Add #except under Ruby 3

Ruby 3 adds the Hash#except method, which should return the correct
Hashie object instance when called on a Mash or object using the
Hashie::Extensions::IndifferentAccess mixin.

1 files changed, 12 insertions, 0 deletions

diff --git a/spec/hashie/extensions/indifferent_access_spec.rb b/spec/hashie/extensions/indifferent_access_spec.rb
index 0aec787..27585f1 100644
--- a/spec/hashie/extensions/indifferent_access_spec.rb
+++ b/spec/hashie/extensions/indifferent_access_spec.rb
@@ -357,6 +357,18 @@ describe Hashie::Extensions::IndifferentAccess do
         end
       end
     end
+
+    with_minimum_ruby('3.0.0') do
+      describe '#except' do
+        let(:h) { subject.build(foo: 'bar', baz: 'qux') }
+
+        it 'indifferently excepts keys from the hash' do
+          sliced_h = { 'baz' => 'qux' }
+          expect(h.except('foo')).to eq sliced_h
+          expect(h.except(:foo)).to eq sliced_h
+        end
+      end
+    end
   end
 
   describe 'with merge initializer' do