4 files changed, 18 insertions, 2 deletions
diff --git a/activemodel/lib/active_model/errors.rb b/activemodel/lib/active_model/errors.rb
index fd87d3c9bc..d7bcfacce3 100644
--- a/activemodel/lib/active_model/errors.rb
+++ b/activemodel/lib/active_model/errors.rb
@@ -64,7 +64,7 @@ module ActiveModel
     include Enumerable
 
     extend Forwardable
-    def_delegators :@errors, :size, :clear, :blank?, :empty?, :uniq!
+    def_delegators :@errors, :size, :clear, :blank?, :empty?, :uniq!, :any?
     # TODO: forward all enumerable methods after `each` deprecation is removed.
     def_delegators :@errors, :count
 
diff --git a/activemodel/lib/active_model/type/integer.rb b/activemodel/lib/active_model/type/integer.rb
index 1e1061ff60..e9bbdf4b7b 100644
--- a/activemodel/lib/active_model/type/integer.rb
+++ b/activemodel/lib/active_model/type/integer.rb
@@ -18,6 +18,11 @@ module ActiveModel
         :integer
       end
 
+      def deserialize(value)
+        return if value.blank?
+        value.to_i
+      end
+
       def serialize(value)
         return if value.is_a?(::String) && non_numeric_string?(value)
         ensure_in_range(super)
diff --git a/activemodel/test/cases/errors_test.rb b/activemodel/test/cases/errors_test.rb
index 0837e9db96..baaf404f2e 100644
--- a/activemodel/test/cases/errors_test.rb
+++ b/activemodel/test/cases/errors_test.rb
@@ -44,6 +44,17 @@ class ErrorsTest < ActiveModel::TestCase
     assert_includes errors, "foo", "errors should include 'foo' as :foo"
   end
 
+  def test_any?
+    errors = ActiveModel::Errors.new(Person.new)
+    errors.add(:name)
+    assert_not_deprecated {
+      assert errors.any?, "any? should return true"
+    }
+    assert_not_deprecated {
+      assert errors.any? { |_| true }, "any? should return true"
+    }
+  end
+
   def test_dup
     errors = ActiveModel::Errors.new(Person.new)
     errors.add(:name)
diff --git a/activemodel/test/cases/nested_error_test.rb b/activemodel/test/cases/nested_error_test.rb
index 5bad100da5..6c2458ba83 100644
--- a/activemodel/test/cases/nested_error_test.rb
+++ b/activemodel/test/cases/nested_error_test.rb
@@ -5,7 +5,7 @@ require "active_model/nested_error"
 require "models/topic"
 require "models/reply"
 
-class ErrorTest < ActiveModel::TestCase
+class NestedErrorTest < ActiveModel::TestCase
   def test_initialize
     topic = Topic.new
     inner_error = ActiveModel::Error.new(topic, :title, :not_enough, count: 2)