polymech - fw latest | web ui

2026-04-18 10:31:24 +02:00
parent a105c5ee85
commit ab2ff368a6
2972 changed files with 441416 additions and 372 deletions
@@ -0,0 +1,39 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2025, Benoit BLANCHON
+// MIT License
+
+#include <ArduinoJson.h>
+#include <catch.hpp>
+
+TEST_CASE("JsonDocument::isNull()") {
+  JsonDocument doc;
+
+  SECTION("returns true if uninitialized") {
+    REQUIRE(doc.isNull() == true);
+  }
+
+  SECTION("returns false after to<JsonObject>()") {
+    doc.to<JsonObject>();
+    REQUIRE(doc.isNull() == false);
+  }
+
+  SECTION("returns false after to<JsonArray>()") {
+    doc.to<JsonArray>();
+    REQUIRE(doc.isNull() == false);
+  }
+
+  SECTION("returns true after to<JsonVariant>()") {
+    REQUIRE(doc.isNull() == true);
+  }
+
+  SECTION("returns false after set()") {
+    doc.to<JsonVariant>().set(42);
+    REQUIRE(doc.isNull() == false);
+  }
+
+  SECTION("returns true after clear()") {
+    doc.to<JsonObject>();
+    doc.clear();
+    REQUIRE(doc.isNull() == true);
+  }
+}