Generalise email address

test/integration/recoverable_test.rb

@@ -34,14 +34,14 @@ class PasswordTest < Devise::IntegrationTest
   end
 
   test 'reset password should send to user record email and avoid case mapping collisions' do
-    create_user(email: 'luke@github.com')
+    create_user(email: 'user@github.com')
 
     request_forgot_password do
-      fill_in 'email', with: 'luke@gıthub.com'
+      fill_in 'email', with: 'user@gıthub.com'
     end
 
     mail = ActionMailer::Base.deliveries.last
-    assert_equal ['luke@github.com'], mail.to
+    assert_equal ['user@github.com'], mail.to
   end
 
   test 'reset password with email of different case should succeed when email is in the list of case insensitive keys' do