RSpec 失败：迁移后找不到表...？
我有一个带有一个模型的裸 Rails 3 应用程序，使用 rails g model User 生成。
我添加了一个工厂（使用 factory_girl_rails）：
Factory.define :user do |f|
f.email "[email protected]"
f.password "blah"
f.password_confirmation "blah"
f.display_name "neezer"
end
然后我添加了一个测试：
require 'spec_helper'
describe User do
subject { Factory :user }
it "can be created from a factory" do
subject.should_not be_nil
subject.should be_kind_of User
end
end
然后我使用 rake db:migrate迁移我的数据库 。
然后我使用 rspec spec 运行测试，测试失败并显示以下内容：
Failures:
1) User can be created from a factory
Failure/Error: subject { Factory :user }
ActiveRecord::StatementInvalid:
Could not find table 'users'
# ./spec/models/user_spec.rb:5:in `block (2 levels) in <top (required)>'
# ./spec/models/user_spec.rb:8:in `block (2 levels) in <top (required)>'
我很困惑，因为我刚刚迁移了数据库和我的 schema.db 文件反映存在一个 users 表，那么给出了什么？
我知道这是一个初学者的问题，但是把我的头撞在墙上是行不通的......
factory_girl (1.3.3)
factory_girl_rails (1.0.1)
rails (3.0.5)
rspec-rails (2.5.0)
sqlite3 (1.3.3)
I have a naked rails 3 app with one model, generated using rails g model User.
I've added a factory (using factory_girl_rails):
Factory.define :user do |f|
f.email "[email protected]"
f.password "blah"
f.password_confirmation "blah"
f.display_name "neezer"
end
Then I've added one test:
require 'spec_helper'
describe User do
subject { Factory :user }
it "can be created from a factory" do
subject.should_not be_nil
subject.should be_kind_of User
end
end
Then I migrate my database using rake db:migrate.
Then I run the test using rspec spec, and the test fails with the following:
Failures:
1) User can be created from a factory
Failure/Error: subject { Factory :user }
ActiveRecord::StatementInvalid:
Could not find table 'users'
# ./spec/models/user_spec.rb:5:in `block (2 levels) in <top (required)>'
# ./spec/models/user_spec.rb:8:in `block (2 levels) in <top (required)>'
I'm confused, because I did just migrate my database, and my schema.db file reflects that there is a users table present, so what gives?
I know this is a beginner question, but banging my head against a wall isn't working...
factory_girl (1.3.3)
factory_girl_rails (1.0.1)
rails (3.0.5)
rspec-rails (2.5.0)
sqlite3 (1.3.3)
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评论（3）
尝试执行
这应该可以修复您的测试数据库。
Try to execute
This should fix your tests db.
这里的要点是 rspec 命令不会在测试数据库上执行迁移。并且
rake db:migrate仅在您当前的环境（可能是开发）中运行迁移。其他环境（例如生产和测试）在没有这些更改的情况下结束。您可以运行
这将准备您的测试数据库（使用
schema.rb删除和创建）并运行所有测试。正如另一个答案所建议的，这：
还将设置您的测试数据库，但之后您必须运行 rspec 命令，所以，我个人更喜欢第一个选择。
The point here is that
rspeccommand doesn't execute migrations on your test database. andrake db:migrateonly runs migrations in your current environment, probablydevelopment. Others environment likeproductionandtestends without having those changes.You can run
That will prepare your testing db (drop and create using
schema.rb) and run all tests.As the other answer suggested, this:
Will also setup your testing db, but you have to run the rspec command after that, so, personally I prefer the first option.
试试这个：
尝试使用
try this out:
try using