将Factory girl与Rspec（Rails）结合使用时，不会创建测试数据库结构

Question

I am using FactoryGirl in my rails application instead of Fixtures.

When i try to use factory girl in my test and create some test data, it shows like

PG:Error relation "users" doesn't exists (i have a model named User)

But when i run rake db:test:clone , and then run the test, the test is passed. The rake db:test:clone command clones all the table structure from development db to test db, and this fixes the issue.

But is there any way for me to not to run rake db:test:clone when using FactoryGirl?

or what am i missing?

Update :

I found out one other thing, i have another application which uses Rspec and FactoryGirl. In that application below are executed when running rake spec --trace command

** Invoke spec (first_time)
** Invoke db:test:clone_structure (first_time)
** Invoke db:structure:dump (first_time)
** Invoke environment (first_time)
** Execute environment
** Invoke db:load_config (first_time)
** Execute db:load_config
** Execute db:structure:dump
** Invoke db:test:load_structure (first_time)
** Invoke db:test:purge (first_time)
** Invoke environment 
** Invoke db:load_config 
** Execute db:test:purge
** Execute db:test:load_structure
** Invoke db:structure:load (first_time)
** Invoke environment 
** Invoke db:load_config 
** Execute db:structure:load

But in any of the new application i see the below executed when running rake spec --trace

** Invoke spec (first_time)
** Invoke noop (first_time)
** Execute noop
** Execute spec

Please suggest what am i missing?

regards

Balan

Answer 1

每次您运行db:migrate ， db:test:prepare运行db:test:prepare ，因此数据库更改也将反映在您的测试数据库上。

Answer 2

我找到了解决方案，我们需要在/lib/tasks下创建一个rake任务customrake.rake并添加以下行task :spec => 'db:test:prepare' ，这将确保在执行rake db:test:prepare之前运行规格。