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firmware/arduino/get-started/libraries/ArduinoJson/extras/tests/Numbers/parseNumber.cpp

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+// ArduinoJson - https://arduinojson.org
+// Copyright Benoit Blanchon 2014-2021
+// MIT License
+
+#include <ArduinoJson.hpp>
+#include <catch.hpp>
+
+using namespace ARDUINOJSON_NAMESPACE;
+
+TEST_CASE("Test unsigned integer overflow") {
+  VariantData first, second;
+  first.init();
+  second.init();
+
+  // Avoids MSVC warning C4127 (conditional expression is constant)
+  size_t integerSize = sizeof(Integer);
+
+  if (integerSize == 8) {
+    parseNumber("18446744073709551615", first);
+    parseNumber("18446744073709551616", second);
+  } else {
+    parseNumber("4294967295", first);
+    parseNumber("4294967296", second);
+  }
+
+  REQUIRE(first.type() == uint8_t(VALUE_IS_UNSIGNED_INTEGER));
+  REQUIRE(second.type() == uint8_t(VALUE_IS_FLOAT));
+}
+
+TEST_CASE("Test signed integer overflow") {
+  VariantData first, second;
+  first.init();
+  second.init();
+
+  // Avoids MSVC warning C4127 (conditional expression is constant)
+  size_t integerSize = sizeof(Integer);
+
+  if (integerSize == 8) {
+    parseNumber("-9223372036854775808", first);
+    parseNumber("-9223372036854775809", second);
+  } else {
+    parseNumber("-2147483648", first);
+    parseNumber("-2147483649", second);
+  }
+
+  REQUIRE(first.type() == uint8_t(VALUE_IS_SIGNED_INTEGER));
+  REQUIRE(second.type() == uint8_t(VALUE_IS_FLOAT));
+}
+
+TEST_CASE("Invalid value") {
+  VariantData result;
+  result.init();
+
+  parseNumber("6a3", result);
+
+  REQUIRE(result.type() == uint8_t(VALUE_IS_NULL));
+}