busybox/testsuite/head.tests
Thomas De Schampheleire e0f617699f head: add test case for negative -n invocation
Commit 2da9724b56 broke 'head -n -1' and was
later reverted with 0d598ab9f0.

This commit adds a test case to avoid future breakage.

Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-09-22 19:40:35 +02:00

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#!/bin/sh
# Copyright 2018 Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
# Licensed under GPLv2 or later, see file LICENSE in this source tree.
. ./testing.sh
# testing "test name" "command" "expected result" "file input" "stdin"
cat <<EOF > head.input
line 1
line 2
line 3
line 4
line 5
line 6
line 7
line 8
line 9
line 10
line 11
line 12
EOF
testing "head -n <negative number>" \
"head -n -9 head.input" \
"line 1\nline 2\nline 3\n" \
"" ""
rm head.input
exit $FAILCOUNT