工厂女孩未通过Rspec验证测试

I've been trying to get a grasp on writing tests, but having a lot of trouble as the tests never seem to validate the way I want them to. In particular, I've been trying to use Factory Girl as opposed to fixtures - as suggested by a recent Railscasts and other advice I've seen on the net - due to the benefits it professes, and that hasn't worked out.

我一直在努力掌握编写测试的方法，但由于测试似乎从未像我希望的那样验证测试，因此遇到了很多麻烦。特别是，我一直在尝试使用Factory Girl而不是固定装置 - 正如我最近在网上看到的Railscasts和其他建议所示 - 由于它所宣称的好处，而且还没有成功。

For example, here is a simple Rspec test for a user model, testing to make sure a username is present...

例如，这是一个用户模型的简单Rspec测试，测试以确保存在用户名...

describe User do
  it "should not be valid without a username" do
    user = FactoryGirl.create(:user, :username => "", :password => "secret")
    user.should_not be_valid
  end
end

And my factories.rb file, if it helps...

和我的factories.rb文件，如果它有帮助...

FactoryGirl.define do
  factory :user do
    sequence(:username) { |n| "registered-#{n}" }
    password "foobar"
  end
end

When I run 'rake spec,' it tells me...

当我运行'rake spec'时，它告诉我......

1) User should not be valid without a username
     Failure/Error: user = FactoryGirl.create(:user, :username => "", :password => "secret")
     ActiveRecord::RecordInvalid:
       Validation failed: Username can't be blank

Ummm...that's the POINT. If I specified that the user should NOT be valid, shouldn't this test actually pass?

嗯......这就是POINT。如果我指定用户不应该有效，那么这个测试真的不应该通过吗？

If I replace the Factory Girl line and set the user in the test with something like 'user = User.new(:username => "", :password => "secret")', to no surprise the test passes fine. So why is Factory Girl not working right?

如果我替换Factory Girl行并在测试中将用户设置为'user = User.new（：username =>“”，：password =>“secret”）'，那么测试通过就好了。那么为什么Factory Girl不能正常工作？

1 个解决方案

#1

You should use build like in the following:

您应该使用如下所示的构建：

user = Factory.build(:user, :username=>"foo")

Because using the method you're using will try to create a record. See docs for further information.

因为使用您正在使用的方法将尝试创建记录。有关详细信息，请参阅文档。

#1