[userspace-rcu.git] / tests / utils / tap.sh

#!/usr/bin/env bash
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
# SPDX-FileCopyrightText: 2010 Patrick LeBoutillier <patrick.leboutillier@gmail.com>
#

_version='1.01'

_plan_set=0
_no_plan=0
_skip_all=0
_test_died=0
_expected_tests=0
_executed_tests=0
_failed_tests=0
TODO=


usage(){
    cat <<'USAGE'
tap-functions: A TAP-producing BASH library

PLAN:
  plan_no_plan
  plan_skip_all [REASON]
  plan_tests NB_TESTS

TEST:
  ok RESULT [NAME]
  okx COMMAND
  is RESULT EXPECTED [NAME]
  isnt RESULT EXPECTED [NAME]
  like RESULT PATTERN [NAME]
  unlike RESULT PATTERN [NAME]
  pass [NAME]
  fail [NAME]

SKIP:
  skip [CONDITION] [REASON] [NB_TESTS=1]

  skip $feature_not_present "feature not present" 2 || {
      is $a "a"
      is $b "b"
  }

TODO:
  Specify TODO mode by setting $TODO:
    TODO="not implemented yet"
    ok $result "some not implemented test"
    unset TODO

OTHER:
  diag MSG

EXAMPLE:
  #!/usr/bin/env bash

  . tap-functions

  plan_tests 7

  me=$USER
  is $USER $me "I am myself"
  like $HOME $me "My home is mine"
  like "`id`" $me "My id matches myself"

  /bin/ls $HOME 1>&2
  ok $? "/bin/ls $HOME"
  # Same thing using okx shortcut
  okx /bin/ls $HOME

  [[ "`id -u`" != "0" ]]
  i_am_not_root=$?
  skip $i_am_not_root "Must be root" || {
    okx ls /root
  }

  TODO="figure out how to become root..."
  okx [ "$HOME" == "/root" ]
  unset TODO
USAGE
    exit
}

opt=
set_u=
while getopts ":sx" opt ; do
    case $_opt in
        u) set_u=1 ;;
        *) usage ;;
    esac
done
shift $(( OPTIND - 1 ))
# Don't allow uninitialized variables if requested
[[ -n "$set_u" ]] && set -u
unset opt set_u

# Used to call _cleanup on shell exit
trap _exit EXIT


plan_no_plan(){
    (( _plan_set != 0 )) && "You tried to plan twice!"

    _plan_set=1
    _no_plan=1

    return 0
}


plan_skip_all(){
    local reason=${1:-''}

    (( _plan_set != 0 )) && _die "You tried to plan twice!"

    _print_plan 0 "Skip $reason"

    _skip_all=1
    _plan_set=1
    _exit 0

    return 0
}

plan_tests(){
    local tests=${1:?}

    (( _plan_set != 0 )) && _die "You tried to plan twice!"
    (( tests == 0 )) && _die "You said to run 0 tests!  You've got to run something."

    _print_plan $tests
    _expected_tests=$tests
    _plan_set=1

    return $tests
}


_print_plan(){
    local tests=${1:?}
    local directive=${2:-''}

    echo -n "1..$tests"
    [[ -n "$directive" ]] && echo -n " # $directive"
    echo
}


pass(){
    local name=$1
    ok 0 "$name"
}


fail(){
    local name=$1
    ok 1 "$name"
}

# This is the workhorse method that actually
# prints the tests result.
ok(){
    local result=${1:?}
    local name=${2:-''}

    (( _plan_set == 0 )) && _die "You tried to run a test without a plan!  Gotta have a plan."

    _executed_tests=$(( $_executed_tests + 1 ))

    if [[ -n "$name" ]] ; then
        if _matches "$name" "^[0-9]+$" ; then
            diag "    You named your test '$name'.  You shouldn't use numbers for your test names."
            diag "    Very confusing."
        fi
    fi

    if (( result != 0 )) ; then
        echo -n "not "
        _failed_tests=$(( _failed_tests + 1 ))
    fi
    echo -n "ok $_executed_tests"

    if [[ -n "$name" ]] ; then
        local ename=${name//\#/\\#}
        echo -n " - $ename"
    fi

    if [[ -n "$TODO" ]] ; then
        echo -n " # TODO $TODO" ;
        if (( result != 0 )) ; then
            _failed_tests=$(( _failed_tests - 1 ))
        fi
    fi

    echo
    if (( result != 0 )) ; then
        local file='tap-functions'
        local func=
        local line=

        local i=0
        local bt=$(caller $i)
        while _matches "$bt" "tap-functions$" ; do
            i=$(( $i + 1 ))
            bt=$(caller $i)
        done
        local backtrace=
        eval $(caller $i | (read line func file ; echo "backtrace=\"$file:$func() at line $line.\""))

        local t=
        [[ -n "$TODO" ]] && t="(TODO) "

        if [[ -n "$name" ]] ; then
            diag "  Failed ${t}test '$name'"
            diag "  in $backtrace"
        else
            diag "  Failed ${t}test in $backtrace"
        fi
    fi

    return $result
}


okx(){
    local command="$@"

    local line=
    diag "Output of '$command':"
    "$@" | while read line ; do
        diag "$line"
    done
    ok ${PIPESTATUS[0]} "$command"
}


_equals(){
    local result=${1:?}
    local expected=${2:?}

    if [[ "$result" == "$expected" ]] ; then
        return 0
    else
        return 1
    fi
}


# Thanks to Aaron Kangas for the patch to allow regexp matching
# under bash < 3.
 _bash_major_version=${BASH_VERSION%%.*}
_matches(){
    local result=${1:?}
    local pattern=${2:?}

    if [[ -z "$result" || -z "$pattern" ]] ; then
        return 1
    else
        if (( _bash_major_version >= 3 )) ; then
            [[ "$result" =~ "$pattern" ]]
        else
            echo "$result" | egrep -q "$pattern"
        fi
    fi
}


_is_diag(){
    local result=${1:?}
    local expected=${2:?}

    diag "         got: '$result'"
    diag "    expected: '$expected'"
}


is(){
    local result=${1:?}
    local expected=${2:?}
    local name=${3:-''}

    _equals "$result" "$expected"
    (( $? == 0 ))
    ok $? "$name"
    local r=$?
    (( r != 0 )) && _is_diag "$result" "$expected"
    return $r
}


isnt(){
    local result=${1:?}
    local expected=${2:?}
    local name=${3:-''}

    _equals "$result" "$expected"
    (( $? != 0 ))
    ok $? "$name"
    local r=$?
    (( r != 0 )) && _is_diag "$result" "$expected"
    return $r
}


like(){
    local result=${1:?}
    local pattern=${2:?}
    local name=${3:-''}

    _matches "$result" "$pattern"
    (( $? == 0 ))
    ok $? "$name"
    local r=$?
    (( r != 0 )) && diag "    '$result' doesn't match '$pattern'"
    return $r
}


unlike(){
    local result=${1:?}
    local pattern=${2:?}
    local name=${3:-''}

    _matches "$result" "$pattern"
    (( $? != 0 ))
    ok $? "$name"
    local r=$?
    (( r != 0 )) && diag "    '$result' matches '$pattern'"
    return $r
}


skip(){
    local condition=${1:?}
    local reason=${2:-''}
    local n=${3:-1}

    if (( condition == 0 )) ; then
        local i=
        for (( i=0 ; i<$n ; i++ )) ; do
            _executed_tests=$(( _executed_tests + 1 ))
            echo "ok $_executed_tests # skip: $reason"
        done
        return 0
    else
        return
    fi
}


diag(){
    local msg=${1:?}

    if [[ -n "$msg" ]] ; then
        echo "# $msg"
    fi

    return 1
}


_die(){
    local reason=${1:-'<unspecified error>'}

    echo "$reason" >&2
    _test_died=1
    _exit 255
}


BAIL_OUT(){
    local reason=${1:-''}

    echo "Bail out! $reason" >&2
    _exit 255
}


_cleanup(){
    local rc=0

    if (( _plan_set == 0 )) ; then
        diag "Looks like your test died before it could output anything."
        return $rc
    fi

    if (( _test_died != 0 )) ; then
        diag "Looks like your test died just after $_executed_tests."
        return $rc
    fi

    if (( _skip_all == 0 && _no_plan != 0 )) ; then
        _print_plan $_executed_tests
    fi

    local s=
    if (( _no_plan == 0 && _expected_tests < _executed_tests )) ; then
        s= ; (( _expected_tests > 1 )) && s=s
        local extra=$(( _executed_tests - _expected_tests ))
        diag "Looks like you planned $_expected_tests test$s but ran $extra extra."
        rc=1 ;
    fi

    if (( _no_plan == 0 && _expected_tests > _executed_tests )) ; then
        s= ; (( _expected_tests > 1 )) && s=s
        diag "Looks like you planned $_expected_tests test$s but only ran $_executed_tests."
    fi

    if (( _failed_tests > 0 )) ; then
        s= ; (( _failed_tests > 1 )) && s=s
        diag "Looks like you failed $_failed_tests test$s of $_executed_tests."
    fi

    return $rc
}


_exit_status(){
    if (( _no_plan != 0 || _plan_set == 0 )) ; then
        return $_failed_tests
    fi

    if (( _expected_tests < _executed_tests )) ; then
        return $(( _executed_tests - _expected_tests  ))
    fi

    return $(( _failed_tests + ( _expected_tests - _executed_tests )))
}


_exit(){
    local rc=${1:-''}
    if [[ -z "$rc" ]] ; then
        _exit_status
        rc=$?
    fi

    _cleanup
    local alt_rc=$?
    (( alt_rc != 0 )) && rc=$alt_rc
    trap - EXIT
    exit $rc
}
Commit	Line	Data
da56d5ca	1	#!/usr/bin/env bash
1b387491	2	#
d001c886	3	# SPDX-License-Identifier: GPL-3.0-or-later
1b387491	4	#
d001c886	5	# SPDX-FileCopyrightText: 2010 Patrick LeBoutillier <patrick.leboutillier@gmail.com>
1b387491	6	#
1b387491 MJ	7
	8	_version='1.01'
	9
	10	_plan_set=0
	11	_no_plan=0
	12	_skip_all=0
	13	_test_died=0
	14	_expected_tests=0
	15	_executed_tests=0
	16	_failed_tests=0
	17	TODO=
	18
	19
	20	usage(){
	21	cat <<'USAGE'
	22	tap-functions: A TAP-producing BASH library
	23
	24	PLAN:
	25	plan_no_plan
	26	plan_skip_all [REASON]
	27	plan_tests NB_TESTS
	28
	29	TEST:
	30	ok RESULT [NAME]
	31	okx COMMAND
	32	is RESULT EXPECTED [NAME]
	33	isnt RESULT EXPECTED [NAME]
	34	like RESULT PATTERN [NAME]
	35	unlike RESULT PATTERN [NAME]
	36	pass [NAME]
	37	fail [NAME]
	38
	39	SKIP:
	40	skip [CONDITION] [REASON] [NB_TESTS=1]
	41
	42	skip $feature_not_present "feature not present" 2 \|\| {
	43	is $a "a"
	44	is $b "b"
	45	}
	46
	47	TODO:
	48	Specify TODO mode by setting $TODO:
	49	TODO="not implemented yet"
	50	ok $result "some not implemented test"
	51	unset TODO
	52
	53	OTHER:
	54	diag MSG
	55
	56	EXAMPLE:
da56d5ca	57	#!/usr/bin/env bash
1b387491 MJ	58
	59	. tap-functions
	60
	61	plan_tests 7
	62
	63	me=$USER
	64	is $USER $me "I am myself"
	65	like $HOME $me "My home is mine"
	66	like "`id`" $me "My id matches myself"
	67
	68	/bin/ls $HOME 1>&2
	69	ok $? "/bin/ls $HOME"
	70	# Same thing using okx shortcut
	71	okx /bin/ls $HOME
	72
	73	[[ "`id -u`" != "0" ]]
	74	i_am_not_root=$?
	75	skip $i_am_not_root "Must be root" \|\| {
	76	okx ls /root
	77	}
	78
	79	TODO="figure out how to become root..."
	80	okx [ "$HOME" == "/root" ]
	81	unset TODO
	82	USAGE
	83	exit
	84	}
	85
	86	opt=
	87	set_u=
	88	while getopts ":sx" opt ; do
	89	case $_opt in
	90	u) set_u=1 ;;
	91	*) usage ;;
	92	esac
	93	done
	94	shift $(( OPTIND - 1 ))
	95	# Don't allow uninitialized variables if requested
	96	[[ -n "$set_u" ]] && set -u
	97	unset opt set_u
	98
	99	# Used to call _cleanup on shell exit
	100	trap _exit EXIT
	101
	102
	103	plan_no_plan(){
	104	(( _plan_set != 0 )) && "You tried to plan twice!"
	105
	106	_plan_set=1
	107	_no_plan=1
	108
	109	return 0
	110	}
	111
	112
	113	plan_skip_all(){
	114	local reason=${1:-''}
	115
	116	(( _plan_set != 0 )) && _die "You tried to plan twice!"
	117
	118	_print_plan 0 "Skip $reason"
	119
	120	_skip_all=1
	121	_plan_set=1
122	_exit 0
123
124	return 0
125	}
126
127	plan_tests(){
128	local tests=${1:?}
129
130	(( _plan_set != 0 )) && _die "You tried to plan twice!"
131	(( tests == 0 )) && _die "You said to run 0 tests! You've got to run something."
132
133	_print_plan $tests
134	_expected_tests=$tests
135	_plan_set=1
136
137	return $tests
138	}
139
140
141	_print_plan(){
142	local tests=${1:?}
143	local directive=${2:-''}
144
145	echo -n "1..$tests"
146	[[ -n "$directive" ]] && echo -n " # $directive"
147	echo
148	}
149
150
151	pass(){
152	local name=$1
153	ok 0 "$name"
154	}
155
156
157	fail(){
158	local name=$1
159	ok 1 "$name"
160	}
161
162	# This is the workhorse method that actually
163	# prints the tests result.
164	ok(){
165	local result=${1:?}
166	local name=${2:-''}
167
168	(( _plan_set == 0 )) && _die "You tried to run a test without a plan! Gotta have a plan."
169
170	_executed_tests=$(( $_executed_tests + 1 ))
171
172	if [[ -n "$name" ]] ; then
173	if _matches "$name" "^[0-9]+$" ; then
174	diag " You named your test '$name'. You shouldn't use numbers for your test names."
175	diag " Very confusing."
176	fi
177	fi
178
179	if (( result != 0 )) ; then
180	echo -n "not "
181	_failed_tests=$(( _failed_tests + 1 ))
182	fi
183	echo -n "ok $_executed_tests"
184
185	if [[ -n "$name" ]] ; then
186	local ename=${name//\#/\\#}
187	echo -n " - $ename"
188	fi
189
190	if [[ -n "$TODO" ]] ; then
191	echo -n " # TODO $TODO" ;
192	if (( result != 0 )) ; then
193	_failed_tests=$(( _failed_tests - 1 ))
194	fi
195	fi
196
197	echo
198	if (( result != 0 )) ; then
199	local file='tap-functions'
200	local func=
201	local line=
202
203	local i=0
204	local bt=$(caller $i)
205	while _matches "$bt" "tap-functions$" ; do
206	i=$(( $i + 1 ))
207	bt=$(caller $i)
208	done
209	local backtrace=
210	eval $(caller $i \| (read line func file ; echo "backtrace=\"$file:$func() at line $line.\""))
211
212	local t=
213	[[ -n "$TODO" ]] && t="(TODO) "
214
215	if [[ -n "$name" ]] ; then
216	diag " Failed ${t}test '$name'"
217	diag " in $backtrace"
218	else
219	diag " Failed ${t}test in $backtrace"
220	fi
221	fi
222
223	return $result
224	}
225
226
227	okx(){
228	local command="$@"
229
230	local line=
231	diag "Output of '$command':"
232	"$@" \| while read line ; do
233	diag "$line"
234	done
235	ok ${PIPESTATUS[0]} "$command"
236	}
237
238
239	_equals(){
240	local result=${1:?}
241	local expected=${2:?}
242
243	if [[ "$result" == "$expected" ]] ; then
244	return 0
245	else
246	return 1
247	fi
248	}
249
250
251	# Thanks to Aaron Kangas for the patch to allow regexp matching
252	# under bash < 3.
253	_bash_major_version=${BASH_VERSION%%.*}
254	_matches(){
255	local result=${1:?}
256	local pattern=${2:?}
257
258	if [[ -z "$result" \|\| -z "$pattern" ]] ; then
259	return 1
260	else
261	if (( _bash_major_version >= 3 )) ; then
262	[[ "$result" =~ "$pattern" ]]
263	else
264	echo "$result" \| egrep -q "$pattern"
265	fi
266	fi
267	}
268
269
270	_is_diag(){
271	local result=${1:?}
272	local expected=${2:?}
273
274	diag " got: '$result'"
275	diag " expected: '$expected'"
276	}
277
278
279	is(){
280	local result=${1:?}
281	local expected=${2:?}
282	local name=${3:-''}
283
284	_equals "$result" "$expected"
285	(( $? == 0 ))
286	ok $? "$name"
287	local r=$?
288	(( r != 0 )) && _is_diag "$result" "$expected"
289	return $r
290	}
291
292
293	isnt(){
294	local result=${1:?}
295	local expected=${2:?}
296	local name=${3:-''}
297
298	_equals "$result" "$expected"
299	(( $? != 0 ))
300	ok $? "$name"
301	local r=$?
302	(( r != 0 )) && _is_diag "$result" "$expected"
303	return $r
304	}
305
306
307	like(){
308	local result=${1:?}
309	local pattern=${2:?}
310	local name=${3:-''}
311
312	_matches "$result" "$pattern"
313	(( $? == 0 ))
314	ok $? "$name"
315	local r=$?
316	(( r != 0 )) && diag " '$result' doesn't match '$pattern'"
317	return $r
318	}
319
320
321	unlike(){
322	local result=${1:?}
323	local pattern=${2:?}
324	local name=${3:-''}
325
326	_matches "$result" "$pattern"
327	(( $? != 0 ))
328	ok $? "$name"
329	local r=$?
330	(( r != 0 )) && diag " '$result' matches '$pattern'"
331	return $r
332	}
333
334
335	skip(){
336	local condition=${1:?}
337	local reason=${2:-''}
338	local n=${3:-1}
339
340	if (( condition == 0 )) ; then
341	local i=
342	for (( i=0 ; i<$n ; i++ )) ; do
343	_executed_tests=$(( _executed_tests + 1 ))
344	echo "ok $_executed_tests # skip: $reason"
345	done
346	return 0
347	else
348	return
349	fi
350	}
351
352
353	diag(){
354	local msg=${1:?}
355
356	if [[ -n "$msg" ]] ; then
357	echo "# $msg"
358	fi
359
360	return 1
361	}
362
363
364	_die(){
365	local reason=${1:-'<unspecified error>'}
366
367	echo "$reason" >&2
368	_test_died=1
369	_exit 255
370	}
371
372
373	BAIL_OUT(){
374	local reason=${1:-''}
375
376	echo "Bail out! $reason" >&2
377	_exit 255
378	}
379
380
381	_cleanup(){
382	local rc=0
383
384	if (( _plan_set == 0 )) ; then
385	diag "Looks like your test died before it could output anything."
386	return $rc
387	fi
388
389	if (( _test_died != 0 )) ; then
390	diag "Looks like your test died just after $_executed_tests."
391	return $rc
392	fi
393
394	if (( _skip_all == 0 && _no_plan != 0 )) ; then
395	_print_plan $_executed_tests
396	fi
397
398	local s=
399	if (( _no_plan == 0 && _expected_tests < _executed_tests )) ; then
400	s= ; (( _expected_tests > 1 )) && s=s
401	local extra=$(( _executed_tests - _expected_tests ))
402	diag "Looks like you planned $_expected_tests test$s but ran $extra extra."
403	rc=1 ;
404	fi
405
406	if (( _no_plan == 0 && _expected_tests > _executed_tests )) ; then
407	s= ; (( _expected_tests > 1 )) && s=s
408	diag "Looks like you planned $_expected_tests test$s but only ran $_executed_tests."
409	fi
410
411	if (( _failed_tests > 0 )) ; then
412	s= ; (( _failed_tests > 1 )) && s=s
413	diag "Looks like you failed $_failed_tests test$s of $_executed_tests."
414	fi
415
416	return $rc
417	}
418
419
420	_exit_status(){
421	if (( _no_plan != 0 \|\| _plan_set == 0 )) ; then
422	return $_failed_tests
423	fi
424
425	if (( _expected_tests < _executed_tests )) ; then
426	return $(( _executed_tests - _expected_tests ))
427	fi
428
429	return $(( _failed_tests + ( _expected_tests - _executed_tests )))
430	}
431
432
433	_exit(){
434	local rc=${1:-''}
435	if [[ -z "$rc" ]] ; then
436	_exit_status
437	rc=$?
438	fi
439
440	_cleanup
441	local alt_rc=$?
442	(( alt_rc != 0 )) && rc=$alt_rc
443	trap - EXIT
444	exit $rc
445	}