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-rw-r--r--src/test/test_util.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/test/test_util.c b/src/test/test_util.c
index 4f9eb73e0..6c72247e9 100644
--- a/src/test/test_util.c
+++ b/src/test/test_util.c
@@ -2169,6 +2169,7 @@ test_util_exit_status(void *ptr)
n = format_helper_exit_status(0xFF, -0x80000000, hex_errno);
test_streq("FF/-80000000\n", hex_errno);
test_eq(n, strlen(hex_errno));
+ test_eq(n, HEX_ERRNO_SIZE);
clear_hex_errno(hex_errno);
n = format_helper_exit_status(0x7F, 0, hex_errno);