testsuite: Translate negative return values

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/tests/testsuite.h b/tests/testsuite.h
index 746190cc3968c3903d9fd4c223e88ae2d1e9db42..6cfbc1794c0cb119d7aeb650f41bce34bfc6e401 100644 (file)
--- a/tests/testsuite.h
+++ b/tests/testsuite.h
@@ -138,8 +138,8 @@ ERROR:
        do { \
                int __r = expr; \
                if (__r) { \
-                       LOG_ERROR("Failed assertion: %s (r = %d, errno = %s) at %s:%d %s\n", \
-                               #expr, __r, strerror(errno), __FILE__, __LINE__, __PRETTY_FUNCTION__); \
+                       LOG_ERROR("Failed assertion: %s (r = %d - %s, errno = %s) at %s:%d %s\n", \
+                               #expr, __r, (__r < 0) ? strerror(-__r) : "UNKNOWN", strerror(errno), __FILE__, __LINE__, __PRETTY_FUNCTION__); \
                        goto FAIL; \
                } \
        } while (0)