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

1 files changed, 3 insertions, 1 deletions

diff --git a/tests/misc/unexpand b/tests/misc/unexpand
index 3e3a3d17c..554d18cf5 100755
--- a/tests/misc/unexpand
+++ b/tests/misc/unexpand
@@ -18,6 +18,8 @@
 
 use strict;
 
+my $limits = getlimits ();
+
 (my $program_name = $0) =~ s|.*/||;
 
 # Turn off localization of executable's output.
@@ -76,7 +78,7 @@ my @Tests =
 
      # It is debatable whether this test should require an environment
      # setting of e.g., _POSIX2_VERSION=1.
-     ['obs-ovflo', '-18446744073709551617', {IN=>''}, {OUT=>''},
+     ['obs-ovflo', "-$limits->{'UINTMAX_OFLOW'}", {IN=>''}, {OUT=>''},
       {EXIT => 1}, {ERR => "$prog: tab stop value is too large\n"}],
     );