fix: TASSERT return value in test_etcp_stcp.c and test_stcp_link.c

tests/test_etcp_stcp.c

@@ -18,7 +18,7 @@ static int test_failed = 0;
 static struct SC_MYKEYS s_keys, c_keys;
 
 #define TASSERT(cond) do { \
-    if (!(cond)) { DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, "  FAIL: %s", #cond); test_failed = 1; return; } \
+    if (!(cond)) { DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, "  FAIL: %s", #cond); test_failed = 1; return test_failed; } \
 } while(0)
 
 static int g_srv_recv_count = 0;

tests/test_stcp_link.c

@@ -15,7 +15,7 @@ static int test_failed = 0;
 
 #define BASE_PORT 24567
 #define TASSERT(cond) do { \
-    if (!(cond)) { DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, "  FAIL: %s", #cond); test_failed = 1; return; } \
+    if (!(cond)) { DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, "  FAIL: %s", #cond); test_failed = 1; return test_failed; } \
 } while(0)
 
 struct recv_ctx { uint8_t *data; size_t len, cap; int count; };