[Rails] Test code using Rspec

Introduction

I'm going to introduce Rspec and write test code. The command uses the command of the docker environment.

Introducing Gem

group :development, :test do
  gem 'rspec-rails'
  gem 'factory_bot_rails'
  gem 'faker', "~> 2.8"
end

docker-compose run web bundle install docker-compose build Installation is complete.

Rspec settings

docker-compose run webrails g rspec:install When the above command is executed, the following file is generated.

create  .rspec
create  spec
create  spec/spec_helper.rb
create  spec/rails_helper.rb

.rspc
--format documentation

Code creation

spec/models/user_spec.rb

require 'rails_helper'

describe User do
  describe '#create' do

    it "username and email,password and password_Being able to register if confirmation exists" do
      user = build(:user)
      expect(user).to be_valid
    end

    it  "Cannot register without username" do 
      user = build(:user, username: nil)
      user.valid?
      expect(user.errors[:username]).to include("can't be blank")
    end

    it  "Cannot register without email" do 
      user = build(:user, email: nil)
      user.valid?
      expect(user.errors[:email]).to include("can't be blank")
    end

    it  "Cannot register without password" do 
      user = build(:user, password: nil)
      user.valid?
      expect(user.errors[:password]).to include("can't be blank")
    end

    it  "password even if password exists_Cannot register without confirmation" do 
      user = build(:user, password_confirmation: "")
      user.valid?
      expect(user.errors[:password_confirmation]).to include("doesn't match Password")
    end

    it  "Cannot register if there are duplicate emails" do
      user = create(:user)
      another_user = build(:user, email: user.email)
      another_user.valid?
      expect(another_user.errors[:email]).to include("has already been taken")
    end

    it  "If the password is 6 characters or more, you can register" do
      user = build(:user, password: "000000", password_confirmation: "000000")
      expect(user).to be_valid
    end

    it  "Cannot register if password is 5 characters or less" do
      user = build(:user, password: "00000", password_confirmation: "00000")
      user.valid?
      expect(user.errors[:password]).to include("is too short (minimum is 6 characters)")
    end:grin:

  end
end

spec/factories/users.rb

FactoryBot.define do
  factory :user do
    username                 {"aaa"}
    password                 {"000000"}
    password_confirmation    {"000000"}
    sequence(:email)     {Faker::Internet.email}
  end
end

docker-compose run web bundle exec rspec

8 examples, 0 failures

If so, the test has passed successfully.

in conclusion

This time, I entered the test using Rspec. We will also test the controller in the future. Thank you for reading to the end: grin: