forked from bblanchon/ArduinoJson
95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
// ArduinoJson - arduinojson.org
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// Copyright Benoit Blanchon 2014-2018
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// MIT License
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#include <ArduinoJson.h>
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#include <catch.hpp>
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TEST_CASE("JsonVariant::operator[]") {
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SECTION("The JsonVariant is undefined") {
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JsonVariant var = JsonVariant();
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REQUIRE(0 == var.size());
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REQUIRE(var["0"].isNull());
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REQUIRE(var[0].isNull());
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}
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SECTION("The JsonVariant is a string") {
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JsonVariant var = "hello world";
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REQUIRE(0 == var.size());
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REQUIRE(var["0"].isNull());
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REQUIRE(var[0].isNull());
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}
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SECTION("The JsonVariant is a JsonArray") {
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DynamicJsonDocument doc;
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JsonArray array = doc.to<JsonArray>();
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JsonVariant var = array;
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SECTION("get value") {
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array.add("element at index 0");
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array.add("element at index 1");
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REQUIRE(2 == var.size());
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REQUIRE(std::string("element at index 0") == var[0]);
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REQUIRE(std::string("element at index 1") == var[1]);
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REQUIRE(std::string("element at index 0") ==
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var[static_cast<unsigned char>(0)]); // issue #381
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REQUIRE(var[666].isNull());
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REQUIRE(var[3].isNull());
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REQUIRE(var["0"].isNull());
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}
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SECTION("set value") {
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array.add("hello");
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var[0] = "world";
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REQUIRE(1 == var.size());
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REQUIRE(std::string("world") == var[0]);
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}
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SECTION("set value in a nested object") {
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array.createNestedObject();
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var[0]["hello"] = "world";
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REQUIRE(1 == var.size());
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REQUIRE(1 == var[0].size());
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REQUIRE(std::string("world") == var[0]["hello"]);
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}
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}
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SECTION("The JsonVariant is a JsonObject") {
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DynamicJsonDocument doc;
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JsonObject object = doc.to<JsonObject>();
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JsonVariant var = object;
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SECTION("get value") {
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object["a"] = "element at key \"a\"";
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object["b"] = "element at key \"b\"";
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REQUIRE(2 == var.size());
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REQUIRE(std::string("element at key \"a\"") == var["a"]);
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REQUIRE(std::string("element at key \"b\"") == var["b"]);
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REQUIRE(var["c"].isNull());
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REQUIRE(var[0].isNull());
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}
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SECTION("set value, key is a const char*") {
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var["hello"] = "world";
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REQUIRE(1 == var.size());
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REQUIRE(std::string("world") == var["hello"]);
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}
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SECTION("set value, key is a char[]") {
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char key[] = "hello";
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var[key] = "world";
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key[0] = '!'; // make sure the key is duplicated
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REQUIRE(1 == var.size());
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REQUIRE(std::string("world") == var["hello"]);
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}
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}
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}
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