Signed-off-by: myperworld <myperworld@126.com>

V1.0/Shibo-main-TOMMY/lib/ArduinoJson/extras/tests/JsonVariant/clear.cpp

@@ -0,0 +1,26 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2023, Benoit BLANCHON
+// MIT License
+
+#include <ArduinoJson.h>
+#include <stdint.h>
+#include <catch.hpp>
+
+TEST_CASE("JsonVariant::clear()") {
+  DynamicJsonDocument doc(4096);
+  JsonVariant var = doc.to<JsonVariant>();
+
+  SECTION("size goes back to zero") {
+    var.add(42);
+    var.clear();
+
+    REQUIRE(var.size() == 0);
+  }
+
+  SECTION("isNull() return true") {
+    var.add("hello");
+    var.clear();
+
+    REQUIRE(var.isNull() == true);
+  }
+}