tests: truncate metadata file for regenerate metadata test

[lttng-tools.git] / tests / regression / tools / regen-metadata / test_kernel

diff --git a/tests/regression/tools/regen-metadata/test_kernel b/tests/regression/tools/regen-metadata/test_kernel
index 1849b9cd0b10c9ea66bbbcb5a8ebe92ac03e956a..0f879e6360b3c500720b6f302d264c3974f5b0ca 100755 (executable)
--- a/tests/regression/tools/regen-metadata/test_kernel
+++ b/tests/regression/tools/regen-metadata/test_kernel
@@ -1,76 +1,79 @@
 #!/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)
 
-NUM_TESTS=18
+NUM_TESTS=24
 
 source $TESTDIR/utils/utils.sh
 
-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/$SESSION_NAME"* | grep metadata)
+
+       # Empty the metadata file
+       echo -n > "$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"* | grep 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"
 }
 
 plan_tests $NUM_TESTS