优化了平衡，尤其对于向后倾倒的几种极限情况进行优化

Shibo-main-TOMMY/lib/ArduinoJson/extras/tests/JsonArray/createNested.cpp

@@ -0,0 +1,21 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2023, Benoit BLANCHON
+// MIT License
+
+#include <ArduinoJson.h>
+#include <catch.hpp>
+
+TEST_CASE("JsonArray basics") {
+  DynamicJsonDocument doc(4096);
+  JsonArray array = doc.to<JsonArray>();
+
+  SECTION("CreateNestedArray") {
+    JsonArray arr = array.createNestedArray();
+    REQUIRE(arr == array[0].as<JsonArray>());
+  }
+
+  SECTION("CreateNestedObject") {
+    JsonObject obj = array.createNestedObject();
+    REQUIRE(obj == array[0].as<JsonObject>());
+  }
+}