ruby-on-rails - false 在 rspec 中被认为是 nil 吗？

Question

客户表中有事件的字段名称。它在 customer.rb 中验证如下:

validates :active, :presence => true

这是测试短名称字段的 rspec 代码:

it "should be OK with duplicate short_name in different active status" do
  customer = Factory(:customer, :active => false, :short_name => "test user")
  customer1 = Factory.build(:customer, :active => true, :short_name => "Test user")
  customer1.should be_valid           
end

short_name 的验证是:

  validates :short_name, :presence => true, :uniqueness => { :scope => :active }

以上代码导致的错误:

  1) Customer data integrity should be OK with duplicate short_name in different active status
     Failure/Error: customer = Factory(:customer, :active => false, :short_name => "test user")
     ActiveRecord::RecordInvalid:
       Validation failed: Active can't be blank
     # ./spec/models/customer_spec.rb:62:in `block (3 levels) in <top (required)>'

似乎分配给事件字段的错误值被 rspec 认为是空白或 nil，并且未通过数据验证检查。试图将 0 用作 false，但它会导致相同的错误。如果移除字段 active 的验证，则 rspec 案例通过。

Answer 1

这不是 rspec 问题，它与 Rails 的验证有关。我想您的 active 字段是一个 bool 值，引用 validates_presence_of 文档:

If you want to validate the presence of a boolean field (where the real values are true and false), you will want to use validates_inclusion_of :field_name, :in => [true, false] This is due to the way Object#blank? handles boolean values. false.blank? # => true

所以只需将您的验证器更改为类似以下内容(假设您想要“性感”语法)，它应该可以工作:

validates :active, :inclusion => [true, false]