#### modify spec/spec_helper.rb

~~~ruby
  config.expect_with :rspec do |c|
    c.syntax = :expect
  end
~~~

#### modify spec/models/restaurant_spec.rb

~~~ ruby
  require 'spec_helper'

  describe Restaurant do
    subject(:restaurant) { FactoryGirl.build(:restaurant, name: nil)}
    it {expect(restaurant.valid?).to be_false}
  end
~~~

~~~ ruby

  #some code

~~~

{% highlight ruby %}

{% endhighlight %}