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firmware/arduino/get-started/libraries/ArduinoJson/extras/tests/Misc/StringAdapters.cpp

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+// ArduinoJson - https://arduinojson.org
+// Copyright Benoit Blanchon 2014-2021
+// MIT License
+
+#include "custom_string.hpp"
+#include "progmem_emulation.hpp"
+#include "weird_strcmp.hpp"
+
+#include <ArduinoJson/Strings/ArduinoStringAdapter.hpp>
+#include <ArduinoJson/Strings/ConstRamStringAdapter.hpp>
+#include <ArduinoJson/Strings/FlashStringAdapter.hpp>
+#include <ArduinoJson/Strings/SizedRamStringAdapter.hpp>
+#include <ArduinoJson/Strings/StdStringAdapter.hpp>
+
+#include <catch.hpp>
+
+using namespace ARDUINOJSON_NAMESPACE;
+
+TEST_CASE("ConstRamStringAdapter") {
+  SECTION("null") {
+    ConstRamStringAdapter adapter(NULL);
+
+    CHECK(adapter.compare("bravo") < 0);
+    CHECK(adapter.compare(NULL) == 0);
+
+    CHECK(adapter.equals(NULL));
+    CHECK_FALSE(adapter.equals("charlie"));
+
+    CHECK(adapter.size() == 0);
+  }
+
+  SECTION("non-null") {
+    ConstRamStringAdapter adapter("bravo");
+
+    CHECK(adapter.compare(NULL) > 0);
+    CHECK(adapter.compare("alpha") > 0);
+    CHECK(adapter.compare("bravo") == 0);
+    CHECK(adapter.compare("charlie") < 0);
+
+    CHECK(adapter.equals("bravo"));
+    CHECK_FALSE(adapter.equals("charlie"));
+
+    CHECK(adapter.size() == 5);
+  }
+}
+
+TEST_CASE("SizedRamStringAdapter") {
+  SECTION("null") {
+    SizedRamStringAdapter adapter(NULL, 10);
+
+    CHECK(adapter.compare("bravo") < 0);
+    CHECK(adapter.compare(NULL) == 0);
+
+    CHECK(adapter.equals(NULL));
+    CHECK_FALSE(adapter.equals("charlie"));
+
+    CHECK(adapter.size() == 10);
+  }
+
+  SECTION("non-null") {
+    SizedRamStringAdapter adapter("bravo", 5);
+
+    CHECK(adapter.compare(NULL) > 0);
+    CHECK(adapter.compare("alpha") > 0);
+    CHECK(adapter.compare("bravo") == 0);
+    CHECK(adapter.compare("charlie") < 0);
+
+    CHECK(adapter.equals("bravo"));
+    CHECK_FALSE(adapter.equals("charlie"));
+
+    CHECK(adapter.size() == 5);
+  }
+}
+
+TEST_CASE("FlashStringAdapter") {
+  SECTION("null") {
+    FlashStringAdapter adapter(NULL);
+
+    CHECK(adapter.compare("bravo") < 0);
+    CHECK(adapter.compare(NULL) == 0);
+
+    CHECK(adapter.equals(NULL));
+    CHECK_FALSE(adapter.equals("charlie"));
+
+    CHECK(adapter.size() == 0);
+  }
+
+  SECTION("non-null") {
+    FlashStringAdapter adapter = adaptString(F("bravo"));
+
+    CHECK(adapter.compare(NULL) > 0);
+    CHECK(adapter.compare("alpha") > 0);
+    CHECK(adapter.compare("bravo") == 0);
+    CHECK(adapter.compare("charlie") < 0);
+
+    CHECK(adapter.equals("bravo"));
+    CHECK_FALSE(adapter.equals("charlie"));
+
+    CHECK(adapter.size() == 5);
+  }
+}
+
+TEST_CASE("std::string") {
+  std::string str("bravo");
+  StdStringAdapter<std::string> adapter = adaptString(str);
+
+  CHECK(adapter.compare(NULL) > 0);
+  CHECK(adapter.compare("alpha") > 0);
+  CHECK(adapter.compare("bravo") == 0);
+  CHECK(adapter.compare("charlie") < 0);
+
+  CHECK(adapter.equals("bravo"));
+  CHECK_FALSE(adapter.equals("charlie"));
+
+  CHECK(adapter.size() == 5);
+}
+
+TEST_CASE("Arduino String") {
+  ::String str("bravo");
+  ArduinoStringAdapter adapter = adaptString(str);
+
+  CHECK(adapter.compare(NULL) > 0);
+  CHECK(adapter.compare("alpha") > 0);
+  CHECK(adapter.compare("bravo") == 0);
+  CHECK(adapter.compare("charlie") < 0);
+
+  CHECK(adapter.equals("bravo"));
+  CHECK_FALSE(adapter.equals("charlie"));
+
+  CHECK(adapter.size() == 5);
+}
+
+TEST_CASE("custom_string") {
+  custom_string str("bravo");
+  StdStringAdapter<custom_string> adapter = adaptString(str);
+
+  CHECK(adapter.compare(NULL) > 0);
+  CHECK(adapter.compare("alpha") > 0);
+  CHECK(adapter.compare("bravo") == 0);
+  CHECK(adapter.compare("charlie") < 0);
+
+  CHECK(adapter.equals("bravo"));
+  CHECK_FALSE(adapter.equals("charlie"));
+
+  CHECK(adapter.size() == 5);
+}
+
+TEST_CASE("IsString<T>") {
+  SECTION("std::string") {
+    CHECK(IsString<std::string>::value == true);
+  }
+
+  SECTION("basic_string<wchar_t>") {
+    CHECK(IsString<std::basic_string<wchar_t> >::value == false);
+  }
+
+  SECTION("custom_string") {
+    CHECK(IsString<custom_string>::value == true);
+  }
+
+  SECTION("const __FlashStringHelper*") {
+    CHECK(IsString<const __FlashStringHelper*>::value == true);
+  }
+
+  SECTION("const char*") {
+    CHECK(IsString<const char*>::value == true);
+  }
+
+  SECTION("const char[]") {
+    CHECK(IsString<const char[8]>::value == true);
+  }
+}