update user creation to create\!

lib/tasks/user.rake

@@ -10,7 +10,7 @@ namespace :user do
     user_name = ui.ask("User name: ")
     password = ui.ask("Password: ")
 
-    user = User.create(:name => name, :email => email,
+    user = User.create!(:name => name, :email => email,
       :user_name => user_name, :password => password)
 
     puts "User `#{user_name}' created: ##{user.id}"

test/unit/user_test.rb

@@ -36,7 +36,7 @@ class UserTest < ActiveSupport::TestCase
 
   test "creating new user with duplicate user name should fail" do
     begin
-      subscriptions(:john).users.create(:name => "James Johnson",
+      subscriptions(:john).users.create!(:name => "James Johnson",
         :email => "[email protected]", :user_name => "jjohnson",
         :password => "ponies!")
     rescue ActiveRecord::RecordInvalid => error