first commit

libraries/ArduinoJson/extras/tests/MixedConfiguration/use_long_long_0.cpp

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+#define ARDUINOJSON_USE_LONG_LONG 0
+#include <ArduinoJson.h>
+
+#include <catch.hpp>
+
+#include "Literals.hpp"
+
+TEST_CASE("ARDUINOJSON_USE_LONG_LONG == 0") {
+  JsonDocument doc;
+
+  SECTION("smoke test") {
+    doc["A"] = 42;
+    doc["B"] = 84;
+
+    std::string json;
+    serializeJson(doc, json);
+
+    REQUIRE(json == "{\"A\":42,\"B\":84}");
+  }
+
+  SECTION("deserializeMsgPack()") {
+    SECTION("cf 00 00 00 00 ff ff ff ff") {
+      auto err =
+          deserializeMsgPack(doc, "\xcf\x00\x00\x00\x00\xff\xff\xff\xff"_s);
+
+      REQUIRE(err == DeserializationError::Ok);
+      REQUIRE(doc.as<uint32_t>() == 0xFFFFFFFF);
+    }
+
+    SECTION("cf 00 00 00 01 00 00 00 00") {
+      auto err =
+          deserializeMsgPack(doc, "\xcf\x00\x00\x00\x01\x00\x00\x00\x00"_s);
+
+      REQUIRE(err == DeserializationError::Ok);
+      REQUIRE(doc.isNull());
+    }
+  }
+}