1 files changed, 17 insertions, 0 deletions
diff --git a/activemodel/test/cases/errors_test.rb b/activemodel/test/cases/errors_test.rb
index 79b45bb298..a24cac40ad 100644
--- a/activemodel/test/cases/errors_test.rb
+++ b/activemodel/test/cases/errors_test.rb
@@ -25,7 +25,19 @@ class ErrorsTest < ActiveModel::TestCase
     def self.lookup_ancestors
       [self]
     end
+  end
+
+  def test_include?
+    errors = ActiveModel::Errors.new(self)
+    errors[:foo] = 'omg'
+    assert errors.include?(:foo), 'errors should include :foo'
+  end
 
+  test "should return true if no errors" do
+    person = Person.new
+    person.errors[:foo]
+    assert person.errors.empty?
+    assert person.errors.blank?
   end
 
   test "method validate! should work" do
@@ -62,4 +74,9 @@ class ErrorsTest < ActiveModel::TestCase
 
   end
 
+  test 'to_hash should return an ordered hash' do
+    person = Person.new
+    person.errors.add(:name, "can not be blank")
+    assert_instance_of ActiveSupport::OrderedHash, person.errors.to_hash
+  end
 end