【Rspec】メール認証を使ったユーザー登録のテストについてアドバイスをお願いいたします

Failures:

  1) Users User CRUD creating a new user creates a new user
     Failure/Error: visit edit_user_account_activation_path(@user.activation_token, email: @user.email)

     ActionController::UrlGenerationError:
       No route matches {:action=>"edit", :controller=>"user_account_activations", :email=>"test@example.com", :id=>nil}, possible unmatched constraints: [:id]
       Did you mean?  edit_user_account_activation_url

require 'rails_helper'

RSpec.describe 'Users', js: true, type: :system do
  describe 'User CRUD' do
    let(:user) { FactoryBot.build(:user) }
    let(:user_not_activated) { FactoryBot.build(:user, activated: false) }
    let(:another_user) { FactoryBot.create(:user, email: 'another@example.com') }
    before do
      @number_of_users = User.count
      ActionMailer::Base.deliveries.clear
    end

    context 'creating a new user' do
      it 'creates a new user' do
        visit signup_path
        fill_in '名前', with: user_not_activated.name
        fill_in 'メールアドレス', with: user_not_activated.email
        fill_in 'パスワード', with: user_not_activated.password
        fill_in 'パスワード（確認）', with: user_not_activated.password_confirmation
        click_button 'ユーザー登録'

        expect(ActionMailer::Base.deliveries.size).to eq 1

        @user = User.find_by(email: user_not_activated.email)
        expect(@user).to_not be_activated

        visit edit_user_account_activation_path(@user.activation_token, email: @user.email)
        @user.reload
        expect(@user).to be_activated
        expect(get_me_the_cookie('remember_token')).to_not eq nil
        expect(page).to have_current_path edit_user_url(@user)
        expect(page).to have_content 'ようこそ！'

        expect(User.count).to eq @number_of_users + 1
      end

#以下略

class User < ApplicationRecord
  attr_accessor :remember_token, :activation_token

  before_save   :downcase_email
  before_create :create_activation_digest
  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

  VALID_PASSWORD_REGEX = /\A(?=.*?[a-z])(?=.*?[A-Z])(?=.*?\d)\w{8,12}\z/
  has_secure_password
  validates :password, presence: true,
                       format: { with: VALID_PASSWORD_REGEX, message: 'は半角8~12文字で英大文字・小文字・数字それぞれ１文字以上含む必要があります' },
                       allow_nil: true

  # 渡された文字列のハッシュ値を返す
  def self.digest(string)
    cost = if ActiveModel::SecurePassword.min_cost
             BCrypt::Engine::MIN_COST
           else
             BCrypt::Engine.cost
           end
    BCrypt::Password.create(string, cost: cost)
  end

  # ランダムなトークンを返す
  def self.new_token
    SecureRandom.urlsafe_base64
  end

  # 永続セッションのためにユーザーをデータベースに記憶する
  def remember
    self.remember_token = User.new_token
    update_attribute(:remember_digest, User.digest(remember_token))
  end

  # 渡されたトークンがダイジェストと一致したらtrueを返す
  def authenticated?(attribute, token)
    digest = send("#{attribute}_digest")
    return false if digest.nil?

    BCrypt::Password.new(digest).is_password?(token)
  end

  def forget
    update_attribute(:remember_digest, nil)
  end

  private

  def downcase_email
    email.downcase!
  end

  def create_activation_digest
    self.activation_token  = User.new_token
    self.activation_digest = User.digest(activation_token)
  end
end

class UsersController < ApplicationController
  before_action :logged_in_user, only: %i[show edit update destroy]
  before_action :correct_user, only: %i[edit update destroy]
  def new
    @user = User.new
    return unless logged_in?

    redirect_to root_url
  end

  def create
    @user = User.new(user_params)
    if @user.save
      UserMailer.account_activation(@user).deliver_now
      flash[:info] = 'アカウント認証メールを確認して登録を完了してください'
      redirect_to root_url
    else
      render 'new'
    end
  end

#以下略

class UserAccountActivationsController < ApplicationController
  def edit
    user = User.find_by(email: params[:email])
    if user && !user.activated? && user.authenticated?(:activation, params[:id])
      user.update_attribute(:activated, true)
      user.update_attribute(:activated_at, Time.zone.now)
      log_in user
      flash[:success] = 'ようこそ！'
      redirect_to edit_user_url user
    else
      flash[:danger] = 'このURLは無効です'
      redirect_to root_url
    end
  end
end

#これより前省略
  context 'creating a new user' do
      it 'creates a new user' do
        visit signup_path
        fill_in '名前', with: user_not_activated.name
        fill_in 'メールアドレス', with: user_not_activated.email
        fill_in 'パスワード', with: user_not_activated.password
        fill_in 'パスワード（確認）', with: user_not_activated.password_confirmation
        click_button 'ユーザー登録'

        @user = User.find_by(email: user_not_activated.email)
        expect(ActionMailer::Base.deliveries.size).to eq 1
        expect(@user).to_not be_activated

        p @user.activation_token # <---- デバッグ用に追記
        p @user # <---- デバッグ用に追記
        visit edit_user_account_activation_path(@user.activation_token, email: @user.email)
#これより後省略