perf testsuite probe: Add test for invalid options

Test if various incompatible options are correctly handled-rejected.
It is run as a part of perftool-testsuite_probe test case.

Signed-off-by: Veronika Molnarova <[e-mail]>
Cc: Athira Rajeev <[e-mail]>
Cc: Ian Rogers <[e-mail]>
Cc: Masami Hiramatsu <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Michael Petlan <[e-mail]>
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/tests/shell/base_probe/test_invalid_options.sh

···
+#!/bin/bash
+
+# SPDX-License-Identifier: GPL-2.0
+
+#
+#	test_invalid_options of perf_probe test
+#	Author: Masami Hiramatsu <[e-mail]>
+#	Author: Michael Petlan <[e-mail]>
+#
+#	Description:
+#
+#		This test checks whether the invalid and incompatible options are reported
+#
+
+# include working environment
+. ../common/init.sh
+
+TEST_RESULT=0
+
+if ! check_kprobes_available; then
+	print_overall_skipped
+	exit 0
+fi
+
+
+### missing argument
+
+# some options require an argument
+for opt in '-a' '-d' '-L' '-V'; do
+	! $CMD_PERF probe $opt 2> $LOGS_DIR/invalid_options_missing_argument$opt.err
+	PERF_EXIT_CODE=$?
+
+	../common/check_all_patterns_found.pl "Error: switch .* requires a value" < $LOGS_DIR/invalid_options_missing_argument$opt.err
+	CHECK_EXIT_CODE=$?
+
+	print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "missing argument for $opt"
+	(( TEST_RESULT += $? ))
+done
+
+
+### unnecessary argument
+
+# some options may omit the argument
+for opt in '-F' '-l'; do
+	$CMD_PERF probe -F > /dev/null 2> $LOGS_DIR/invalid_options_unnecessary_argument$opt.err
+	PERF_EXIT_CODE=$?
+
+	test ! -s $LOGS_DIR/invalid_options_unnecessary_argument$opt.err
+	CHECK_EXIT_CODE=$?
+
+	print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "unnecessary argument for $opt"
+	(( TEST_RESULT += $? ))
+done
+
+
+### mutually exclusive options
+
+# some options are mutually exclusive
+test -e $LOGS_DIR/invalid_options_mutually_exclusive.log && rm -f $LOGS_DIR/invalid_options_mutually_exclusive.log
+for opt in '-a xxx -d xxx' '-a xxx -L foo' '-a xxx -V foo' '-a xxx -l' '-a xxx -F' \
+		'-d xxx -L foo' '-d xxx -V foo' '-d xxx -l' '-d xxx -F' \
+		'-L foo -V bar' '-L foo -l' '-L foo -F' '-V foo -l' '-V foo -F' '-l -F'; do
+	! $CMD_PERF probe $opt > /dev/null 2> $LOGS_DIR/aux.log
+	PERF_EXIT_CODE=$?
+
+	../common/check_all_patterns_found.pl "Error: switch .+ cannot be used with switch .+" < $LOGS_DIR/aux.log
+	CHECK_EXIT_CODE=$?
+
+	print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "mutually exclusive options :: $opt"
+	(( TEST_RESULT += $? ))
+
+	# gather the logs
+	cat $LOGS_DIR/aux.log | grep "Error" >> $LOGS_DIR/invalid_options_mutually_exclusive.log
+done
+
+
+# print overall results
+print_overall_results "$TEST_RESULT"
+exit $?