Fix Resource#to_h returning nil instead of matching #to_hash

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 * [#298](https://github.com/codegram/hyperclient/pull/300): Upgraded RuboCop to 1.80.2 - [@dblock](https://github.com/dblock).
 * [#298](https://github.com/codegram/hyperclient/pull/298): Upgraded RuboCop to 1.63.5 - [@dblock](https://github.com/dblock).
+* [#319](https://github.com/codegram/hyperclient/pull/319): Fixed `Resource#to_h` returning `nil` instead of the same result as `#to_hash` - [@dblock](https://github.com/dblock).
 * [#320](https://github.com/codegram/hyperclient/pull/320): Documented how to handle non-`hal+json` responses via the Faraday response middleware's `content_type` matcher - [@dblock](https://github.com/dblock).
 * [#321](https://github.com/codegram/hyperclient/pull/321): Added Ruby 4.0 to the CI test matrix - [@dblock](https://github.com/dblock).
 * Your contribution here.

lib/hyperclient/resource.rb

@@ -66,6 +66,18 @@ def [](name)
       send(name) if respond_to?(name)
     end
 
+    # Public: Returns the attributes of the Resource as a Hash.
+    #
+    # Delegates explicitly (rather than relying on method_missing) since
+    # Array also defines #to_h (but not #to_hash), which meant the
+    # `Array.method_defined?(method)` guard in method_missing let #to_hash
+    # through but silently swallowed #to_h, returning nil instead of the
+    # attributes hash.
+    def to_h
+      _attributes.to_h
+    end
+    alias to_hash to_h
+
     def fetch(key, *args)
       return self[key] if respond_to?(key)
 

test/hyperclient/collection_test.rb

@@ -41,6 +41,16 @@ module Hyperclient
       end
     end
 
+    describe '#to_h' do
+      it 'returns the wrapped collection as a hash' do
+        _(collection.to_h).must_be_kind_of Hash
+      end
+
+      it 'returns the same result as #to_hash' do
+        _(collection.to_h).must_equal(collection.to_hash)
+      end
+    end
+
     describe '#to_s' do
       it 'returns the wrapped collection as a hash' do
         _(collection.to_s).must_be_kind_of Hash

test/hyperclient/resource_test.rb

@@ -239,5 +239,19 @@ module Hyperclient
         _(resource.inspect).must_include 'attributes:'
       end
     end
+
+    describe '#to_h and #to_hash' do
+      let(:resource) do
+        Resource.new({ '_links' => {}, 'title' => 'Order', 'total' => 42 }, entry_point)
+      end
+
+      it 'returns the attributes as a Hash from #to_hash' do
+        _(resource.to_hash).must_equal('title' => 'Order', 'total' => 42)
+      end
+
+      it 'returns the same result from #to_h as #to_hash' do
+        _(resource.to_h).must_equal(resource.to_hash)
+      end
+    end
   end
 end