Fix Definition#inspect

Author: ahx

lib/openapi_first/definition.rb

@@ -59,7 +59,7 @@ def key
     end
 
     def inspect
-      "#<#{self.class.name} @key=#{key}>"
+      "#<#{self.class.name} @key='#{key}'>"
     end
 
     # Validates the request against the API description.

spec/definition_spec.rb

@@ -12,6 +12,13 @@ def build_request(path, method: 'GET')
     end
   end
 
+  describe '#inspect' do
+    it 'returns a frozen configuration' do
+      definition = OpenapiFirst.load('./spec/data/petstore.yaml')
+      expect(definition.inspect).to eq("#<OpenapiFirst::Definition @key='./spec/data/petstore.yaml'>")
+    end
+  end
+
   describe '#[]' do
     it 'gives access to the raw hash' do
       definition = OpenapiFirst.load('./spec/data/train-travel-api/openapi.yaml')