Rails code validation working but Rspec tests failing - ruby-on-rails

Question

Can anyone see what's wrong about the Rspec? All of my tests for invalid emails are failing (i.e., they are supposed to not be valid but somehow are in Rspec), but in the actual code, it works fine, no emails that are bad are allowed. The validation even works in my console....
Two notes:
I realize the formatting isn't ideal... will work on that later. This was just me writing things individually without going through and DRYing it up yet.
I also realize there exists an easier way to validate these things individually in the model, but I wanted very custom messages without any reference to the attribute, and I disliked the roundabout way that I've read that needs to be done.
Model code
validate :create_validation, on: :create
def create_validation
errors[:base] << "Please enter a valid email address to continue" if self.email.blank? || (( /\A[\w+\-.]+#[a-z\d\-]+(\.[a-z]+)*\.[a-z]+\z/i =~ self.email) == nil)
end
#The RegEx is from Michael Hartl's tutorial
Spec code
describe Signup do
before do
#signup = FactoryGirl.create(:signup)
end
subject { #signup }
describe "email tests" do
describe "invalid tests" do
# blank email
before { #signup.email = " " }
it { should_not be_valid }
# invalid format email
addresses = %w[user#foo..com, user#foo,com user_at_foo.org example.user#foo. foo#bar_baz.com foo#bar+baz.com]
addresses.each do |invalid_address|
before { #signup.email = invalid_address }
it { should_not be_valid }
end
end
end
end
Factory girl code in spec helper
FactoryGirl.define do
factory :signup do |f|
f.email { Faker::Internet.email }
#... other attributes
end
end

Answer 1

As I understood code you validate only on create! But in tests you created object in before block and it is persisted in your tests - so validation is skipped.
Try this variant
describe Signup do
before do
#signup = FactoryGirl.build(:signup)
end
subject { #signup }
describe "email tests" do
describe "invalid tests" do
# blank email
before { #signup.email = " " }
it { should_not be_valid }
# invalid format email
addresses = %w[user#foo..com, user#foo,com user_at_foo.org example.user#foo. foo#bar_baz.com foo#bar+baz.com]
addresses.each do |invalid_address|
before { #signup.email = invalid_address }
it { should_not be_valid }
end
end
end
end
I hope validation will be triggered for built but not saved record.
PS Or you can remove option on: :create