Ruby on Rails - 正则表达式电子邮件验证不起作用

Question

我想在第6章Michael Hartl的rails教程中做正则表达式电子邮件验证示例，但由于某些原因测试“电子邮件验证应接受有效地址”失败有效的电子邮件地址。按照建议，我尝试使用Rubular的正则表达式，并通过那里。如果有人知道它为什么在我的rails代码中失败了，我会很感激帮助解决它。谢谢。

测试失败

test "email validation should accept valid addresses" do 
    valid_addresses = %w[user@example.com USER@foo.COM first.last@foo.jp] 
    valid_addresses.each do |valid_address| 
     @user.email = valid_addresses 
     assert @user.valid?, "#{valid_address.inspect} should be valid" 
    end 
end 

用户类正则表达式和验证定义

class User < ActiveRecord::Base 

    has_many :posts, dependent: :destroy 
    has_many :text_posts, dependent: :destroy 
    has_many :image_posts, dependent: :destroy 

    validates :name, presence: true, length: {maximum: 50} 

    VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i 

    validates :email, presence: true, length: {maximum: 255}, format: {with: VALID_EMAIL_REGEX} 

end 

Answer 1

目前，你设置的用户通过电子邮件发送给所有有效电子邮件的阵列，而不仅仅是当前的电子邮件：

@user.email = valid_addresses 

应该

@user.email = valid_address