From 99be9078383e7fc95bf84b42ea6a0e50afbe6ff4 Mon Sep 17 00:00:00 2001
From: Pádraig Brady <P@draigBrady.com>
Date: Fri, 12 Dec 2008 10:25:34 +0000
Subject: tests: refactor to use the new getlimits utility

* tests/Coreutils.pm: Add function to make limits available
* tests/test-lib.sh: ditto
* tests/misc/join: Check for both SIZE_OFLOW and UINTMAX_OFLOW
rather than using arbitrary 2^128
* tests/misc/sort: ditto
* tests/misc/uniq: ditto
* tests/misc/printf: Check for both INT_OFLOW and INT_UFLOW
rather than using arbitrary -2^31
* tests/misc/seq-long-double: Check for INTMAX_OFLOW
rather than using arbitrary 2^63
* tests/misc/split-fail: Check --lines --bytes and --line-bytes
options limits on all platforms. Note getlimits obviates the
need to use expr to check if 32 bit integers are supported,
which I think was invalid anyway as expr now supports bignum?
* tests/misc/test: Check for UINTMAX_OFLOW rather than
using arbitrary 2^64 and 2^128. Check for INTMAX_UFLOW
rather than using arbitrary -2^64
* tests/misc/timeout-parameters: Check for UINT_OFLOW
rather than using arbitrary 2^32
* tests/misc/truncate-overflow: Don't depend on truncate
to determine if we're on a 32 or 64 bit platform and
instead use the various OFF_T limits
* tests/misc/sort-merge: Check for UINTMAX_OFLOW
rather than using arbitrary 2^64+1
* tests/misc/unexpand: ditto
---
 tests/misc/truncate-overflow | 27 ++++++++-------------------
 1 file changed, 8 insertions(+), 19 deletions(-)

(limited to 'tests/misc/truncate-overflow')

diff --git a/tests/misc/truncate-overflow b/tests/misc/truncate-overflow
index b903244e6..3f486c58d 100755
--- a/tests/misc/truncate-overflow
+++ b/tests/misc/truncate-overflow
@@ -22,6 +22,7 @@ if test "$VERBOSE" = yes; then
 fi
 
 . $srcdir/test-lib.sh
+getlimits_
 
 fail=0
 
@@ -30,26 +31,14 @@ truncate -s-1 create-zero-len-file || fail=1
 
 echo > non-empty-file
 
-truncate -s2147483648 -c no-such-file && _FILE_OFFSET_BITS=64
+# signed overflow
+truncate -s$OFF_T_OFLOW file && fail=1
 
-if [ $_FILE_OFFSET_BITS -eq 64 ]; then
-    # signed overflow
-    truncate -s9223372036854775808 file && fail=1
+# += signed overflow
+truncate -s+$OFF_T_MAX non-empty-file && fail=1
 
-    # *= signed overflow
-    truncate --io-blocks --size="1E" file && fail=1
-
-    # += signed overflow
-    truncate -s+9223372036854775807 non-empty-file && fail=1
-else
-    # signed overflow
-    truncate -s2147483648 file && fail=1
-
-    # *= signed overflow
-    truncate --io-blocks --size="1G" file && fail=1
-
-    # += signed overflow
-    truncate -s+2147483647 non-empty-file && fail=1
-fi
+# *= signed overflow
+IO_BLOCK_OFLOW=$(expr $OFF_T_MAX / $(stat -f -c%s .) + 1)
+truncate --io-blocks --size=$IO_BLOCK_OFLOW file && fail=1
 
 Exit $fail
-- 
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