2 # SPDX-License-Identifier: GPL-2.0-or-later
4 # Copyright (C) 2011-2018 Free Software Foundation, Inc.
6 # As a special exception to the GNU General Public License, if you
7 # distribute this file as part of a program that contains a
8 # configuration script generated by Autoconf, you may include it under
9 # the same distribution terms that you use for the rest of that program.
11 # This file is maintained in Automake, please report
12 # bugs to <bug-automake@gnu.org> or send patches to
13 # <automake-patches@gnu.org>.
15 scriptversion
=2013-12-23.17
; # UTC
17 # Make unconditional expansion of undefined variables an error. This
18 # helps a lot in preventing typo-related bugs.
25 echo "$me: fatal: $*" >&2
40 tap-driver.sh --test-name=NAME --log-file=PATH --trs-file=PATH
41 [--expect-failure={yes|no}] [--color-tests={yes|no}]
42 [--enable-hard-errors={yes|no}] [--ignore-exit]
43 [--diagnostic-string=STRING] [--merge|--no-merge]
44 [--comments|--no-comments] [--] TEST-COMMAND
45 The '--test-name', '-log-file' and '--trs-file' options are mandatory.
49 # TODO: better error handling in option parsing (in particular, ensure
50 # TODO: $log_file, $trs_file and $test_name are defined).
51 test_name
= # Used for reporting.
52 log_file
= # Where to save the result and output of the test script.
53 trs_file
= # Where to save the metadata of the test run.
60 while test $# -gt 0; do
62 --help) print_usage
; exit $?
;;
63 --version) echo "$me $scriptversion"; exit $?
;;
64 --test-name) test_name
=$2; shift;;
65 --log-file) log_file
=$2; shift;;
66 --trs-file) trs_file
=$2; shift;;
67 --color-tests) color_tests
=$2; shift;;
68 --expect-failure) expect_failure
=$2; shift;;
69 --enable-hard-errors) shift;; # No-op.
72 --ignore-exit) ignore_exit
=1;;
73 --comments) comments
=1;;
74 --no-comments) comments
=0;;
75 --diagnostic-string) diag_string
=$2; shift;;
77 -*) usage_error
"invalid option: '$1'";;
82 test $# -gt 0 || usage_error
"missing test command"
84 case $expect_failure in
85 yes) expect_failure
=1;;
89 if test $color_tests = yes; then
91 color_map["red"]="\e[0;31m" # Red.
92 color_map["grn"]="\e[0;32m" # Green.
93 color_map["lgn"]="\e[1;32m" # Light green.
94 color_map["blu"]="\e[1;34m" # Blue.
95 color_map["mgn"]="\e[0;35m" # Magenta.
96 color_map["std"]="\e[m" # No color.
97 color_for_result["ERROR"] = "mgn"
98 color_for_result["PASS"] = "grn"
99 color_for_result["XPASS"] = "red"
100 color_for_result["FAIL"] = "red"
101 color_for_result["XFAIL"] = "lgn"
102 color_for_result["SKIP"] = "blu"'
107 # :; is there to work around a bug in bash 3.2 (and earlier) which
108 # does not always set '$?' properly on redirection failure.
109 # See the Autoconf manual for more details.
112 # Ignore common signals (in this subshell only!), to avoid potential
113 # problems with Korn shells. Some Korn shells are known to propagate
114 # to themselves signals that have killed a child process they were
115 # waiting for; this is done at least for SIGINT (and usually only for
116 # it, in truth). Without the `trap' below, such a behaviour could
117 # cause a premature exit in the current subshell, e.g., in case the
118 # test command it runs gets terminated by a SIGINT. Thus, the awk
119 # script we are piping into would never seen the exit status it
120 # expects on its last input line (which is displayed below by the
121 # last `echo $?' statement), and would thus die reporting an internal
123 # For more information, see the Autoconf manual and the threads:
124 # <https://lists.gnu.org/archive/html/bug-autoconf/2011-09/msg00004.html>
125 # <http://mail.opensolaris.org/pipermail/ksh93-integration-discuss/2009-February/004121.html>
127 if test $merge -gt 0; then
134 ) | LC_ALL
=C
${AM_TAP_AWK-awk} \
136 -v test_script_name
="$test_name" \
137 -v log_file
="$log_file" \
138 -v trs_file
="$trs_file" \
139 -v expect_failure
="$expect_failure" \
141 -v ignore_exit
="$ignore_exit" \
142 -v comments
="$comments" \
143 -v diag_string
="$diag_string" \
145 # TODO: the usages of "cat >&3" below could be optimized when using
146 # GNU awk, and/on on systems that supports /dev/fd/.
148 # Implementation note: in what follows, `result_obj` will be an
149 # associative array that (partly) simulates a TAP result object
150 # from the `TAP::Parser` perl module.
158 print me ": " msg | "cat >&2"
162 function abort(where)
164 fatal("internal error " where)
167 # Convert a boolean to a "yes"/"no" string.
170 return bool ? "yes" : "no";
173 function add_test_result(result)
175 if (!test_results_index)
176 test_results_index = 0
177 test_results_list[test_results_index] = result
178 test_results_index += 1
179 test_results_seen[result] = 1;
182 # Whether the test script should be re-run by "make recheck".
183 function must_recheck()
185 for (k in test_results_seen)
186 if (k != "XFAIL" && k != "PASS" && k != "SKIP")
191 # Whether the content of the log file associated to this test should
192 # be copied into the "global" test-suite.log.
193 function copy_in_global_log()
195 for (k in test_results_seen)
201 function get_global_test_result()
203 if ("ERROR" in test_results_seen)
205 if ("FAIL" in test_results_seen || "XPASS" in test_results_seen)
208 for (k in test_results_seen)
216 function stringify_result_obj(result_obj)
218 if (result_obj["is_unplanned"] || result_obj["number"] != testno)
221 if (plan_seen == LATE_PLAN)
224 if (result_obj["directive"] == "TODO")
225 return result_obj["is_ok"] ? "XPASS" : "XFAIL"
227 if (result_obj["directive"] == "SKIP")
228 return result_obj["is_ok"] ? "SKIP" : COOKED_FAIL;
230 if (length(result_obj["directive"]))
231 abort("in function stringify_result_obj()")
233 return result_obj["is_ok"] ? COOKED_PASS : COOKED_FAIL
236 function decorate_result(result)
238 color_name = color_for_result[result]
240 return color_map[color_name] "" result "" color_map["std"]
241 # If we are not using colorized output, or if we do not know how
242 # to colorize the given result, we should return it unchanged.
246 function report(result, details)
248 if (result ~ /^(X?(PASS|FAIL)|SKIP|ERROR)/)
250 msg = ": " test_script_name
251 add_test_result(result)
253 else if (result == "#")
255 msg = " " test_script_name ":"
259 abort("in function report()")
262 msg = msg " " details
263 # Output on console might be colorized.
264 print decorate_result(result) msg
265 # Flush stdout after each test result, this is useful when stdout
266 # is buffered, for example in a CI system.
268 # Log the result in the log file too, to help debugging (this is
269 # especially true when said result is a TAP error or "Bail out!").
270 print result msg | "cat >&3";
273 function testsuite_error(error_message)
275 report("ERROR", "- " error_message)
278 function handle_tap_result()
280 details = result_obj["number"];
281 if (length(result_obj["description"]))
282 details = details " " result_obj["description"]
284 if (plan_seen == LATE_PLAN)
286 details = details " # AFTER LATE PLAN";
288 else if (result_obj["is_unplanned"])
290 details = details " # UNPLANNED";
292 else if (result_obj["number"] != testno)
294 details = sprintf("%s # OUT-OF-ORDER (expecting %d)",
297 else if (result_obj["directive"])
299 details = details " # " result_obj["directive"];
300 if (length(result_obj["explanation"]))
301 details = details " " result_obj["explanation"]
304 report(stringify_result_obj(result_obj), details)
307 # `skip_reason` should be empty whenever planned > 0.
308 function handle_tap_plan(planned, skip_reason)
310 planned += 0 # Avoid getting confused if, say, `planned` is "00"
311 if (length(skip_reason) && planned > 0)
312 abort("in function handle_tap_plan()")
315 # Error, only one plan per stream is acceptable.
316 testsuite_error("multiple test plans")
319 planned_tests = planned
320 # The TAP plan can come before or after *all* the TAP results; we speak
321 # respectively of an "early" or a "late" plan. If we see the plan line
322 # after at least one TAP result has been seen, assume we have a late
323 # plan; in this case, any further test result seen after the plan will
324 # be flagged as an error.
325 plan_seen = (testno >= 1 ? LATE_PLAN : EARLY_PLAN)
326 # If testno > 0, we have an error ("too many tests run") that will be
327 # automatically dealt with later, so do not worry about it here. If
328 # $plan_seen is true, we have an error due to a repeated plan, and that
329 # has already been dealt with above. Otherwise, we have a valid "plan
330 # with SKIP" specification, and should report it as a particular kind
332 if (planned == 0 && testno == 0)
334 if (length(skip_reason))
335 skip_reason = "- " skip_reason;
336 report("SKIP", skip_reason);
340 function extract_tap_comment(line)
342 if (index(line, diag_string) == 1)
344 # Strip leading `diag_string` from `line`.
345 line = substr(line, length(diag_string) + 1)
346 # And strip any leading and trailing whitespace left.
347 sub("^[ \t]*", "", line)
348 sub("[ \t]*$", "", line)
349 # Return what is left (if any).
355 # When this function is called, we know that line is a TAP result line,
356 # so that it matches the (perl) RE "^(not )?ok\b".
357 function setup_result_obj(line)
359 # Get the result, and remove it from the line.
360 result_obj["is_ok"] = (substr(line, 1, 2) == "ok" ? 1 : 0)
361 sub("^(not )?ok[ \t]*", "", line)
363 # If the result has an explicit number, get it and strip it; otherwise,
364 # automatically assign the next progresive number to it.
365 if (line ~ /^[0-9]+$/ || line ~ /^[0-9]+[^a-zA-Z0-9_]/)
367 match(line, "^[0-9]+")
368 # The final `+ 0` is to normalize numbers with leading zeros.
369 result_obj["number"] = substr(line, 1, RLENGTH) + 0
370 line = substr(line, RLENGTH + 1)
374 result_obj["number"] = testno
377 if (plan_seen == LATE_PLAN)
378 # No further test results are acceptable after a "late" TAP plan
380 result_obj["is_unplanned"] = 1
381 else if (plan_seen && testno > planned_tests)
382 result_obj["is_unplanned"] = 1
384 result_obj["is_unplanned"] = 0
386 # Strip trailing and leading whitespace.
387 sub("^[ \t]*", "", line)
388 sub("[ \t]*$", "", line)
390 # This will have to be corrected if we have a "TODO"/"SKIP" directive.
391 result_obj["description"] = line
392 result_obj["directive"] = ""
393 result_obj["explanation"] = ""
395 if (index(line, "#") == 0)
396 return # No possible directive, nothing more to do.
398 # Directives are case-insensitive.
399 rx = "[ \t]*#[ \t]*([tT][oO][dD][oO]|[sS][kK][iI][pP])[ \t]*"
401 # See whether we have the directive, and if yes, where.
402 pos = match(line, rx "$")
404 pos = match(line, rx "[^a-zA-Z0-9_]")
406 # If there was no TAP directive, we have nothing more to do.
410 # Let`s now see if the TAP directive has been escaped. For example:
411 # escaped: ok \# SKIP
412 # not escaped: ok \\# SKIP
413 # escaped: ok \\\\\# SKIP
414 # not escaped: ok \ # SKIP
415 if (substr(line, pos, 1) == "#")
418 for (i = pos; i > 1 && substr(line, i - 1, 1) == "\\"; i--)
420 if (bslash_count % 2)
421 return # Directive was escaped.
424 # Strip the directive and its explanation (if any) from the test
426 result_obj["description"] = substr(line, 1, pos - 1)
427 # Now remove the test description from the line, that has been dealt
429 line = substr(line, pos)
430 # Strip the directive, and save its value (normalized to upper case).
431 sub("^[ \t]*#[ \t]*", "", line)
432 result_obj["directive"] = toupper(substr(line, 1, 4))
433 line = substr(line, 5)
434 # Now get the explanation for the directive (if any), with leading
435 # and trailing whitespace removed.
436 sub("^[ \t]*", "", line)
437 sub("[ \t]*$", "", line)
438 result_obj["explanation"] = line
441 function get_test_exit_message(status)
445 if (status !~ /^[1-9][0-9]*$/)
446 abort("getting exit status")
449 else if (status == 127)
450 exit_details = " (command not found?)"
451 else if (status >= 128 && status <= 255)
452 exit_details = sprintf(" (terminated by signal %d?)", status - 128)
453 else if (status > 256 && status <= 384)
454 # We used to report an "abnormal termination" here, but some Korn
455 # shells, when a child process die due to signal number n, can leave
456 # in $? an exit status of 256+n instead of the more standard 128+n.
457 # Apparently, both behaviours are allowed by POSIX (2008), so be
458 # prepared to handle them both. See also Austing Group report ID
459 # 0000051 <http://www.austingroupbugs.net/view.php?id=51>
460 exit_details = sprintf(" (terminated by signal %d?)", status - 256)
462 # Never seen in practice.
463 exit_details = " (abnormal termination)"
464 return sprintf("exited with status %d%s", status, exit_details)
467 function write_test_results()
469 print ":global-test-result: " get_global_test_result() > trs_file
470 print ":recheck: " yn(must_recheck()) > trs_file
471 print ":copy-in-global-log: " yn(copy_in_global_log()) > trs_file
472 for (i = 0; i < test_results_index; i += 1)
473 print ":test-result: " test_results_list[i] > trs_file
485 # Properly initialized once the TAP plan is seen.
488 COOKED_PASS = expect_failure ? "XPASS": "PASS";
489 COOKED_FAIL = expect_failure ? "XFAIL": "FAIL";
491 # Enumeration-like constants to remember which kind of plan (if any)
492 # has been seen. It is important that NO_PLAN evaluates "false" as
498 testno = 0 # Number of test results seen so far.
499 bailed_out = 0 # Whether a "Bail out!" directive has been seen.
501 # Whether the TAP plan has been seen or not, and if yes, which kind
502 # it is ("early" is seen before any test result, "late" otherwise).
513 # Involutions required so that we are able to read the exit status
514 # from the last input line.
516 if (st < 0) # I/O error.
517 fatal("I/O error while reading from input stream")
518 else if (st == 0) # End-of-input
521 abort("in input loop: only one input line")
536 # Copy any input line verbatim into the log file.
538 # Parsing of TAP input should stop after a "Bail out!" directive.
543 if ($0 ~ /^(not )?ok$/ || $0 ~ /^(not )?ok[^a-zA-Z0-9_]/)
549 # TAP plan (normal or "SKIP" without explanation).
550 else if ($0 ~ /^1\.\.[0-9]+[ \t]*$/)
552 # The next two lines will put the number of planned tests in $0.
555 handle_tap_plan($0, "")
558 # TAP "SKIP" plan, with an explanation.
559 else if ($0 ~ /^1\.\.0+[ \t]*#/)
561 # The next lines will put the skip explanation in $0, stripping
562 # any leading and trailing whitespace. This is a little more
563 # tricky in truth, since we want to also strip a potential leading
564 # "SKIP" string from the message.
565 sub("^[^#]*#[ \t]*(SKIP[: \t][ \t]*)?", "")
567 handle_tap_plan(0, $0)
570 # Older versions of prove and TAP::Harness (e.g., 3.17) did not
571 # recognize a "Bail out!" directive when preceded by leading
572 # whitespace, but more modern versions (e.g., 3.23) do. So we
573 # emulate the latter, "more modern" behaviour.
574 else if ($0 ~ /^[ \t]*Bail out!/)
577 # Get the bailout message (if any), with leading and trailing
578 # whitespace stripped. The message remains stored in `$0`.
579 sub("^[ \t]*Bail out![ \t]*", "");
581 # Format the error message for the
582 bailout_message = "Bail out!"
584 bailout_message = bailout_message " " $0
585 testsuite_error(bailout_message)
587 # Maybe we have too look for dianogtic comments too.
588 else if (comments != 0)
590 comment = extract_tap_comment($0);
592 report("#", comment);
600 # A "Bail out!" directive should cause us to ignore any following TAP
601 # error, as well as a non-zero exit status from the TAP producer.
606 testsuite_error("missing test plan")
608 else if (planned_tests != testno)
610 bad_amount = testno > planned_tests ? "many" : "few"
611 testsuite_error(sprintf("too %s tests run (expected %d, got %d)",
612 bad_amount, planned_tests, testno))
616 # Fetch exit status from the last line.
617 exit_message = get_test_exit_message(nextline)
619 testsuite_error(exit_message)
627 } # End of "BEGIN" block.
630 # TODO: document that we consume the file descriptor 3 :-(
633 test $?
-eq 0 || fatal
"I/O or internal error"
638 # eval: (add-hook 'before-save-hook 'time-stamp)
639 # time-stamp-start: "scriptversion="
640 # time-stamp-format: "%:y-%02m-%02d.%02H"
641 # time-stamp-time-zone: "UTC0"
642 # time-stamp-end: "; # UTC"
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