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// ArduinoJson - https://arduinojson.org
// Copyright © 2014-2022, Benoit BLANCHON
// MIT License
#include <ArduinoJson.h>
#include <catch.hpp>
template <typename TOut, typename TIn>
void shouldBeOk(TIn value) {
StaticJsonDocument<1> doc;
JsonVariant var = doc.to<JsonVariant>();
var.set(value);
REQUIRE(var.as<TOut>() == TOut(value));
}
template <typename TOut, typename TIn>
void shouldOverflow(TIn value) {
StaticJsonDocument<1> doc;
JsonVariant var = doc.to<JsonVariant>();
var.set(value);
REQUIRE(var.as<TOut>() == 0);
REQUIRE(var.is<TOut>() == false);
}
TEST_CASE("Handle integer overflow in stored integer") {
SECTION("int8_t") {
// ok
shouldBeOk<int8_t>(-128);
shouldBeOk<int8_t>(42.0);
shouldBeOk<int8_t>(127);
// too low
shouldOverflow<int8_t>(-128.1);
shouldOverflow<int8_t>(-129);
// too high
shouldOverflow<int8_t>(128);
shouldOverflow<int8_t>(127.1);
}
SECTION("int16_t") {
// ok
shouldBeOk<int16_t>(-32768);
shouldBeOk<int16_t>(-32767.9);
shouldBeOk<int16_t>(32766.9);
shouldBeOk<int16_t>(32767);
// too low
shouldOverflow<int16_t>(-32768.1);
shouldOverflow<int16_t>(-32769);
// too high
shouldOverflow<int16_t>(32767.1);
shouldOverflow<int16_t>(32768);
}
SECTION("uint8_t") {
// ok
shouldBeOk<uint8_t>(1);
shouldBeOk<uint8_t>(42.0);
shouldBeOk<uint8_t>(255);
// too low
shouldOverflow<uint8_t>(-1);
shouldOverflow<uint8_t>(-0.1);
// to high
shouldOverflow<uint8_t>(255.1);
shouldOverflow<uint8_t>(256);
shouldOverflow<uint8_t>(257);
}
}