source: tests/test.py @ c274df2

#!/usr/bin/python3

from pybin.tools import *
from pybin.test_run import *
from pybin import settings

import argparse
import re
import sys
import time

################################################################################
#               help functions
################################################################################

def find_tests():
        expected = []

        def match_test(path):
                match = re.search("^%s\/([\w\/\-_]*).expect\/([\w\-_]+)(\.[\w\-_]+)?\.txt$" % settings.SRCDIR, path)
                if match :
                        test = Test()
                        test.name = match.group(2)
                        test.path = match.group(1)
                        test.arch = match.group(3)[1:] if match.group(3) else None
                        if settings.arch.match(test.arch):
                                expected.append(test)

        path_walk( match_test )

        return expected

# reads the directory ./.expect and indentifies the tests
def list_tests( includes, excludes ):
        # tests directly in the .expect folder will always be processed
        test_list = find_tests()

        # if we have a limited number of includes, filter by them
        if includes:
                test_list = [x for x in test_list if
                        x.target().startswith( tuple(includes) )
                ]

        # # if we have a folders to excludes, filter by them
        if excludes:
                test_list = [x for x in test_list if not
                        x.target().startswith( tuple(excludes) )
                ]

        return test_list

# from the found tests, filter all the valid tests/desired tests
def valid_tests( options ):
        tests = []

        # if we are regenerating the tests we need to find the information of the
        # already existing tests and create new info for the new tests
        if options.regenerate_expected :
                for testname in options.tests :
                        testname = canonical_path( testname )
                        if Test.valid_name(testname):
                                found = [test for test in all_tests if canonical_path( test.target() ) == testname]
                                tests.append( found[0] if len(found) == 1 else Test.from_target(testname) )
                        else :
                                print('ERROR: "%s", tests are not allowed to end with a C/C++/CFA extension, ignoring it' % testname, file=sys.stderr)

        else :
                # otherwise we only need to validate that all tests are present in the complete list
                for testname in options.tests:
                        test = [t for t in all_tests if path_cmp( t.target(), testname )]

                        if test :
                                tests.append( test[0] )
                        else :
                                print('ERROR: No expected file for test %s, ignoring it' % testname, file=sys.stderr)

        return tests

# parses the option
def parse_args():
        # create a parser with the arguments for the tests script
        parser = argparse.ArgumentParser(description='Script which runs cforall tests')
        parser.add_argument('--debug', help='Run all tests in debug or release', type=yes_no, default='yes')
        parser.add_argument('--install', help='Run all tests based on installed binaries or tree binaries', type=yes_no, default='no')
        parser.add_argument('--arch', help='Test for specific architecture', type=str, default='')
        parser.add_argument('--timeout', help='Maximum duration in seconds after a single test is considered to have timed out', type=int, default=60)
        parser.add_argument('--global-timeout', help='Maximum cumulative duration in seconds after the ALL tests are considered to have timed out', type=int, default=7200)
        parser.add_argument('--dry-run', help='Don\'t run the tests, only output the commands', action='store_true')
        parser.add_argument('--list', help='List all test available', action='store_true')
        parser.add_argument('--all', help='Run all test available', action='store_true')
        parser.add_argument('--regenerate-expected', help='Regenerate the .expect by running the specified tets, can be used with --all option', action='store_true')
        parser.add_argument('-j', '--jobs', help='Number of tests to run simultaneously', type=int)
        parser.add_argument('--list-comp', help='List all valide arguments', action='store_true')
        parser.add_argument('-I','--include', help='Directory of test to include, can be used multiple time, All  if omitted', action='append')
        parser.add_argument('-E','--exclude', help='Directory of test to exclude, can be used multiple time, None if omitted', action='append')
        parser.add_argument('tests', metavar='test', type=str, nargs='*', help='a list of tests to run')

        try:
                options =  parser.parse_args()
        except:
                print('ERROR: invalid arguments', file=sys.stderr)
                parser.print_help(sys.stderr)
                sys.exit(1)

        # script must have at least some tests to run or be listing
        listing    = options.list or options.list_comp
        all_tests  = options.all
        some_tests = len(options.tests) > 0
        some_dirs  = len(options.include) > 0 if options.include else 0

        # check that exactly one of the booleans is set to true
        if not sum( (listing, all_tests, some_tests, some_dirs) ) > 0 :
                print('''ERROR: must have option '--all', '--list', '--include', '-I' or non-empty test list''', file=sys.stderr)
                parser.print_help()
                sys.exit(1)

        return options

################################################################################
#               running test functions
################################################################################
def success(val):
        return val == 0 or settings.dry_run

def no_rule(file, target):
        return not settings.dry_run and file_contains_only(file, "make: *** No rule to make target `%s'.  Stop." % target)

# logic to run a single test and return the result (No handling of printing or other test framework logic)
def run_single_test(test):

        # find the output file based on the test name and options flag
        exe_file = test.target_executable();
        out_file = test.target_output()
        err_file = test.error_log()
        cmp_file = test.expect()
        in_file  = test.input()

        # prepare the proper directories
        test.prepare()

        # build, skipping to next test on error
        with Timed() as comp_dur:
                make_ret, _ = make( test.target(),      redirects  = ("2> %s 1> /dev/null" % out_file), error_file = err_file )

        # if the make command succeds continue otherwise skip to diff
        run_dur = None
        if success(make_ret):
                with Timed() as run_dur:
                        if settings.dry_run or is_exe(exe_file):
                                # run test
                                retcode, _ = sh(exe_file, output=out_file, input=in_file, timeout=True)
                        else :
                                # simply cat the result into the output
                                retcode = cat(exe_file, out_file)
        else:
                retcode = mv(err_file, out_file)

        if success(retcode):
                if settings.generating :
                        # if we are ounly generating the output we still need to check that the test actually exists
                        if no_rule(out_file, test.target()) :
                                retcode = 1
                                error = "\t\tNo make target for test %s!" % test.target()
                                rm(out_file)
                        else:
                                error = None
                else :
                        # fetch return code and error from the diff command
                        retcode, error = diff(cmp_file, out_file)

        else:
                with open (out_file, "r") as myfile:
                        error = myfile.read()

                ret, info = core_info(exe_file)
                error = error + info



        # clean the executable
        rm(exe_file)

        return retcode, error, [comp_dur.duration, run_dur.duration if run_dur else None]

# run a single test and handle the errors, outputs, printing, exception handling, etc.
def run_test_worker(t) :
        try :
                # print formated name
                name_txt = '{0:{width}}  '.format(t.target(), width=settings.output_width)

                retcode, error, duration = run_single_test(t)

                # update output based on current action
                result_txt = TestResult.toString( retcode, duration )

                #print result with error if needed
                text = name_txt + result_txt
                out = sys.stdout
                if error :
                        text = text + "\n" + error
                        out = sys.stderr

                print(text, file = out)
                sys.stdout.flush()
                sys.stderr.flush()

                return retcode != TestResult.SUCCESS
        except KeyboardInterrupt:
                False

# run the given list of tests with the given parameters
def run_tests(tests, jobs) :
        # clean the sandbox from previous commands
        make('clean', redirects = '> /dev/null 2>&1')

        # create the executor for our jobs and handle the signal properly
        pool = multiprocessing.Pool(jobs)

        # for each test to run
        try :
                results = pool.map_async(
                        run_test_worker,
                        tests,
                        chunksize = 1
                ).get(settings.timeout.total)
        except KeyboardInterrupt:
                pool.terminate()
                print("Tests interrupted by user")
                sys.exit(1)

        # clean the workspace
        make('clean', redirects = '> /dev/null 2>&1')

        for failed in results:
                if failed :
                        return 1

        return 0


################################################################################
#               main loop
################################################################################
if __name__ == "__main__":

        # parse the command line arguments
        options = parse_args()

        # init global settings
        settings.init( options )

        # fetch the liest of all valid tests
        all_tests = list_tests( options.include, options.exclude )


        # if user wants all tests than no other treatement of the test list is required
        if options.all or options.list or options.list_comp or options.include :
                tests = all_tests

        #otherwise we need to validate that the test list that was entered is valid
        else :
                tests = valid_tests( options )

        # make sure we have at least some test to run
        if not tests :
                print('ERROR: No valid test to run', file=sys.stderr)
                sys.exit(1)


        # sort the test alphabetically for convenience
        tests.sort(key=lambda t: (t.arch if t.arch else '') + t.target())

        # users may want to simply list the tests
        if options.list_comp :
                print("-h --help --debug --dry-run --list --arch --all --regenerate-expected --install --timeout --global-timeout -j --jobs ", end='')
                print(" ".join(map(lambda t: "%s" % (t.target()), tests)))

        elif options.list :
                print("Listing for %s:%s"% (settings.arch.string, settings.debug.string))
                fancy_print("\n".join(map(lambda t: t.toString(), tests)))

        else :
                # check the build configuration works
                settings.prep_output(tests)
                settings.validate()

                options.jobs, forceJobs = job_count( options, tests )
                settings.update_make_cmd(forceJobs, options.jobs)

                print('%s (%s:%s) on %i cores' % (
                        'Regenerate tests' if settings.generating else 'Running',
                        settings.arch.string,
                        settings.debug.string,
                        options.jobs
                ))

                # otherwise run all tests and make sure to return the correct error code
                sys.exit( run_tests(tests, options.jobs) )