#
# Author:: Sander van Harmelen <svanharmelen@schubergphilis.com>
# Copyright:: Copyright (c) 2014 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::Env::Windows, :windows_only do
  let(:node) { Chef::Node.new }
  let(:events) {Chef::EventDispatch::Dispatcher.new }
  let(:run_context) { Chef::RunContext.new(node, {}, events) }

  context 'when environment variable is not PATH' do
    let(:new_resource) {
      new_resource = Chef::Resource::Env.new("CHEF_WINDOWS_ENV_TEST")
      new_resource.value("foo")
      new_resource
    }
    let(:provider) { 
      provider = Chef::Provider::Env::Windows.new(new_resource, run_context) 
      provider.stub(:env_obj).and_return(double('null object').as_null_object)
      provider
    }

    describe "action_create" do
      before do
        ENV.delete('CHEF_WINDOWS_ENV_TEST')
        provider.key_exists = false
      end

      it "should update the ruby ENV object when it creates the key" do
        provider.action_create
        expect(ENV['CHEF_WINDOWS_ENV_TEST']).to eql('foo')
      end
    end

    describe "action_modify" do
      before do
        ENV['CHEF_WINDOWS_ENV_TEST'] = 'foo'
      end

      it "should update the ruby ENV object when it updates the value" do
        provider.should_receive(:compare_value).and_return(true)
        new_resource.value("foobar")
        provider.action_modify
        expect(ENV['CHEF_WINDOWS_ENV_TEST']).to eql('foobar')
      end

      describe "action_delete" do
        before do
          ENV['CHEF_WINDOWS_ENV_TEST'] = 'foo'
        end

        it "should update the ruby ENV object when it deletes the key" do
          provider.action_delete
          expect(ENV['CHEF_WINDOWS_ENV_TEST']).to eql(nil)
        end
      end
    end
  end

  context 'when environment is PATH' do
    describe "for PATH" do
      let(:system_root) {'%SystemRoot%'}
      let(:system_root_value) { 'D:\Windows' }
      let(:new_resource) {
        new_resource = Chef::Resource::Env.new('PATH')
        new_resource.value(system_root)
        new_resource
      }
      let(:provider) { 
        provider = Chef::Provider::Env::Windows.new(new_resource, run_context) 
        provider.stub(:env_obj).and_return(double('null object').as_null_object)
        provider
      }

      before do
        stub_const('ENV', {'PATH' => ''})
      end

      it "replaces Windows system variables" do
        provider.should_receive(:compare_value).and_return(true)
        provider.should_receive(:expand_path).with(system_root).and_return(system_root_value)
        provider.action_modify
        expect(ENV['PATH']).to eql(system_root_value)
      end
    end

  end
end