#
# Author:: Chris Doherty <cdoherty@chef.io>)
# Copyright:: Copyright 2014-2016, Chef, 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::Reboot do

  let(:expected) do
    {
      delay_mins: 5,
      requested_by: "reboot resource functional test",
      reason: "reboot resource spec test",
    }
  end

  def create_resource
    node = Chef::Node.new
    events = Chef::EventDispatch::Dispatcher.new
    run_context = Chef::RunContext.new(node, {}, events)
    resource = Chef::Resource::Reboot.new(expected[:requested_by], run_context)
    resource.delay_mins(expected[:delay_mins])
    resource.reason(expected[:reason])
    resource
  end

  let(:resource) do
    create_resource
  end

  shared_context "testing run context modification" do
    def test_reboot_action(resource)
      reboot_info = resource.run_context.reboot_info
      expect(reboot_info.keys.sort).to eq(%i{delay_mins reason requested_by timestamp})
      expect(reboot_info[:delay_mins]).to eq(expected[:delay_mins])
      expect(reboot_info[:reason]).to eq(expected[:reason])
      expect(reboot_info[:requested_by]).to eq(expected[:requested_by])

      expect(resource.run_context.reboot_requested?).to be_truthy
    end
  end

  # the currently defined behavior for multiple calls to this resource is "last one wins."
  describe "the request_reboot_on_successful_run action" do
    include_context "testing run context modification"

    before do
      resource.run_action(:request_reboot)
    end

    after do
      resource.run_context.cancel_reboot
    end

    it "should have modified the run context correctly" do
      test_reboot_action(resource)
    end
  end

  describe "the reboot_interrupt_run action" do
    include_context "testing run context modification"

    after do
      resource.run_context.cancel_reboot
    end

    it "should have modified the run context correctly" do
      # this doesn't actually test the flow of Chef::Client#do_run, unfortunately.
      expect do
        resource.run_action(:reboot_now)
      end.to throw_symbol(:end_client_run_early)

      test_reboot_action(resource)
    end
  end

  describe "the cancel action" do
    before do
      resource.run_context.request_reboot(expected)
      resource.run_action(:cancel)
    end

    it "should have cleared the reboot request" do
      # arguably we shouldn't be querying RunContext's internal data directly.
      expect(resource.run_context.reboot_info).to eq({})
      expect(resource.run_context.reboot_requested?).to be_falsey
    end
  end
end
