 format" do
+      resource.frequency :monthly
+      resource.random_delay "60"
+      resource.after_created
+      expect(resource.random_delay).to eq("PT60S")
+    end
+  end
+
+  context "when execution_time_limit is passed" do
+    it "sets the deafult value as PT72H" do
+      resource.after_created
+      expect(resource.execution_time_limit).to eq("PT72H")
+    end
+
+    it "raises error for invalid execution_time_limit" do
+      resource.execution_time_limit "abc"
+      expect { resource.after_created }.to raise_error(Chef::Exceptions::ArgumentError, "Invalid value passed for `execution_time_limit`. Please pass seconds as a String e.g. '60'.")
+    end
+
+    it "converts seconds into iso8601 format" do
+      resource.execution_time_limit "60"
+      resource.after_created
+      expect(resource.execution_time_limit).to eq("PT60S")
+    end
+  end
+
+  context "#validate_start_time" do
+    it "raises error if start_time is nil" do
+      expect { resource.send(:validate_start_time, nil) }.to raise_error(Chef::Exceptions::ArgumentError, "`start_time` needs to be provided with `frequency :once`")
+    end
+  end
+
+  context "#validate_start_day" do
+    it "raise error if start_day is passed with frequency :on_logon" do
+      resource.frequency :on_logon
+      expect { resource.send(:validate_start_day, "Wed", :on_logon) }.to raise_error(Chef::Exceptions::ArgumentError, "`start_day` property is not supported with frequency: on_logon")
+    end
+  end
+
+  context "#validate_user_and_password" do
+    context "when password is not passed" do
+      it "raises error with non-system users" do
+        allow(resource).to receive(:use_password?).and_return(true)
+        expect { resource.send(:validate_user_and_password, "Testuser", nil) }.to raise_error("Can't specify a non-system user without a password!")
+      end
+    end
+  end
+
+  context "#validate_interactive_setting" do
+    it "raises error when interactive_enabled is passed without password" do
+      expect { resource.send(:validate_interactive_setting, true, nil) }.to raise_error("Please provide the password when attempting to set interactive/non-interactive.")
+    end
+  end
+
+  context "#validate_create_frequency_modifier" do
+    context "when frequency is :minute" do
+      it "raises error if frequency_modifier > 1439" do
+        expect { resource.send(:validate_create_frequency_modifier, :minute, 1500) }.to raise_error("frequency_modifier value 1500 is invalid.  Valid values for :minute frequency are 1 - 1439.")
+      end
+    end
+
+    context "when frequency is :hourly" do
+      it "raises error if frequency_modifier > 23" do
+        expect { resource.send(:validate_create_frequency_modifier, :hourly, 24) }.to raise_error("frequency_modifier value 24 is invalid.  Valid values for :hourly frequency are 1 - 23.")
+      end
+    end
+
+    context "when frequency is :daily" do
+      it "raises error if frequency_modifier > 365" do
+        expect { resource.send(:validate_create_frequency_modifier, :daily, 366) }.to raise_error("frequency_modifier value 366 is invalid.  Valid values for :daily frequency are 1 - 365.")
+      end
+    end
+
+    context "when frequency is :weekly" do
+      it "raises error if frequency_modifier > 52" do
+        expect { resource.send(:validate_create_frequency_modifier, :weekly, 53) }.to raise_error("frequency_modifier value 53 is invalid.  Valid values for :weekly frequency are 1 - 52.")
+      end
+    end
+
+    context "when frequency is :monthly" do
+      it "raises error if frequency_modifier > 12" do
+        expect { resource.send(:validate_create_frequency_modifier, :monthly, 14) }.to raise_error("frequency_modifier value 14 is invalid.  Valid values for :monthly frequency are 1 - 12, 'FIRST', 'SECOND', 'THIRD', 'FOURTH', 'LAST', 'LASTDAY'.")
+      end
+
+      it "raises error if frequency_modifier is invalid" do
+        expect { resource.send(:validate_create_frequency_modifier, :monthly, "abc") }.to raise_error("frequency_modifier value abc is invalid.  Valid values for :monthly frequency are 1 - 12, 'FIRST', 'SECOND', 'THIRD', 'FOURTH', 'LAST', 'LASTDAY'.")
+      end
+    end
+  end
+
+  context "#validate_create_day" do
+    it "raises error if frequency is not :weekly" do
+      expect  { resource.send(:validate_create_day, "Mon", :monthly) }.to raise_error("day attribute is only valid for tasks that run weekly")
+    end
+
+    it "accepts a valid single day" do
+      expect  { resource.send(:validate_create_day, "Mon", :weekly) }.not_to raise_error
+    end
+
+    it "accepts a comma separated list of valid days" do
+      expect  { resource.send(:validate_create_day, "Mon, tue, THU", :weekly) }.not_to raise_error
+    end
+
+    it "raises error for invalid day value" do
+      expect  { resource.send(:validate_create_day, "xyz", :weekly) }.to raise_error("day attribute invalid.  Only valid values are: MON, TUE, WED, THU, FRI, SAT, SUN and *.  Multiple values must be separated by a comma.")
+    end
+  end
+
+  context "#validate_create_months" do
+    it "raises error if frequency is not :monthly" do
+      expect  { resource.send(:validate_create_months, "Jan", :once) }.to raise_error("months attribute is only valid for tasks that run monthly")
+    end
+
+    it "accepts a valid single month" do
+      expect  { resource.send(:validate_create_months, "Feb", :monthly) }.not_to raise_error
+    end
+
+    it "accepts a comma separated list of valid months" do
+      expect  { resource.send(:validate_create_months, "Jan, mar, AUG", :monthly) }.not_to raise_error
+    end
+
+    it "raises error for invalid month value" do
+      expect  { resource.send(:validate_create_months, "xyz", :monthly) }.to raise_error("months attribute invalid. Only valid values are: JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC and *. Multiple values must be separated by a comma.")
+    end
+  end
+
+  context "#validate_idle_time" do
+    it "raises error if frequency is not :on_idle" do
+      expect  { resource.send(:validate_idle_time, 5, :hourly) }.to raise_error("idle_time attribute is only valid for tasks that run on_idle")
+    end
+
+    it "raises error if idle_time > 999" do
+      expect  { resource.send(:validate_idle_time, 1000, :on_idle) }.to raise_error("idle_time value 1000 is invalid.  Valid values for :on_idle frequency are 1 - 999.")
+    end
+  end
+end