initial commit

libraries/ArduinoJson/extras/tests/MixedConfiguration/enable_infinity_1.cpp

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+#define ARDUINOJSON_ENABLE_INFINITY 1
+#include <ArduinoJson.h>
+
+#include <catch.hpp>
+#include <limits>
+
+namespace my {
+using ArduinoJson::detail::isinf;
+}  // namespace my
+
+TEST_CASE("ARDUINOJSON_ENABLE_INFINITY == 1") {
+  JsonDocument doc;
+
+  SECTION("serializeJson()") {
+    doc.add(std::numeric_limits<double>::infinity());
+    doc.add(-std::numeric_limits<double>::infinity());
+
+    std::string json;
+    serializeJson(doc, json);
+
+    REQUIRE(json == "[Infinity,-Infinity]");
+  }
+
+  SECTION("deserializeJson()") {
+    DeserializationError err =
+        deserializeJson(doc, "[Infinity,-Infinity,+Infinity]");
+    float a = doc[0];
+    float b = doc[1];
+    float c = doc[2];
+
+    REQUIRE(err == DeserializationError::Ok);
+    REQUIRE(my::isinf(a));
+    REQUIRE(a > 0);
+    REQUIRE(my::isinf(b));
+    REQUIRE(b < 0);
+    REQUIRE(my::isinf(c));
+    REQUIRE(c > 0);
+  }
+}