Test: extracted executable Cpp11Tests

extras/tests/Cpp11/CMakeLists.txt

@@ -0,0 +1,32 @@
+# ArduinoJson - https://arduinojson.org
+# Copyright Benoit Blanchon 2014-2021
+# MIT License
+
+if("cxx_nullptr" IN_LIST CMAKE_CXX_COMPILE_FEATURES)
+	list(APPEND SOURCES nullptr.cpp)
+	add_definitions(-DARDUINOJSON_HAS_NULLPTR=1)
+endif()
+
+if("cxx_auto_type" IN_LIST CMAKE_CXX_COMPILE_FEATURES AND "cxx_constexpr" IN_LIST CMAKE_CXX_COMPILE_FEATURES)
+	list(APPEND SOURCES issue1120.cpp)
+endif()
+
+if("cxx_long_long_type" IN_LIST CMAKE_CXX_COMPILE_FEATURES)
+	list(APPEND SOURCES use_long_long_0.cpp use_long_long_1.cpp)
+endif()
+
+if(NOT SOURCES)
+	return()
+endif()
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+add_executable(Cpp11Tests ${SOURCES})
+
+add_test(Cpp11 Cpp11Tests)
+
+set_tests_properties(Cpp11
+	PROPERTIES
+		LABELS 		"Catch"
+)

extras/tests/Cpp11/issue1120.cpp

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+#include <ArduinoJson.h>
+
+#include <catch.hpp>
+
+TEST_CASE("Issue #1120") {
+  StaticJsonDocument<500> doc;
+  constexpr char str[] =
+      "{\"contents\":[{\"module\":\"Packet\"},{\"module\":\"Analog\"}]}";
+  deserializeJson(doc, str);
+
+  SECTION("MemberProxy<std::string>::isNull()") {
+    SECTION("returns false") {
+      auto value = doc[std::string("contents")];
+      CHECK(value.isNull() == false);
+    }
+
+    SECTION("returns true") {
+      auto value = doc[std::string("zontents")];
+      CHECK(value.isNull() == true);
+    }
+  }
+
+  SECTION("ElementProxy<MemberProxy<const char*> >::isNull()") {
+    SECTION("returns false") {  // Issue #1120
+      auto value = doc["contents"][1];
+      CHECK(value.isNull() == false);
+    }
+
+    SECTION("returns true") {
+      auto value = doc["contents"][2];
+      CHECK(value.isNull() == true);
+    }
+  }
+
+  SECTION("MemberProxy<ElementProxy<MemberProxy>, const char*>::isNull()") {
+    SECTION("returns false") {
+      auto value = doc["contents"][1]["module"];
+      CHECK(value.isNull() == false);
+    }
+
+    SECTION("returns true") {
+      auto value = doc["contents"][1]["zodule"];
+      CHECK(value.isNull() == true);
+    }
+  }
+
+  SECTION("MemberProxy<ElementProxy<MemberProxy>, std::string>::isNull()") {
+    SECTION("returns false") {
+      auto value = doc["contents"][1][std::string("module")];
+      CHECK(value.isNull() == false);
+    }
+
+    SECTION("returns true") {
+      auto value = doc["contents"][1][std::string("zodule")];
+      CHECK(value.isNull() == true);
+    }
+  }
+}

extras/tests/Cpp11/nullptr.cpp

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+#include <ArduinoJson.h>
+
+#include <catch.hpp>
+
+#if !ARDUINOJSON_HAS_NULLPTR
+#  error ARDUINOJSON_HAS_NULLPTR must be set to 1
+#endif
+
+TEST_CASE("nullptr") {
+  DynamicJsonDocument doc(4096);
+  JsonVariant variant = doc.to<JsonVariant>();
+
+  SECTION("JsonVariant == nullptr") {
+    REQUIRE((variant == nullptr));
+    REQUIRE_FALSE((variant != nullptr));
+  }
+
+  SECTION("JsonVariant != nullptr") {
+    variant.set(42);
+
+    REQUIRE_FALSE((variant == nullptr));
+    REQUIRE((variant != nullptr));
+  }
+
+  SECTION("JsonVariant.set(nullptr)") {
+    variant.set(42);
+    variant.set(nullptr);
+
+    REQUIRE(variant.isNull());
+  }
+
+  SECTION("JsonVariant.is<nullptr_t>()") {
+    variant.set(42);
+    REQUIRE(variant.is<std::nullptr_t>() == false);
+
+    variant.clear();
+    REQUIRE(variant.is<std::nullptr_t>() == true);
+  }
+}

extras/tests/Cpp11/use_long_long_0.cpp

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+#define ARDUINOJSON_USE_LONG_LONG 0
+#include <ArduinoJson.h>
+
+#include <catch.hpp>
+
+TEST_CASE("ARDUINOJSON_USE_LONG_LONG == 0") {
+  DynamicJsonDocument doc(4096);
+
+  doc["A"] = 42;
+  doc["B"] = 84;
+
+  std::string json;
+  serializeJson(doc, json);
+
+  REQUIRE(json == "{\"A\":42,\"B\":84}");
+}

extras/tests/Cpp11/use_long_long_1.cpp

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+#define ARDUINOJSON_USE_LONG_LONG 1
+#include <ArduinoJson.h>
+
+#include <catch.hpp>
+
+TEST_CASE("ARDUINOJSON_USE_LONG_LONG == 1") {
+  DynamicJsonDocument doc(4096);
+  JsonObject root = doc.to<JsonObject>();
+
+  root["A"] = 123456789123456789;
+  root["B"] = 987654321987654321;
+
+  std::string json;
+  serializeJson(doc, json);
+
+  REQUIRE(json == "{\"A\":123456789123456789,\"B\":987654321987654321}");
+}