fixed zkutil_test. [#METR-2807]

libs/libzkutil/include/zkutil/ZooKeeper.h

@@ -121,8 +121,6 @@ public:
 						Stat * stat = nullptr,
 						WatchFuture * watch = nullptr);
 
-	void close();
-
 	/** Транзакционно выполняет несколько операций. При любой ошибке бросает исключение.
 	  */
 	OpResultsPtr multi(const Ops & ops);

libs/libzkutil/src/ZooKeeper.cpp

@@ -409,9 +409,13 @@ void ZooKeeper::removeRecursive(const std::string & path)
 	remove(path);
 }
 
-void ZooKeeper::close()
+ZooKeeper::~ZooKeeper()
 {
-	check(zookeeper_close(impl));
+	int code = zookeeper_close(impl);
+	if (code != ZOK)
+	{
+		LOG_ERROR(&Logger::get("~ZooKeeper"), "Failed to close ZooKeeper session: " << zerror(code));
+	}
 
 	/// удаляем WatchWithPromise которые уже никогда не будут обработаны
 	for (WatchWithPromise * watch : watch_store)
@@ -419,18 +423,6 @@ void ZooKeeper::close()
 	watch_store.clear();
 }
 
-ZooKeeper::~ZooKeeper()
-{
-	try
-	{
-		close();
-	}
-	catch(...)
-	{
-		LOG_ERROR(&Logger::get("~ZooKeeper"), "Failed to close ZooKeeper session");
-	}
-}
-
 ZooKeeperPtr ZooKeeper::startNewSession() const
 {
 	return new ZooKeeper(hosts, sessionTimeoutMs, state_watch);

libs/libzkutil/src/tests/zkutil_test.cpp

@@ -209,8 +209,6 @@ int main(int argc, char ** argv)
 				std::cerr << "KeeperException: " << e.displayText() << std::endl;
 			}
 		}
-
-		zk.close();
 	}
 	catch (zkutil::KeeperException & e)
 	{