Test: split JsonDocument.cpp into multiple files

extras/tests/JsonDocument/assignment.cpp

@@ -0,0 +1,90 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2023, Benoit BLANCHON
+// MIT License
+
+#include <ArduinoJson.h>
+#include <catch.hpp>
+
+using ArduinoJson::detail::sizeofArray;
+using ArduinoJson::detail::sizeofObject;
+
+TEST_CASE("JsonDocument assignment") {
+  SECTION("Copy assignment reallocates when capacity is smaller") {
+    JsonDocument doc1(1234);
+    deserializeJson(doc1, "{\"hello\":\"world\"}");
+    JsonDocument doc2(8);
+
+    doc2 = doc1;
+
+    REQUIRE(doc2.as<std::string>() == "{\"hello\":\"world\"}");
+    REQUIRE(doc2.capacity() == doc1.capacity());
+  }
+
+  SECTION("Copy assignment reallocates when capacity is larger") {
+    JsonDocument doc1(100);
+    deserializeJson(doc1, "{\"hello\":\"world\"}");
+    JsonDocument doc2(1234);
+
+    doc2 = doc1;
+
+    REQUIRE(doc2.as<std::string>() == "{\"hello\":\"world\"}");
+    REQUIRE(doc2.capacity() == doc1.capacity());
+  }
+
+  SECTION("Assign from JsonObject") {
+    JsonDocument doc1(200);
+    JsonObject obj = doc1.to<JsonObject>();
+    obj["hello"] = "world";
+
+    JsonDocument doc2(4096);
+    doc2 = obj;
+
+    REQUIRE(doc2.as<std::string>() == "{\"hello\":\"world\"}");
+    REQUIRE(doc2.capacity() == 4096);
+  }
+
+  SECTION("Assign from JsonArray") {
+    JsonDocument doc1(200);
+    JsonArray arr = doc1.to<JsonArray>();
+    arr.add("hello");
+
+    JsonDocument doc2(4096);
+    doc2 = arr;
+
+    REQUIRE(doc2.as<std::string>() == "[\"hello\"]");
+    REQUIRE(doc2.capacity() == 4096);
+  }
+
+  SECTION("Assign from JsonVariant") {
+    JsonDocument doc1(200);
+    deserializeJson(doc1, "42");
+
+    JsonDocument doc2(4096);
+    doc2 = doc1.as<JsonVariant>();
+
+    REQUIRE(doc2.as<std::string>() == "42");
+    REQUIRE(doc2.capacity() == 4096);
+  }
+
+  SECTION("Assign from MemberProxy") {
+    JsonDocument doc1(200);
+    doc1["value"] = 42;
+
+    JsonDocument doc2(4096);
+    doc2 = doc1["value"];
+
+    REQUIRE(doc2.as<std::string>() == "42");
+    REQUIRE(doc2.capacity() == 4096);
+  }
+
+  SECTION("Assign from ElementProxy") {
+    JsonDocument doc1(200);
+    doc1[0] = 42;
+
+    JsonDocument doc2(4096);
+    doc2 = doc1[0];
+
+    REQUIRE(doc2.as<std::string>() == "42");
+    REQUIRE(doc2.capacity() == 4096);
+  }
+}