Merge pull request #8398 from rmascarenhas/active-model-errors-spec-fixes

ActiveModel::Errors spec fixes

activemodel/test/cases/errors_test.rb

@@ -116,7 +116,7 @@ def test_has_key?
 
   test "added? should default message to :invalid" do
     person = Person.new
-    person.errors.add(:name, :invalid)
+    person.errors.add(:name)
     assert person.errors.added?(:name)
   end
 
@@ -161,7 +161,7 @@ def test_has_key?
     person = Person.new
     person.errors.add(:name, "can not be blank")
     person.errors.add(:name, "can not be nil")
-    assert_equal ["name can not be blank", "name can not be nil"], person.errors.to_a
+    assert_equal ["name can not be blank", "name can not be nil"], person.errors.full_messages
   end
 
   test 'full_message should return the given message if attribute equals :base' do
@@ -240,4 +240,3 @@ def test_has_key?
     person.errors.add_on_blank :name, :message => 'custom'
   end
 end
-