fix: Calling stop in ldd mode no longer raises an exception

lib/ldclient-rb/impl/integrations/redis_impl.rb

@@ -112,7 +112,7 @@ def initialize(opts)
             @pool = create_redis_pool(opts)
 
             # shutdown pool on close unless the client passed a custom pool and specified not to shutdown
-            @pool_shutdown_on_close = (!opts[:pool] || opts.fetch(:pool_shutdown_on_close, true))
+            @pool_shutdown_on_close = !opts[:pool] || opts.fetch(:pool_shutdown_on_close, true)
 
             @prefix = opts[:prefix] || LaunchDarkly::Integrations::Redis::default_prefix
             @logger = opts[:logger] || Config.default_logger

lib/ldclient-rb/ldclient.rb

@@ -87,6 +87,7 @@ def initialize(sdk_key, config = Config.default, wait_for_sec = 5)
 
       if @config.use_ldd?
         @config.logger.info { "[LDClient] Started LaunchDarkly Client in LDD mode" }
+        @data_source = NullUpdateProcessor.new
         return  # requestor and update processor are not used in this mode
       end
 

spec/ldclient_spec.rb

@@ -45,6 +45,23 @@ module LaunchDarkly
       end
     end
 
+    context "client can be stopped" do
+      it "when in online mode" do
+        client = subject.new("sdk-key", Config.new)
+        client.close()
+      end
+
+      it "when in offline mode" do
+        client = subject.new("sdk-key", Config.new(offline: true))
+        client.close()
+      end
+
+      it "when in ldd mode" do
+        client = subject.new("sdk-key", Config.new(use_ldd: true))
+        client.close()
+      end
+    end
+
     context "secure_mode_hash" do
       it "will return the expected value for a known message and secret" do
         ensure_close(subject.new("secret", test_config)) do |client|