我正在尝试为插件“foobar”开发测试,修改一些标准的Rails助手.在vendor / plugins / foobar / test / foobar_test.rb中,我有以下内容：
# create the test model
class Thing < ActiveRecord::Base
end
# create the test controller,which renders the included index template
class ThingsController < ActionController::Base
def index
@things = Thing.all
format.html { render(:file => 'index') }
end
def destroy
@thing = Thing.find(params[:id])
@thing.destroy
format.html { render(:file => 'index') }
end
end
# confirm that the test environment is working correctly
class ThingsTest < ActiveSupport::TestCase
test "model is loaded correctly" do
assert_kind_of Thing,Thing.new
end
end
# confirm that the controller and routes are working correctly
class ThingsControllerTest < ActionController::TestCase
test "should load index" do
with_routing do |set|
set.draw do
resources :things,:only => [:index,:destroy]
end
get :index
assert_response :success
end
end
end
当我运行rake时,我得到以下输出：
test_should_load_index(ThingsControllerTest): NameError: undefined local variable or method `_routes' for ThingsController:Class
知道我做错了什么阻止我访问路线？我已经在这里待了好几天并且搜索了很多文档,但都无济于事.谢谢您的帮助！
解决方法
我使用Ruby 1.9.2在Rails 3.1.0.rc1上工作,遵循
“The Basics of Creating Rails Plugins” Rails指南并在因不兼容而爆炸时更正代码.
我开始跑步：
Code$rails new tester Code$cd tester tester$rails generate plugin foobar --with-generator
# vendor/plugins/foobar/init.rb require 'foobar'
# vendor/plugins/foobar/lib/foobar.rb
%w{ models controllers helpers }.each do |dir|
path = File.join(File.dirname(__FILE__),'app',dir)
$LOAD_PATH << path
ActiveSupport::Dependencies.autoload_paths << path
ActiveSupport::Dependencies.autoload_once_paths.delete(path)
end
# I'm not entirely sure this is the best way to add our plugin's views
# to the view search path,but it works
ActionController::Base.view_paths =
ActionController::Base.view_paths +
[ File.join(File.dirname(__FILE__),'views') ]
<!-- vendor/plugins/foobar/lib/app/views/things/index.html.erb -->
<h1>Listing things</h1>
<table>
<tr>
<th>Name</th>
<th></th>
</tr>
<% @things.each do |thing| %>
<tr>
<td><%= thing.name %></td>
<td><%= link_to 'Destroy',thing,confirm: 'Are you sure?',method: :delete %></td>
</tr>
<% end %>
</table>
# vendor/plugins/foobar/test/database.yml sqlite: :adapter: sqlite :dbfile: vendor/plugins/foobar/test/foobar_plugin.sqlite.db sqlite3: :adapter: sqlite3 :database: vendor/plugins/foobar/test/foobar_plugin.sqlite3.db postgresql: :adapter: postgresql :username: postgres :password: postgres :database: foobar_plugin_test :min_messages: ERROR MysqL: :adapter: MysqL :host: localhost :username: root :password: password :database: foobar_plugin_test
# vendor/plugins/foobar/test/schema.rb
ActiveRecord::Schema.define(:version => 0) do
create_table :things,:force => true do |t|
t.string :name
t.datetime :created_at
t.datetime :updated_at
end
end
# vendor/plugins/foobar/test/test_helper.rb
ENV['RAILS_ENV'] = 'test'
ENV['RAILS_ROOT'] ||= File.dirname(__FILE__) + '/../../../..'
require 'test/unit'
require File.expand_path(File.join(ENV['RAILS_ROOT'],'config/environment.rb'))
def load_schema
config = YAML::load(IO.read(File.dirname(__FILE__) + '/database.yml'))
ActiveRecord::Base.logger = Logger.new(File.dirname(__FILE__) + "/debug.log")
db_adapter = ENV['DB']
# no db passed,try one of these fine config-free DBs before bombing.
db_adapter ||=
begin
require 'rubygems'
require 'sqlite'
'sqlite'
rescue MissingSourceFile
begin
require 'sqlite3'
'sqlite3'
rescue MissingSourceFile
end
end
if db_adapter.nil?
raise "No DB Adapter selected. Pass the DB= option to pick one,or install sqlite or sqlite3."
end
ActiveRecord::Base.establish_connection(config[db_adapter])
load(File.dirname(__FILE__) + "/schema.rb")
require File.dirname(__FILE__) + '/../init'
end
load_schema
# vendor/plugins/foobar/test/foobar_test.rb
require File.dirname(__FILE__) + '/test_helper'
# create the test model
class Thing < ActiveRecord::Base
end
# create the test controller,which renders the included index template
class ThingsController < ActionController::Base
def index
@things = Thing.all
respond_to do |format|
format.html # index.html.erb
end
end
def destroy
@thing = Thing.find(params[:id])
@thing.destroy
respond_to do |format|
format.html { redirect_to things_url }
end
end
end
# confirm that the test environment is working correctly
class ThingsTest < ActiveSupport::TestCase
test "schema has loaded correctly" do
assert_equal [],Thing.all
end
test "model is loaded correctly" do
assert_kind_of Thing,:destroy]
end
get :index
assert_response :success
end
end
end
最后,我们的测试通过：
tester$cd vendor/plugins/foobar/
foobar$rake
-- create_table(:things,{:force=>true})
-> 0.0059s
-- initialize_schema_migrations_table()
-> 0.0002s
-- assume_migrated_upto_version(0,["db/migrate"])
-> 0.0003s
Loaded suite /Users/nick/.rvm/gems/ruby-1.9.2-p0/gems/rake-0.9.2/lib/rake/rake_test_loader
Started
...
Finished in 0.091642 seconds.
3 tests,3 assertions,0 failures,0 errors,0 skips