在 Rails 3 中使用 PostgreSQL 进行测试
我正在尝试将 Rails 测试环境从 SQLite3 切换到 Postgresql。
但是，当我运行时，
rake spec:requests
会生成此错误：
omar@loco:~/apps/gctest$ rake spec:requests
rake aborted!
You have a nil object when you didn't expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.[]
Tasks: TOP => db:test:load => db:test:purge
(See full trace by running task with --trace)
我能够访问开发中的数据库（用于测试的database.yml 文件看起来与开发类似，但带有_test）。
是否存在我不知道的问题？ “任务：...”行是什么意思？
我的环境：
rspec (2.6.0)
rails (3.0.9)
ruby 1.9.2p290
pg (0.11.0)
psql (PostgreSQL) 8.4.8
I am trying to switch my Rails TEST environment from SQLite3 to Postgresql.
However, when I run
rake spec:requests
this error is generated:
omar@loco:~/apps/gctest$ rake spec:requests
rake aborted!
You have a nil object when you didn't expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.[]
Tasks: TOP => db:test:load => db:test:purge
(See full trace by running task with --trace)
I am able to access the DB in Development (my database.yml file for test looks similar to development but with _test).
Are there any gotchas that I'm unaware of?
what does the "Tasks:..." line mean?
My env:
rspec (2.6.0)
rails (3.0.9)
ruby 1.9.2p290
pg (0.11.0)
psql (PostgreSQL) 8.4.8
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我怀疑您的
database.yml文件中没有test键，并且 Rails 正在尝试使用它但没有找到它。然而，我可能是错的。不过，这看起来确实是这样的问题。该命令末尾的
--trace使它输出额外的内容是什么？也许您可以用该输出更新问题来帮助我们？I have a suspicion that you do not have the
testkey in yourdatabase.ymlfile and Rails is attempting to use that and not finding it. However, I could be wrong. That does look like that kind of issue though.What does
--traceat the end of that command make it output extra? Perhaps you could update the question with that output to help us?