Fix: create a fast and a long UST snapshot test
authorDavid Goulet <dgoulet@efficios.com>
Mon, 25 Nov 2013 19:55:57 +0000 (14:55 -0500)
committerDavid Goulet <dgoulet@efficios.com>
Mon, 25 Nov 2013 19:55:57 +0000 (14:55 -0500)
The fast one does 10 snapshots where the long one keeps the 1000
original value. The make check only executes the fast one.

Signed-off-by: David Goulet <dgoulet@efficios.com>
tests/fast_regression
tests/long_regression
tests/regression/tools/snapshots/Makefile.am
tests/regression/tools/snapshots/test_ust [deleted file]
tests/regression/tools/snapshots/test_ust_fast [new file with mode: 0755]
tests/regression/tools/snapshots/test_ust_long [new file with mode: 0755]
tests/regression/tools/snapshots/ust_test [new file with mode: 0755]

index 64b089225fe1971abbd269719b119dbe865947c9..54707229d16dca321918b650e1991b8384fd0983 100644 (file)
@@ -8,7 +8,7 @@ regression/tools/live/test_lttng_ust
 regression/tools/tracefile-limits/test_tracefile_count
 regression/tools/tracefile-limits/test_tracefile_size
 regression/tools/exclusion/test_exclusion
-regression/tools/snapshots/test_ust
+regression/tools/snapshots/test_ust_fast
 regression/tools/snapshots/test_ust_streaming
 regression/ust/before-after/test_before_after
 regression/ust/buffers-pid/test_buffers_pid
index 2c6afcdc11a2324242770dd7119728130f6e3ff6..ab4339ddfa8e2bc5e4733efbaec3b181885cc00e 100644 (file)
@@ -5,6 +5,7 @@ regression/tools/health/test_thread_exit
 regression/tools/health/test_thread_stall
 regression/tools/health/test_tp_fail
 regression/tools/streaming/test_ust
+regression/tools/snapshots/test_ust_long
 regression/tools/tracefile-limits/test_tracefile_count
 regression/tools/tracefile-limits/test_tracefile_size
 regression/ust/before-after/test_before_after
index 66e9ddd318039c50be580a7bc9f61e0e1defe0b8..39cda782165cb51f2eae18cb0830c7cf2f1e676d 100644 (file)
@@ -1,5 +1,5 @@
-noinst_SCRIPTS = test_kernel test_kernel_streaming test_ust test_ust_streaming
-EXTRA_DIST = test_kernel test_kernel_streaming test_ust test_ust_streaming
+noinst_SCRIPTS = test_kernel test_kernel_streaming test_ust_fast test_ust_long ust_test test_ust_streaming
+EXTRA_DIST = test_kernel test_kernel_streaming test_ust_fast test_ust_long ust_test test_ust_streaming
 
 all-local:
        @if [ x"$(srcdir)" != x"$(builddir)" ]; then \
diff --git a/tests/regression/tools/snapshots/test_ust b/tests/regression/tools/snapshots/test_ust
deleted file mode 100755 (executable)
index bdc6f74..0000000
+++ /dev/null
@@ -1,370 +0,0 @@
-#!/bin/bash
-#
-# Copyright (C) - 2013 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
-TEST_DESC="Snapshots - UST tracing"
-
-CURDIR=$(dirname $0)/
-TESTDIR=$CURDIR/../../..
-EVENT_NAME="tp:tptest"
-PID_RELAYD=0
-SESSION_NAME=""
-CHANNEL_NAME="snapchan"
-TESTAPP_PATH="$TESTDIR/utils/testapp"
-TESTAPP_NAME="gen-ust-events"
-TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
-NR_ITER=2000000
-NR_USEC_WAIT=100
-
-TRACE_PATH=$(mktemp -d)
-
-NUM_TESTS=2076
-
-source $TESTDIR/utils/utils.sh
-
-if [ ! -x "$TESTAPP_BIN" ]; then
-       BAIL_OUT "No UST events binary detected."
-fi
-
-function start_test_app()
-{
-       local tmp_file="/tmp/lttng_test_ust.42.file"
-
-       # Start application with a temporary file.
-       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT $tmp_file &
-       ok $? "Start application to trace"
-
-       # Wait for the application file to appear indicating that at least one
-       # tracepoint has been fired.
-       while [ ! -f "$tmp_file" ]; do
-               sleep 0.5
-       done
-       diag "Removing test app temporary file $tmp_file"
-       rm -f $tmp_file
-}
-
-function kill_test_app()
-{
-       diag "Killing $TESTAPP_NAME"
-       PID_APP=`pidof $TESTAPP_NAME`
-       kill $PID_APP >/dev/null 2>&1
-}
-
-function snapshot_add_output ()
-{
-       local sess_name=$1
-       local trace_path=$2
-       local name=$3
-       local max_size=$4
-       local extra_opt=""
-
-       if [ ! -z $name ]; then
-               extra_opt+=" -n $name "
-       fi
-
-       if [ ! -z $max_size ]; then
-               extra_opt+=" -m $max_size "
-       fi
-
-       $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output \
-               -s $sess_name $extra_opt $trace_path > /dev/null 2>&1
-
-       ok $? "Added snapshot output $trace_path ($extra_opt)"
-}
-
-function snapshot_del_output ()
-{
-       local sess_name=$1
-       local name=$2
-
-       $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot del-output \
-               -s $sess_name $name > /dev/null 2>&1
-
-       ok $? "Deleted snapshot output named $name"
-}
-
-function enable_mmap_overwrite_subbuf_ust_channel ()
-{
-       local sess_name=$1
-       local chan_name=$2
-       local subbuf_size=$3
-
-       $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
-               $chan_name -u --output mmap --overwrite \
-               --subbuf-size $subbuf_size > /dev/null 2>&1
-
-       ok $? "Enable channel $channel_name for session $sess_name with subbuf size $subbuf_size"
-}
-
-
-function test_ust_list_output ()
-{
-       output_names=("randomname" "somesnapshot")
-
-       diag "Test UST snapshot output listing"
-       create_lttng_session_no_output $SESSION_NAME
-       enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-
-       start_lttng_tracing $SESSION_NAME
-
-       snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[0]}
-
-       $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
-               -s $SESSION_NAME 2>&1 | grep ${output_names[0]} > /dev/null
-       ok $? "Snapshot named ${output_names[0]} present in list-output listing"
-
-       snapshot_del_output $SESSION_NAME ${output_names[0]}
-
-       snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[1]}
-
-       $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
-               -s $SESSION_NAME 2>&1 | grep ${output_names[1]} > /dev/null
-
-       ok $? "Snapshot named ${output_names[1]} present in list-output listing"
-
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
-}
-
-function test_ust_local_snapshot ()
-{
-       diag "Test local UST snapshots"
-       create_lttng_session_no_output $SESSION_NAME
-       enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
-
-       # Returns once the application has at least fired ONE tracepoint.
-       start_test_app
-
-       lttng_snapshot_record $SESSION_NAME
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
-
-       # Validate test
-       validate_trace $EVENT_NAME $TRACE_PATH/
-       if [ $? -eq 0 ]; then
-               # Only delete if successful
-               rm -rf $TRACE_PATH
-       else
-               break
-       fi
-
-       kill_test_app
-}
-
-function test_ust_local_snapshot_max_size ()
-{
-       subbuf_size=8192
-       num_cpus=`nproc`
-
-       # The minimum size limit is min(subbuf_size) * nb_streams
-       max_size=$(($subbuf_size*$num_cpus))
-
-       diag "Test local UST snapshots with max size $max_size"
-       create_lttng_session_no_output $SESSION_NAME
-
-       enable_mmap_overwrite_subbuf_ust_channel $SESSION_NAME $CHANNEL_NAME $subbuf_size
-
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-
-       snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" "" $max_size
-
-       # Returns once the application has at least fired ONE tracepoint.
-       start_test_app
-
-       lttng_snapshot_record $SESSION_NAME
-
-       # Check file size
-       sum_size_tracefiles=$(find $TRACE_PATH -name "${CHANNEL_NAME}_*" \
-               -exec stat -c '%s' {} \; | awk '{s = s + $1}END{print s}')
-
-       if [ "$sum_size_tracefiles" -gt "$max_size" ]; then
-               fail "Tracefiles size sum validation"
-               diag "Tracefiles size sum: $sum_size_tracefiles Expected max: $max_size"
-       fi
-
-       pass "Tracefiles size sum validation"
-
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
-
-       # Validate test
-       validate_trace $EVENT_NAME $TRACE_PATH/
-
-       if [ $? -eq 0 ]; then
-               # Only delete if successful
-               rm -rf $TRACE_PATH
-       fi
-
-       kill_test_app
-}
-
-function test_ust_local_snapshot_large_metadata ()
-{
-       LM_EVENT="tp:tptest1,tp:tptest2,tp:tptest3,tp:tptest4,tp:tptest5"
-       LM_PATH="$TESTDIR/utils/testapp"
-       LM_NAME="gen-ust-nevents"
-       LM_BIN="$LM_PATH/$LM_NAME/$LM_NAME"
-
-       diag "Test local UST snapshots with > 4kB metadata"
-       create_lttng_session_no_output $SESSION_NAME
-       enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $LM_EVENT $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
-       $LM_BIN 1 1
-       ok $? "Start application to trace"
-       lttng_snapshot_record $SESSION_NAME
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
-
-       # Validate test
-       validate_trace $LM_EVENT $TRACE_PATH/
-       if [ $? -eq 0 ]; then
-               # Only delete if successful
-               rm -rf $TRACE_PATH
-       else
-               break
-       fi
-}
-
-function enable_channel_per_uid_mmap_overwrite()
-{
-       sess_name=$1
-       channel_name=$2
-
-       $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --output mmap --overwrite >/dev/null 2>&1
-       ok $? "Enable channel $channel_name per UID for session $sess_name"
-}
-
-function test_ust_per_uid_local_snapshot ()
-{
-       diag "Test local UST snapshots"
-       create_lttng_session_no_output $SESSION_NAME
-       enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
-
-       # Returns once the application has at least fired ONE tracepoint.
-       start_test_app
-
-       lttng_snapshot_record $SESSION_NAME
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
-
-       # Validate test
-       validate_trace $EVENT_NAME $TRACE_PATH/
-       if [ $? -eq 0 ]; then
-               # Only delete if successful
-               rm -rf $TRACE_PATH
-       else
-               break
-       fi
-
-       kill_test_app
-}
-
-function test_ust_per_uid_local_snapshot_post_mortem ()
-{
-       diag "Test local UST snapshots post-mortem"
-       create_lttng_session_no_output $SESSION_NAME
-       enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
-
-       # Returns once the application has at least fired ONE tracepoint.
-       start_test_app
-       kill_test_app
-
-       lttng_snapshot_record $SESSION_NAME
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
-
-       # Validate test
-       validate_trace $EVENT_NAME $TRACE_PATH/
-       if [ $? -eq 0 ]; then
-               # Only delete if successful
-               rm -rf $TRACE_PATH
-       else
-               break
-       fi
-}
-
-function test_ust_1000_local_snapshots ()
-{
-       NB_SNAP=1000
-
-       diag "Test $NB_SNAP local UST snapshots"
-       create_lttng_session_no_output $SESSION_NAME
-       enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
-
-       # Returns once the application has at least fired ONE tracepoint.
-       start_test_app
-
-       for i in $(seq 1 $NB_SNAP); do
-               diag "Snapshot $i/$NB_SNAP"
-               rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
-               lttng_snapshot_record $SESSION_NAME
-               # Validate test
-               validate_trace $EVENT_NAME $TRACE_PATH/
-               if [ $? -eq 0 ]; then
-                       # Only delete if successful
-                       rm -rf $TRACE_PATH
-               else
-                       break
-               fi
-       done
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
-
-       kill_test_app
-}
-
-plan_tests $NUM_TESTS
-
-print_test_banner "$TEST_DESC"
-
-if [ "$(id -u)" == "0" ]; then
-       isroot=1
-else
-       isroot=0
-fi
-
-start_lttng_sessiond
-
-tests=( test_ust_list_output
-       test_ust_local_snapshot
-       test_ust_local_snapshot_max_size
-       test_ust_per_uid_local_snapshot
-       test_ust_per_uid_local_snapshot_post_mortem
-       test_ust_local_snapshot_large_metadata
-       test_ust_1000_local_snapshots )
-
-for fct_test in ${tests[@]};
-do
-       SESSION_NAME=$(randstring 16 0)
-       ${fct_test}
-done
-
-stop_lttng_sessiond
diff --git a/tests/regression/tools/snapshots/test_ust_fast b/tests/regression/tools/snapshots/test_ust_fast
new file mode 100755 (executable)
index 0000000..edb435c
--- /dev/null
@@ -0,0 +1,29 @@
+#!/bin/bash
+#
+# Copyright (C) - 2013 Julien Desfossez <jdesfossez@efficios.com>
+#
+# This library is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation; version 2.1 of the License.
+#
+# This library is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+
+CURDIR=$(dirname $0)/
+NR_SNAPSHOT=10
+TESTDIR=$CURDIR/../../..
+TEST_BIN="ust_test"
+
+source $TESTDIR/utils/utils.sh
+
+if [ ! -x "$CURDIR/$TEST_BIN" ]; then
+       BAIL_OUT "No UST test found: $TEST_BIN"
+fi
+
+./$CURDIR/$TEST_BIN $NR_SNAPSHOT
diff --git a/tests/regression/tools/snapshots/test_ust_long b/tests/regression/tools/snapshots/test_ust_long
new file mode 100755 (executable)
index 0000000..9e1a0c2
--- /dev/null
@@ -0,0 +1,29 @@
+#!/bin/bash
+#
+# Copyright (C) - 2013 Julien Desfossez <jdesfossez@efficios.com>
+#
+# This library is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation; version 2.1 of the License.
+#
+# This library is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+
+CURDIR=$(dirname $0)/
+NR_SNAPSHOT=1000
+TESTDIR=$CURDIR/../../..
+TEST_BIN="ust_test"
+
+source $TESTDIR/utils/utils.sh
+
+if [ ! -x "$CURDIR/$TEST_BIN" ]; then
+       BAIL_OUT "No UST test found: $TEST_BIN"
+fi
+
+./$CURDIR/$TEST_BIN $NR_SNAPSHOT
diff --git a/tests/regression/tools/snapshots/ust_test b/tests/regression/tools/snapshots/ust_test
new file mode 100755 (executable)
index 0000000..e727aa6
--- /dev/null
@@ -0,0 +1,370 @@
+#!/bin/bash
+#
+# Copyright (C) - 2013 Julien Desfossez <jdesfossez@efficios.com>
+#
+# This library is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation; version 2.1 of the License.
+#
+# This library is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+TEST_DESC="Snapshots - UST tracing"
+
+CURDIR=$(dirname $0)/
+TESTDIR=$CURDIR/../../..
+EVENT_NAME="tp:tptest"
+PID_RELAYD=0
+SESSION_NAME=""
+CHANNEL_NAME="snapchan"
+TESTAPP_PATH="$TESTDIR/utils/testapp"
+TESTAPP_NAME="gen-ust-events"
+TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
+NR_ITER=2000000
+NR_USEC_WAIT=100
+
+NUM_TESTS=76
+
+TRACE_PATH=$(mktemp -d)
+
+source $TESTDIR/utils/utils.sh
+
+if [ ! -x "$TESTAPP_BIN" ]; then
+       BAIL_OUT "No UST events binary detected."
+fi
+
+# Need the number of snapshot to do.
+if [ -z $1 ]; then
+       BAIL_OUT "A number of snapshot is needed."
+fi
+NR_SNAPSHOT=$1
+
+NUM_TESTS=$(($NUM_TESTS + ($NR_SNAPSHOT * 2)))
+
+function start_test_app()
+{
+       local tmp_file="/tmp/lttng_test_ust.42.file"
+
+       # Start application with a temporary file.
+       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT $tmp_file &
+       ok $? "Start application to trace"
+
+       # Wait for the application file to appear indicating that at least one
+       # tracepoint has been fired.
+       while [ ! -f "$tmp_file" ]; do
+               sleep 0.5
+       done
+       diag "Removing test app temporary file $tmp_file"
+       rm -f $tmp_file
+}
+
+function kill_test_app()
+{
+       diag "Killing $TESTAPP_NAME"
+       PID_APP=`pidof $TESTAPP_NAME`
+       kill $PID_APP >/dev/null 2>&1
+}
+
+function snapshot_add_output ()
+{
+       local sess_name=$1
+       local trace_path=$2
+       local name=$3
+       local max_size=$4
+       local extra_opt=""
+
+       if [ ! -z $name ]; then
+               extra_opt+=" -n $name "
+       fi
+
+       if [ ! -z $max_size ]; then
+               extra_opt+=" -m $max_size "
+       fi
+
+       $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output \
+               -s $sess_name $extra_opt $trace_path > /dev/null 2>&1
+
+       ok $? "Added snapshot output $trace_path ($extra_opt)"
+}
+
+function snapshot_del_output ()
+{
+       local sess_name=$1
+       local name=$2
+
+       $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot del-output \
+               -s $sess_name $name > /dev/null 2>&1
+
+       ok $? "Deleted snapshot output named $name"
+}
+
+function enable_mmap_overwrite_subbuf_ust_channel ()
+{
+       local sess_name=$1
+       local chan_name=$2
+       local subbuf_size=$3
+
+       $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
+               $chan_name -u --output mmap --overwrite \
+               --subbuf-size $subbuf_size > /dev/null 2>&1
+
+       ok $? "Enable channel $channel_name for session $sess_name with subbuf size $subbuf_size"
+}
+
+
+function test_ust_list_output ()
+{
+       output_names=("randomname" "somesnapshot")
+
+       diag "Test UST snapshot output listing"
+       create_lttng_session_no_output $SESSION_NAME
+       enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
+       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+
+       start_lttng_tracing $SESSION_NAME
+
+       snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[0]}
+
+       $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
+               -s $SESSION_NAME 2>&1 | grep ${output_names[0]} > /dev/null
+       ok $? "Snapshot named ${output_names[0]} present in list-output listing"
+
+       snapshot_del_output $SESSION_NAME ${output_names[0]}
+
+       snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[1]}
+
+       $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
+               -s $SESSION_NAME 2>&1 | grep ${output_names[1]} > /dev/null
+
+       ok $? "Snapshot named ${output_names[1]} present in list-output listing"
+
+       stop_lttng_tracing $SESSION_NAME
+       destroy_lttng_session $SESSION_NAME
+}
+
+function test_ust_local_snapshot ()
+{
+       diag "Test local UST snapshots"
+       create_lttng_session_no_output $SESSION_NAME
+       enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
+       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing $SESSION_NAME
+       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+
+       # Returns once the application has at least fired ONE tracepoint.
+       start_test_app
+
+       lttng_snapshot_record $SESSION_NAME
+       stop_lttng_tracing $SESSION_NAME
+       destroy_lttng_session $SESSION_NAME
+
+       # Validate test
+       validate_trace $EVENT_NAME $TRACE_PATH/
+       if [ $? -eq 0 ]; then
+               # Only delete if successful
+               rm -rf $TRACE_PATH
+       else
+               break
+       fi
+
+       kill_test_app
+}
+
+function test_ust_local_snapshot_max_size ()
+{
+       subbuf_size=8192
+       num_cpus=`nproc`
+
+       # The minimum size limit is min(subbuf_size) * nb_streams
+       max_size=$(($subbuf_size*$num_cpus))
+
+       diag "Test local UST snapshots with max size $max_size"
+       create_lttng_session_no_output $SESSION_NAME
+
+       enable_mmap_overwrite_subbuf_ust_channel $SESSION_NAME $CHANNEL_NAME $subbuf_size
+
+       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing $SESSION_NAME
+
+       snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" "" $max_size
+
+       # Returns once the application has at least fired ONE tracepoint.
+       start_test_app
+
+       lttng_snapshot_record $SESSION_NAME
+
+       # Check file size
+       sum_size_tracefiles=$(find $TRACE_PATH -name "${CHANNEL_NAME}_*" \
+               -exec stat -c '%s' {} \; | awk '{s = s + $1}END{print s}')
+
+       if [ "$sum_size_tracefiles" -gt "$max_size" ]; then
+               fail "Tracefiles size sum validation"
+               diag "Tracefiles size sum: $sum_size_tracefiles Expected max: $max_size"
+       fi
+
+       pass "Tracefiles size sum validation"
+
+       stop_lttng_tracing $SESSION_NAME
+       destroy_lttng_session $SESSION_NAME
+
+       # Validate test
+       validate_trace $EVENT_NAME $TRACE_PATH/
+
+       if [ $? -eq 0 ]; then
+               # Only delete if successful
+               rm -rf $TRACE_PATH
+       fi
+
+       kill_test_app
+}
+
+function test_ust_local_snapshot_large_metadata ()
+{
+       LM_EVENT="tp:tptest1,tp:tptest2,tp:tptest3,tp:tptest4,tp:tptest5"
+       LM_PATH="$TESTDIR/utils/testapp"
+       LM_NAME="gen-ust-nevents"
+       LM_BIN="$LM_PATH/$LM_NAME/$LM_NAME"
+
+       diag "Test local UST snapshots with > 4kB metadata"
+       create_lttng_session_no_output $SESSION_NAME
+       enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
+       enable_ust_lttng_event $SESSION_NAME $LM_EVENT $CHANNEL_NAME
+       start_lttng_tracing $SESSION_NAME
+       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+       $LM_BIN 1 1
+       ok $? "Start application to trace"
+       lttng_snapshot_record $SESSION_NAME
+       stop_lttng_tracing $SESSION_NAME
+       destroy_lttng_session $SESSION_NAME
+
+       # Validate test
+       validate_trace $LM_EVENT $TRACE_PATH/
+       if [ $? -eq 0 ]; then
+               # Only delete if successful
+               rm -rf $TRACE_PATH
+       else
+               break
+       fi
+}
+
+function enable_channel_per_uid_mmap_overwrite()
+{
+       sess_name=$1
+       channel_name=$2
+
+       $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --output mmap --overwrite >/dev/null 2>&1
+       ok $? "Enable channel $channel_name per UID for session $sess_name"
+}
+
+function test_ust_per_uid_local_snapshot ()
+{
+       diag "Test local UST snapshots"
+       create_lttng_session_no_output $SESSION_NAME
+       enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
+       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing $SESSION_NAME
+       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+
+       # Returns once the application has at least fired ONE tracepoint.
+       start_test_app
+
+       lttng_snapshot_record $SESSION_NAME
+       stop_lttng_tracing $SESSION_NAME
+       destroy_lttng_session $SESSION_NAME
+
+       # Validate test
+       validate_trace $EVENT_NAME $TRACE_PATH/
+       if [ $? -eq 0 ]; then
+               # Only delete if successful
+               rm -rf $TRACE_PATH
+       else
+               break
+       fi
+
+       kill_test_app
+}
+
+function test_ust_per_uid_local_snapshot_post_mortem ()
+{
+       diag "Test local UST snapshots post-mortem"
+       create_lttng_session_no_output $SESSION_NAME
+       enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
+       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing $SESSION_NAME
+       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+
+       # Returns once the application has at least fired ONE tracepoint.
+       start_test_app
+       kill_test_app
+
+       lttng_snapshot_record $SESSION_NAME
+       stop_lttng_tracing $SESSION_NAME
+       destroy_lttng_session $SESSION_NAME
+
+       # Validate test
+       validate_trace $EVENT_NAME $TRACE_PATH/
+       if [ $? -eq 0 ]; then
+               # Only delete if successful
+               rm -rf $TRACE_PATH
+       else
+               break
+       fi
+}
+
+function test_ust_local_snapshots ()
+{
+       diag "Test $NR_SNAPSHOT local UST snapshots"
+       create_lttng_session_no_output $SESSION_NAME
+       enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
+       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing $SESSION_NAME
+       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+
+       # Returns once the application has at least fired ONE tracepoint.
+       start_test_app
+
+       for i in $(seq 1 $NR_SNAPSHOT); do
+               diag "Snapshot $i/$NR_SNAPSHOT"
+               rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
+               lttng_snapshot_record $SESSION_NAME
+               # Validate test
+               validate_trace $EVENT_NAME $TRACE_PATH/
+               if [ $? -eq 0 ]; then
+                       # Only delete if successful
+                       rm -rf $TRACE_PATH
+               else
+                       break
+               fi
+       done
+       stop_lttng_tracing $SESSION_NAME
+       destroy_lttng_session $SESSION_NAME
+
+       kill_test_app
+}
+
+plan_tests $NUM_TESTS
+
+print_test_banner "$TEST_DESC"
+
+start_lttng_sessiond
+
+tests=( test_ust_list_output
+       test_ust_local_snapshot
+       test_ust_local_snapshot_max_size
+       test_ust_per_uid_local_snapshot
+       test_ust_per_uid_local_snapshot_post_mortem
+       test_ust_local_snapshot_large_metadata
+       test_ust_local_snapshots)
+
+for fct_test in ${tests[@]};
+do
+       SESSION_NAME=$(randstring 16 0)
+       ${fct_test}
+done
+
+stop_lttng_sessiond
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