fix: assert if stdout handle is null

src/test/tests/log.cpp

@@ -2,6 +2,7 @@
 
 #include <seallib/log.h>
 #include <iostream>
+#include <cassert>
 
 /*
     win32 console stuff
@@ -18,7 +19,9 @@ void createAndSetupConsole()
 {
     FILE* pstdout = stdout;
     AllocConsole();
+
     freopen_s(&pstdout, "CONOUT$", "w", stdout);
+    assert(pstdout != nullptr);
 
     DWORD conMode = 0;
     GetConsoleMode(pstdout, &conMode);