Question

我正在关注Michael Hartl撰写的Ruby on Rails教程。我被困在第6.3.2章

在测试Rails时，这是我得到的消息：

FAIL [“ test_email_addresses_should_be_unique”，＃，1.1244590690002951] test_email_addresses_should_be_unique＃UserTest（1.12s）预期true为nil或false test / models / user_test.rb：56：in'

中的块

14/14：[============================“ ：00：01，时间：00:00:01

完成于1.15905s 14个测试，30个断言，1个失败，0个错误，0个跳过

我的test / models / user_test.rb代码

user_test.rb

require 'test_helper'

class UserTest < ActiveSupport::TestCase

  def setup
    @user = User.new(name: "Example User", email: "user@example.com",
                     password: "foobar", password_confirmation: "foobar")
  end

  test "should be valid" do
    assert @user.valid?
  end

  test "name should be present" do
    @user.name = ""
    assert_not @user.valid?
  end

  test "email should be present" do
    @user.email = "     "
    assert_not @user.valid?
  end

    test "name should not be too long" do
    @user.name = "a" * 51
    assert_not @user.valid?
  end

  test "email should not be too long" do
    @user.email = "a" * 244 + "@example.com"
    assert_not @user.valid?
  end

  test "email validation should accept valid addresses" do
    valid_addresses = %w[user@example.com USER@foo.COM A_US-ER@foo.bar.org
                         first.last@foo.jp alice+bob@baz.cn]
    valid_addresses.each do |valid_address|
      @user.email = valid_address
      assert @user.valid?, "#{valid_address.inspect} should be valid"
    end
  end

  test "email validation should reject invalid addresses" do
    invalid_addresses = %w[user@example,com user_at_foo.org user.name@example.
                           foo@bar_baz.com foo@bar+baz.com]
    invalid_addresses.each do |invalid_address|
      @user.email = invalid_address
      assert_not @user.valid?, "#{invalid_address.inspect} should be invalid"
    end
  end

  test "email addresses should be unique" do
    duplicate_user = @user.dup
    duplicate_user.email = @user.email.upcase
    @user.save
    assert_not duplicate_user.valid?
  end
end

我的test / models / user_test.rb代码

ENV['RAILS_ENV'] ||= 'test'
require_relative '../config/environment'
require 'rails/test_help'
require "minitest/reporters"
Minitest::Reporters.use!

class ActiveSupport::TestCase
  # Run tests in parallel with specified workers
  parallelize(workers: :number_of_processors)

  # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
  fixtures :all

  # Add more helper methods to be used by all tests here...
end

是否可能是由于运行导致的结果？

rails console --sandbox

之前我在跑步时运行沙箱

>> duplicate_user.valid?

当我本来应该做对的时候我就做错了。任何帮助将不胜感激，在此先感谢！

在user.rb中：

class User < ApplicationRecord
  before_save { self.email = email.downcase }
  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 },
                    uniqueness: true
  has_secure_password
end

Answer 1

测试失败的原因是因为唯一性验证区分大小写，因此为了更正测试，您可以将 @ user.email.upcase 更改为 @ user.email

幸运的是，:uniqueness接受了一个选项:case_sensitive

因此将其添加到模型文件中也可以解决您的问题

 uniqueness: { case_sensitive: false }

请注意，尽管Active Record唯一性验证不能保证数据库级别的唯一性

rails测试失败：期望true为nil或false

1 个答案: