Backfill some tests for app config, refactor base file name so people copy it instead of moving it

config/app_base.yml

+#   Copyright (c) 2011, Diaspora Inc.  This file is
+#   licensed under the Affero General Public License version 3 or later.  See
+#   the COPYRIGHT file.
+
+default:
+
+  # Hostname of this host, as seen from the internet.
+  pod_url: "http://localhost:3000"
+
+  # Set this to true in order to close signups.  Users will still be
+  # able to invite other people to join.
+  registrations_closed: false
+
+  # Enable extensive logging to log/{development,test,production}.log
+  debug: false
+
+  # Websocket server setup, see script/websocket_server.rb
+  # Enable extensive logging to websocket server.
+  socket_debug : false
+
+  # Websocket host, leave as 0.0.0.0 unless you know what you are doing
+  socket_host: 0.0.0.0
+
+  # File containing pid of running script/websocket_server.rb
+  socket_pidfile: "log/diaspora-wsd.pid"
+
+  # Websocket port, should normally be 8080 or 8081.
+  socket_port: 8080
+  socket_collection_name: 'websocket'
+
+  # Secure websocket confguration (wss://)
+  # requires SSL cert and key
+  socket_secure: false
+  socket_cert_chain_location: '/full/path/to/cert_chain.crt'
+  socket_private_key_location: '/full/path/to/file.key'
+
+  # Diaspora is only tested against this default pubsub server.
+  pubsub_server: 'https://pubsubhubbub.appspot.com/'
+
+  # Setting this to true enables diaspora's "send email" functionality
+  # requiring meaningful smtp_* settings. These are options for RoR's
+  # ActionMailer class.
+  mailer_on: false
+
+  # This chooses which mailer should be used. 'smtp' for a smtp
+  # connection or 'sendmail' to use the sendmail binary.
+  mailer_method: 'smtp'
+
+  # Address/port to smtp server handing outgoing mail.
+  smtp_address: 'smtp.example.com'
+  smtp_port: '587'
+
+  # Domain administered of smtp server.
+  smtp_domain: 'example.com'
+
+  # Sender address in diaspora's outgoing mail.
+  smtp_sender_address: 'no-reply@joindiaspora.com'
+
+  # Authentication required to send mail. Use one of 'one','plain',
+  # 'login' or 'cram-md5'. Use 'none' if server do not support
+  # authentication
+  smtp_authentication: 'plain'
+
+  # Credentails possibly required to log in to SMTP server if
+  # smtp_authentication != 'none'
+  smtp_username: 'smtp_username'
+  smtp_password: 'secret'
+
+  # The path to the sendmail binary.
+  sendmail_location: '/usr/sbin/sendmail'
+
+  #google analytics key, if false, it won't include the javascript
+  google_a_site: false
+
+  #piwik integration if not set, no javascript included
+  piwik_id:
+  # the site url in raw format (e.g. pikwik.examplehost.com)
+  piwik_url:
+
+
+  #cloudfiles username and api-key, used for backups
+  cloudfiles_username: 'example'
+  cloudfiles_api_key:  'abc123'
+  invites_off: false
+
+  #list of users who have admin privilages
+  admins:
+    - 'example_user1dsioaioedfhgoiesajdigtoearogjaidofgjo'
+
+  #s3 config, if set, carrierwave will store your photos on s3
+  #s3_key: 'key'
+  #s3_secret: 'secret'
+  #s3_bucket: 'my_photos'
+  s3_region: 'us-east-1'
+
+  # If you want normal Rails logs, set this to false in the appropriate environment.
+  # It is false by default in development and test.
+  enable_splunk_logging: true
+
+  # Process jobs in process?
+  single_process_mode: true
+
+# Use this sections to overide settings from default in the specific environments
+development:
+  enable_splunk_logging: false
+
+production:
+  single_process_mode: false
+
+# Do not touch unless you know what you're doing
+test:
+  pod_url: "http://example.org/"
+  socket_port: 8081
+  enable_splunk_logging: false
+
+
+# This section is special, you cannot overide settings from here in the above sections
+script_server:
+  # Port on which thin should listen
+  thin_port: 3000
+
+  # customize thins startup
+  default_thin_args: "-p $THIN_PORT -e $RAILS_ENV"
+
+  # Possibilties are development, production
+  rails_env: "development"
+

lib/app_config.rb

@@ -5,7 +5,12 @@
 class AppConfig
 
   cattr_accessor :config_vars
-
+  cattr_accessor :base_file_path
+  
+  def self.base_file_path
+    @@base_file_path || File.join(Rails.root, "config", "app_base.yml")
+  end
+  
   def self.[](key)
     config_vars[key]
   end
@@ -27,10 +32,10 @@ class AppConfig
   end
 
   def self.load_config_for_environment(env)
-    if File.exist? "#{Rails.root}/config/app.yml.example"
-      all_envs = load_config_yaml "#{Rails.root}/config/app.yml.example"
+    if File.exist?(base_file_path)
+      all_envs = load_config_yaml(base_file_path)
     else
-      $stderr.puts "ERROR: Why have you deleted config/app.yml.example?"
+      $stderr.puts "OH NO! Required file #{base_file_path} doesn't exist! Did you move it?"
       all_envs = {}
     end
     if File.exist? "#{Rails.root}/config/app.yml"

spec/lib/app_config_spec.rb

@@ -5,14 +5,40 @@
 require 'spec_helper'
 
 describe AppConfig do
-  describe ".generate_pod_uri" do
+  before do
+    @environment_vars = AppConfig.config_vars
+    AppConfig.config_vars = {}
+  end
+  after do
+    AppConfig.config_vars = @environment_vars
+  end
+  describe ".base_file_path" do
+    it "allows you to set the base file path" do
+      AppConfig.base_file_path = "foo"
+      AppConfig.base_file_path.should == "foo"
+    end
+    it "defaults to config/app_base.yml" do
+      AppConfig.base_file_path = nil
+      AppConfig.base_file_path.should == "#{Rails.root}/config/app_base.yml"
+    end
+  end
+  describe ".load_config_for_environment" do
     before do
-      @environment_vars = AppConfig.config_vars
-      AppConfig.config_vars = {}
+      @original_stderr = $stderr
+      $stderr = StringIO.new
     end
     after do
-      AppConfig.config_vars = @environment_vars
+      $stderr = @original_stderr
+    end
+    it "prints error if base file is missing" do
+      AppConfig.base_file_path = "/no/such/file"
+
+      AppConfig.load_config_for_environment(:test)
+      $stderr.rewind
+      $stderr.string.chomp.should_not be_blank
     end
+  end
+  describe ".generate_pod_uri" do
     describe "when pod_url is prefixed with protocol" do
       it "generates a URI with a host for http" do
         AppConfig[:pod_url] = "http://oscar.joindiaspora.com"