Set the bot name once.

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: git://github.com/dblock/slack-ruby-bot.git
-  revision: edef7edd1c0e0f5abe70ab801593f4a2ef66766b
+  revision: 22f150f027d15c1a195692db0decf6bb4c850b7d
   specs:
     slack-ruby-bot (0.2.0)
       activesupport

spec/slack-mathbot/commands/about_spec.rb

@@ -4,9 +4,6 @@ describe SlackMathbot::Commands::Default do
   def app
     SlackMathbot::App.new
   end
-  before do
-    app.config.user = 'mathbot'
-  end
   it 'mathbot' do
     expect(message: 'mathbot').to respond_with_slack_message(SlackMathbot::ABOUT)
   end

spec/slack-mathbot/commands/calculate_spec.rb

@@ -4,9 +4,6 @@ describe SlackMathbot::Commands::Calculate, vcr: { cassette_name: 'user_info' }
   def app
     SlackMathbot::App.new
   end
-  before do
-    app.config.user = 'mathbot'
-  end
   it 'adds two numbers' do
     expect(message: 'mathbot calculate 2+2', channel: 'channel').to respond_with_slack_message('4')
   end

spec/slack-mathbot/commands/help_spec.rb

@@ -4,9 +4,6 @@ describe SlackMathbot::Commands::Help do
   def app
     SlackMathbot::App.new
   end
-  before do
-    app.config.user = 'mathbot'
-  end
   it 'help' do
     expect(message: 'mathbot help').to respond_with_slack_message('See https://github.com/dblock/slack-mathbot, please.')
   end

spec/slack-mathbot/commands/hi_spec.rb

@@ -4,9 +4,6 @@ describe SlackRubyBot::Commands::Hi do
   def app
     SlackMathbot::App.new
   end
-  before do
-    app.config.user = 'mathbot'
-  end
   it 'says hi' do
     expect(message: 'mathbot hi').to respond_with_slack_message('Hi <@user>!')
   end

spec/slack-mathbot/commands/unknown_spec.rb

@@ -4,9 +4,6 @@ describe SlackRubyBot::Commands::Unknown, vcr: { cassette_name: 'user_info' } do
   def app
     SlackMathbot::App.new
   end
-  before do
-    app.config.user = 'mathbot'
-  end
   it 'invalid command' do
     expect(message: 'mathbot foobar').to respond_with_slack_message("Sorry <@user>, I don't understand that command!")
   end

spec/spec_helper.rb

@@ -1,4 +1,9 @@
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..'))
 
 require 'slack-ruby-bot/rspec'
+
+Dir[File.join(File.dirname(__FILE__), 'support', '**/*.rb')].each do |file|
+  require file
+end
+
 require 'slack-mathbot'

spec/support/slack_mathbot.rb

@@ -0,0 +1,5 @@
+RSpec.configure do |config|
+  config.before do
+    SlackRubyBot.config.user = 'mathbot'
+  end
+end