test: corrected Endpoint spec to ensure Polymarket::Client is used

Author: bougyman

lib/domeapi/polymarket/endpoint.rb

@@ -13,7 +13,7 @@ class Endpoint
         #
         # @return [void]
         def initialize(client = nil)
-          @client = client || ::Rubyists::Domeapi::Client.new
+          @client = client || Client.new
         end
       end
     end

lib/domeapi/polymarket/markets.rb

@@ -4,13 +4,11 @@ module Rubyists
   module Domeapi
     module Polymarket
       # Markets API endpoints
-      class Markets
+      class Markets < Endpoint
         include Listable
 
         polymarket_path 'markets'
 
-        attr_reader :client
-
         # Filter for Polymarket markets,
         # from https://docs.domeapi.io/api-reference/endpoint/get-markets
         class Filter < Contract
@@ -26,13 +24,6 @@ class Filter < Contract
           end
         end
 
-        # @param client [Rubyists::Domeapi::Polymarket::Client]
-        #
-        # @return [void]
-        def initialize(client = Rubyists::Domeapi::Polymarket::Client.new)
-          @client = client
-        end
-
         # Fetch current or historical price for a market
         #
         # @param token_id [String]

test/domeapi/polymarket/endpoint_test.rb

@@ -6,7 +6,7 @@
   it 'initializes with default client' do
     endpoint = Rubyists::Domeapi::Polymarket::Endpoint.new
 
-    _(endpoint.client).must_be_instance_of Rubyists::Domeapi::Client
+    _(endpoint.client).must_be_instance_of Rubyists::Domeapi::Polymarket::Client
   end
 
   it 'initializes with provided client' do