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// ArduinoJson - https://arduinojson.org
// Copyright © 2014-2024, Benoit BLANCHON
// MIT License
#include <ArduinoJson.h>
#include <catch.hpp>
#include "Allocators.hpp"
TEST_CASE("JsonDocument assignment") {
SpyingAllocator spyingAllocator;
SECTION("Copy assignment same capacity") {
JsonDocument doc1(&spyingAllocator);
deserializeJson(doc1, "{\"hello\":\"world\"}");
JsonDocument doc2(&spyingAllocator);
spyingAllocator.clearLog();
doc2 = doc1;
REQUIRE(doc2.as<std::string>() == "{\"hello\":\"world\"}");
REQUIRE(spyingAllocator.log() == AllocatorLog{
Allocate(sizeofString("hello")),
Allocate(sizeofPool()),
Allocate(sizeofString("world")),
});
}
SECTION("Copy assignment reallocates when capacity is smaller") {
JsonDocument doc1(&spyingAllocator);
deserializeJson(doc1, "[{\"hello\":\"world\"}]");
JsonDocument doc2(&spyingAllocator);
spyingAllocator.clearLog();
doc2 = doc1;
REQUIRE(doc2.as<std::string>() == "[{\"hello\":\"world\"}]");
REQUIRE(spyingAllocator.log() == AllocatorLog{
Allocate(sizeofPool()),
Allocate(sizeofString("hello")),
Allocate(sizeofString("world")),
});
}
SECTION("Copy assignment reallocates when capacity is larger") {
JsonDocument doc1(&spyingAllocator);
deserializeJson(doc1, "{\"hello\":\"world\"}");
JsonDocument doc2(&spyingAllocator);
spyingAllocator.clearLog();
doc2 = doc1;
REQUIRE(doc2.as<std::string>() == "{\"hello\":\"world\"}");
REQUIRE(spyingAllocator.log() == AllocatorLog{
Allocate(sizeofString("hello")),
Allocate(sizeofPool()),
Allocate(sizeofString("world")),
});
}
SECTION("Move assign") {
{
JsonDocument doc1(&spyingAllocator);
doc1[std::string("hello")] = std::string("world");
JsonDocument doc2(&spyingAllocator);
doc2 = std::move(doc1);
REQUIRE(doc2.as<std::string>() == "{\"hello\":\"world\"}");
REQUIRE(doc1.as<std::string>() == "null");
}
REQUIRE(spyingAllocator.log() == AllocatorLog{
Allocate(sizeofString("hello")),
Allocate(sizeofPool()),
Allocate(sizeofString("world")),
Deallocate(sizeofString("hello")),
Deallocate(sizeofString("world")),
Deallocate(sizeofPool()),
});
}
SECTION("Assign from JsonObject") {
JsonDocument doc1;
JsonObject obj = doc1.to<JsonObject>();
obj["hello"] = "world";
JsonDocument doc2;
doc2 = obj;
REQUIRE(doc2.as<std::string>() == "{\"hello\":\"world\"}");
}
SECTION("Assign from JsonArray") {
JsonDocument doc1;
JsonArray arr = doc1.to<JsonArray>();
arr.add("hello");
JsonDocument doc2;
doc2 = arr;
REQUIRE(doc2.as<std::string>() == "[\"hello\"]");
}
SECTION("Assign from JsonVariant") {
JsonDocument doc1;
deserializeJson(doc1, "42");
JsonDocument doc2;
doc2 = doc1.as<JsonVariant>();
REQUIRE(doc2.as<std::string>() == "42");
}
SECTION("Assign from MemberProxy") {
JsonDocument doc1;
doc1["value"] = 42;
JsonDocument doc2;
doc2 = doc1["value"];
REQUIRE(doc2.as<std::string>() == "42");
}
SECTION("Assign from ElementProxy") {
JsonDocument doc1;
doc1[0] = 42;
JsonDocument doc2;
doc2 = doc1[0];
REQUIRE(doc2.as<std::string>() == "42");
}
}