X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=tests%2Fregression%2Ftools%2Fregen-metadata%2Ftest_kernel;h=1b5ce2a0b2239545fd58b2a367baef9141cf4a43;hb=HEAD;hp=fd139aeefbf1b173dd655dad496ea34f9896d425;hpb=eded6438f3b15eccc391525f653e03293a890d32;p=lttng-tools.git

diff --git a/tests/regression/tools/regen-metadata/test_kernel b/tests/regression/tools/regen-metadata/test_kernel
index fd139aeef..1b5ce2a0b 100755
--- a/tests/regression/tools/regen-metadata/test_kernel
+++ b/tests/regression/tools/regen-metadata/test_kernel
@@ -1,101 +1,114 @@
 #!/bin/bash
 #
-# Copyright (C) - 2015 Julien Desfossez <jdesfossez@efficios.com>
+# Copyright (C) 2015 Julien Desfossez <jdesfossez@efficios.com>
 #
-# This library is free software; you can redistribute it and/or modify it under
-# the terms of the GNU Lesser General Public License as published by the Free
-# Software Foundation; version 2.1 of the License.
-#
-# This library is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-# details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with this library; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+# SPDX-License-Identifier: LGPL-2.1-only
+
 TEST_DESC="Streaming - Kernel tracing"
 
 CURDIR=$(dirname $0)/
 TESTDIR=$CURDIR/../../..
 EVENT_NAME="lttng_test_filter_event"
-PID_RELAYD=0
 SESSION_NAME=""
 
-TRACE_PATH=$(mktemp -d)
+TRACE_PATH=$(mktemp -d -t tmp.test_regen_metadata_kernel_trace_path.XXXXXX)
 
-NUM_TESTS=18
+NUM_TESTS=32
 
 source $TESTDIR/utils/utils.sh
 
-# LTTng kernel modules check
-out=`ls /lib/modules/$(uname -r)/extra | grep lttng`
-if [ -z "$out" ]; then
-	BAIL_OUT "LTTng modules not detected."
-fi
-
-function lttng_create_session_uri
-{
-	# Create session with default path
-	$TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME -U net://localhost >/dev/null 2>&1
-
-	ok $? "Create session $SESSION_NAME"
-}
-
 function test_kernel_streaming ()
 {
+	local metadata_path
+
 	diag "Test kernel streaming with metadata regeneration"
-	lttng_create_session_uri
+	create_lttng_session_uri $SESSION_NAME net://localhost
 	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
 	start_lttng_tracing_ok $SESSION_NAME
 	echo -n "100" > /proc/lttng-test-filter-event
+
+	# Baseline
+	stop_lttng_tracing_ok $SESSION_NAME
+	validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
+
+	# Find the metadata file
+	metadata_path=$(find "$TRACE_PATH/$HOSTNAME/$SESSION_NAME"* -name "metadata")
+
+	# Empty the metadata file
+	echo -n > "$metadata_path"
+
+	start_lttng_tracing_ok $SESSION_NAME
 	regenerate_metadata_ok $SESSION_NAME
 	stop_lttng_tracing_ok $SESSION_NAME
 	# Validate test
 	validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
-	if [ $? -eq 0 ]; then
-		# Only delete if successful
-		rm -rf $TRACE_PATH
-	else
-		break
-	fi
 	destroy_lttng_session_ok $SESSION_NAME
+	rm -rf "$TRACE_PATH"
 }
 
 function test_kernel_local ()
 {
+	local metadata_path
+
 	diag "Test kernel local with metadata regeneration"
 	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
 	start_lttng_tracing_ok $SESSION_NAME
+
+	# Baseline
 	echo -n "100" > /proc/lttng-test-filter-event
+	stop_lttng_tracing_ok $SESSION_NAME
+	validate_trace $EVENT_NAME "$TRACE_PATH"
+
+	# Find the metadata file
+	metadata_path=$(find "$TRACE_PATH"* -name "metadata")
+
+	# Empty the metadata file
+	echo -n > "$metadata_path"
+
+	start_lttng_tracing_ok $SESSION_NAME
 	regenerate_metadata_ok $SESSION_NAME
 	stop_lttng_tracing_ok $SESSION_NAME
+
 	validate_trace $EVENT_NAME $TRACE_PATH
-	if [ $? -eq 0 ]; then
-		# Only delete if successful
-		rm -rf $TRACE_PATH
-	fi
 	destroy_lttng_session_ok $SESSION_NAME
+
+	rm -rf "$TRACE_PATH"
+}
+
+function test_kernel_local_snapshot_after_regenerate_metadata ()
+{
+	diag "Test kernel local snapshot after regenerate metadata"
+	create_lttng_session_ok $SESSION_NAME "$TRACE_PATH" --snapshot
+	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
+	start_lttng_tracing_ok $SESSION_NAME
+
+	echo -n "100" > /proc/lttng-test-filter-event
+
+	regenerate_metadata_ok $SESSION_NAME
+	lttng_snapshot_record $SESSION_NAME "$TRACE_PATH"
+	stop_lttng_tracing_ok $SESSION_NAME
+
+	validate_trace $EVENT_NAME "$TRACE_PATH"
+	destroy_lttng_session_ok $SESSION_NAME
+
+	rm -rf "$TRACE_PATH"
 }
 
 plan_tests $NUM_TESTS
 
 print_test_banner "$TEST_DESC"
 
-if [ "$(id -u)" == "0" ]; then
-	isroot=1
-else
-	isroot=0
-fi
-
-skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
+check_skip_kernel_test "$NUM_TESTS" "Skipping all tests." ||
 {
+	validate_lttng_modules_present
+
 	start_lttng_relayd "-o $TRACE_PATH"
 	start_lttng_sessiond
 	modprobe lttng-test
 
-	tests=( test_kernel_streaming test_kernel_local )
+	tests=( test_kernel_streaming test_kernel_local
+		test_kernel_local_snapshot_after_regenerate_metadata )
 
 	for fct_test in ${tests[@]};
 	do
@@ -103,7 +116,7 @@ skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_
 		${fct_test}
 	done
 
-	rmmod lttng-test
+	modprobe --remove lttng-test
 	stop_lttng_sessiond
 	stop_lttng_relayd
 }