test/unit_test.ksh

   1 #!/usr/bin/env ksh
   2 # this has been hacked to work with bash; ksh is preferred
   3
   4 #==================================================================================
   5 #        Copyright (c) 2019 Nokia
   6 #        Copyright (c) 2018-2019 AT&T Intellectual Property.
   7 #
   8 #   Licensed under the Apache License, Version 2.0 (the "License");
   9 #   you may not use this file except in compliance with the License.
  10 #   You may obtain a copy of the License at
  11 #
  12 #       http://www.apache.org/licenses/LICENSE-2.0
  13 #
  14 #   Unless required by applicable law or agreed to in writing, software
  15 #   distributed under the License is distributed on an "AS IS" BASIS,
  16 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17 #   See the License for the specific language governing permissions and
  18 #   limitations under the License.
  19 #==================================================================================
  20
  21
  22 #
  23 #       Mnemonic:       unit_test.ksh
  24 #       Abstract:       Execute unit test(s) in the directory and produce a more
  25 #                               meaningful summary than gcov gives by default (exclude
  26 #                               coverage  on the unit test functions).
  27 #
  28 #                               Test files must be named *_test.c, or must explicitly be
  29 #                               supplied on the command line. Functions in the test
  30 #                               files will not be reported on provided that they have
  31 #                               their prototype (all on the SAME line) as:
  32 #                                       static type name() {
  33 #
  34 #                               Functions with coverage less than 80% will be reported as
  35 #                               [LOW] in the output.  A file is considered to pass if the
  36 #                               overall execution percentage for the file is >= 80% regardless
  37 #                               of the number of functions that reported low.
  38 #
  39 #                               Test programmes are built prior to execution. Plan-9 mk is
  40 #                               the preferred builder, but as it's not widly adopted (sigh)
  41 #                               make is assumed and -M will shift to Plan-9. Use -C xxx to
  42 #                               invoke a customised builder.
  43 #
  44 #                               For a module which does not pass, we will attempt to boost
  45 #                               the coverage by discounting the unexecuted lines which are
  46 #                               inside of if() statements that are checking return from
  47 #                               (m)alloc() calls or are checking for nil pointers as these
  48 #                               cases are likely impossible to drive. When discount testing
  49 #                               is done both the failure message from the original analysis
  50 #                               and a pass/fail message from the discount test are listed,
  51 #                               but only the result of the discount test is taken into
  52 #                               consideration with regard to overall success.
  53 #
  54 #                               Overall Pass/Fail
  55 #                               By default the overall state is based only on the success
  56 #                               or failure of the unit tests and NOT on the perceived
  57 #                               state of coverage.  If the -s (strict) option is given, then
  58 #                               overall state will be failure if code coverage expectations
  59 #                               are not met.
  60 #
  61 #       Date:           16 January 2018
  62 #       Author:         E. Scott Daniels
  63 # -------------------------------------------------------------------------
  64
  65 function usage {
  66         echo "usage: $0 [-G|-M|-C custom-command-string] [-a] [-c cov-target]  [-f] [-F] [-v] [-x]  [files]"
  67         echo "  if -C is used to provide a custom build command then it must "
  68         echo "  contain a %s which will be replaced with the unit test file name."
  69         echo '  e.g.:  -C "mk -a %s"'
  70         echo "  -a always run coverage (even on failed modules)"
  71         echo "  -c allows user to set the target coverage for a module to pass; default is 80"
  72         echo "  -f forces a discount check (normally done only if coverage < target)"
  73         echo "  -F show only failures at the function level"
  74         echo "  -s strict mode; code coverage must also pass to result in a good exit code"
  75         echo "  -v will write additional information to the tty and save the disccounted file if discount run or -f given"
  76         echo "  -x generates the coverage XML files for Sonar (implies -f)"
  77 }
  78
  79 # read through the given file and add any functions that are static to the
  80 # ignored list.  Only test and test tools files should be parsed.
  81 #
  82 function add_ignored_func {
  83         if [[ ! -r $1 ]]
  84         then
  85                 echo ">>>> can't find file to ignore: $1"
  86                 return
  87         fi
  88
  89         typeset f=""
  90         goop=$(
  91                 grep "^static.*(.*).*{" $1 | awk '              # get list of test functions to ignore
  92                         {
  93                                 gsub( "[(].*", "" )
  94                                 gsub( "[*]", "" )
  95                                 if( $2 == "struct" ) {                  # static struct goober function
  96                                         printf( "%s ", $4 )
  97                                 } else {
  98                                         printf( "%s ", $3 )                     # static goober-type funct
  99                                 }
 100                         }
 101                 ' )
 102
 103         iflist="$iflist $goop"                  # this goop hack because bash can't read from a loop
 104 }
 105
 106
 107 # Merge two coverage files to preserve the total lines covered by different
 108 # test programmes.
 109 #
 110 function merge_cov {
 111         if [[ -z $1 || -z $2 ]]
 112         then
 113                 return
 114         fi
 115
 116         if [[ ! -e $1 || ! -e $2 ]]
 117         then
 118                 return
 119         fi
 120
 121         (
 122                 cat $1
 123                 echo "==merge=="
 124                 cat $2
 125         ) | awk '
 126                 /^==merge==/ {
 127                         merge = 1
 128                         next
 129                 }
 130
 131                 merge && /#####:/ {
 132                         line = $2+0
 133                         if( executed[line] ) {
 134                                 $1 = sprintf( "%9d:", executed[line] )
 135                         }
 136                 }
 137
 138                 merge {
 139                         print
 140                         next
 141                 }
 142
 143                 {
 144                         line = $2+0
 145                         if( $1+0 > 0 ) {
 146                                 executed[line] = $1+0
 147                         }
 148                 }
 149         '
 150 }
 151
 152 #
 153 #       Parse the .gcov file and discount any unexecuted lines which are in if()
 154 #       blocks that are testing the result of alloc/malloc calls, or testing for
 155 #       nil pointers.  The feeling is that these might not be possible to drive
 156 #       and shoudn't contribute to coverage deficiencies.
 157 #
 158 #       In verbose mode, the .gcov file is written to stdout and any unexecuted
 159 #       line which is discounted is marked with ===== replacing the ##### marking
 160 #       that gcov wrote.
 161 #
 162 #       The return value is 0 for pass; non-zero for fail.
 163 function discount_an_checks {
 164         typeset f="$1"
 165
 166         mct=$( get_mct ${1%.gcov} )                     # see if a special coverage target is defined for this
 167
 168         if [[ ! -f $1 ]]
 169         then
 170                 if [[ -f ${1##*/} ]]
 171                 then
 172                         f=${1##*/}
 173                 else
 174                         echo "cant find: $f"
 175                         return
 176                 fi
 177         fi
 178
 179         awk -v module_cov_target=$mct \
 180                 -v cfail=${cfail:-WARN} \
 181                 -v show_all=$show_all \
 182                 -v full_name="${1}"  \
 183                 -v module="${f%.*}"  \
 184                 -v chatty=$chatty \
 185                 -v replace_flags=$replace_flags \
 186         '
 187         function spit_line( ) {
 188                 if( chatty ) {
 189                         printf( "%s\n", $0 )
 190                 }
 191         }
 192
 193         /-:/ {                          # skip unexecutable lines
 194                 spit_line()
 195                 seq++                                   # allow blank lines in a sequence group
 196                 next
 197         }
 198
 199         {
 200                 nexec++                 # number of executable lines
 201         }
 202
 203         /#####:/ {
 204                 unexec++;
 205                 if( $2+0 != seq+1 ) {
 206                         prev_malloc = 0
 207                         prev_if = 0
 208                         seq = 0
 209                         spit_line()
 210                         next
 211                 }
 212
 213                 if( prev_if && prev_malloc ) {
 214                         if( prev_malloc ) {
 215                                 #printf( "allow discount: %s\n", $0 )
 216                                 if( replace_flags ) {
 217                                         gsub( "#####", "    1", $0 )
 218                                         //gsub( "#####", "=====", $0 )
 219                                 }
 220                                 discount++;
 221                         }
 222                 }
 223
 224                 seq++;;
 225                 spit_line()
 226                 next;
 227         }
 228
 229         /if[(].*alloc.*{/ {                     # if( (x = malloc( ... )) != NULL ) or if( (p = sym_alloc(...)) != NULL )
 230                 seq = $2+0
 231                 prev_malloc = 1
 232                 prev_if = 1
 233                 spit_line()
 234                 next
 235         }
 236
 237         /if[(].* == NULL/ {                             # a nil check likely not easily forced if it wasnt driven
 238                 prev_malloc = 1
 239                 prev_if = 1
 240                 spit_line()
 241                 seq = $2+0
 242                 next
 243         }
 244
 245         /if[(]/ {
 246                 if( seq+1 == $2+0 && prev_malloc ) {            // malloc on previous line
 247                         prev_if = 1
 248                 } else {
 249                         prev_malloc = 0
 250                         prev_if = 0
 251                 }
 252                 spit_line()
 253                 next
 254         }
 255
 256         /alloc[(]/ {
 257                 seq = $2+0
 258                 prev_malloc = 1
 259                 spit_line()
 260                 next
 261         }
 262
 263         {
 264                 spit_line()
 265         }
 266
 267         END {
 268                 net = unexec - discount
 269                 orig_cov = ((nexec-unexec)/nexec)*100           # original coverage
 270                 adj_cov = ((nexec-net)/nexec)*100                       # coverage after discount
 271                 pass_fail = adj_cov < module_cov_target ? cfail : "PASS"
 272                 rc = adj_cov < module_cov_target ? 1 : 0
 273                 if( pass_fail == cfail || show_all ) {
 274                         if( chatty ) {
 275                                 printf( "[%s] %s executable=%d unexecuted=%d discounted=%d net_unex=%d  cov=%d%% ==> %d%%  target=%d%%\n",
 276                                         pass_fail, full_name ? full_name : module, nexec, unexec, discount, net, orig_cov, adj_cov, module_cov_target )
 277                         } else {
 278                                 printf( "[%s] %d%% (%d%%) %s\n", pass_fail, adj_cov, orig_cov, full_name ? full_name : module )
 279                         }
 280                 }
 281
 282                 exit( rc )
 283         }
 284         ' $f
 285 }
 286
 287 # Given a file name ($1) see if it is in the ./.targets file. If it is
 288 # return the coverage listed, else return (echo)  the default $module_cov_target
 289 #
 290 function get_mct {
 291         typeset v=$module_cov_target
 292
 293         if [[ -f ./.targets ]]
 294         then
 295                 grep "^$1 " ./.targets | head -1 | read stuff
 296                 tv="${stuff##* }"                                       # assume junk tv; ditch junk
 297         fi
 298
 299         echo ${tv:-$v}
 300 }
 301
 302 # Remove unneeded coverage files, then generate the xml files that can be given
 303 # to sonar.  gcov.xml is based on the "raw" coverage and dcov.xml is based on
 304 # the discounted coverage.
 305 #
 306 function mk_xml {
 307         rm -fr *_test.c.gcov test_*.c.gcov *_test.c.dcov test_*.c.dcov          # we don't report on the unit test code, so ditch
 308         cat *.gcov | cov2xml.ksh >gcov.xml
 309         cat *.dcov | cov2xml.ksh >dcov.xml
 310 }
 311
 312
 313 # -----------------------------------------------------------------------------------------------------------------
 314
 315 # we assume that the project has been built in the ../[.]build directory
 316 if [[ -d ../build ]]
 317 then
 318         export LD_LIBRARY_PATH=../build/lib:../build/lib64
 319         export C_INCLUDE_PATH=../build/include
 320 else
 321         if [[ -d ../.build ]]
 322         then
 323                 export LD_LIBRARY_PATH=../.build/lib:../.build/lib64
 324                 export C_INCLUDE_PATH=../.build/include
 325
 326         else
 327                 echo "[WARN] cannot find build directory (tried ../build and ../.build); things might not work"
 328                 echo ""
 329         fi
 330 fi
 331
 332 export LIBRARY_PATH=$LD_LIBRARY_PATH
 333
 334 # The Makefile sets specific includes for things
 335 #export C_INCLUDE_PATH="../src/rmr/common/include:../src/rmr/si/include:$C_INCLUDE_PATH"
 336
 337 module_cov_target=80
 338 builder="make -B %s"                                                    # default to plain ole make
 339 verbose=0
 340 show_all=1                                                                              # show all things -F sets to show failures only
 341 strict=0                                                                                # -s (strict) will set; when off, coverage state ignored in final pass/fail
 342 show_output=0                                                                   # show output from each test execution (-S)
 343 quiet=0
 344 gen_xml=0
 345 replace_flags=1                                                                 # replace ##### in gcov for discounted lines
 346 run_nano_tests=0
 347 always_gcov=0                                                                   # -a sets to always run gcov even if failure
 348 save_gcov=1                                                                             # -o turns this off
 349 out_dir=${UT_COVERAGE_DIR:-/tmp/rmr_gcov}               # -O changes output directory
 350
 351 export RMR_WARNING=1                                                    # turn on warnings
 352
 353 ulimit -c unlimited
 354
 355 while [[ $1 == "-"* ]]
 356 do
 357         case $1 in
 358                 -C)     builder="$2"; shift;;           # custom build command
 359                 -G)     builder="gmake %s";;
 360                 -M)     builder="mk -a %s";;            # use plan-9 mk (better, but sadly not widly used)
 361                 -N)     run_nano_tests=1;;
 362                 -O)     out_dir=$2; shift;;
 363
 364                 -a)     always_gcov=1;;
 365                 -c)     module_cov_target=$2; shift;;
 366                 -e)     capture_file=$2; >$capture_file; shift;;                # capture errors from failed tests rather than spewing on tty
 367                 -f)     force_discounting=1;
 368                         trigger_discount_str="WARN|FAIL|PASS"           # check all outcomes for each module
 369                         ;;
 370
 371                 -F)     show_all=0;;
 372
 373                 -n)     noexec=1;;
 374                 -o)     save_gcov=0;;
 375                 -s)     strict=1;;                                      # coverage counts toward pass/fail state
 376                 -S)     show_output=1;;                         # test output shown even on success
 377                 -v)     (( verbose++ ));;
 378                 -q)     quiet=1;;                                       # less chatty when spilling error log files
 379                 -x)     gen_xml=1
 380                         force_discounting=1
 381                         trigger_discount_str="WARN|FAIL|PASS"           # check all outcomes for each module
 382                         rm -fr *cov.xml
 383                         ;;
 384
 385
 386                 -h)     usage; exit 0;;
 387                 --help) usage; exit 0;;
 388                 -\?)    usage; exit 0;;
 389
 390                 *)      echo "unrecognised option: $1" >&2
 391                         usage >&2
 392                         exit 1
 393                         ;;
 394         esac
 395
 396         shift
 397 done
 398
 399
 400 if (( strict ))                 # if in strict mode, coverage shortcomings are failures
 401 then
 402         cfail="FAIL"
 403 else
 404         cfail="WARN"
 405 fi
 406 if [[ -z $trigger_discount_str ]]
 407 then
 408         trigger_discount_str="$cfail"
 409 fi
 410
 411
 412 if [[ -z $1 ]]
 413 then
 414         flist=""
 415         for tfile in *_test.c
 416         do
 417                 if [[ $tfile != *"static_test.c" ]]
 418                 then
 419                         if(( ! run_nano_tests )) && [[ $tfile == *"nano"* ]]
 420                         then
 421                                 continue
 422                         fi
 423
 424                         flist="${flist}$tfile "
 425                 fi
 426         done
 427 else
 428         flist="$@"
 429 fi
 430
 431
 432 if (( noexec ))
 433 then
 434         echo "no exec mode; would test these:"
 435         for tf in $flist
 436         do
 437                 echo "  $tf"
 438         done
 439         exit 0
 440 fi
 441
 442 rm -fr *.gcov                   # ditch the previous coverage files
 443 ut_errors=0                     # unit test errors (not coverage errors)
 444 errors=0
 445
 446 for tfile in $flist
 447 do
 448         for x in *.gcov
 449         do
 450                 if [[ -e $x ]]
 451                 then
 452                         cp $x $x-
 453                 fi
 454         done
 455
 456         (       # all noise is now captured into a tmp file to support quiet mode
 457                 echo "$tfile --------------------------------------"
 458                 bcmd=$( printf "$builder" "${tfile%.c}" )
 459                 if ! $bcmd >/tmp/PID$$.log 2>&1
 460                 then
 461                         echo "[FAIL] cannot build $tfile"
 462                         cat /tmp/PID$$.log
 463                         rm -f /tmp/PID$$
 464                         exit 1
 465                 fi
 466
 467                 iflist="main sig_clean_exit "           # ignore external functions from our tools
 468                 add_ignored_func $tfile                         # ignore all static functions in our test driver
 469                 add_ignored_func test_support.c         # ignore all static functions in our test tools
 470                 add_ignored_func test_nng_em.c          # the nng/nano emulated things
 471                 add_ignored_func test_si95_em.c         # the si emulated things
 472                 add_ignored_func test_common_em.c       # the common emulation functions
 473                 for f in *_static_test.c                        # all static modules here
 474                 do
 475                         if(( ! run_nano_tests )) && [[ $f == *"nano"* ]]
 476                         then
 477                                 continue
 478                         fi
 479
 480                         add_ignored_func $f
 481                 done
 482
 483                 if ! ./${tfile%.c} >/tmp/PID$$.log 2>&1
 484                 then
 485                         echo "[FAIL] unit test failed for: $tfile"
 486                         if [[ -n $capture_file ]]
 487                         then
 488                                 echo "all errors captured in $capture_file, listing only fail message on tty"
 489                                 echo "$tfile --------------------------------------" >>$capture_file
 490                                 cat /tmp/PID$$.log >>$capture_file
 491                                 grep "^<FAIL>" /tmp/PID$$.log
 492                                 echo ""
 493                         else
 494                                 if (( quiet ))
 495                                 then
 496                                         grep "^<" /tmp/PID$$.log|grep -v "^<EM>"        # in quiet mode just dump <...> messages which are assumed from the test programme not appl
 497                                 else
 498                                         cat /tmp/PID$$.log
 499                                 fi
 500                         fi
 501                         (( ut_errors++ ))                               # cause failure even if not in strict mode
 502                         if (( ! always_gcov ))
 503                         then
 504                                 continue                                                # skip coverage tests for this
 505                         fi
 506                 else
 507                         if (( show_output ))
 508                         then
 509                                 printf "\n============= test programme output =======================\n"
 510                                 cat /tmp/PID$$.log
 511                                 printf "===========================================================\n"
 512                         fi
 513                 fi
 514
 515                 (
 516                         touch ./.targets
 517                         sed '/^#/ d; /^$/ d; s/^/TARGET: /' ./.targets
 518                         gcov -f ${tfile%.c} | sed "s/'//g"
 519                 ) | awk \
 520                         -v cfail=$cfail \
 521                         -v show_all=$show_all \
 522                         -v ignore_list="$iflist" \
 523                         -v module_cov_target=$module_cov_target \
 524                         -v chatty=$verbose \
 525                         '
 526                         BEGIN {
 527                                 announce_target = 1;
 528                                 nignore = split( ignore_list, ignore, " " )
 529                                 for( i = 1; i <= nignore; i++ ) {
 530                                         imap[ignore[i]] = 1
 531                                 }
 532
 533                                 exit_code = 0           # assume good
 534                         }
 535
 536                         /^TARGET:/ {
 537                                 if( NF > 1 ) {
 538                                         target[$2] = $NF
 539                                 }
 540                                 next;
 541                         }
 542
 543                         /File.*_test/ || /File.*test_/ {                # dont report on test files
 544                                 skip = 1
 545                                 file = 1
 546                                 fname = $2
 547                                 next
 548                         }
 549
 550                         /File/ {
 551                                 skip = 0
 552                                 file = 1
 553                                 fname = $2
 554                                 next
 555                         }
 556
 557                         /Function/ {
 558                                 fname = $2
 559                                 file = 0
 560                                 if( imap[fname] ) {
 561                                         fname = "skipped: " fname               # should never see and make it smell if we do
 562                                         skip = 1
 563                                 } else {
 564                                         skip = 0
 565                                 }
 566                                 next
 567                         }
 568
 569                         skip { next }
 570
 571                         /Lines executed/ {
 572                                 split( $0, a, ":" )
 573                                 pct = a[2]+0
 574
 575                                 if( file ) {
 576                                         if( announce_target ) {                         # announce default once at start
 577                                                 announce_target = 0;
 578                                                 printf( "\n[INFO] default target coverage for modules is %d%%\n", module_cov_target )
 579                                         }
 580
 581                                         if( target[fname] ) {
 582                                                 mct = target[fname]
 583                                                 announce_target = 1;
 584                                         } else {
 585                                                 mct = module_cov_target
 586                                         }
 587
 588                                         if( announce_target ) {                                 # annoucne for module if different from default
 589                                                 printf( "[INFO] target coverage for %s is %d%%\n", fname, mct )
 590                                         }
 591
 592                                         if( pct < mct ) {
 593                                                 printf( "[%s] %3d%% %s\n", cfail, pct, fname )  # CAUTION: write only 3 things  here
 594                                                 exit_code = 1
 595                                         } else {
 596                                                 printf( "[PASS] %3d%% %s\n", pct, fname )
 597                                         }
 598
 599                                         announce_target = 0;
 600                                 } else {
 601                                         if( pct < 70 ) {
 602                                                 printf( "[LOW]  %3d%% %s\n", pct, fname )
 603                                         } else {
 604                                                 if( pct < 80 ) {
 605                                                         printf( "[MARG] %3d%% %s\n", pct, fname )
 606                                                 } else {
 607                                                         if( show_all ) {
 608                                                                 printf( "[OK]   %3d%% %s\n", pct, fname )
 609                                                         }
 610                                                 }
 611                                         }
 612                                 }
 613
 614                         }
 615
 616                         END {
 617                                 printf( "\n" );
 618                                 exit( exit_code )
 619                         }
 620                 ' >/tmp/PID$$.log                                       # capture output to run discount on failures
 621                 rc=$?
 622                 cat /tmp/PID$$.log
 623
 624                 if (( rc  || force_discounting ))       # didn't pass, or forcing, see if discounting helps
 625                 then
 626                         if (( ! verbose ))
 627                         then
 628                                 echo "[INFO] checking to see if discounting improves coverage for failures listed above"
 629                         fi
 630
 631                         # preferred, but breaks under bash
 632                         #egrep "$trigger_discount_str"  /tmp/PID$$.log | while read state junk  name
 633                         egrep "$trigger_discount_str"  /tmp/PID$$.log | while read stuff
 634                         do
 635                                 set stuff                       # this hack required because bash cant read into mult vars
 636                                 state="$1"
 637                                 name="$3"
 638
 639                                 if ! discount_an_checks $name.gcov >/tmp/PID$$.disc
 640                                 then
 641                                         (( errors++ ))
 642                                 fi
 643
 644                                 tail -1 /tmp/PID$$.disc | grep '\['
 645
 646                                 if (( verbose > 1 ))                    # updated file was generated, keep here
 647                                 then
 648                                         echo "[INFO] discounted coverage info in: ${tfile##*/}.dcov"
 649                                 fi
 650
 651                                 mv /tmp/PID$$.disc ${name##*/}.dcov
 652                         done
 653                 fi
 654         )>/tmp/PID$$.noise 2>&1
 655
 656         for x in *.gcov                                                 # merge any previous coverage file with this one
 657         do
 658                 if [[ -e $x && -e $x- ]]
 659                 then
 660                         merge_cov $x $x- >/tmp/PID$$.mc
 661                         cp /tmp/PID$$.mc $x
 662                         rm $x-
 663                 fi
 664         done
 665
 666         if (( ! quiet ))
 667         then
 668                 cat /tmp/PID$$.noise
 669         fi
 670 done
 671
 672 echo ""
 673 echo "[INFO] final discount checks on merged gcov files"
 674 show_all=1
 675 for xx in *.gcov
 676 do
 677         if [[ $xx != *"test"* ]]
 678         then
 679                 of=${xx%.gcov}.dcov
 680                 discount_an_checks $xx  >$of
 681                 if [[ -n $of ]]
 682                 then
 683                         tail -1 $of |  grep '\['
 684                 fi
 685         fi
 686 done
 687
 688 if (( save_gcov ))
 689 then
 690         echo ""
 691         ok=1
 692         if [[ ! -d $outdir ]]
 693         then
 694                 if ! mkdir -p $out_dir
 695                 then
 696                         echo "[WARN] unable to save .gcov files in $out_dir"
 697                         ok=0
 698                 fi
 699         fi
 700
 701         if (( ok ))
 702         then
 703                 rm -fr $out_dir/*
 704                 echo "[INFO] gcov files saved in $out_dir for push to remote system(s)"
 705                 cp *.gcov $out_dir/
 706                 rm -f $out_dir/*_test.c.gcov $out_dir/test_*.c.gcov
 707                 rm -f ./*_test.c.gcov ./test_*.c.gcov
 708         fi
 709 else
 710         echo "[INFO] .gcov files were not saved for remote system"
 711 fi
 712
 713 state=0                                         # final state
 714 rm -f /tmp/PID$$.*
 715 if (( strict ))                         # fail if some coverage failed too
 716 then
 717         if (( errors + ut_errors ))
 718         then
 719                 state=1
 720         fi
 721 else                                            # not strict; fail only if unit tests themselves failed
 722         if (( ut_errors ))
 723         then
 724                 state=1
 725         fi
 726 fi
 727
 728 echo""
 729 if (( state ))
 730 then
 731         echo "[FAIL] overall unit testing fails: coverage errors=$errors   unit test errors=$ut_errors"
 732 else
 733         echo "[PASS] overall unit testing passes"
 734         if (( gen_xml ))
 735         then
 736                 mk_xml
 737         fi
 738 fi
 739
 740 exit $state
 741