add User##verified_email? method

app/models/user.rb

@@ -1041,6 +1041,10 @@ class User < ActiveRecord::Base
     ensure_rss_token!
   end
 
+  def verified_email?(email)
+    self.email == email
+  end
+
   protected
 
   # override, from Devise::Validatable

spec/models/user_spec.rb

@@ -2102,4 +2102,18 @@ describe User do
       end
     end
   end
+
+  describe '#verified_email?' do
+    it 'returns true when the email is the primary email' do
+      user = build :user, email: 'email@example.com'
+
+      expect(user.verified_email?('email@example.com')).to be true
+    end
+
+    it 'returns false when the email is not the primary email' do
+      user = build :user, email: 'email@example.com'
+
+      expect(user.verified_email?('other_email@example.com')).to be false
+    end
+  end
 end