X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=tests%2Ftest-strerror.c;h=3ffb12e8f614304038478250f3f0e84cea7318b7;hb=c4c53bb2f7c0a05e9795da46ea3ddc17b2ef0c78;hp=036ce458cdc7992bcdf4440b98322a37fbe055cf;hpb=d5d3e86d326de4aa7d661fde1ebb636f3efbffd5;p=pspp

diff --git a/tests/test-strerror.c b/tests/test-strerror.c
index 036ce458cd..3ffb12e8f6 100644
--- a/tests/test-strerror.c
+++ b/tests/test-strerror.c
@@ -1,5 +1,5 @@
 /* Test of strerror() function.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007-2011 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -19,37 +19,58 @@
 
 #include <config.h>
 
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 
-#define ASSERT(expr) \
-  do									     \
-    {									     \
-      if (!(expr))							     \
-        {								     \
-          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
-          abort ();							     \
-        }								     \
-    }									     \
-  while (0)
+#include "signature.h"
+SIGNATURE_CHECK (strerror, char *, (int));
+
+#include <errno.h>
+
+#include "macros.h"
 
 int
-main (int argc, char **argv)
+main (void)
 {
   char *str;
+
+  errno = 0;
   str = strerror (EACCES);
   ASSERT (str);
   ASSERT (*str);
+  ASSERT (errno == 0);
+
+  errno = 0;
+  str = strerror (ETIMEDOUT);
+  ASSERT (str);
+  ASSERT (*str);
+  ASSERT (errno == 0);
+
+  errno = 0;
+  str = strerror (EOVERFLOW);
+  ASSERT (str);
+  ASSERT (*str);
+  ASSERT (errno == 0);
 
+  /* POSIX requires strerror (0) to succeed.  Reject use of "Unknown
+     error", but allow "Success", "No error", or even Solaris' "Error
+     0" which are distinct patterns from true out-of-range strings.
+     http://austingroupbugs.net/view.php?id=382  */
+  errno = 0;
   str = strerror (0);
   ASSERT (str);
   ASSERT (*str);
+  ASSERT (errno == 0);
+  ASSERT (strstr (str, "nknown") == NULL);
+  ASSERT (strstr (str, "ndefined") == NULL);
 
+  /* POSIX requires strerror to produce a non-NULL result for all
+     inputs; as an extension, we also guarantee a non-empty reseult.
+     Reporting EINVAL is optional.  */
+  errno = 0;
   str = strerror (-3);
   ASSERT (str);
   ASSERT (*str);
+  ASSERT (errno == 0 || errno == EINVAL);
 
   return 0;
 }