--- /dev/null
+#!/bin/bash
+#
+# Copyright (C) - 2019 Jonathan Rajotte-Julien <jonathan.rajotte-julien@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="Metadata env - User space tracing"
+
+CURDIR=$(dirname "$0")/
+TESTDIR=$CURDIR/../../..
+TESTAPP_PATH="$TESTDIR/utils/testapp"
+TESTAPP_NAME="gen-ust-events"
+TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
+EVENT_NAME="tp:tptest"
+
+TRACE_PATH=$(mktemp -d)
+
+NUM_TESTS=37
+
+NR_ITER=10
+NR_USEC_WAIT=0
+
+source "$TESTDIR/utils/utils.sh"
+
+# Fetch utils functions common to ust and kernel tests.
+source "$CURDIR/utils.sh"
+
+if [ ! -x "$TESTAPP_BIN" ]; then
+ BAIL_OUT "No UST events binary detected."
+fi
+
+function test_per_uid ()
+{
+ local metadata
+ local metadata_env
+ local metadata_path
+ local value
+ local value2
+
+ local expected_path="${TRACE_PATH}/lttng-traces"
+ local session_name="per-uid"
+
+ metadata=$(mktemp)
+ metadata_env=$(mktemp)
+
+ diag "Test UST metadata env field in per-uid mode"
+ create_lttng_session_ok "$session_name"
+ enable_ust_lttng_event_ok "$session_name" $EVENT_NAME
+ start_lttng_tracing_ok "$session_name"
+
+ $TESTAPP_BIN $NR_ITER
+
+ stop_lttng_tracing_ok "$session_name"
+ destroy_lttng_session_ok "$session_name"
+
+ # bt1 accepts only a directory while bt2 accepts either the metadata
+ # file directly or a directory with an immediate metadata file.
+ # Settle for the common denominator.
+ metadata_path=$(find "${expected_path}/${session_name}"* | grep metadata)
+ metadata_path=$(dirname "$metadata_path")
+
+ $BABELTRACE_BIN --output-format=ctf-metadata "${metadata_path}" > "$metadata"
+
+ # Extract "env" scope
+ awk '/env {/,/};/' < "$metadata" > "$metadata_env"
+
+ # Construct the expected path from the env metadata and use it to
+ # validate that all information make sense. This information is present
+ # to allow trace viewer to recreate the same directory hierarchy.
+
+ # Trace name
+ value=$(get_env_value "$metadata_env" trace_name)
+ ok $? "Extracting trace_name from env metadata"
+ expected_path="${expected_path}/${value}"
+
+ # Session creation time
+ value=$(get_env_value "$metadata_env" trace_creation_datetime)
+ ok $? "Extracting trace_creation_datetime from env metadata"
+ value=$(iso8601_to_lttng_dir_datetime "$value")
+ expected_path="${expected_path}-${value}"
+
+ # Domain
+ value=$(get_env_value "$metadata_env" domain)
+ ok $? "Extracting domain from env metadata"
+ expected_path="${expected_path}/${value}"
+
+ # Buffering scheme
+ value=$(get_env_value "$metadata_env" tracer_buffering_scheme)
+ ok $? "Extracting tracer_buffering_scheme from env metadata"
+ expected_path="${expected_path}/${value}"
+
+ # tracer_buffering_id
+ value=$(get_env_value "$metadata_env" tracer_buffering_id)
+ ok $? "Extracting tracer_buffering_id from env metadata"
+ expected_path="${expected_path}/${value}"
+
+ # Check that the uid is the one we expect from the current user
+ is "$value" "$(id -u)" "tracer_buffering_id match current user uid"
+
+ # Architecture_bit_width
+ value=$(get_env_value "$metadata_env" architecture_bit_width)
+ ok $? "Extracting architecture_bit_width from env metadata"
+ expected_path="${expected_path}/${value}-bit"
+
+ # Append "metadata" and test that we find the file.
+ expected_path="${expected_path}/metadata"
+
+ test -e "$expected_path"
+ ok $? "Reconstructed path from metadata is valid"
+
+ # Hostname
+ # The hostname is not part of the lttng hierarchy still we can test for
+ # its validity here.
+ value=$(get_env_value "$metadata_env" hostname)
+ ok $? "Extracting hostname from env metadata"
+ is "$value" "$(hostname)" "Hostname is valid"
+
+ rm -f "$metadata"
+ rm -f "$metadata_env"
+}
+
+function test_per_pid ()
+{
+ local metadata
+ local metadata_env
+ local metadata_path
+ local testapp_pid
+ local value
+ local value2
+
+ local expected_path="${TRACE_PATH}/lttng-traces"
+ local session_name="per-pid"
+
+ metadata=$(mktemp)
+ metadata_env=$(mktemp)
+
+ diag "Test UST metadata env field in per-pid mode"
+ create_lttng_session_ok "$session_name"
+ enable_ust_lttng_channel_ok "$session_name" channel "--buffers-pid"
+ enable_ust_lttng_event_ok "$session_name" $EVENT_NAME channel
+ start_lttng_tracing_ok "$session_name"
+
+ $TESTAPP_BIN "$NR_ITER" "$NR_USEC_WAIT" &
+ testapp_pid=$!
+ wait $testapp_pid
+
+ stop_lttng_tracing_ok "$session_name"
+ destroy_lttng_session_ok "$session_name"
+
+ # bt1 accepts only a directory while bt2 accepts either the metadata
+ # file directly or a directory with an immediate metadata file.
+ # Settle for the common denominator.
+ metadata_path=$(find "${expected_path}/${session_name}"* | grep metadata)
+ metadata_path=$(dirname "$metadata_path")
+
+ $BABELTRACE_BIN --output-format=ctf-metadata "${metadata_path}" 1> "$metadata"
+
+ # Extract "env" scope
+ awk '/env {/,/};/' < "$metadata" > "$metadata_env"
+
+ # Construct the expected path from the env metadata and use it to
+ # validate that all information make sense. This information is present
+ # to allow trace viewer to recreate the same directory hierarchy.
+
+ # Trace name
+ value=$(get_env_value "$metadata_env" trace_name)
+ ok $? "Extracting trace_name from env metadata"
+ expected_path="${expected_path}/${value}"
+
+ # Session creation time
+ value=$(get_env_value "$metadata_env" trace_creation_datetime)
+ ok $? "Extracting trace_creation_datetime from env metadata"
+ value=$(iso8601_to_lttng_dir_datetime "$value")
+ expected_path="${expected_path}-${value}"
+
+ # Domain
+ value=$(get_env_value "$metadata_env" domain)
+ ok $? "Extracting domain from env metadata"
+ expected_path="${expected_path}/${value}"
+
+ # Buffering scheme
+ value=$(get_env_value "$metadata_env" tracer_buffering_scheme)
+ ok $? "Extracting tracer_buffering_scheme from env metadata"
+ expected_path="${expected_path}/${value}"
+
+ # Procname
+ value=$(get_env_value "$metadata_env" procname)
+ ok $? "Extracting procname from env metadata"
+ expected_path="${expected_path}/${value}"
+
+ # vpid and tracer_buffering_id should be the same here.
+ # "vpid =" is used since other key have vpid in them.
+ value=$(get_env_value "$metadata_env" "vpid =")
+ ok $? "Extracting vpid from env metadata"
+
+ value2=$(get_env_value "$metadata_env" tracer_buffering_id)
+ ok $? "Extracting tracer_buffering_id from env metadata"
+ expected_path="${expected_path}-${value2}"
+
+ is "$value" "$value2" "vpid and tracer_buffering_id are identical"
+ is "$testapp_pid" "$value" "vpid and known testapp pid are identical"
+ is "$testapp_pid" "$value2" "tracer_buffering_id and known testapp pid are identical"
+
+ # vpid_datetime
+ value=$(get_env_value "$metadata_env" vpid_datetime)
+ ok $? "Extracting vpid_datetime from env metadata"
+ value=$(iso8601_to_lttng_dir_datetime "$value")
+ expected_path="${expected_path}-${value}"
+
+ # Append "metadata" and test that we find the file.
+ expected_path="${expected_path}/metadata"
+
+ test -e "$expected_path"
+ ok $? "Reconstructed path from metadata is valid"
+
+ # Hostname
+ # The hostname is not part of the lttng hierarchy still we can test for
+ # its validity here.
+ value=$(get_env_value "$metadata_env" hostname)
+ ok $? "Extracting hostname from env metadata"
+ is "$value" "$(hostname)" "Hostname is valid"
+
+ rm -f "$metadata"
+ rm -f "$metadata_env"
+}
+
+plan_tests $NUM_TESTS
+
+print_test_banner "$TEST_DESC"
+
+# Use LTTNG_HOME since we want the complete "default" lttng directory hierarchy
+# with "<session_name>-<datetime>/...".
+LTTNG_HOME="$TRACE_PATH"
+
+export LTTNG_HOME
+start_lttng_sessiond
+
+tests=( test_per_uid test_per_pid )
+
+for fct_test in "${tests[@]}";
+do
+ ${fct_test}
+done
+
+stop_lttng_sessiond
+unset LTTNG_HOME
+
+rm -rf "$TRACE_PATH"
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