Improve registrar area sign-in/out specs

#599

spec/features/registrar/sign_in/mobile_id_spec.rb

@@ -0,0 +1,21 @@
+require 'rails_helper'
+
+RSpec.feature 'Mobile ID login', db: true do
+  given!(:api_user) { Fabricate(:api_user, identity_code: 1234) }
+
+  background do
+    Setting.registrar_ip_whitelist_enabled = false
+    digidoc_client = instance_double(Digidoc::Client, authenticate: OpenStruct.new(user_id_code: 1234), session_code: 1234)
+    allow(Digidoc::Client).to receive(:new).and_return(digidoc_client)
+  end
+
+  scenario 'login with phone number' do
+    visit registrar_login_path
+    click_on 'login-with-mobile-id-btn'
+
+    fill_in 'user[phone]', with: '1234'
+    click_button 'Login'
+
+    expect(page).to have_text('Confirmation sms was sent to your phone. Verification code is')
+  end
+end