#
# Author:: Salim Alam (<salam@chef.io>)
# Copyright:: Copyright (c) 2015 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 File.expand_path(File.dirname(__FILE__) + '/../../../spec_helper.rb')

shared_examples 'a cpu' do |cpu_no|
  describe "cpu #{cpu_no}" do
    it "should set physical_id to CPU#{cpu_no}" do
      expect(@plugin[:cpu]["#{cpu_no}"][:physical_id]).to eq("CPU#{cpu_no}")
    end

    it 'should set mhz to 2793' do
      expect(@plugin[:cpu]["#{cpu_no}"][:mhz]).to eq('2793')
    end

    it 'should set vendor_id to GenuineIntel' do
      expect(@plugin[:cpu]["#{cpu_no}"][:vendor_id]).to eq('GenuineIntel')
    end

    it 'should set model_name to Intel64 Family 6 Model 70 Stepping 1' do
      expect(@plugin[:cpu]["#{cpu_no}"][:model_name])
        .to eq('Intel64 Family 6 Model 70 Stepping 1')
    end

    it 'should set model to 17921' do
      expect(@plugin[:cpu]["#{cpu_no}"][:model]).to eq('17921')
    end

    it 'should set family to 2' do
      expect(@plugin[:cpu]["#{cpu_no}"][:family]).to eq('2')
    end

    it 'should set stepping to 9' do
      expect(@plugin[:cpu]["#{cpu_no}"][:stepping]).to eq(9)
    end

    it 'should set cache_size to 64 KB' do
      expect(@plugin[:cpu]["#{cpu_no}"][:cache_size]).to eq('64 KB')
    end
  end
end

describe Ohai::System, 'Windows cpu plugin' do
  before(:each) do
    @plugin = get_plugin('windows/cpu')
    allow(@plugin).to receive(:collect_os).and_return(:windows)

    @double_wmi = double(WmiLite::Wmi)
    @double_wmi_instance = instance_double(WmiLite::Wmi)

    @processors = [{ 'description' => 'Intel64 Family 6 Model 70 Stepping 1',
                     'deviceid' => 'CPU0',
                     'family' => 2,
                     'l2cachesize' => 0,
                     'manufacturer' => 'GenuineIntel',
                     'maxclockspeed' => 2793,
                     'numberofcores' => 1,
                     'numberoflogicalprocessors' => 2,
                     'revision' => 17_921,
                     'stepping' => 9,
                     'l2cachesize' => 64 },

                   { 'description' => 'Intel64 Family 6 Model 70 Stepping 1',
                     'deviceid' => 'CPU1',
                     'family' => 2,
                     'l2cachesize' => 0,
                     'manufacturer' => 'GenuineIntel',
                     'maxclockspeed' => 2793,
                     'numberofcores' => 1,
                     'numberoflogicalprocessors' => 2,
                     'revision' => 17_921,
                     'stepping' => 9,
                     'l2cachesize' => 64 }]

    allow(WmiLite::Wmi).to receive(:new).and_return(@double_wmi_instance)

    allow(@double_wmi_instance).to receive(:instances_of)
      .with('Win32_Processor')
      .and_return(@processors)

    @plugin.run
  end

  it 'should set total cpu to 2' do
    expect(@plugin[:cpu][:total]).to eq(4)
  end

  it 'should set real cpu to 2' do
    expect(@plugin[:cpu][:real]).to eq(2)
  end

  it 'should set 2 distinct cpus numbered 0 and 1' do
    expect(@plugin[:cpu]).to have_key('0')
    expect(@plugin[:cpu]).to have_key('1')
  end

  it_behaves_like 'a cpu', 0
  it_behaves_like 'a cpu', 1
end
