#
# Author:: Adam Jacob (<adam@chef.io>)
# Author:: Kyle Goodwin (<kgoodwin@primerevenue.com>)
# 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"
require "chef-config/config"

RSpec.describe ChefConfig::Config do
  before(:each) do
    ChefConfig::Config.reset

    # By default, treat deprecation warnings as errors in tests.
    ChefConfig::Config.treat_deprecation_warnings_as_errors(true)

    # Set environment variable so the setting persists in child processes
    ENV["CHEF_TREAT_DEPRECATION_WARNINGS_AS_ERRORS"] = "1"
  end

  describe "config attribute writer: chef_server_url" do
    before do
      ChefConfig::Config.chef_server_url = "https://junglist.gen.nz"
    end

    it "sets the server url" do
      expect(ChefConfig::Config.chef_server_url).to eq("https://junglist.gen.nz")
    end

    context "when the url has a leading space" do
      before do
        ChefConfig::Config.chef_server_url = " https://junglist.gen.nz"
      end

      it "strips the space from the url when setting" do
        expect(ChefConfig::Config.chef_server_url).to eq("https://junglist.gen.nz")
      end

    end

    context "when the url is a frozen string" do
      before do
        ChefConfig::Config.chef_server_url = " https://junglist.gen.nz".freeze
      end

      it "strips the space from the url when setting without raising an error" do
        expect(ChefConfig::Config.chef_server_url).to eq("https://junglist.gen.nz")
      end
    end

    context "when the url is invalid" do
      it "raises an exception" do
        expect { ChefConfig::Config.chef_server_url = "127.0.0.1" }.to raise_error(ChefConfig::ConfigurationError)
      end
    end
  end

  describe "parsing arbitrary config from the CLI" do

    def apply_config
      described_class.apply_extra_config_options(extra_config_options)
    end

    context "when no arbitrary config is given" do

      let(:extra_config_options) { nil }

      it "succeeds" do
        expect { apply_config }.to_not raise_error
      end

    end

    context "when given a simple string option" do

      let(:extra_config_options) { [ "node_name=bobotclown" ] }

      it "applies the string option" do
        apply_config
        expect(described_class[:node_name]).to eq("bobotclown")
      end

    end

    context "when given a blank value" do

      let(:extra_config_options) { [ "http_retries=" ] }

      it "sets the value to nil" do
        # ensure the value is actually changed in the test
        described_class[:http_retries] = 55
        apply_config
        expect(described_class[:http_retries]).to eq(nil)
      end
    end

    context "when given spaces between `key = value`" do

      let(:extra_config_options) { [ "node_name = bobo" ] }

      it "handles the extra spaces and applies the config option" do
        apply_config
        expect(described_class[:node_name]).to eq("bobo")
      end

    end

    context "when given an integer value" do

      let(:extra_config_options) { [ "http_retries=9000" ] }

      it "converts to a numeric type and applies the config option" do
        apply_config
        expect(described_class[:http_retries]).to eq(9000)
      end

    end

    context "when given a boolean" do

      let(:extra_config_options) { [ "boolean_thing=true" ] }

      it "converts to a boolean type and applies the config option" do
        apply_config
        expect(described_class[:boolean_thing]).to eq(true)
      end

    end

    context "when given input that is not in key=value form" do

      let(:extra_config_options) { [ "http_retries:9000" ] }

      it "raises UnparsableConfigOption" do
        message = 'Unparsable config option "http_retries:9000"'
        expect { apply_config }.to raise_error(ChefConfig::UnparsableConfigOption, message)
      end

    end

    describe "expand relative paths" do
      let(:current_directory) { Dir.pwd }

      context "when given cookbook_path" do
        let(:extra_config_options) { [ "cookbook_path=cookbooks/" ] }

        it "expanded cookbook_path" do
          apply_config
          expect(described_class[:cookbook_path]).to eq("#{current_directory}/cookbooks")
        end
      end

      context "when passes multiple config options" do
        let(:extra_config_options) { ["data_bag_path=data_bags/", "cookbook_path=cookbooks", "chef_repo_path=."] }

        it "expanded paths" do
          apply_config
          expect(described_class[:data_bag_path]).to eq("#{current_directory}/data_bags")
          expect(described_class[:cookbook_path]).to eq("#{current_directory}/cookbooks")
          expect(described_class[:chef_repo_path]).to eq(current_directory)
        end
      end

      context "when passes multiple cookbook_paths in config options" do
        let(:extra_config_options) { ["cookbook_path=[first_cookbook, second_cookbooks]"] }

        it "expanded paths" do
          apply_config
          expect(described_class[:cookbook_path]).to eq(["#{current_directory}/first_cookbook", "#{current_directory}/second_cookbooks"])
        end
      end
    end
  end

  describe "when configuring formatters" do
    # if TTY and not(force-logger)
    #   formatter = configured formatter or default formatter
    #   formatter goes to STDOUT/ERR
    #   if log file is writeable
    #     log level is configured level or info
    #     log location is file
    #   else
    #     log level is warn
    #     log location is STDERR
    #    end
    # elsif not(TTY) and force formatter
    #   formatter = configured formatter or default formatter
    #   if log_location specified
    #     formatter goes to log_location
    #   else
    #     formatter goes to STDOUT/ERR
    #   end
    # else
    #   formatter = "null"
    #   log_location = configured-value or default
    #   log_level = info or default
    # end
    #
    it "has an empty list of formatters by default" do
      expect(ChefConfig::Config.formatters).to eq([])
    end

    it "configures a formatter with a short name" do
      ChefConfig::Config.add_formatter(:doc)
      expect(ChefConfig::Config.formatters).to eq([[:doc, nil]])
    end

    it "configures a formatter with a file output" do
      ChefConfig::Config.add_formatter(:doc, "/var/log/formatter.log")
      expect(ChefConfig::Config.formatters).to eq([[:doc, "/var/log/formatter.log"]])
    end
  end

  describe "#var_chef_path" do
    let (:dirname) { ChefUtils::Dist::Infra::DIR_SUFFIX }

    context "on unix", :unix_only do
      it "var_chef_dir is /var/chef" do
        expect(ChefConfig::Config.var_chef_dir).to eql("/var/#{dirname}")
      end

      it "var_root_dir is /var" do
        expect(ChefConfig::Config.var_root_dir).to eql("/var")
      end

      it "etc_chef_dir is /etc/chef" do
        expect(ChefConfig::Config.etc_chef_dir).to eql("/etc/#{dirname}")
      end
    end

    context "on windows", :windows_only do
      it "var_chef_dir is C:\\chef" do
        expect(ChefConfig::Config.var_chef_dir).to eql("C:\\#{dirname}")
      end

      it "var_root_dir is C:\\" do
        expect(ChefConfig::Config.var_root_dir).to eql("C:\\")
      end

      it "etc_chef_dir is C:\\chef" do
        expect(ChefConfig::Config.etc_chef_dir).to eql("C:\\#{dirname}")
      end
    end

    context "when forced to unix" do
      it "var_chef_dir is /var/chef" do
        expect(ChefConfig::Config.var_chef_dir(windows: false)).to eql("/var/#{dirname}")
      end

      it "var_root_dir is /var" do
        expect(ChefConfig::Config.var_root_dir(windows: false)).to eql("/var")
      end

      it "etc_chef_dir is /etc/chef" do
        expect(ChefConfig::Config.etc_chef_dir(windows: false)).to eql("/etc/#{dirname}")
      end
    end

    context "when forced to windows" do
      it "var_chef_dir is C:\\chef" do
        expect(ChefConfig::Config.var_chef_dir(windows: true)).to eql("C:\\#{dirname}")
      end

      it "var_root_dir is C:\\" do
        expect(ChefConfig::Config.var_root_dir(windows: true)).to eql("C:\\")
      end

      it "etc_chef_dir is C:\\chef" do
        expect(ChefConfig::Config.etc_chef_dir(windows: true)).to eql("C:\\#{dirname}")
      end
    end
  end

  [ false, true ].each do |is_windows|
    context "On #{is_windows ? "Windows" : "Unix"}" do
      before :each do
        allow(ChefUtils).to receive(:windows?).and_return(is_windows)
      end
      describe "class method: windows_installation_drive" do
        before do
          allow(File).to receive(:expand_path).and_return("D:/Path/To/Executable")
        end
        if is_windows
          it "should return D: on a windows system" do
            expect(ChefConfig::Config.windows_installation_drive).to eq("D:")
          end
        else
          it "should return nil on a non-windows system" do
            expect(ChefConfig::Config.windows_installation_drive).to eq(nil)
          end
        end
      end
      describe "class method: platform_specific_path" do
        before do
          allow(ChefConfig::Config).to receive(:env).and_return({ "SYSTEMDRIVE" => "C:" })
        end
        if is_windows
          path = "/etc/chef/cookbooks"
          context "a windows system with chef installed on C: drive" do
            before do
              allow(ChefConfig::Config).to receive(:windows_installation_drive).and_return("C:")
            end
            it "should return a windows path rooted in C:" do
              expect(ChefConfig::Config.platform_specific_path(path)).to eq("C:\\chef\\cookbooks")
            end
          end
          context "a windows system with chef installed on D: drive" do
            before do
              allow(ChefConfig::Config).to receive(:windows_installation_drive).and_return("D:")
            end
            it "should return a windows path rooted in D:" do
              expect(ChefConfig::Config.platform_specific_path(path)).to eq("D:\\chef\\cookbooks")
            end
          end
        else
          it "should return given path on non-windows systems" do
            path = "/etc/chef/cookbooks"
            expect(ChefConfig::Config.platform_specific_path(path)).to eq("/etc/chef/cookbooks")
          end
        end
      end

      describe "default values" do
        let(:system_drive) { ChefConfig::Config.env["SYSTEMDRIVE"] } if is_windows
        let :primary_cache_path do
          if is_windows
            "#{system_drive}\\chef"
          else
            "/var/chef"
          end
        end

        let :secondary_cache_path do
          if is_windows
            "#{ChefConfig::Config[:user_home]}\\.chef"
          else
            "#{ChefConfig::Config[:user_home]}/.chef"
          end
        end

        before do
          if is_windows
            allow(ChefConfig::Config).to receive(:env).and_return({ "SYSTEMDRIVE" => "C:" })
            ChefConfig::Config[:user_home] = 'C:\Users\charlie'
          else
            ChefConfig::Config[:user_home] = "/Users/charlie"
          end

          allow(ChefConfig::Config).to receive(:path_accessible?).and_return(false)
        end

        describe "ChefConfig::Config[:client_key]" do
          let(:path_to_client_key) { ChefConfig::Config.etc_chef_dir + ChefConfig::PathHelper.path_separator }

          it "sets the default path to the client key" do
            expect(ChefConfig::Config.client_key).to eq(path_to_client_key + "client.pem")
          end

          context "when target mode is enabled" do
            let(:target_mode_host) { "fluffy.kittens.org" }

            before do
              ChefConfig::Config.target_mode.enabled = true
              ChefConfig::Config.target_mode.host = target_mode_host
            end

            it "sets the default path to the client key with the target host name" do
              expect(ChefConfig::Config.client_key).to eq(path_to_client_key + target_mode_host + ChefConfig::PathHelper.path_separator + "client.pem")
            end
          end

          context "when local mode is enabled" do
            before { ChefConfig::Config[:local_mode] = true }

            it "returns nil" do
              expect(ChefConfig::Config.client_key).to be_nil
            end
          end
        end

        describe "ChefConfig::Config[:fips]" do
          let(:fips_enabled) { false }

          before(:all) do
            @original_env = ENV.to_hash
          end

          after(:all) do
            ENV.clear
            ENV.update(@original_env)
          end

          before(:each) do
            ENV["CHEF_FIPS"] = nil
            allow(ChefConfig).to receive(:fips?).and_return(fips_enabled)
          end

          it "returns false when no environment is set and not enabled on system" do
            expect(ChefConfig::Config[:fips]).to eq(false)
          end

          context "when ENV['CHEF_FIPS'] is empty" do
            before do
              ENV["CHEF_FIPS"] = ""
            end

            it "returns false" do
              expect(ChefConfig::Config[:fips]).to eq(false)
            end
          end

          context "when ENV['CHEF_FIPS'] is set" do
            before do
              ENV["CHEF_FIPS"] = "1"
            end

            it "returns true" do
              expect(ChefConfig::Config[:fips]).to eq(true)
            end
          end

          context "when fips is enabled on system" do
            let(:fips_enabled) { true }

            it "returns true" do
              expect(ChefConfig::Config[:fips]).to eq(true)
            end
          end
        end

        describe "ChefConfig::Config[:chef_server_root]" do
          context "when chef_server_url isn't set manually" do
            it "returns the default of 'https://localhost:443'" do
              expect(ChefConfig::Config[:chef_server_root]).to eq("https://localhost:443")
            end
          end

          context "when chef_server_url matches '../organizations/*' without a trailing slash" do
            before do
              ChefConfig::Config[:chef_server_url] = "https://example.com/organizations/myorg"
            end
            it "returns the full URL without /organizations/*" do
              expect(ChefConfig::Config[:chef_server_root]).to eq("https://example.com")
            end
          end

          context "when chef_server_url matches '../organizations/*' with a trailing slash" do
            before do
              ChefConfig::Config[:chef_server_url] = "https://example.com/organizations/myorg/"
            end
            it "returns the full URL without /organizations/*" do
              expect(ChefConfig::Config[:chef_server_root]).to eq("https://example.com")
            end
          end

          context "when chef_server_url matches '..organizations..' but not '../organizations/*'" do
            before do
              ChefConfig::Config[:chef_server_url] = "https://organizations.com/organizations"
            end
            it "returns the full URL without any modifications" do
              expect(ChefConfig::Config[:chef_server_root]).to eq(ChefConfig::Config[:chef_server_url])
            end
          end

          context "when chef_server_url is a standard URL without the string organization(s)" do
            before do
              ChefConfig::Config[:chef_server_url] = "https://example.com/some_other_string"
            end
            it "returns the full URL without any modifications" do
              expect(ChefConfig::Config[:chef_server_root]).to eq(ChefConfig::Config[:chef_server_url])
            end
          end
        end

        describe "ChefConfig::Config[:cache_path]" do
          let(:target_mode_host) { "fluffy.kittens.org" }
          let(:target_mode_primary_cache_path) { ChefUtils.windows? ? "#{primary_cache_path}\\#{target_mode_host}" : "#{primary_cache_path}/#{target_mode_host}" }
          let(:target_mode_secondary_cache_path) { ChefUtils.windows? ? "#{secondary_cache_path}\\#{target_mode_host}" : "#{secondary_cache_path}/#{target_mode_host}" }

          before do
            if is_windows
              allow(File).to receive(:expand_path).and_return("#{system_drive}/Path/To/Executable")
            end
          end

          context "when /var/chef exists and is accessible" do
            before do
              allow(ChefConfig::Config).to receive(:path_accessible?).with(ChefConfig::Config.var_chef_dir).and_return(true)
            end

            it "defaults to /var/chef" do
              expect(ChefConfig::Config[:cache_path]).to eq(primary_cache_path)
            end

            context "and target mode is enabled" do
              it "cache path includes the target host name" do
                ChefConfig::Config.target_mode.enabled = true
                ChefConfig::Config.target_mode.host = target_mode_host
                expect(ChefConfig::Config[:cache_path]).to eq(target_mode_primary_cache_path)
              end
            end
          end

          context "when /var/chef does not exist and /var is accessible" do
            it "defaults to /var/chef" do
              allow(File).to receive(:exists?).with(ChefConfig::Config.var_chef_dir).and_return(false)
              allow(ChefConfig::Config).to receive(:path_accessible?).with(ChefConfig::Config.var_root_dir).and_return(true)
              expect(ChefConfig::Config[:cache_path]).to eq(primary_cache_path)
            end
          end

          context "when /var/chef does not exist and /var is not accessible" do
            it "defaults to $HOME/.chef" do
              allow(File).to receive(:exists?).with(ChefConfig::Config.var_chef_dir).and_return(false)
              allow(ChefConfig::Config).to receive(:path_accessible?).with(ChefConfig::Config.var_root_dir).and_return(false)
              expect(ChefConfig::Config[:cache_path]).to eq(secondary_cache_path)
            end
          end

          context "when /var/chef exists and is not accessible" do
            before do
              allow(File).to receive(:exists?).with(ChefConfig::Config.var_chef_dir).and_return(true)
              allow(File).to receive(:readable?).with(ChefConfig::Config.var_chef_dir).and_return(true)
              allow(File).to receive(:writable?).with(ChefConfig::Config.var_chef_dir).and_return(false)
            end

            it "defaults to $HOME/.chef" do
              expect(ChefConfig::Config[:cache_path]).to eq(secondary_cache_path)
            end

            context "and target mode is enabled" do
              it "cache path defaults to $HOME/.chef with the target host name" do
                ChefConfig::Config.target_mode.enabled = true
                ChefConfig::Config.target_mode.host = target_mode_host
                expect(ChefConfig::Config[:cache_path]).to eq(target_mode_secondary_cache_path)
              end
            end
          end

          context "when chef is running in local mode" do
            before do
              ChefConfig::Config.local_mode = true
            end

            context "and config_dir is /a/b/c" do
              before do
                ChefConfig::Config.config_dir ChefConfig::PathHelper.cleanpath("/a/b/c")
              end

              it "cache_path is /a/b/c/local-mode-cache" do
                expect(ChefConfig::Config.cache_path).to eq(ChefConfig::PathHelper.cleanpath("/a/b/c/local-mode-cache"))
              end
            end

            context "and config_dir is /a/b/c/" do
              before do
                ChefConfig::Config.config_dir ChefConfig::PathHelper.cleanpath("/a/b/c/")
              end

              it "cache_path is /a/b/c/local-mode-cache" do
                expect(ChefConfig::Config.cache_path).to eq(ChefConfig::PathHelper.cleanpath("/a/b/c/local-mode-cache"))
              end
            end
          end
        end

        it "ChefConfig::Config[:stream_execute_output] defaults to false" do
          expect(ChefConfig::Config[:stream_execute_output]).to eq(false)
        end

        it "ChefConfig::Config[:show_download_progress] defaults to false" do
          expect(ChefConfig::Config[:show_download_progress]).to eq(false)
        end

        it "ChefConfig::Config[:download_progress_interval] defaults to every 10%" do
          expect(ChefConfig::Config[:download_progress_interval]).to eq(10)
        end

        it "ChefConfig::Config[:file_backup_path] defaults to /var/chef/backup" do
          allow(ChefConfig::Config).to receive(:cache_path).and_return(primary_cache_path)
          backup_path = is_windows ? "#{primary_cache_path}\\backup" : "#{primary_cache_path}/backup"
          expect(ChefConfig::Config[:file_backup_path]).to eq(backup_path)
        end

        it "ChefConfig::Config[:ssl_verify_mode] defaults to :verify_peer" do
          expect(ChefConfig::Config[:ssl_verify_mode]).to eq(:verify_peer)
        end

        it "ChefConfig::Config[:ssl_ca_path] defaults to nil" do
          expect(ChefConfig::Config[:ssl_ca_path]).to be_nil
        end

        describe "ChefConfig::Config[:repo_mode]" do

          context "when local mode is enabled" do

            before { ChefConfig::Config[:local_mode] = true }

            it "defaults to 'hosted_everything'" do
              expect(ChefConfig::Config[:repo_mode]).to eq("hosted_everything")
            end

            context "and osc_compat is enabled" do

              before { ChefConfig::Config.chef_zero.osc_compat = true }

              it "defaults to 'everything'" do
                expect(ChefConfig::Config[:repo_mode]).to eq("everything")
              end
            end
          end

          context "when local mode is not enabled" do

            context "and the chef_server_url is multi-tenant" do

              before { ChefConfig::Config[:chef_server_url] = "https://chef.example/organizations/example" }

              it "defaults to 'hosted_everything'" do
                expect(ChefConfig::Config[:repo_mode]).to eq("hosted_everything")
              end

            end

            context "and the chef_server_url is not multi-tenant" do

              before { ChefConfig::Config[:chef_server_url] = "https://chef.example/" }

              it "defaults to 'everything'" do
                expect(ChefConfig::Config[:repo_mode]).to eq("everything")
              end
            end
          end
        end

        describe "ChefConfig::Config[:chef_repo_path]" do

          context "when cookbook_path is set to a single path" do

            before { ChefConfig::Config[:cookbook_path] = "/home/anne/repo/cookbooks" }

            it "is set to a path one directory up from the cookbook_path" do
              expected = File.expand_path("/home/anne/repo")
              expect(ChefConfig::Config[:chef_repo_path]).to eq(expected)
            end

          end

          context "when cookbook_path is set to multiple paths" do

            before do
              ChefConfig::Config[:cookbook_path] = [
                "/home/anne/repo/cookbooks",
                "/home/anne/other_repo/cookbooks",
              ]
            end

            it "is set to an Array of paths one directory up from the cookbook_paths" do
              expected = [ "/home/anne/repo", "/home/anne/other_repo"].map { |p| File.expand_path(p) }
              expect(ChefConfig::Config[:chef_repo_path]).to eq(expected)
            end

          end

          context "when cookbook_path is not set but cookbook_artifact_path is set" do

            before do
              ChefConfig::Config[:cookbook_path] = nil
              ChefConfig::Config[:cookbook_artifact_path] = "/home/roxie/repo/cookbook_artifacts"
            end

            it "is set to a path one directory up from the cookbook_artifact_path" do
              expected = File.expand_path("/home/roxie/repo")
              expect(ChefConfig::Config[:chef_repo_path]).to eq(expected)
            end

          end

          context "when cookbook_path is not set" do

            before { ChefConfig::Config[:cookbook_path] = nil }

            it "is set to the cache_path" do
              expect(ChefConfig::Config[:chef_repo_path]).to eq(ChefConfig::Config[:cache_path])
            end

          end

        end

        # On Windows, we'll detect an omnibus build and set this to the
        # cacert.pem included in the package, but it's nil if you're on Windows
        # w/o omnibus (e.g., doing development on Windows, custom build, etc.)
        unless is_windows
          it "ChefConfig::Config[:ssl_ca_file] defaults to nil" do
            expect(ChefConfig::Config[:ssl_ca_file]).to be_nil
          end
        end

        it "ChefConfig::Config[:data_bag_path] defaults to /var/chef/data_bags" do
          allow(ChefConfig::Config).to receive(:cache_path).and_return(primary_cache_path)
          data_bag_path = is_windows ? "#{primary_cache_path}\\data_bags" : "#{primary_cache_path}/data_bags"
          expect(ChefConfig::Config[:data_bag_path]).to eq(data_bag_path)
        end

        it "ChefConfig::Config[:environment_path] defaults to /var/chef/environments" do
          allow(ChefConfig::Config).to receive(:cache_path).and_return(primary_cache_path)
          environment_path = is_windows ? "#{primary_cache_path}\\environments" : "#{primary_cache_path}/environments"
          expect(ChefConfig::Config[:environment_path]).to eq(environment_path)
        end

        it "ChefConfig::Config[:cookbook_artifact_path] defaults to /var/chef/cookbook_artifacts" do
          allow(ChefConfig::Config).to receive(:cache_path).and_return(primary_cache_path)
          environment_path = is_windows ? "#{primary_cache_path}\\cookbook_artifacts" : "#{primary_cache_path}/cookbook_artifacts"
          expect(ChefConfig::Config[:cookbook_artifact_path]).to eq(environment_path)
        end

        describe "setting the config dir" do

          context "when the config file is given with a relative path" do

            before do
              ChefConfig::Config.config_file = "client.rb"
            end

            it "expands the path when determining config_dir" do
              # config_dir goes through ChefConfig::PathHelper.canonical_path, which
              # downcases on windows because the FS is case insensitive, so we
              # have to downcase expected and actual to make the tests work.
              expect(ChefConfig::Config.config_dir.downcase).to eq(ChefConfig::PathHelper.cleanpath(Dir.pwd).downcase)
            end

            it "does not set derived paths at FS root" do
              ChefConfig::Config.local_mode = true
              expect(ChefConfig::Config.cache_path.downcase).to eq(ChefConfig::PathHelper.cleanpath(File.join(Dir.pwd, "local-mode-cache")).downcase)
            end

          end

          context "when the config file is /etc/chef/client.rb" do

            before do
              config_location = ChefConfig::PathHelper.cleanpath(ChefConfig::PathHelper.join(ChefConfig::Config.etc_chef_dir, "client.rb")).downcase
              allow(File).to receive(:absolute_path).with(config_location).and_return(config_location)
              ChefConfig::Config.config_file = config_location
            end

            it "config_dir is /etc/chef" do
              expect(ChefConfig::Config.config_dir).to eq(ChefConfig::Config.etc_chef_dir.downcase)
            end

            context "and chef is running in local mode" do
              before do
                ChefConfig::Config.local_mode = true
              end

              it "config_dir is /etc/chef" do
                expect(ChefConfig::Config.config_dir).to eq(ChefConfig::Config.etc_chef_dir.downcase)
              end
            end

            context "when config_dir is set to /other/config/dir/" do
              before do
                ChefConfig::Config.config_dir = ChefConfig::PathHelper.cleanpath("/other/config/dir/")
              end

              it "yields the explicit value" do
                expect(ChefConfig::Config.config_dir).to eq(ChefConfig::PathHelper.cleanpath("/other/config/dir/"))
              end
            end

          end

          context "when the user's home dir is /home/charlie/" do
            before do
              ChefConfig::Config.user_home = "/home/charlie/"
            end

            it "config_dir is /home/charlie/.chef/" do
              expect(ChefConfig::Config.config_dir).to eq(ChefConfig::PathHelper.join(ChefConfig::PathHelper.cleanpath("/home/charlie/"), ".chef", ""))
            end

            context "and chef is running in local mode" do
              before do
                ChefConfig::Config.local_mode = true
              end

              it "config_dir is /home/charlie/.chef/" do
                expect(ChefConfig::Config.config_dir).to eq(ChefConfig::PathHelper.join(ChefConfig::PathHelper.cleanpath("/home/charlie/"), ".chef", ""))
              end
            end
          end

          if is_windows
            context "when the user's home dir is windows specific" do
              before do
                ChefConfig::Config.user_home = ChefConfig::PathHelper.cleanpath("/home/charlie/")
              end

              it "config_dir is with backslashes" do
                expect(ChefConfig::Config.config_dir).to eq(ChefConfig::PathHelper.join(ChefConfig::PathHelper.cleanpath("/home/charlie/"), ".chef", ""))
              end

              context "and chef is running in local mode" do
                before do
                  ChefConfig::Config.local_mode = true
                end

                it "config_dir is with backslashes" do
                  expect(ChefConfig::Config.config_dir).to eq(ChefConfig::PathHelper.join(ChefConfig::PathHelper.cleanpath("/home/charlie/"), ".chef", ""))
                end
              end
            end

          end

        end

        if is_windows
          describe "finding the windows embedded dir" do
            let(:default_config_location) { "c:/opscode/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.0/lib/chef/config.rb" }
            let(:alternate_install_location) { "c:/my/alternate/install/place/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.6.0/lib/chef/config.rb" }
            let(:non_omnibus_location) { "c:/my/dev/stuff/lib/ruby/gems/1.9.1/gems/chef-11.6.0/lib/chef/config.rb" }

            let(:default_ca_file) { "c:/opscode/chef/embedded/ssl/certs/cacert.pem" }

            it "finds the embedded dir in the default location" do
              allow(ChefConfig::Config).to receive(:_this_file).and_return(default_config_location)
              expect(ChefConfig::Config.embedded_dir).to eq("c:/opscode/chef/embedded")
            end

            it "finds the embedded dir in a custom install location" do
              allow(ChefConfig::Config).to receive(:_this_file).and_return(alternate_install_location)
              expect(ChefConfig::Config.embedded_dir).to eq("c:/my/alternate/install/place/chef/embedded")
            end

            it "doesn't error when not in an omnibus install" do
              allow(ChefConfig::Config).to receive(:_this_file).and_return(non_omnibus_location)
              expect(ChefConfig::Config.embedded_dir).to be_nil
            end

            it "sets the ssl_ca_cert path if the cert file is available" do
              allow(ChefConfig::Config).to receive(:_this_file).and_return(default_config_location)
              allow(File).to receive(:exist?).with(default_ca_file).and_return(true)
              expect(ChefConfig::Config.ssl_ca_file).to eq(default_ca_file)
            end
          end
        end
      end

      describe "ChefConfig::Config[:user_home]" do
        it "should set when HOME is provided" do
          expected = ChefConfig::PathHelper.cleanpath("/home/kitten")
          allow(ChefConfig::PathHelper).to receive(:home).and_return(expected)
          expect(ChefConfig::Config[:user_home]).to eq(expected)
        end

        it "falls back to the current working directory when HOME and USERPROFILE is not set" do
          allow(ChefConfig::PathHelper).to receive(:home).and_return(nil)
          expect(ChefConfig::Config[:user_home]).to eq(Dir.pwd)
        end
      end

      describe "ChefConfig::Config[:encrypted_data_bag_secret]" do
        let(:db_secret_default_path) { ChefConfig::PathHelper.cleanpath("#{ChefConfig::Config.etc_chef_dir}/encrypted_data_bag_secret") }

        before do
          allow(File).to receive(:exist?).with(db_secret_default_path).and_return(secret_exists)
        end

        context "/etc/chef/encrypted_data_bag_secret exists" do
          let(:secret_exists) { true }
          it "sets the value to /etc/chef/encrypted_data_bag_secret" do
            expect(ChefConfig::Config[:encrypted_data_bag_secret]).to eq db_secret_default_path
          end
        end

        context "/etc/chef/encrypted_data_bag_secret does not exist" do
          let(:secret_exists) { false }
          it "sets the value to nil" do
            expect(ChefConfig::Config[:encrypted_data_bag_secret]).to be_nil
          end
        end
      end

      describe "ChefConfig::Config[:event_handlers]" do
        it "sets a event_handlers to an empty array by default" do
          expect(ChefConfig::Config[:event_handlers]).to eq([])
        end
        it "should be able to add custom handlers" do
          o = Object.new
          ChefConfig::Config[:event_handlers] << o
          expect(ChefConfig::Config[:event_handlers]).to be_include(o)
        end
      end

      describe "ChefConfig::Config[:user_valid_regex]" do
        context "on a platform that is not Windows" do
          it "allows one letter usernames" do
            any_match = ChefConfig::Config[:user_valid_regex].any? { |regex| regex.match("a") }
            expect(any_match).to be_truthy
          end
        end
      end

      describe "ChefConfig::Config[:internal_locale]" do
        let(:shell_out) do
          cmd = instance_double("Mixlib::ShellOut", exitstatus: 0, stdout: locales, error!: nil)
          allow(cmd).to receive(:run_command).and_return(cmd)
          cmd
        end

        let(:locales) { locale_array.join("\n") }

        before do
          allow(Mixlib::ShellOut).to receive(:new).with("locale -a").and_return(shell_out)
        end

        shared_examples_for "a suitable locale" do
          it "returns an English UTF-8 locale" do
            expect(ChefConfig.logger).to_not receive(:warn).with(/Please install an English UTF-8 locale for Chef Infra Client to use/)
            expect(ChefConfig.logger).to_not receive(:trace).with(/Defaulting to locale en_US.UTF-8 on Windows/)
            expect(ChefConfig.logger).to_not receive(:trace).with(/No usable locale -a command found/)
            expect(ChefConfig::Config.guess_internal_locale).to eq expected_locale
          end
        end

        context "when the result includes 'C.UTF-8'" do
          include_examples "a suitable locale" do
            let(:locale_array) { [expected_locale, "en_US.UTF-8"] }
            let(:expected_locale) { "C.UTF-8" }
          end
        end

        context "when the result includes 'en_US.UTF-8'" do
          include_examples "a suitable locale" do
            let(:locale_array) { ["en_CA.UTF-8", expected_locale, "en_NZ.UTF-8"] }
            let(:expected_locale) { "en_US.UTF-8" }
          end
        end

        context "when the result includes 'en_US.utf8'" do
          include_examples "a suitable locale" do
            let(:locale_array) { ["en_CA.utf8", "en_US.utf8", "en_NZ.utf8"] }
            let(:expected_locale) { "en_US.UTF-8" }
          end
        end

        context "when the result includes 'en.UTF-8'" do
          include_examples "a suitable locale" do
            let(:locale_array) { ["en.ISO8859-1", expected_locale] }
            let(:expected_locale) { "en.UTF-8" }
          end
        end

        context "when the result includes 'en_*.UTF-8'" do
          include_examples "a suitable locale" do
            let(:locale_array) { [expected_locale, "en_CA.UTF-8", "en_GB.UTF-8"] }
            let(:expected_locale) { "en_AU.UTF-8" }
          end
        end

        context "when the result includes 'en_*.utf8'" do
          include_examples "a suitable locale" do
            let(:locale_array) { ["en_AU.utf8", "en_CA.utf8", "en_GB.utf8"] }
            let(:expected_locale) { "en_AU.UTF-8" }
          end
        end

        context "when the result does not include 'en_*.UTF-8'" do
          let(:locale_array) { ["af_ZA", "af_ZA.ISO8859-1", "af_ZA.ISO8859-15", "af_ZA.UTF-8"] }

          it "should fall back to C locale" do
            expect(ChefConfig.logger).to receive(:warn).with("Please install an English UTF-8 locale for Chef Infra Client to use, falling back to C locale and disabling UTF-8 support.")
            expect(ChefConfig::Config.guess_internal_locale).to eq "C"
          end
        end

        context "on error" do
          let(:locale_array) { [] }

          let(:shell_out_cmd) { instance_double("Mixlib::ShellOut") }

          before do
            allow(Mixlib::ShellOut).to receive(:new).and_return(shell_out_cmd)
            allow(shell_out_cmd).to receive(:run_command)
            allow(shell_out_cmd).to receive(:error!).and_raise(Mixlib::ShellOut::ShellCommandFailed, "this is an error")
          end

          it "should default to 'en_US.UTF-8'" do
            if is_windows
              expect(ChefConfig.logger).to receive(:trace).with("Defaulting to locale en_US.UTF-8 on Windows, until it matters that we do something else.")
            else
              expect(ChefConfig.logger).to receive(:trace).with("No usable locale -a command found, assuming you have en_US.UTF-8 installed.")
            end
            expect(ChefConfig::Config.guess_internal_locale).to eq "en_US.UTF-8"
          end
        end
      end
    end
  end

  describe "export_proxies" do
    before(:all) do
      @original_env = ENV.to_hash
      ENV["http_proxy"] = nil
      ENV["HTTP_PROXY"] = nil
      ENV["https_proxy"] = nil
      ENV["HTTPS_PROXY"] = nil
      ENV["ftp_proxy"] = nil
      ENV["FTP_PROXY"] = nil
      ENV["no_proxy"] = nil
      ENV["NO_PROXY"] = nil
    end

    after(:all) do
      ENV.clear
      ENV.update(@original_env)
    end

    let(:http_proxy) { "http://localhost:7979" }
    let(:https_proxy) { "https://localhost:7979" }
    let(:ftp_proxy) { "ftp://localhost:7979" }
    let(:proxy_user) { "http_user" }
    let(:proxy_pass) { "http_pass" }

    context "when http_proxy, proxy_pass and proxy_user are set" do
      before do
        ChefConfig::Config.http_proxy = http_proxy
        ChefConfig::Config.http_proxy_user = proxy_user
        ChefConfig::Config.http_proxy_pass = proxy_pass
      end
      it "exports ENV['http_proxy']" do
        expect(ENV).to receive(:[]=).with("http_proxy", "http://http_user:http_pass@localhost:7979")
        expect(ENV).to receive(:[]=).with("HTTP_PROXY", "http://http_user:http_pass@localhost:7979")
        ChefConfig::Config.export_proxies
      end
    end

    context "when https_proxy, proxy_pass and proxy_user are set" do
      before do
        ChefConfig::Config.https_proxy = https_proxy
        ChefConfig::Config.https_proxy_user = proxy_user
        ChefConfig::Config.https_proxy_pass = proxy_pass
      end
      it "exports ENV['https_proxy']" do
        expect(ENV).to receive(:[]=).with("https_proxy", "https://http_user:http_pass@localhost:7979")
        expect(ENV).to receive(:[]=).with("HTTPS_PROXY", "https://http_user:http_pass@localhost:7979")
        ChefConfig::Config.export_proxies
      end
    end

    context "when ftp_proxy, proxy_pass and proxy_user are set" do
      before do
        ChefConfig::Config.ftp_proxy = ftp_proxy
        ChefConfig::Config.ftp_proxy_user = proxy_user
        ChefConfig::Config.ftp_proxy_pass = proxy_pass
      end
      it "exports ENV['ftp_proxy']" do
        expect(ENV).to receive(:[]=).with("ftp_proxy", "ftp://http_user:http_pass@localhost:7979")
        expect(ENV).to receive(:[]=).with("FTP_PROXY", "ftp://http_user:http_pass@localhost:7979")
        ChefConfig::Config.export_proxies
      end
    end

    shared_examples "no user pass" do
      it "does not populate the user or password" do
        expect(ENV).to receive(:[]=).with("http_proxy", "http://localhost:7979")
        expect(ENV).to receive(:[]=).with("HTTP_PROXY", "http://localhost:7979")
        ChefConfig::Config.export_proxies
      end
    end

    context "when proxy_pass and proxy_user are passed as empty strings" do
      before do
        ChefConfig::Config.http_proxy = http_proxy
        ChefConfig::Config.http_proxy_user = ""
        ChefConfig::Config.http_proxy_pass = proxy_pass
      end
      include_examples "no user pass"
    end

    context "when proxy_pass and proxy_user are not provided" do
      before do
        ChefConfig::Config.http_proxy = http_proxy
      end
      include_examples "no user pass"
    end

    context "when the proxy is provided without a scheme" do
      before do
        ChefConfig::Config.http_proxy = "localhost:1111"
      end
      it "automatically adds the scheme to the proxy url" do
        expect(ENV).to receive(:[]=).with("http_proxy", "http://localhost:1111")
        expect(ENV).to receive(:[]=).with("HTTP_PROXY", "http://localhost:1111")
        ChefConfig::Config.export_proxies
      end
    end

    shared_examples "no export" do
      it "does not export any proxy settings" do
        ChefConfig::Config.export_proxies
        expect(ENV["http_proxy"]).to eq(nil)
        expect(ENV["https_proxy"]).to eq(nil)
        expect(ENV["ftp_proxy"]).to eq(nil)
        expect(ENV["no_proxy"]).to eq(nil)
      end
    end

    context "when nothing is set" do
      include_examples "no export"
    end

    context "when all the users and passwords are set but no proxies are set" do
      before do
        ChefConfig::Config.http_proxy_user = proxy_user
        ChefConfig::Config.http_proxy_pass = proxy_pass
        ChefConfig::Config.https_proxy_user = proxy_user
        ChefConfig::Config.https_proxy_pass = proxy_pass
        ChefConfig::Config.ftp_proxy_user = proxy_user
        ChefConfig::Config.ftp_proxy_pass = proxy_pass
      end
      include_examples "no export"
    end

    context "no_proxy is set" do
      before do
        ChefConfig::Config.no_proxy = "localhost"
      end
      it "exports ENV['no_proxy']" do
        expect(ENV).to receive(:[]=).with("no_proxy", "localhost")
        expect(ENV).to receive(:[]=).with("NO_PROXY", "localhost")
        ChefConfig::Config.export_proxies
      end
    end
  end

  describe "proxy_uri" do
    subject(:proxy_uri) { described_class.proxy_uri(scheme, host, port) }
    let(:env) { {} }
    let(:scheme) { "http" }
    let(:host) { "test.example.com" }
    let(:port) { 8080 }
    let(:proxy) { "#{proxy_prefix}#{proxy_host}:#{proxy_port}" }
    let(:proxy_prefix) { "http://" }
    let(:proxy_host) { "proxy.mycorp.com" }
    let(:proxy_port) { 8080 }

    before do
      stub_const("ENV", env)
    end

    shared_examples_for "a proxy uri" do
      it "contains the host" do
        expect(proxy_uri.host).to eq(proxy_host)
      end

      it "contains the port" do
        expect(proxy_uri.port).to eq(proxy_port)
      end
    end

    context "when the config setting is normalized (does not contain the scheme)" do
      include_examples "a proxy uri" do

        let(:proxy_prefix) { "" }

        let(:env) do
          {
            "#{scheme}_proxy" => proxy,
            "no_proxy" => nil,
          }
        end
      end
    end

    context "when the proxy is set by the environment" do
      include_examples "a proxy uri" do
        let(:scheme) { "https" }
        let(:env) do
          {
            "https_proxy" => "https://jane_username:opensesame@proxy.mycorp.com:8080",
          }
        end
      end
    end

    context "when an empty proxy is set by the environment" do
      let(:env) do
        {
          "https_proxy" => "",
        }
      end

      it "does not fail with URI parse exception" do
        expect { proxy_uri }.to_not raise_error
      end
    end

    context "when no_proxy is set" do
      context "when no_proxy is the exact host" do
        let(:env) do
          {
            "http_proxy" => proxy,
            "no_proxy" => host,
          }
        end

        it { is_expected.to eq nil }
      end

      context "when no_proxy includes the same domain with a wildcard" do
        let(:env) do
          {
            "http_proxy" => proxy,
            "no_proxy" => "*.example.com",
          }
        end

        it { is_expected.to eq nil }
      end

      context "when no_proxy is included on a list" do
        let(:env) do
          {
            "http_proxy" => proxy,
            "no_proxy" => "chef.io,getchef.com,opscode.com,test.example.com",
          }
        end

        it { is_expected.to eq nil }
      end

      context "when no_proxy is included on a list with wildcards" do
        let(:env) do
          {
            "http_proxy" => proxy,
            "no_proxy" => "10.*,*.example.com",
          }
        end

        it { is_expected.to eq nil }
      end

      context "when no_proxy is a domain with a dot prefix" do
        let(:env) do
          {
            "http_proxy" => proxy,
            "no_proxy" => ".example.com",
          }
        end

        it { is_expected.to eq nil }
      end

      context "when no_proxy is a domain with no wildcard" do
        let(:env) do
          {
            "http_proxy" => proxy,
            "no_proxy" => "example.com",
          }
        end

        it { is_expected.to eq nil }
      end
    end
  end

  describe "allowing chefdk configuration outside of chefdk" do

    it "allows arbitrary settings in the chefdk config context" do
      expect { ChefConfig::Config.chefdk.generator_cookbook("/path") }.to_not raise_error
    end

  end

  describe "Treating deprecation warnings as errors" do

    context "when using our default RSpec configuration" do

      it "defaults to treating deprecation warnings as errors" do
        expect(ChefConfig::Config[:treat_deprecation_warnings_as_errors]).to be(true)
      end

      it "sets CHEF_TREAT_DEPRECATION_WARNINGS_AS_ERRORS environment variable" do
        expect(ENV["CHEF_TREAT_DEPRECATION_WARNINGS_AS_ERRORS"]).to eq("1")
      end

      it "treats deprecation warnings as errors in child processes when testing" do
        # Doing a full integration test where we launch a child process is slow
        # and liable to break for weird reasons (bundler env stuff, etc.), so
        # we're just checking that the presence of the environment variable
        # causes treat_deprecation_warnings_as_errors to be set to true after a
        # config reset.
        ChefConfig::Config.reset
        expect(ChefConfig::Config[:treat_deprecation_warnings_as_errors]).to be(true)
      end

    end

    context "outside of our test environment" do

      before do
        ENV.delete("CHEF_TREAT_DEPRECATION_WARNINGS_AS_ERRORS")
        ChefConfig::Config.reset
      end

      it "defaults to NOT treating deprecation warnings as errors" do
        expect(ChefConfig::Config[:treat_deprecation_warnings_as_errors]).to be(false)
      end
    end

  end

  describe "data collector URL" do

    context "when using default settings" do

      context "for Chef Client" do

        it "configures the data collector URL as a relative path to the Chef Server URL" do
          ChefConfig::Config[:chef_server_url] = "https://chef.example/organizations/myorg"
          expect(ChefConfig::Config[:data_collector][:server_url]).to eq("https://chef.example/organizations/myorg/data-collector")
        end

      end

      context "for Chef Solo legacy mode" do

        before do
          ChefConfig::Config[:solo_legacy_mode] = true
        end

        it "sets the data collector server URL to nil" do
          ChefConfig::Config[:chef_server_url] = "https://chef.example/organizations/myorg"
          expect(ChefConfig::Config[:data_collector][:server_url]).to be_nil
        end

      end

      context "for local mode" do

        before do
          ChefConfig::Config[:local_mode] = true
        end

        it "sets the data collector server URL to nil" do
          ChefConfig::Config[:chef_server_url] = "https://chef.example/organizations/myorg"
          expect(ChefConfig::Config[:data_collector][:server_url]).to be_nil
        end

      end

    end

  end

  describe "validation_client_name" do
    context "with a normal server URL" do
      before { ChefConfig::Config[:chef_server_url] = "https://chef.example/organizations/myorg" }

      it "sets the validation client to myorg-validator" do
        expect(ChefConfig::Config[:validation_client_name]).to eq "myorg-validator"
      end
    end

    context "with an unusual server URL" do
      before { ChefConfig::Config[:chef_server_url] = "https://chef.example/myorg" }

      it "sets the validation client to chef-validator" do
        expect(ChefConfig::Config[:validation_client_name]).to eq "chef-validator"
      end
    end
  end

end
