在Ruby on Rails的6.2.5中Ruby代码RSpec失败tutorial2nd_edition

Question

我的ruby RSpec代码出现故障。 我希望你能帮助我。 当我添加电子邮件重复验证时，失败即将到来。

这是我的user_spec代码

require 'spec_helper' 

describe User do 

    before do 
    @user = User.new(name: "Example User", email: "user@example.com") 
    end 

    subject { @user } 

    it { should respond_to(:name) } 
    it { should respond_to(:email) } 

    it { should be_valid } 

    describe "when name is not present" do 
    before { @user.name = " " } 
    it { should_not be_valid } 
    end 

    describe "when email is not present" do 
    before { @user.email = " " } 
    it { should_not be_valid } 
    end 

    describe "when name is too long" do 
    before { @user.name = "a" * 51 } 
    it { should_not be_valid } 
    end 

    describe "when email format is invalid" do 
    it "should be invalid" do 
     addresses = %w[user@foo,com user_at_foo.org example.user@foo.foo@bar_baz.com foo@bar+baz.com] 
     addresses.each do |invalid_address| 
      @user.email = invalid_address 
      @user.should_not be_valid 
     end 
    end 
    end 

    describe "when email format is valid" do 
    it "should be valid" do 
     addresses = %w[user@foo.COM A_US-ER@f.b.org frst.lst@foo.jp a+b@baz.cn] 
     addresses.each do |valid_address| 
      @user.email = valid_address 
      @user.should be_valid 
     end 
    end 
    end 
    describe "when email address is already taken" do 
     before do 
      user_with_same_email = @user.dup 
      user_with_same_email.email = @user.email.upcase 
      user_with_same_email.save 
     end 
     it { should_not be_valid } 
    end 
end 

这里是user.rb代码，这是模型

class User < ActiveRecord::Base 
    validates :name, presence: true, length: { maximum: 50 } 
    VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i 
    validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false } 
end 

当我测试它，我得到这个故障。我不知道什么是错的，我也没有在网上找到解决方案。

$ bundle exec rspec spec/models/user_spec.rb 
Your Gemfile lists the gem rspec-rails (>= 0) more than once. 
You should probably keep only one of them. 
While it's not a problem now, it could cause errors if you change the version of just one of them later. 
..[deprecated] I18n.enforce_available_locales will default to true in the future. If you really want to skip validation of your locale you can set I18n.enforce_available_locales = false to avoid this message. 
F...... 

Failures: 

    1) User 
    Failure/Error: it { should be_valid } 
     expected valid? to return true, got false 
    # ./spec/models/user_spec.rb:14:in `block (2 levels) in <top (required)>' 

Finished in 0.26438 seconds 
9 examples, 1 failure 

Failed examples: 

rspec ./spec/models/user_spec.rb:14 # User 

Answer 1

这是通过进一步的故障排除建议，而不是实际的答案。

接下来要查找的关键信息是验证失败。在IRB控制台会话中，尝试运行

user = User.new(name: "Example User", email: "user@example.com") 
user.valid? # we're expecting this to return false 
user.errors.messages # returns the message for the validation that's failing. 

如果您知道哪些验证失败，缩小问题的范围会更容易。

Answer 2

我试过你的代码，它都变成了绿色。

我的猜测是你在之前的rspec运行中有一些异常，因此你的测试数据库中有一些数据从未被成功删除过。

尝试

rake db:test:prepare 

，看看您是否仍然有问题。