--- /dev/null
+#!/bin/bash
+#
+# Copyright (C) - 2018 Jonathan Rajotte <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="Change working directory of process"
+
+CURDIR=$(dirname $0)/
+TESTDIR=$CURDIR/../../../
+
+DIR=$(readlink -f $TESTDIR)
+
+NUM_TESTS=22
+
+source $TESTDIR/utils/utils.sh
+
+
+#MUST set TESTDIR before calling those functions
+plan_tests $NUM_TESTS
+
+print_test_banner "$TEST_DESC"
+function test_relayd()
+{
+ local working_dir=$(mktemp -d)
+ local test_dir=$(readlink -f $TESTDIR)
+ local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN"
+
+ diag "Test lttng-relayd normal mode change working directory"
+
+ # There is no rendez-vous mechanism that can guarantee the good timing
+ # to check if the workdir directory was changed.
+ # In the case of lttng-sessiond this would be achieved using the
+ # --sig-parent option but lttng-relayd does not have this feature yet.
+ # Fall back on using polling of the value and unblock when the value is
+ # the one we expect. In case of a failure the test will hang.
+ $relayd_bin_path --working-directory $working_dir > /dev/null 2>&1 &
+ RELAYD_PIDS=$!
+
+ while true; do
+ local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd)
+ test "${working_dir}" = "${cwd}"
+ if [ $? -eq 0 ]; then
+ # Working dir for process is valid
+ break
+ fi
+ sleep 0.1
+ done
+
+ # If we are here the test passed
+ pass "Working directory changed"
+
+ stop_lttng_relayd
+ rm -rf ${working_dir}
+}
+
+function test_relayd_daemon()
+{
+ local working_dir=$(mktemp -d)
+
+ diag "Test lttng-relayd daemon mode change working directory"
+
+ start_lttng_relayd_opt 1 "-d" "--working-directory $working_dir"
+
+ local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd)
+
+ is "x${cwd}" "x${working_dir}" "Working directory changed"
+
+ stop_lttng_relayd
+ rm -rf ${working_dir}
+}
+
+function test_relayd_daemon_no_working_dir()
+{
+ local expected_working_dir="/"
+
+ diag "Test lttng-relayd daemon mode change working directory"
+
+ start_lttng_relayd_opt 1 "-d" ""
+
+ local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd)
+
+ is "x${cwd}" "x${expected_working_dir}" "Working directory is ${expected_working_dir}"
+
+ stop_lttng_relayd
+ rm -rf ${working_dir}
+}
+
+function test_relayd_background()
+{
+ local working_dir=$(mktemp -d)
+
+ diag "Test lttng-relayd background mode change working directory"
+
+ start_lttng_relayd_opt 1 "-b" "--working-directory $working_dir"
+
+ local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd)
+
+ is "x${cwd}" "x${working_dir}" "Working directory changed"
+
+ stop_lttng_relayd
+ rm -rf ${working_dir}
+}
+
+function test_relayd_background_no_working_dir()
+{
+ local expected_working_dir="/"
+ diag "Test lttng-relayd background working directory"
+
+ start_lttng_relayd_opt 1 "-b" ""
+
+ local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd)
+
+ is "x${cwd}" "x${expected_working_dir}" "Working directory is ${expected_working_dir}"
+
+ stop_lttng_relayd
+ rm -rf ${working_dir}
+}
+
+function test_relayd_debug_permission()
+{
+ local working_dir=$(mktemp -d)
+ local output_pattern='Working directory is not writable'
+ ERROR_OUTPUT_DEST=$(mktemp -u)
+
+ diag "Test lttng-relayd change working directory on non writable directory"
+
+ # Removing write access to working dir
+ okx chmod -w ${working_dir}
+
+ start_lttng_relayd_opt 1 "-b" "-v --working-dir $working_dir"
+
+ local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd)
+ is "x${cwd}" "x${working_dir}" "Workind directory changed"
+
+ local output_content="$(cat ${ERROR_OUTPUT_DEST})"
+ like "x${output_content}" "$output_pattern" "Warning about missing write permission is present"
+
+ stop_lttng_relayd
+ rm -rf ${working_dir} ${ERROR_OUTPUT_DEST}
+ ERROR_OUTPUT_DEST=/dev/null
+}
+
+function test_relayd_failure()
+{
+ local working_dir="$(mktemp -d)"
+ local working_dir_imaginary="${working_dir}/imaginary_directory"
+ local output_dest=$(mktemp -u)
+ local output_pattern='Error: Changing working directory'
+ local test_dir=$(readlink -f $TESTDIR)
+ local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN"
+
+ diag "Test lttng-relayd normal mode change non-existing directory"
+
+ $relayd_bin_path -b --working-directory $working_dir_imaginary > $output_dest 2>&1
+ test $? -eq "1"
+ ok $? "Expect failure to start lttng-relayd for non-existent working directory"
+
+ RELAYD_PIDS=$(pgrep $RELAYD_MATCH)
+ if [ -z "${RELAYD_PIDS}" ]; then
+ pass "No lttng-relayd present"
+ else
+ fail "No lttng-relayd present"
+ stop_lttng_relayd_notap
+ fi
+
+ local output_content="$(cat ${output_dest})"
+ like "x${output_content}" "$output_pattern" "Error about invalid directory"
+
+ rm -rf ${working_dir} ${output_dest}
+}
+
+TESTS=(
+ test_relayd
+ test_relayd_daemon
+ test_relayd_daemon_no_working_dir
+ test_relayd_background
+ test_relayd_background_no_working_dir
+ test_relayd_debug_permission
+ test_relayd_failure
+)
+
+for fct_test in ${TESTS[@]};
+do
+ ${fct_test}
+ if [ $? -ne 0 ]; then
+ break;
+ fi
+done
function start_lttng_relayd_opt()
{
local withtap=$1
- local opt=$2
+ local process_mode=$2
+ local opt=$3
DIR=$(readlink -f $TESTDIR)
if [ -z $(pgrep $RELAYD_MATCH) ]; then
- $DIR/../src/bin/lttng-relayd/$RELAYD_BIN -b $opt 1> $OUTPUT_DEST 2> $ERROR_OUTPUT_DEST
+ $DIR/../src/bin/lttng-relayd/$RELAYD_BIN $process_mode $opt 1> $OUTPUT_DEST 2> $ERROR_OUTPUT_DEST
#$DIR/../src/bin/lttng-relayd/$RELAYD_BIN $opt -vvv >>/tmp/relayd.log 2>&1 &
if [ $? -eq 1 ]; then
if [ $withtap -eq "1" ]; then
- fail "Start lttng-relayd (opt: $opt)"
+ fail "Start lttng-relayd (process mode: $process_mode opt: $opt)"
fi
return 1
else
if [ $withtap -eq "1" ]; then
- pass "Start lttng-relayd (opt: $opt)"
+ pass "Start lttng-relayd (process mode: $process_mode opt: $opt)"
fi
fi
else
function start_lttng_relayd()
{
- start_lttng_relayd_opt 1 "$@"
+ start_lttng_relayd_opt 1 "-b" "$@"
}
function start_lttng_relayd_notap()
{
- start_lttng_relayd_opt 0 "$@"
+ start_lttng_relayd_opt 0 "-b" "$@"
}
function stop_lttng_relayd_opt()
projects / lttng-tools.git / commitdiff
