#
# Author:: Adam Edwards (<adamed@chef.io>)
# Copyright:: Copyright (c) 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::PowershellScript, "action_run" do

  let(:powershell_version) { nil }
  let(:node) do
    node = Chef::Node.new
    node.default["kernel"] = {}
    node.default["kernel"][:machine] = :x86_64.to_s
    unless powershell_version.nil?
      node.default[:languages] = { powershell: { version: powershell_version } }
    end
    node
  end

  # code block is mandatory for the powershell provider
  let(:code) { "" }

  let(:events) { Chef::EventDispatch::Dispatcher.new }

  let(:run_context) { run_context = Chef::RunContext.new(node, {}, events) }

  let(:new_resource) do
    new_resource = Chef::Resource::PowershellScript.new("run some powershell code", run_context)
    new_resource.code code
    new_resource
  end

  def set_user_defined_flag
    new_resource.flags "-ExecutionPolicy RemoteSigned"
    provider
  end

  let(:provider) do
    Chef::Provider::PowershellScript.new(new_resource, run_context)
  end

  context "when setting interpreter flags" do
    before(:each) do
      allow(provider).to receive(:is_forced_32bit).and_return(false)
      os_info_double = double("os_info")
      allow(provider.run_context.node["kernel"]).to receive(:[]).with("os_info").and_return(os_info_double)
      allow(os_info_double).to receive(:[]).with("system_directory").and_return("C:\\Windows\\system32")
    end

    it "sets the -File flag as the last flag" do
      flags = provider.command.split(" ").keep_if { |flag| flag =~ /^-/ }
      expect(flags.pop).to eq("-File")
    end

    let(:execution_policy_flag) do
      provider_flags = provider.flags.split(" ")
      # Last occurance of "executionpolicy"
      execution_policy_index = provider_flags.map(&:downcase).rindex("-executionpolicy")

      execution_policy_index ? provider_flags[execution_policy_index + 1] : nil
    end

    it "sets default -ExecutionPolicy flag to 'Bypass'" do
      expect(execution_policy_flag).to eq("Bypass")
    end

    it "sets user defined -ExecutionPolicy flag to 'RemoteSigned'" do
      set_user_defined_flag
      expect(execution_policy_flag).to eq("RemoteSigned")
    end
  end
end