如何使用ruby-debug gem来调试插件或gem，其中我想调试的部分是从测试脚本开始的？ [英] How to debug a plugin or gem using ruby-debug gem, where the part I wanted to debug started from test scripts?

问题描述

例如，我有一个名为Authlogic-openid的gem，该插件已过时，不再支持，并且被破坏（如果您知道其他方法，请告诉我）。

我想通过在vendor / gems / authlogic-oid-1.0.4 / test / acts_as_authentic_test.rb上键入ctrl + R来确保测试运行。

[请不要试图在下面尝试我的步骤，宝石本身已经分裂，所以我不得不早些修理一些路径和所需的库...只要想象它们在你的头上]

起初它返回

  LoadError：没有这样的文件加载 -  ruby​​-debug 
 
 code> 

所以我评论了test_helper.rb中的第3行，其中一行写着：



  requireruby-debug
  

然后我通过安装ruby-debug gem


  gem install ruby​​-debug 
  

然后我将它添加到environment.rb中
$ b

  config.gem'红宝石- debug'
  

问题1：我的上述步骤是否正确启动我的Gem调试任务？



好的，现在我想调试的行在vendor / gems / authlogic-oid-1.0.4 / lib / authlogic_openid / acts_as_authentic.rb第157行（或其周围）的内容如下：

  session_class.controller.params [：open_id_complete]&& session_class.controller.params [：for_model] 
  

所以我在其上键入调试器现在显示为：



 调试器
 session_class.controller.params [：open_id_complete]&& session_class.controller.params [：for_model] 
  

然后当我再次按下ctrl + R on vendor / gems /authlogic-oid-1.0.4/test/acts_as_authentic_test.rb，我得到了这个输出：



  DEPRECATION警告：请更新配置/database.yml使用'数据库'而不是'dbfile'。 （在/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/sqlite_adapter.rb:35从parse_sqlite_config！调用）
加载套件/Volumes/Data/work/ror/user_manager/vendor/gems/authlogic-oid-1.0.4/test/acts_as_authentic_test 
已启动
 E 
已完成0.009325秒。 
 $ b $ 1）错误：
 test_password_not_required_on_create（ActsAsAuthenticTest）：
 
 
 NoMethodError：未定义方法`logger'为true：TrueClass 
方法调试器在第6行的debugger.rb中
方法openid_complete？位于第157行的acts_as_authentic.rb中
方法中83行中的acts_as_authentic.rb中的authenticate_with_openid 
行中acts_as_authentic.rb中的方法save 
方法test_password_not_required_on_create中第16行的acts_as_authentic_test.rb 
方法__send__在第62行的setup_and_teardown.rb中
方法在第62行的setup_and_teardown.rb中运行
 
 1个测试，0个断言，0个失败，1个错误
  

问题2：我的步骤是否正确地调试代码？为什么我得到错误的未定义方法'记录器'？

红利问题：为什么我会得到弃用警告？如何解决它？

我的database.yml文件如下：

 ＃MySQL。推荐版本4.1和5.0。 
＃
＃安装MySQL驱动程序：
＃gem install mysql 
＃在Mac OS X上：
＃sudo gem install mysql  -  --with-mysql- dir = / usr / local / mysql 
＃在Mac OS X Leopard上：
＃sudo env ARCHFLAGS = -  arch i386gem install mysql  -  --with-mysql-config = / usr / local / mysql / bin / mysql_config 
＃这将ARCHFLAGS环境变量设置为本地架构
＃在Windows上：
＃gem install mysql 
＃选择win32版本。 
＃安装MySQL并将其/ bin目录放在您的路径中。 
＃
＃并确保使用新式密码哈希：
＃http://dev.mysql.com/doc/refman/5.0/en/old-client.html 
开发：
适配器：mysql 
编码：utf8 
 reconnect：false 
数据库：user_manager_development 
池：5 
用户名：root 
密码：oisadj 
 socket：/tmp/mysql.sock 
 
＃警告：定义为test的数据库将被删除，
＃从开发数据库中重新生成当你运行耙。 
＃不要将此db设置为与开发或生产相同。 
 test：
适配器：mysql 
编码：utf8 
 reconnect：false 
数据库：user_manager_test 
池：5 
用户名：root 
密码：oisadj 
套接字：/tmp/mysql.sock 
 
制作：
适配器：mysql 
编码：utf8 
重新连接：false 
 database：user_manager_production 
 pool：5 
 username：root 
 password：
 socket：/tmp/mysql.sock 
  

谢谢！ 解决方案

尝试运行测试服务器使用 - 调试器标志。

从Rails的README文件：

使用--debugger启动Mongrel或
Webrick服务器时，可通过调试器命令获得调试器支持。这意味着您可以在代码中的任意位置
跳出执行，调查并更改模型，然后继续执行！
您需要安装 ruby​​-debug 才能运行服务器处于调试模式。使用gem，使用'gem install ruby​​-debug'。

---

关于弃用警告。

DEPRECATION警告：请更新config / database.yml以使用'database'而不是'dbfile'。

看来你使用SQLite。您只需将 config / database.yml 中的 dbfile 行替换为数据库并且警告应该消失。

For example I have this gem called Authlogic-openid, that plugin is outdated, no longer supported, and broken (let me know if you know any alternative by the way).

I wanted to make sure the test runs by keying ctrl+R on vendor/gems/authlogic-oid-1.0.4/test/acts_as_authentic_test.rb

[Please do not attempt to try my steps below, the gem itself was already broken apart so I had to earlier fix up some paths and required libraries... just imagine them in your head]

At first it returned

LoadError: no such file to load — ruby-debug

So I commented the line #3 in test_helper.rb, one that reads:

require "ruby-debug"

then I installed ruby-debug gem by

gem install ruby-debug

Then I added this into environment.rb

  config.gem 'ruby-debug'

Question #1: Are my steps above correct to start my Gem debugging quest?

Alright, so now the line I wanted to debug is in vendor/gems/authlogic-oid-1.0.4/lib/authlogic_openid/acts_as_authentic.rb line #157 (or around it) which reads:

  session_class.controller.params[:open_id_complete] && session_class.controller.params[:for_model]

So I typed "debugger" on top of it, it now reads:

debugger
session_class.controller.params[:open_id_complete] && session_class.controller.params[:for_model]

Then when I pressed ctrl + R again on vendor/gems/authlogic-oid-1.0.4/test/acts_as_authentic_test.rb, I got this output:

DEPRECATION WARNING: Please update config/database.yml to use 'database' instead of 'dbfile'. (called from parse_sqlite_config! at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/sqlite_adapter.rb:35)
Loaded suite /Volumes/Data/work/ror/user_manager/vendor/gems/authlogic-oid-1.0.4/test/acts_as_authentic_test
Started
E 
Finished in 0.009325 seconds.

  1) Error:
test_password_not_required_on_create(ActsAsAuthenticTest):


NoMethodError: undefined method `logger' for true:TrueClass
method debugger in debugger.rb at line 6
method openid_complete? in acts_as_authentic.rb at line 157
method authenticate_with_openid in acts_as_authentic.rb at line 83
method save in acts_as_authentic.rb at line 73
method test_password_not_required_on_create in acts_as_authentic_test.rb at line 16
method __send__ in setup_and_teardown.rb at line 62
method run in setup_and_teardown.rb at line 62

1 tests, 0 assertions, 0 failures, 1 errors

Question #2: Are my steps correct to debug the code? Why did I get the error undefined method 'logger'?

Bonus Question: Why do I get that deprecation warning? How to fix it?

my database.yml file as follows:

# MySQL.  Versions 4.1 and 5.0 are recommended.
#
# Install the MySQL driver:
#   gem install mysql
# On Mac OS X:
#   sudo gem install mysql -- --with-mysql-dir=/usr/local/mysql
# On Mac OS X Leopard:
#   sudo env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
#       This sets the ARCHFLAGS environment variable to your native architecture
# On Windows:
#   gem install mysql
#       Choose the win32 build.
#       Install MySQL and put its /bin directory on your path.
#
# And be sure to use new-style password hashing:
#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
  adapter: mysql
  encoding: utf8
  reconnect: false
  database: user_manager_development
  pool: 5
  username: root
  password: oisadj
  socket: /tmp/mysql.sock

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: mysql
  encoding: utf8
  reconnect: false
  database: user_manager_test
  pool: 5
  username: root
  password: oisadj
  socket: /tmp/mysql.sock

production:
  adapter: mysql
  encoding: utf8
  reconnect: false
  database: user_manager_production
  pool: 5
  username: root
  password: 
  socket: /tmp/mysql.sock

Thank you!

解决方案

Try to run your testing server with the --debugger flag.

From the Rails README file:

Debugger support is available through the debugger command when you start your Mongrel or Webrick server with --debugger. This means that you can break out of execution at any point in the code, investigate and change the model, AND then resume execution! You need to install ruby-debug to run the server in debugging mode. With gems, use 'gem install ruby-debug'.

---

Regarding the deprecation warning.

DEPRECATION WARNING: Please update config/database.yml to use 'database' instead of 'dbfile'.

It seems you use SQLite. You just need to replace the dbfile line in your config/database.yml with the database and the warning should gone.

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