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105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
// ArduinoJson - https://arduinojson.org
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// Copyright © 2014-2025, Benoit BLANCHON
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// MIT License
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#include <ArduinoJson.h>
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#include <catch.hpp>
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#include "Literals.hpp"
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TEST_CASE("JsonVariantConst::operator[]") {
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JsonDocument doc;
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JsonVariantConst var = doc.to<JsonVariant>();
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SECTION("null") {
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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("string") {
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doc.set("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("array") {
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JsonArray array = doc.to<JsonArray>();
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array.add("A");
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array.add("B");
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SECTION("int") {
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REQUIRE("A"_s == var[0]);
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REQUIRE("B"_s == var[1]);
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REQUIRE("A"_s == 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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}
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SECTION("const char*") {
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REQUIRE(var["0"].isNull());
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}
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SECTION("JsonVariant") {
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array.add(1);
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REQUIRE(var[var[2]] == "B"_s);
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REQUIRE(var[var[3]].isNull());
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}
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}
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SECTION("object") {
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JsonObject object = doc.to<JsonObject>();
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object["ab"_s] = "AB";
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object["abc"_s] = "ABC";
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object["abc\0d"_s] = "ABCD";
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SECTION("string literal") {
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REQUIRE(var["ab"] == "AB"_s);
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REQUIRE(var["abc"] == "ABC"_s);
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REQUIRE(var["abc\0d"] == "ABCD"_s);
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REQUIRE(var["def"].isNull());
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REQUIRE(var[0].isNull());
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}
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SECTION("const char*") {
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REQUIRE(var[static_cast<const char*>("ab")] == "AB"_s);
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REQUIRE(var[static_cast<const char*>("abc")] == "ABC"_s);
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REQUIRE(var[static_cast<const char*>("abc\0d")] == "ABC"_s);
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REQUIRE(var[static_cast<const char*>("def")].isNull());
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REQUIRE(var[static_cast<const char*>(0)].isNull());
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}
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SECTION("supports std::string") {
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REQUIRE(var["ab"_s] == "AB"_s);
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REQUIRE(var["abc"_s] == "ABC"_s);
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REQUIRE(var["abc\0d"_s] == "ABCD"_s);
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REQUIRE(var["def"_s].isNull());
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}
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#if defined(HAS_VARIABLE_LENGTH_ARRAY) && \
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!defined(SUBSCRIPT_CONFLICTS_WITH_BUILTIN_OPERATOR)
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SECTION("supports VLA") {
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size_t i = 16;
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char vla[i];
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strcpy(vla, "abc");
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REQUIRE(var[vla] == "ABC"_s);
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}
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#endif
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SECTION("supports JsonVariant") {
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object["key1"] = "ab";
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object["key2"] = "abc";
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object["key3"] = "abc\0d"_s;
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object["key4"] = "foo";
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REQUIRE(var[var["key1"]] == "AB"_s);
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REQUIRE(var[var["key2"]] == "ABC"_s);
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REQUIRE(var[var["key3"]] == "ABCD"_s);
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REQUIRE(var[var["key4"]].isNull());
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REQUIRE(var[var["key5"]].isNull());
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}
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}
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}
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