Split unit tests into separate files

Author: MichaelElmore1

CSAPI-lib/ConnectedSystemsAPI.h

@@ -32,6 +32,11 @@ namespace ConnectedSystemsAPI {
 			observationsAPI = ObservationsAPI(apiRoot, authHeader);
 		}
 
+		// Overload to accept C-style string literals to avoid list-initialization narrowing issues
+		ConSysAPI(const char* apiRootC, const char* usernameC, const char* passwordC)
+			: ConSysAPI(std::string(apiRootC), std::string(usernameC), std::string(passwordC)) {
+		}
+
 		/// <param name="apiRoot">e.g. "localhost:8181/sensorhub/api"</param>
 		/// <param name="username">Username for Basic authentication</param>
 		/// <param name="password">Password for Basic authentication</param>

CSAPI-lib/TimeUtils.h

@@ -7,7 +7,7 @@
 
 namespace ConnectedSystemsAPI {
 	namespace TimeUtils {
-		std::chrono::system_clock::time_point parseTimeStringUTC(const std::string& timeStr) {
+		inline std::chrono::system_clock::time_point parseTimeStringUTC(const std::string& timeStr) {
 			std::istringstream ss(timeStr);
 			std::tm tm = {};
 			char discard;
@@ -29,7 +29,7 @@ namespace ConnectedSystemsAPI {
 			return tp;
 		}
 
-		static std::string timePointToString(const std::chrono::system_clock::time_point& tp) {
+		inline static std::string timePointToString(const std::chrono::system_clock::time_point& tp) {
 			std::tm gmt{};
 			time_t time = std::chrono::system_clock::to_time_t(tp);
 			gmtime_s(&gmt, &time);