add support for in-memory testing

config/initializers/in_memory_testing.rb

@@ -0,0 +1,14 @@
+def in_memory_database?
+  if %w{test cucumber}.member? ENV['RAILS_ENV']
+    ActiveRecord::Base.connection.class == ActiveRecord::ConnectionAdapters::SQLite3Adapter and
+    Rails::Configuration.new.database_configuration[ENV['RAILS_ENV']]['database'] == ':memory:'
+  else
+    false
+  end
+end
+
+if in_memory_database?
+  puts "creating sqlite in memory database"
+  load "#{RAILS_ROOT}/db/schema.rb" # use db agnostic schema by default
+  # ActiveRecord::Migrator.up('db/migrate') # use migrations
+end

db/schema.rb

@@ -76,8 +76,4 @@ ActiveRecord::Schema.define(:version => 20100316041234) do
     t.datetime "updated_at"
   end
 
-  add_foreign_key "projects", "users", :name => "projects_owner_id_fk", :column => "owner_id"
-
-  add_foreign_key "tasks", "users", :name => "tasks_owner_id_fk", :column => "owner_id"
-
 end