app/test/autotest_runner.py

   1 #!/usr/bin/python
   2
   3 #   BSD LICENSE
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  33 #
  34
  35 # The main logic behind running autotests in parallel
  36
  37 import multiprocessing, sys, pexpect, time, os, StringIO, csv
  38
  39 # wait for prompt
  40 def wait_prompt(child):
  41         try:
  42                 child.sendline()
  43                 result = child.expect(["RTE>>", pexpect.TIMEOUT, pexpect.EOF],
  44                         timeout = 120)
  45         except:
  46                 return False
  47         if result == 0:
  48                 return True
  49         else:
  50                 return False
  51
  52 # run a test group
  53 # each result tuple in results list consists of:
  54 #   result value (0 or -1)
  55 #   result string
  56 #   test name
  57 #   total test run time (double)
  58 #   raw test log
  59 #   test report (if not available, should be None)
  60 #
  61 # this function needs to be outside AutotestRunner class
  62 # because otherwise Pool won't work (or rather it will require
  63 # quite a bit of effort to make it work).
  64 def run_test_group(cmdline, test_group):
  65         results = []
  66         child = None
  67         start_time = time.time()
  68         startuplog = None
  69
  70         # run test app
  71         try:
  72                 # prepare logging of init
  73                 startuplog = StringIO.StringIO()
  74
  75                 print >>startuplog, "\n%s %s\n" % ("="*20, test_group["Prefix"])
  76
  77                 child = pexpect.spawn(cmdline, logfile=startuplog)
  78
  79                 # wait for target to boot
  80                 if not wait_prompt(child):
  81                         child.close()
  82
  83                         results.append((-1, "Fail [No prompt]", "Start %s" % test_group["Prefix"],
  84                                 time.time() - start_time, startuplog.getvalue(), None))
  85
  86                         # mark all tests as failed
  87                         for test in test_group["Tests"]:
  88                                 results.append((-1, "Fail [No prompt]", test["Name"],
  89                                 time.time() - start_time, "", None))
  90                         # exit test
  91                         return results
  92
  93         except:
  94                 results.append((-1, "Fail [Can't run]", "Start %s" % test_group["Prefix"],
  95                                 time.time() - start_time, startuplog.getvalue(), None))
  96
  97                 # mark all tests as failed
  98                 for t in test_group["Tests"]:
  99                         results.append((-1, "Fail [Can't run]", t["Name"],
 100                                 time.time() - start_time, "", None))
 101                 # exit test
 102                 return results
 103
 104         # startup was successful
 105         results.append((0, "Success", "Start %s" % test_group["Prefix"],
 106                 time.time() - start_time, startuplog.getvalue(), None))
 107
 108         # run all tests in test group
 109         for test in test_group["Tests"]:
 110
 111                 # create log buffer for each test
 112                 # in multiprocessing environment, the logging would be
 113                 # interleaved and will create a mess, hence the buffering
 114                 logfile = StringIO.StringIO()
 115                 child.logfile = logfile
 116
 117                 result = ()
 118
 119                 # make a note when the test started
 120                 start_time = time.time()
 121
 122                 try:
 123                         # print test name to log buffer
 124                         print >>logfile, "\n%s %s\n" % ("-"*20, test["Name"])
 125
 126                         # run test function associated with the test
 127                         result = test["Func"](child, test["Command"])
 128
 129                         # make a note when the test was finished
 130                         end_time = time.time()
 131
 132                         # append test data to the result tuple
 133                         result += (test["Name"], end_time - start_time,
 134                                 logfile.getvalue())
 135
 136                         # call report function, if any defined, and supply it with
 137                         # target and complete log for test run
 138                         if test["Report"]:
 139                                 report = test["Report"](self.target, log)
 140
 141                                 # append report to results tuple
 142                                 result += (report,)
 143                         else:
 144                                 # report is None
 145                                 result += (None,)
 146                 except:
 147                         # make a note when the test crashed
 148                         end_time = time.time()
 149
 150                         # mark test as failed
 151                         result = (-1, "Fail [Crash]", test["Name"],
 152                                 end_time - start_time, logfile.getvalue(), None)
 153                 finally:
 154                         # append the results to the results list
 155                         results.append(result)
 156
 157         # regardless of whether test has crashed, try quitting it
 158         try:
 159                 child.sendline("quit")
 160                 child.close()
 161         # if the test crashed, just do nothing instead
 162         except:
 163                 # nop
 164                 pass
 165
 166         # return test results
 167         return results
 168
 169
 170
 171
 172
 173 # class representing an instance of autotests run
 174 class AutotestRunner:
 175         cmdline = ""
 176         parallel_test_groups = []
 177         non_parallel_test_groups = []
 178         logfile = None
 179         csvwriter = None
 180         target = ""
 181         start = None
 182         n_tests = 0
 183         fails = 0
 184         log_buffers = []
 185         blacklist = []
 186         whitelist = []
 187
 188
 189         def __init__(self, cmdline, target, blacklist, whitelist):
 190                 self.cmdline = cmdline
 191                 self.target = target
 192                 self.blacklist = blacklist
 193                 self.whitelist = whitelist
 194
 195                 # log file filename
 196                 logfile = "%s.log" % target
 197                 csvfile = "%s.csv" % target
 198
 199                 self.logfile = open(logfile, "w")
 200                 csvfile = open(csvfile, "w")
 201                 self.csvwriter = csv.writer(csvfile)
 202
 203                 # prepare results table
 204                 self.csvwriter.writerow(["test_name","test_result","result_str"])
 205
 206
 207
 208         # set up cmdline string
 209         def __get_cmdline(self, test):
 210                 cmdline = self.cmdline
 211
 212                 # perform additional linuxapp adjustments
 213                 if not "baremetal" in self.target:
 214
 215                         # append memory limitations for each test
 216                         # otherwise tests won't run in parallel
 217                         if not "i686" in self.target:
 218                                 cmdline += " --socket-mem=%s"% test["Memory"]
 219                         else:
 220                                 # affinitize startup so that tests don't fail on i686
 221                                 cmdline = "taskset 1 " + cmdline
 222                                 cmdline += " -m " + str(sum(map(int,test["Memory"].split(","))))
 223
 224                         # set group prefix for autotest group
 225                         # otherwise they won't run in parallel
 226                         cmdline += " --file-prefix=%s"% test["Prefix"]
 227
 228                         return cmdline
 229                 return cmdline
 230
 231
 232
 233         def add_parallel_test_group(self,test_group):
 234                 self.parallel_test_groups.append(test_group)
 235
 236         def add_non_parallel_test_group(self,test_group):
 237                 self.non_parallel_test_groups.append(test_group)
 238
 239
 240         def __process_results(self, results):
 241                 # this iterates over individual test results
 242                 for i, result in enumerate(results):
 243
 244                         # increase total number of tests that were run
 245                         # do not include "start" test
 246                         if i > 0:
 247                                 self.n_tests += 1
 248
 249                         # unpack result tuple
 250                         test_result, result_str, test_name, \
 251                                 test_time, log, report = result
 252
 253                         # get total run time
 254                         cur_time = time.time()
 255                         total_time = int(cur_time - self.start)
 256
 257                         # print results, test run time and total time since start
 258                         print ("%s:" % test_name).ljust(30),
 259                         print result_str.ljust(29),
 260                         print "[%02dm %02ds]" % (test_time / 60, test_time % 60),
 261
 262                         # don't print out total time every line, it's the same anyway
 263                         if i == len(results) - 1:
 264                                 print "[%02dm %02ds]" % (total_time / 60, total_time % 60)
 265                         else:
 266                                 print ""
 267
 268                         # if test failed and it wasn't a "start" test
 269                         if test_result < 0 and not i == 0:
 270                                 self.fails += 1
 271
 272                         # collect logs
 273                         self.log_buffers.append(log)
 274
 275                         # create report if it exists
 276                         if report:
 277                                 try:
 278                                         f = open("%s_%s_report.rst" % (self.target,test_name), "w")
 279                                 except IOError:
 280                                         print "Report for %s could not be created!" % test_name
 281                                 else:
 282                                         with f:
 283                                                 f.write(report)
 284
 285                         # write test result to CSV file
 286                         if i != 0:
 287                                 self.csvwriter.writerow([test_name, test_result, result_str])
 288
 289
 290
 291
 292         # this function iterates over test groups and removes each
 293         # test that is not in whitelist/blacklist
 294         def __filter_groups(self, test_groups):
 295                 groups_to_remove = []
 296
 297                 # filter out tests from parallel test groups
 298                 for i, test_group in enumerate(test_groups):
 299
 300                         # iterate over a copy so that we could safely delete individual tests
 301                         for test in test_group["Tests"][:]:
 302                                 test_id = test["Command"]
 303
 304                                 # dump tests are specified in full e.g. "Dump_mempool"
 305                                 if "_autotest" in test_id:
 306                                         test_id = test_id[:-len("_autotest")]
 307
 308                                 # filter out blacklisted/whitelisted tests
 309                                 if self.blacklist and test_id in self.blacklist:
 310                                         test_group["Tests"].remove(test)
 311                                         continue
 312                                 if self.whitelist and test_id not in self.whitelist:
 313                                         test_group["Tests"].remove(test)
 314                                         continue
 315
 316                         # modify or remove original group
 317                         if len(test_group["Tests"]) > 0:
 318                                 test_groups[i] = test_group
 319                         else:
 320                                 # remember which groups should be deleted
 321                                 # put the numbers backwards so that we start
 322                                 # deleting from the end, not from the beginning
 323                                 groups_to_remove.insert(0, i)
 324
 325                 # remove test groups that need to be removed
 326                 for i in groups_to_remove:
 327                         del test_groups[i]
 328
 329                 return test_groups
 330
 331
 332
 333         # iterate over test groups and run tests associated with them
 334         def run_all_tests(self):
 335                 # filter groups
 336                 self.parallel_test_groups = \
 337                         self.__filter_groups(self.parallel_test_groups)
 338                 self.non_parallel_test_groups = \
 339                         self.__filter_groups(self.non_parallel_test_groups)
 340
 341                 # create a pool of worker threads
 342                 if not "baremetal" in self.target:
 343                         pool = multiprocessing.Pool(processes=4)
 344                 else:
 345                         # we can't be sure running baremetal tests in parallel
 346                         # will work, so let's stay on the safe side
 347                         pool = multiprocessing.Pool(processes=1)
 348
 349                 results = []
 350
 351                 # whatever happens, try to save as much logs as possible
 352                 try:
 353
 354                         # create table header
 355                         print ""
 356                         print "Test name".ljust(30),
 357                         print "Test result".ljust(29),
 358                         print "Test".center(9),
 359                         print "Total".center(9)
 360                         print "=" * 80
 361
 362                         # make a note of tests start time
 363                         self.start = time.time()
 364
 365                         # assign worker threads to run test groups
 366                         for test_group in self.parallel_test_groups:
 367                                 result = pool.apply_async(run_test_group,
 368                                         [self.__get_cmdline(test_group), test_group])
 369                                 results.append(result)
 370
 371                         # iterate while we have group execution results to get
 372                         while len(results) > 0:
 373
 374                                 # iterate over a copy to be able to safely delete results
 375                                 # this iterates over a list of group results
 376                                 for group_result in results[:]:
 377
 378                                         # if the thread hasn't finished yet, continue
 379                                         if not group_result.ready():
 380                                                 continue
 381
 382                                         res = group_result.get()
 383
 384                                         self.__process_results(res)
 385
 386                                         # remove result from results list once we're done with it
 387                                         results.remove(group_result)
 388
 389                         # run non_parallel tests. they are run one by one, synchronously
 390                         for test_group in self.non_parallel_test_groups:
 391                                 group_result = run_test_group(self.__get_cmdline(test_group), test_group)
 392
 393                                 self.__process_results(group_result)
 394
 395                         # get total run time
 396                         cur_time = time.time()
 397                         total_time = int(cur_time - self.start)
 398
 399                         # print out summary
 400                         print "=" * 80
 401                         print "Total run time: %02dm %02ds" % (total_time / 60, total_time % 60)
 402                         if self.fails != 0:
 403                                 print "Number of failed tests: %s" % str(self.fails)
 404
 405                         # write summary to logfile
 406                         self.logfile.write("Summary\n")
 407                         self.logfile.write("Target: ".ljust(15) + "%s\n" % self.target)
 408                         self.logfile.write("Tests: ".ljust(15) + "%i\n" % self.n_tests)
 409                         self.logfile.write("Failed tests: ".ljust(15) + "%i\n" % self.fails)
 410                 except:
 411                         print "Exception occured"
 412                         print sys.exc_info()
 413
 414                 # drop logs from all executions to a logfile
 415                 for buf in self.log_buffers:
 416                         self.logfile.write(buf.replace("\r",""))
 417
 418                 log_buffers = []
 419