Document test anti-patterns
[lttng-tools.git] / tests / regression / tools / streaming / test_ust
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1#!/bin/bash
2#
3# Copyright (C) - 2012 David Goulet <dgoulet@efficios.com>
4#
5# This library is free software; you can redistribute it and/or modify it under
6# the terms of the GNU Lesser General Public License as published by the Free
7# Software Foundation; version 2.1 of the License.
8#
9# This library is distributed in the hope that it will be useful, but WITHOUT
10# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12# details.
13#
14# You should have received a copy of the GNU Lesser General Public License
15# along with this library; if not, write to the Free Software Foundation, Inc.,
16# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17TEST_DESC="Streaming - User space tracing"
18
19CURDIR=$(dirname $0)/
20TESTDIR=$CURDIR/../../..
21NR_ITER=5
22NR_USEC_WAIT=1000000
23TESTAPP_PATH="$TESTDIR/utils/testapp"
24TESTAPP_NAME="gen-ust-events"
25TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
26SESSION_NAME="stream"
27EVENT_NAME="tp:tptest"
28PID_RELAYD=0
29
30TRACE_PATH=$(mktemp -d)
31
32NUM_TESTS=16
33
34source $TESTDIR/utils/utils.sh
35
36if [ ! -x "$TESTAPP_BIN" ]; then
37 BAIL_OUT "No UST events binary detected."
38fi
39
40function lttng_create_session_uri
41{
42 # Create session with default path
43 $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME -U net://localhost >/dev/null 2>&1
44 ok $? "Create session with default path"
45}
46
47
48# MUST set TESTDIR before calling those functions
49
50function test_ust_before_start ()
51{
52 diag "Test UST streaming BEFORE tracing starts"
53 lttng_create_session_uri
54 enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
55
56 # Run 5 times with a 1 second delay
57 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1 &
58
59 start_lttng_tracing $SESSION_NAME
60 # Wait for the applications started in background
61 wait ${!}
62
63 stop_lttng_tracing $SESSION_NAME
64 destroy_lttng_session $SESSION_NAME
65}
66
67function test_ust_after_start ()
68{
69 diag "Test UST streaming AFTER tracing starts"
70 lttng_create_session_uri
71 enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
72 start_lttng_tracing $SESSION_NAME
73
74 # Run 5 times with a 1 second delay
75 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1
76
77 stop_lttng_tracing $SESSION_NAME
78 destroy_lttng_session $SESSION_NAME
79}
80
81plan_tests $NUM_TESTS
82
83print_test_banner "$TEST_DESC"
84
85start_lttng_relayd "-o $TRACE_PATH"
86start_lttng_sessiond
87
88tests=( test_ust_before_start test_ust_after_start )
89
90for fct_test in ${tests[@]};
91do
92 SESSION_NAME=$(randstring 16 0)
93 ${fct_test}
94
95 # Validate test
96 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
97 if [ $? -eq 0 ]; then
98 # Only delete if successful
99 rm -rf $TRACE_PATH
100 else
101 break
102 fi
103done
104
105stop_lttng_sessiond
106stop_lttng_relayd
107
108exit $out
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