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libraries/ArduinoJson/extras/tests/JsonArray/add.cpp

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+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2024, Benoit BLANCHON
+// MIT License
+
+#include <ArduinoJson.h>
+#include <catch.hpp>
+
+#include "Allocators.hpp"
+
+using ArduinoJson::detail::sizeofArray;
+
+TEST_CASE("JsonArray::add(T)") {
+  SpyingAllocator spy;
+  JsonDocument doc(&spy);
+  JsonArray array = doc.to<JsonArray>();
+
+  SECTION("int") {
+    array.add(123);
+    REQUIRE(123 == array[0].as<int>());
+    REQUIRE(array[0].is<int>());
+    REQUIRE(array[0].is<double>());
+  }
+
+  SECTION("double") {
+    array.add(123.45);
+    REQUIRE(123.45 == array[0].as<double>());
+    REQUIRE(array[0].is<double>());
+    REQUIRE_FALSE(array[0].is<bool>());
+  }
+
+  SECTION("bool") {
+    array.add(true);
+    REQUIRE(true == array[0].as<bool>());
+    REQUIRE(array[0].is<bool>());
+    REQUIRE_FALSE(array[0].is<int>());
+  }
+
+  SECTION("const char*") {
+    const char* str = "hello";
+    array.add(str);
+    REQUIRE(str == array[0].as<std::string>());
+    REQUIRE(array[0].is<const char*>());
+    REQUIRE_FALSE(array[0].is<int>());
+  }
+
+#ifdef HAS_VARIABLE_LENGTH_ARRAY
+  SECTION("vla") {
+    size_t i = 16;
+    char vla[i];
+    strcpy(vla, "world");
+
+    array.add(vla);
+
+    REQUIRE(std::string("world") == array[0]);
+  }
+#endif
+
+  SECTION("nested array") {
+    JsonDocument doc2;
+    JsonArray arr = doc2.to<JsonArray>();
+
+    array.add(arr);
+
+    REQUIRE(arr == array[0].as<JsonArray>());
+    REQUIRE(array[0].is<JsonArray>());
+    REQUIRE_FALSE(array[0].is<int>());
+  }
+
+  SECTION("nested object") {
+    JsonDocument doc2;
+    JsonObject obj = doc2.to<JsonObject>();
+
+    array.add(obj);
+
+    REQUIRE(obj == array[0].as<JsonObject>());
+    REQUIRE(array[0].is<JsonObject>());
+    REQUIRE_FALSE(array[0].is<int>());
+  }
+
+  SECTION("array subscript") {
+    const char* str = "hello";
+    JsonDocument doc2;
+    JsonArray arr = doc2.to<JsonArray>();
+    arr.add(str);
+
+    array.add(arr[0]);
+
+    REQUIRE(str == array[0]);
+  }
+
+  SECTION("object subscript") {
+    const char* str = "hello";
+    JsonDocument doc2;
+    JsonObject obj = doc2.to<JsonObject>();
+    obj["x"] = str;
+
+    array.add(obj["x"]);
+
+    REQUIRE(str == array[0]);
+  }
+
+  SECTION("should not duplicate const char*") {
+    array.add("world");
+    REQUIRE(spy.log() == AllocatorLog{
+                             Allocate(sizeofPool()),
+                         });
+  }
+
+  SECTION("should duplicate char*") {
+    array.add(const_cast<char*>("world"));
+    REQUIRE(spy.log() == AllocatorLog{
+                             Allocate(sizeofPool()),
+                             Allocate(sizeofString("world")),
+                         });
+  }
+
+  SECTION("should duplicate std::string") {
+    array.add(std::string("world"));
+    REQUIRE(spy.log() == AllocatorLog{
+                             Allocate(sizeofPool()),
+                             Allocate(sizeofString("world")),
+                         });
+  }
+
+  SECTION("should duplicate serialized(const char*)") {
+    array.add(serialized("{}"));
+    REQUIRE(spy.log() == AllocatorLog{
+                             Allocate(sizeofPool()),
+                             Allocate(sizeofString("{}")),
+                         });
+  }
+
+  SECTION("should duplicate serialized(char*)") {
+    array.add(serialized(const_cast<char*>("{}")));
+    REQUIRE(spy.log() == AllocatorLog{
+                             Allocate(sizeofPool()),
+                             Allocate(sizeofString("{}")),
+                         });
+  }
+
+  SECTION("should duplicate serialized(std::string)") {
+    array.add(serialized(std::string("{}")));
+    REQUIRE(spy.log() == AllocatorLog{
+                             Allocate(sizeofPool()),
+                             Allocate(sizeofString("{}")),
+                         });
+  }
+
+  SECTION("should duplicate serialized(std::string)") {
+    array.add(serialized(std::string("\0XX", 3)));
+    REQUIRE(spy.log() == AllocatorLog{
+                             Allocate(sizeofPool()),
+                             Allocate(sizeofString(" XX")),
+                         });
+  }
+}
+
+TEST_CASE("JsonArray::add<T>()") {
+  JsonDocument doc;
+  JsonArray array = doc.to<JsonArray>();
+
+  SECTION("add<JsonArray>()") {
+    JsonArray nestedArray = array.add<JsonArray>();
+    nestedArray.add(1);
+    nestedArray.add(2);
+    REQUIRE(doc.as<std::string>() == "[[1,2]]");
+  }
+
+  SECTION("add<JsonObject>()") {
+    JsonObject nestedObject = array.add<JsonObject>();
+    nestedObject["a"] = 1;
+    nestedObject["b"] = 2;
+    REQUIRE(doc.as<std::string>() == "[{\"a\":1,\"b\":2}]");
+  }
+
+  SECTION("add<JsonVariant>()") {
+    JsonVariant nestedVariant = array.add<JsonVariant>();
+    nestedVariant.set(42);
+    REQUIRE(doc.as<std::string>() == "[42]");
+  }
+}