注释模型的Rspec测试（验证失败：用户必须存在）

我有一个评论和用户模型的关联（属于：user并且有很多：评论）。在注释中，它抛出了一个错误。 注释模型：

class Comment < ApplicationRecord
belongs_to :post
belongs_to :user
validates :post_id, presence: true
validates :body, presence:true, length: {minimum: 4}
end

用户工厂

require 'faker'
FactoryBot.define do
factory :user do
email {Faker::Internet.email}
password "123456"
end
end

注释模型规范

  require 'rails_helper'
  RSpec.describe Comment, type: :model do
  describe "validations" do
  describe "it is not present" do
  let(:comment) {build(:comment,body:'')}
  it 'should be invalid' do
    expect(comment.valid?).to be_falsey
  end
end

describe "it does not have minimum 3 char" do
  let(:comment) {build(:comment,body:'12')}
  it 'should be invalid' do
    expect(comment.valid?).to be_falsey
  end
end
end

 describe "It is under a post" do
 let(:comment) {build(:comment)}
 it "it belongs to a post " do
   expect(comment.post).to be_truthy
 end
end
end

当我测试上面的注释模型时，它显示错误Failure/error:post{create（：post，user:user）}

---

将您的注释工厂重新定义为

FactoryBot.define do
  factory :comment do
    body "sdfs dfjsdbf dsbfs"
    post
    user
  end
end

在您的评论中_spec.rb

user = create :user
comment = create :comment, user: user

  require 'rails_helper'
  RSpec.describe Comment, type: :model do
  describe "validations" do
  describe "it is not present" do
  let(:comment) {build(:comment,body:'')}
  it 'should be invalid' do
    expect(comment.valid?).to be_falsey
  end
end

describe "it does not have minimum 3 char" do
  let(:comment) {build(:comment,body:'12')}
  it 'should be invalid' do
    expect(comment.valid?).to be_falsey
  end
end
end

 describe "It is under a post" do
 let(:comment) {build(:comment)}
 it "it belongs to a post " do
   expect(comment.post).to be_truthy
 end
end
end

 ActiveRecord::RecordInvalid:
   Validation failed: User must exist

FactoryBot.define do
  factory :comment do
    body "sdfs dfjsdbf dsbfs"
    post
    user
  end
end

user = create :user
comment = create :comment, user: user