perf testsuite probe: Add test for basic perf-probe options

Test basic behavior of perf-probe subcommand. 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_basic.sh

···
+#!/bin/bash
+
+# SPDX-License-Identifier: GPL-2.0
+
+#
+#	test_basic of perf_probe test
+#	Author: Michael Petlan <[e-mail]>
+#	Author: Masami Hiramatsu <[e-mail]>
+#
+#	Description:
+#
+#		This test tests basic functionality of perf probe command.
+#
+
+# include working environment
+. ../common/init.sh
+
+TEST_RESULT=0
+
+if ! check_kprobes_available; then
+	print_overall_skipped
+	exit 0
+fi
+
+
+### help message
+
+if [ "$PARAM_GENERAL_HELP_TEXT_CHECK" = "y" ]; then
+	# test that a help message is shown and looks reasonable
+	$CMD_PERF probe --help > $LOGS_DIR/basic_helpmsg.log 2> $LOGS_DIR/basic_helpmsg.err
+	PERF_EXIT_CODE=$?
+
+	../common/check_all_patterns_found.pl "PERF-PROBE" "NAME" "SYNOPSIS" "DESCRIPTION" "OPTIONS" "PROBE\s+SYNTAX" "PROBE\s+ARGUMENT" "LINE\s+SYNTAX" < $LOGS_DIR/basic_helpmsg.log
+	CHECK_EXIT_CODE=$?
+	../common/check_all_patterns_found.pl "LAZY\s+MATCHING" "FILTER\s+PATTERN" "EXAMPLES" "SEE\s+ALSO" < $LOGS_DIR/basic_helpmsg.log
+	(( CHECK_EXIT_CODE += $? ))
+	../common/check_all_patterns_found.pl "vmlinux" "module=" "source=" "verbose" "quiet" "add=" "del=" "list.*EVENT" "line=" "vars=" "externs" < $LOGS_DIR/basic_helpmsg.log
+	(( CHECK_EXIT_CODE += $? ))
+	../common/check_all_patterns_found.pl "no-inlines" "funcs.*FILTER" "filter=FILTER" "force" "dry-run" "max-probes" "exec=" "demangle-kernel" < $LOGS_DIR/basic_helpmsg.log
+	(( CHECK_EXIT_CODE += $? ))
+	../common/check_no_patterns_found.pl "No manual entry for" < $LOGS_DIR/basic_helpmsg.err
+	(( CHECK_EXIT_CODE += $? ))
+
+	print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "help message"
+	(( TEST_RESULT += $? ))
+else
+	print_testcase_skipped "help message"
+fi
+
+
+### usage message
+
+# without any args perf-probe should print usage
+$CMD_PERF probe 2> $LOGS_DIR/basic_usage.log > /dev/null
+
+../common/check_all_patterns_found.pl "[Uu]sage" "perf probe" "verbose" "quiet" "add" "del" "force" "line" "vars" "externs" "range" < $LOGS_DIR/basic_usage.log
+CHECK_EXIT_CODE=$?
+
+print_results 0 $CHECK_EXIT_CODE "usage message"
+(( TEST_RESULT += $? ))
+
+
+### quiet switch
+
+# '--quiet' should mute all output
+$CMD_PERF probe --quiet --add vfs_read > $LOGS_DIR/basic_quiet01.log 2> $LOGS_DIR/basic_quiet01.err
+PERF_EXIT_CODE=$?
+$CMD_PERF probe --quiet --del vfs_read > $LOGS_DIR/basic_quiet03.log 2> $LOGS_DIR/basic_quiet02.err
+(( PERF_EXIT_CODE += $? ))
+
+test "`cat $LOGS_DIR/basic_quiet*log $LOGS_DIR/basic_quiet*err | wc -l`" -eq 0
+CHECK_EXIT_CODE=$?
+
+print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "quiet switch"
+(( TEST_RESULT += $? ))
+
+
+# print overall results
+print_overall_results "$TEST_RESULT"
+exit $?