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#!/bin/sh
# This test is expected to fail at least with diffutils-3.6.
# Demonstrate how diff can produce suboptimal output.
# With these two files, diff -u prints output including this:
# -2
# +L: 361
# +L: 361
# +2
# The trouble is that "2" line that is both added and removed.
# This smaller patch could induce the same change:
# +L: 361
# +L: 361
. "${srcdir=.}/init.sh"; path_prepend_ ../src
require_perl_
fail=0
diff -u \
"$abs_top_srcdir/tests/large-subopt.in1" \
"$abs_top_srcdir/tests/large-subopt.in2" \
| $PERL -n0 -e \
'/\n-2\n(\+L: 361\n){2}\+2\n/ and do {$e=1; last}; END{exit !$e}' \
&& fail=1
Exit $fail
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