use esphome optioanl and fake it for tests

components/samsung_ac/protocol.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "esphome/core/optional.h"
 #include "util.h"
 
 namespace esphome
@@ -79,8 +80,8 @@ namespace esphome
         class ProtocolRequest
         {
         public:
-            opt<bool> power;
-            opt<Mode> mode;
+            optional<bool> power;
+            optional<Mode> mode;
         };
 
         class Protocol

components/samsung_ac/util.h

@@ -6,7 +6,6 @@
 #include <bitset>
 #include <optional>
 #include <functional>
-#include <experimental/optional>
 
 namespace esphome
 {
@@ -19,12 +18,5 @@ namespace esphome
         std::string bytes_to_hex(const std::vector<uint8_t> &data);
         std::vector<uint8_t> hex_to_bytes(const std::string &hex);
         void print_bits_8(uint8_t value);
-
-        // esphome optional did not work in tests and std::optional is not available in c++ 14.
-        template <typename T>
-        using opt = std::experimental::optional<T>;
-        using opt_null_t = std::experimental::nullopt_t;
-        constexpr auto nullopt = std::experimental::nullopt;
-
     } // namespace samsung_ac
 } // namespace esphome

test/esphome/core/optional.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <experimental/optional>
+
+// Fakes the esphome optional type with std experimental/optional
+
+namespace esphome
+{
+    template <typename T>
+    using optional = std::experimental::optional<T>;
+    /*        using opt_null_t = std::experimental::nullopt_t;
+    constexpr auto nullopt = std::experimental::nullopt;*/
+}

test/test_stuff.h

@@ -3,6 +3,7 @@
 #include <bitset>
 #include <cassert>
 #include <optional>
+#include <experimental/optional>
 
 #include "../components/samsung_ac/util.h"
 #include "../components/samsung_ac/protocol.h"