add lb option

test/controllers/sessions_controller_test.rb

@@ -9,11 +9,6 @@ class SessionsControllerTest < ActionDispatch::IntegrationTest
     @steve.room = @kitchen
   end
 
-  test 'can get login page.' do
-    get login_path
-    assert_response :success
-  end
-
   test 'can signin with greenlight account.' do
     post create_session_path, params: {session: {email: @steve.email, password: "steve12345"}}
     

test/models/user_test.rb

@@ -15,9 +15,9 @@ class UserTest < ActiveSupport::TestCase
     assert_not @steve.valid?
   end
 
-  test "email should be present." do
+  test "should allow nil email." do
     @steve.email = nil
-    assert_not @steve.valid?
+    assert @steve.valid?
   end
 
   test "username should be present." do