restrict user invites

spec/factories/accounts.rb

@@ -6,6 +6,10 @@ FactoryBot.define do
     locale { 'en-US' }
     timezone { 'UTC' }
 
+    transient do
+      teams_count { 2 }
+    end
+
     trait :with_testing_account do
       after(:create) do |account|
         testing_account = account.dup.tap { |a| a.name = "Testing - #{account.name}" }
@@ -14,5 +18,16 @@ FactoryBot.define do
         account.save!
       end
     end
+
+    trait :with_teams do
+      after(:create) do |account, evaluator|
+        Array.new(evaluator.teams_count) do |i|
+          Account.create!(
+            name: "Team #{i}",
+            linked_account_account: AccountLinkedAccount.new(account_type: :linked, account:)
+          )
+        end
+      end
+    end
   end
 end

spec/rails_helper.rb

@@ -68,6 +68,10 @@ RSpec.configure do |config|
   config.before do |example|
     Sidekiq::Testing.inline! if example.metadata[:sidekiq] == :inline
   end
+
+  config.before(multitenant: true) do
+    allow(Docuseal).to receive(:multitenant?).and_return(true)
+  end
 end
 
 ActiveSupport.run_load_hooks(:rails_specs, self)

spec/system/team_settings_spec.rb

@@ -4,6 +4,7 @@ require 'rails_helper'
 
 RSpec.describe 'Team Settings' do
   let(:account) { create(:account) }
+  let(:second_account) { create(:account) }
   let(:current_user) { create(:user, account:) }
 
   before do
@@ -56,6 +57,43 @@ RSpec.describe 'Team Settings' do
       end
     end
 
+    it "doesn't create a new user if a user already exists" do
+      click_link 'New User'
+
+      within '#modal' do
+        fill_in 'First name', with: 'Michael'
+        fill_in 'Last name', with: 'Jordan'
+        fill_in 'Email', with: users.first.email
+        fill_in 'Password', with: 'password'
+
+        expect do
+          click_button 'Submit'
+        end.not_to change(User, :count)
+      end
+
+      expect(page).to have_content('Email already exists')
+    end
+
+    it "doesn't create a new user if a user belongs to another account" do
+      user = create(:user, account: second_account)
+      visit settings_users_path
+
+      click_link 'New User'
+
+      within '#modal' do
+        fill_in 'First name', with: 'Michael'
+        fill_in 'Last name', with: 'Jordan'
+        fill_in 'Email', with: user.email
+        fill_in 'Password', with: 'password'
+
+        expect do
+          click_button 'Submit'
+        end.not_to change(User, :count)
+
+        expect(page).to have_content('Email has already been taken')
+      end
+    end
+
     it 'updates a user' do
       first(:link, 'Edit').click