add arduino json lib

#182

lib/ArduinoJson/test/Polyfills/isFloat.cpp

@@ -0,0 +1,76 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#include <ArduinoJson/Polyfills/isFloat.hpp>
+#include <catch.hpp>
+
+using namespace ArduinoJson::Internals;
+
+TEST_CASE("isFloat()") {
+  SECTION("Input is NULL") {
+    REQUIRE(isFloat(NULL) == false);
+  }
+
+  SECTION("NoExponent") {
+    REQUIRE(isFloat("3.14"));
+    REQUIRE(isFloat("-3.14"));
+    REQUIRE(isFloat("+3.14"));
+  }
+
+  SECTION("IntegralPartMissing") {
+    REQUIRE(isFloat(".14"));
+    REQUIRE(isFloat("-.14"));
+    REQUIRE(isFloat("+.14"));
+  }
+
+  SECTION("FractionalPartMissing") {
+    REQUIRE(isFloat("3."));
+    REQUIRE(isFloat("-3.e14"));
+    REQUIRE(isFloat("+3.e-14"));
+  }
+
+  SECTION("NoDot") {
+    REQUIRE(isFloat("3e14"));
+    REQUIRE(isFloat("3e-14"));
+    REQUIRE(isFloat("3e+14"));
+  }
+
+  SECTION("Integer") {
+    REQUIRE(isFloat("14"));
+    REQUIRE(isFloat("-14"));
+    REQUIRE(isFloat("+14"));
+  }
+
+  SECTION("ExponentMissing") {
+    REQUIRE_FALSE(isFloat("3.14e"));
+    REQUIRE_FALSE(isFloat("3.14e-"));
+    REQUIRE_FALSE(isFloat("3.14e+"));
+  }
+
+  SECTION("JustASign") {
+    REQUIRE_FALSE(isFloat("-"));
+    REQUIRE_FALSE(isFloat("+"));
+  }
+
+  SECTION("Empty") {
+    REQUIRE_FALSE(isFloat(""));
+  }
+
+  SECTION("NaN") {
+    REQUIRE(isFloat("NaN"));
+    REQUIRE_FALSE(isFloat("n"));
+    REQUIRE_FALSE(isFloat("N"));
+    REQUIRE_FALSE(isFloat("nan"));
+    REQUIRE_FALSE(isFloat("-NaN"));
+    REQUIRE_FALSE(isFloat("+NaN"));
+  }
+
+  SECTION("Infinity") {
+    REQUIRE(isFloat("Infinity"));
+    REQUIRE(isFloat("+Infinity"));
+    REQUIRE(isFloat("-Infinity"));
+    REQUIRE_FALSE(isFloat("infinity"));
+    REQUIRE_FALSE(isFloat("Inf"));
+  }
+}