Add test support for new validations

test/acts_as_authentic_test/password_test.rb

@@ -111,16 +111,25 @@ def test_validates_length_of_password
 
       u.password = "test"
       assert !u.valid?
-      assert u.errors[:password_confirmation].size == 0
+
+      if ActiveModel.respond_to?(:version) and ActiveModel.version.segments.first >= 4
+        assert u.errors[:password_confirmation].size == 5
+      else
+        assert u.errors[:password_confirmation].size == 0
+      end
     end
 
     def test_validates_confirmation_of_password
       u = User.new
       u.password = "test"
       u.password_confirmation = "test2"
       assert !u.valid?
-      assert u.errors[:password].size > 0
-
+#      assert u.errors[:password].size > 0
+      if ActiveModel.respond_to?(:version) and ActiveModel.version.segments.first >= 4
+        assert u.errors[:password_confirmation].size > 0
+      else
+        assert u.errors[:password].size > 0
+      end
       u.password_confirmation = "test"
       assert !u.valid?
       assert u.errors[:password].size == 0