diff --git a/lib/devise/models/confirmable.rb b/lib/devise/models/confirmable.rb
index 51ca45d4..ba7d71f8 100644
--- a/lib/devise/models/confirmable.rb
+++ b/lib/devise/models/confirmable.rb
@@ -39,6 +39,13 @@ module Devise
         after_update  :send_confirmation_instructions, :if => :reconfirmation_required?
       end
 
+      def initialize(*args, &block)
+        @bypass_postpone = false
+        @reconfirmation_required = false
+        @skip_confirmation_notification = false
+        super
+      end
+
       def self.required_fields(klass)
         required_methods = [:confirmation_token, :confirmed_at, :confirmation_sent_at]
         required_methods << :unconfirmed_email if klass.reconfirmable
diff --git a/test/failure_app_test.rb b/test/failure_app_test.rb
index 39b0e871..f543dfb1 100644
--- a/test/failure_app_test.rb
+++ b/test/failure_app_test.rb
@@ -80,9 +80,9 @@ class FailureTest < ActiveSupport::TestCase
 
     test 'setup a default message' do
       call_failure
-      assert_match /You are being/, @response.last.body
-      assert_match /redirected/, @response.last.body
-      assert_match /users\/sign_in/, @response.last.body
+      assert_match(/You are being/, @response.last.body)
+      assert_match(/redirected/, @response.last.body)
+      assert_match(/users\/sign_in/, @response.last.body)
     end
 
     test 'works for any navigational format' do
diff --git a/test/integration/confirmable_test.rb b/test/integration/confirmable_test.rb
index 1e20ec0d..627dbd74 100644
--- a/test/integration/confirmable_test.rb
+++ b/test/integration/confirmable_test.rb
@@ -275,7 +275,7 @@ class ConfirmationOnChangeTest < ActionDispatch::IntegrationTest
 
     visit_admin_confirmation_with_token(confirmation_token)
     assert_have_selector '#error_explanation'
-    assert_contain /Confirmation token(.*)invalid/
+    assert_contain(/Confirmation token(.*)invalid/)
 
     visit_admin_confirmation_with_token(admin.confirmation_token)
     assert_contain 'Your account was successfully confirmed.'
@@ -293,7 +293,7 @@ class ConfirmationOnChangeTest < ActionDispatch::IntegrationTest
 
     visit_admin_confirmation_with_token(admin.confirmation_token)
     assert_have_selector '#error_explanation'
-    assert_contain /Email.*already.*taken/
+    assert_contain(/Email.*already.*taken/)
     assert admin.reload.pending_reconfirmation?
   end
 end
diff --git a/test/models/serializable_test.rb b/test/models/serializable_test.rb
index 946b304d..565b71fe 100644
--- a/test/models/serializable_test.rb
+++ b/test/models/serializable_test.rb
@@ -6,18 +6,18 @@ class SerializableTest < ActiveSupport::TestCase
   end
 
   test 'should not include unsafe keys on XML' do
-    assert_match /email/, @user.to_xml
-    assert_no_match /confirmation-token/, @user.to_xml
+    assert_match(/email/, @user.to_xml)
+    assert_no_match(/confirmation-token/, @user.to_xml)
   end
 
   test 'should not include unsafe keys on XML even if a new except is provided' do
-    assert_no_match /email/, @user.to_xml(:except => :email)
-    assert_no_match /confirmation-token/, @user.to_xml(:except => :email)
+    assert_no_match(/email/, @user.to_xml(:except => :email))
+    assert_no_match(/confirmation-token/, @user.to_xml(:except => :email))
   end
 
   test 'should include unsafe keys on XML if a force_except is provided' do
-    assert_no_match /<email/, @user.to_xml(:force_except => :email)
-    assert_match /confirmation-token/, @user.to_xml(:force_except => :email)
+    assert_no_match(/<email/, @user.to_xml(:force_except => :email))
+    assert_match(/confirmation-token/, @user.to_xml(:force_except => :email))
   end
 
   test 'should not include unsafe keys on JSON' do