Fix Rubocop test lints - 2022-10 (#934)

Shifts integration test into appropriate file, ensures we have a memcached instance running, and uses a protocol from that client for the tests.

test/integration/test_pipelined_get.rb

@@ -71,6 +71,30 @@
           assert_empty expected_resp
         end
       end
+
+      describe 'pipeline_next_responses' do
+        it 'raises NetworkError when called before pipeline_response_setup' do
+          memcached_persistent(p) do |dc|
+            server = dc.instance_variable_get(:@ring).servers.first
+            server.request(:pipelined_get, %w[a b])
+            assert_raises Dalli::NetworkError do
+              server.pipeline_next_responses
+            end
+          end
+        end
+
+        it 'raises NetworkError when called after pipeline_abort' do
+          memcached_persistent(p) do |dc|
+            server = dc.instance_variable_get(:@ring).servers.first
+            server.request(:pipelined_get, %w[a b])
+            server.pipeline_response_setup
+            server.pipeline_abort
+            assert_raises Dalli::NetworkError do
+              server.pipeline_next_responses
+            end
+          end
+        end
+      end
     end
   end
 end

test/protocol/test_binary.rb

@@ -98,24 +98,4 @@
       expect(-> { Dalli::Protocol::Binary.new('my.fqdn.com:11212:abc') }).must_raise Dalli::DalliError
     end
   end
-
-  describe 'pipeline_next_responses' do
-    subject { Dalli::Protocol::Binary.new('127.0.0.1') }
-
-    it 'raises NetworkError when called before pipeline_response_setup' do
-      assert_raises Dalli::NetworkError do
-        subject.request(:pipelined_get, %w[a b])
-        subject.pipeline_next_responses
-      end
-    end
-
-    it 'raises NetworkError when called after pipeline_abort' do
-      assert_raises Dalli::NetworkError do
-        subject.request(:pipelined_get, %w[a b])
-        subject.pipeline_response_setup
-        subject.pipeline_abort
-        subject.pipeline_next_responses
-      end
-    end
-  end
 end