Added some basic tests, minor compilation fix

src/include/object.hpp

@@ -72,8 +72,7 @@ public:
 
 	template<typename T>
 	struct is_backing<T, typename std::enable_if<is_associative_container<T>::value>::type> {
-		static constexpr bool value = std::is_same<typename is_associative_container<T>::key_type, std::string>::value
-			&& std::is_same<typename is_associative_container<T>::value_type, object>::value;
+		static constexpr bool value = std::is_same<typename is_associative_container<T>::key_type, std::string>::value;
 		using type = map_t;
 	};
 

src/test/object.cpp

@@ -148,6 +148,30 @@ TEST(ObjectTest, basic_has_unordered_set) {
 	EXPECT_FALSE(obj.has<std::unordered_set<object>>());
 }
 
+using map_str_str = std::map<std::string, std::string>;
+using map_str_strv = std::map<std::string, std::string_view>;
+using map_str_obj = std::map<std::string, object>;
+
+using unordered_map_str_str = std::unordered_map<std::string, std::string>;
+using unordered_map_str_strv = std::unordered_map<std::string, std::string_view>;
+using unordered_map_str_obj = std::unordered_map<std::string, object>;
+
+TEST(ObjectTest, basic_has_map) {
+	object obj;
+
+	EXPECT_FALSE(obj.has<map_str_str>());
+	EXPECT_FALSE(obj.has<map_str_strv>());
+	EXPECT_FALSE(obj.has<map_str_obj>());
+}
+
+TEST(ObjectTest, basic_has_unordered_map) {
+	object obj;
+
+	EXPECT_FALSE(obj.has<unordered_map_str_str>());
+	EXPECT_FALSE(obj.has<unordered_map_str_strv>());
+	EXPECT_FALSE(obj.has<unordered_map_str_obj>());
+}
+
 /** basic_get tests */
 
 TEST(ObjectTest, basic_get) {