Test: Add upstream tests

src/os/unix/unix.cpp

@@ -52,11 +52,6 @@
 #endif
 
 #if defined(__APPLE__)
-#	if defined(WITH_SDL)
-		/* the mac implementation needs this file included in the same file as main() */
-#		include <SDL.h>
-#	endif
-
 #	include "../macosx/macos.h"
 #endif
 
@@ -229,40 +224,6 @@ void NORETURN DoOSAbort()
 }
 #endif
 
-#ifdef WITH_COCOA
-void CocoaSetupAutoreleasePool();
-void CocoaReleaseAutoreleasePool();
-#endif
-
-int CDECL main(int argc, char *argv[])
-{
-	/* Make sure our arguments contain only valid UTF-8 characters. */
-	for (int i = 0; i < argc; i++) StrMakeValidInPlace(argv[i]);
-
-#ifdef WITH_COCOA
-	CocoaSetupAutoreleasePool();
-	/* This is passed if we are launched by double-clicking */
-	if (argc >= 2 && strncmp(argv[1], "-psn", 4) == 0) {
-		argv[1] = nullptr;
-		argc = 1;
-	}
-#endif
-	PerThreadSetupInit();
-	CrashLog::InitialiseCrashLog();
-
-	SetRandomSeed(time(nullptr));
-
-	signal(SIGPIPE, SIG_IGN);
-
-	int ret = openttd_main(argc, argv);
-
-#ifdef WITH_COCOA
-	CocoaReleaseAutoreleasePool();
-#endif
-
-	return ret;
-}
-
 #ifndef WITH_COCOA
 std::optional<std::string> GetClipboardContents()
 {