716 lines
24 KiB
Python
716 lines
24 KiB
Python
import datetime
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import faulthandler
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import locale
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import os
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import platform
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import random
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import re
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import sys
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import sysconfig
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import tempfile
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import time
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import unittest
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from test.libregrtest.cmdline import _parse_args
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from test.libregrtest.runtest import (
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findtests, runtest, get_abs_module,
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STDTESTS, NOTTESTS, PASSED, FAILED, ENV_CHANGED, SKIPPED, RESOURCE_DENIED,
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INTERRUPTED, CHILD_ERROR, TEST_DID_NOT_RUN, TIMEOUT,
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PROGRESS_MIN_TIME, format_test_result, is_failed)
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from test.libregrtest.setup import setup_tests
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from test.libregrtest.pgo import setup_pgo_tests
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from test.libregrtest.utils import removepy, count, format_duration, printlist
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from test import support
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# bpo-38203: Maximum delay in seconds to exit Python (call Py_Finalize()).
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# Used to protect against threading._shutdown() hang.
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# Must be smaller than buildbot "1200 seconds without output" limit.
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EXIT_TIMEOUT = 120.0
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class Regrtest:
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"""Execute a test suite.
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This also parses command-line options and modifies its behavior
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accordingly.
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tests -- a list of strings containing test names (optional)
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testdir -- the directory in which to look for tests (optional)
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Users other than the Python test suite will certainly want to
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specify testdir; if it's omitted, the directory containing the
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Python test suite is searched for.
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If the tests argument is omitted, the tests listed on the
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command-line will be used. If that's empty, too, then all *.py
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files beginning with test_ will be used.
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The other default arguments (verbose, quiet, exclude,
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single, randomize, findleaks, use_resources, trace, coverdir,
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print_slow, and random_seed) allow programmers calling main()
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directly to set the values that would normally be set by flags
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on the command line.
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"""
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def __init__(self):
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# Namespace of command line options
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self.ns = None
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# tests
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self.tests = []
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self.selected = []
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# test results
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self.good = []
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self.bad = []
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self.skipped = []
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self.resource_denieds = []
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self.environment_changed = []
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self.run_no_tests = []
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self.rerun = []
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self.first_result = None
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self.interrupted = False
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# used by --slow
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self.test_times = []
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# used by --coverage, trace.Trace instance
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self.tracer = None
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# used to display the progress bar "[ 3/100]"
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self.start_time = time.monotonic()
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self.test_count = ''
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self.test_count_width = 1
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# used by --single
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self.next_single_test = None
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self.next_single_filename = None
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# used by --junit-xml
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self.testsuite_xml = None
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# misc
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self.win_load_tracker = None
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self.tmp_dir = None
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self.worker_test_name = None
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def get_executed(self):
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return (set(self.good) | set(self.bad) | set(self.skipped)
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| set(self.resource_denieds) | set(self.environment_changed)
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| set(self.run_no_tests))
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def accumulate_result(self, result, rerun=False):
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test_name = result.test_name
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ok = result.result
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if ok not in (CHILD_ERROR, INTERRUPTED) and not rerun:
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self.test_times.append((result.test_time, test_name))
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if ok == PASSED:
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self.good.append(test_name)
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elif ok in (FAILED, CHILD_ERROR):
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if not rerun:
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self.bad.append(test_name)
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elif ok == ENV_CHANGED:
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self.environment_changed.append(test_name)
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elif ok == SKIPPED:
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self.skipped.append(test_name)
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elif ok == RESOURCE_DENIED:
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self.skipped.append(test_name)
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self.resource_denieds.append(test_name)
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elif ok == TEST_DID_NOT_RUN:
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self.run_no_tests.append(test_name)
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elif ok == INTERRUPTED:
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self.interrupted = True
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elif ok == TIMEOUT:
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self.bad.append(test_name)
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else:
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raise ValueError("invalid test result: %r" % ok)
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if rerun and ok not in {FAILED, CHILD_ERROR, INTERRUPTED}:
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self.bad.remove(test_name)
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xml_data = result.xml_data
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if xml_data:
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import xml.etree.ElementTree as ET
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for e in xml_data:
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try:
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self.testsuite_xml.append(ET.fromstring(e))
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except ET.ParseError:
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print(xml_data, file=sys.__stderr__)
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raise
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def log(self, line=''):
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empty = not line
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# add the system load prefix: "load avg: 1.80 "
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load_avg = self.getloadavg()
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if load_avg is not None:
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line = f"load avg: {load_avg:.2f} {line}"
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# add the timestamp prefix: "0:01:05 "
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test_time = time.monotonic() - self.start_time
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test_time = datetime.timedelta(seconds=int(test_time))
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line = f"{test_time} {line}"
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if empty:
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line = line[:-1]
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print(line, flush=True)
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def display_progress(self, test_index, text):
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if self.ns.quiet:
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return
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# "[ 51/405/1] test_tcl passed"
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line = f"{test_index:{self.test_count_width}}{self.test_count}"
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fails = len(self.bad) + len(self.environment_changed)
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if fails and not self.ns.pgo:
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line = f"{line}/{fails}"
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self.log(f"[{line}] {text}")
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def parse_args(self, kwargs):
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ns = _parse_args(sys.argv[1:], **kwargs)
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if ns.xmlpath:
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support.junit_xml_list = self.testsuite_xml = []
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worker_args = ns.worker_args
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if worker_args is not None:
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from test.libregrtest.runtest_mp import parse_worker_args
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ns, test_name = parse_worker_args(ns.worker_args)
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ns.worker_args = worker_args
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self.worker_test_name = test_name
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# Strip .py extensions.
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removepy(ns.args)
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if ns.huntrleaks:
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warmup, repetitions, _ = ns.huntrleaks
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if warmup < 1 or repetitions < 1:
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msg = ("Invalid values for the --huntrleaks/-R parameters. The "
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"number of warmups and repetitions must be at least 1 "
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"each (1:1).")
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print(msg, file=sys.stderr, flush=True)
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sys.exit(2)
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if ns.tempdir:
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ns.tempdir = os.path.expanduser(ns.tempdir)
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self.ns = ns
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def find_tests(self, tests):
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self.tests = tests
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if self.ns.single:
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self.next_single_filename = os.path.join(self.tmp_dir, 'pynexttest')
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try:
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with open(self.next_single_filename, 'r') as fp:
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next_test = fp.read().strip()
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self.tests = [next_test]
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except OSError:
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pass
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if self.ns.fromfile:
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self.tests = []
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# regex to match 'test_builtin' in line:
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# '0:00:00 [ 4/400] test_builtin -- test_dict took 1 sec'
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regex = re.compile(r'\btest_[a-zA-Z0-9_]+\b')
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with open(os.path.join(support.SAVEDCWD, self.ns.fromfile)) as fp:
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for line in fp:
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line = line.split('#', 1)[0]
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line = line.strip()
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match = regex.search(line)
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if match is not None:
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self.tests.append(match.group())
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removepy(self.tests)
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if self.ns.pgo:
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# add default PGO tests if no tests are specified
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setup_pgo_tests(self.ns)
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stdtests = STDTESTS[:]
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nottests = NOTTESTS.copy()
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if self.ns.exclude:
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for arg in self.ns.args:
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if arg in stdtests:
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stdtests.remove(arg)
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nottests.add(arg)
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self.ns.args = []
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# if testdir is set, then we are not running the python tests suite, so
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# don't add default tests to be executed or skipped (pass empty values)
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if self.ns.testdir:
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alltests = findtests(self.ns.testdir, list(), set())
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else:
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alltests = findtests(self.ns.testdir, stdtests, nottests)
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if not self.ns.fromfile:
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self.selected = self.tests or self.ns.args or alltests
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else:
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self.selected = self.tests
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if self.ns.single:
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self.selected = self.selected[:1]
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try:
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pos = alltests.index(self.selected[0])
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self.next_single_test = alltests[pos + 1]
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except IndexError:
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pass
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# Remove all the selected tests that precede start if it's set.
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if self.ns.start:
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try:
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del self.selected[:self.selected.index(self.ns.start)]
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except ValueError:
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print("Couldn't find starting test (%s), using all tests"
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% self.ns.start, file=sys.stderr)
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if self.ns.randomize:
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if self.ns.random_seed is None:
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self.ns.random_seed = random.randrange(10000000)
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random.seed(self.ns.random_seed)
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random.shuffle(self.selected)
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def list_tests(self):
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for name in self.selected:
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print(name)
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def _list_cases(self, suite):
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for test in suite:
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if isinstance(test, unittest.loader._FailedTest):
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continue
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if isinstance(test, unittest.TestSuite):
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self._list_cases(test)
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elif isinstance(test, unittest.TestCase):
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if support.match_test(test):
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print(test.id())
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def list_cases(self):
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support.verbose = False
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support.set_match_tests(self.ns.match_tests, self.ns.ignore_tests)
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for test_name in self.selected:
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abstest = get_abs_module(self.ns, test_name)
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try:
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suite = unittest.defaultTestLoader.loadTestsFromName(abstest)
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self._list_cases(suite)
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except unittest.SkipTest:
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self.skipped.append(test_name)
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if self.skipped:
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print(file=sys.stderr)
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print(count(len(self.skipped), "test"), "skipped:", file=sys.stderr)
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printlist(self.skipped, file=sys.stderr)
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def rerun_failed_tests(self):
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self.ns.verbose = True
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self.ns.failfast = False
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self.ns.verbose3 = False
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self.first_result = self.get_tests_result()
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self.log()
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self.log("Re-running failed tests in verbose mode")
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self.rerun = self.bad[:]
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for test_name in self.rerun:
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self.log(f"Re-running {test_name} in verbose mode")
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self.ns.verbose = True
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result = runtest(self.ns, test_name)
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self.accumulate_result(result, rerun=True)
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if result.result == INTERRUPTED:
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break
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if self.bad:
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print(count(len(self.bad), 'test'), "failed again:")
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printlist(self.bad)
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self.display_result()
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def display_result(self):
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# If running the test suite for PGO then no one cares about results.
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if self.ns.pgo:
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return
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print()
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print("== Tests result: %s ==" % self.get_tests_result())
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if self.interrupted:
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print("Test suite interrupted by signal SIGINT.")
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omitted = set(self.selected) - self.get_executed()
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if omitted:
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print()
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print(count(len(omitted), "test"), "omitted:")
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printlist(omitted)
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if self.good and not self.ns.quiet:
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print()
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if (not self.bad
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and not self.skipped
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and not self.interrupted
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and len(self.good) > 1):
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print("All", end=' ')
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print(count(len(self.good), "test"), "OK.")
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if self.ns.print_slow:
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self.test_times.sort(reverse=True)
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print()
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print("10 slowest tests:")
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for test_time, test in self.test_times[:10]:
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print("- %s: %s" % (test, format_duration(test_time)))
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if self.bad:
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print()
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print(count(len(self.bad), "test"), "failed:")
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printlist(self.bad)
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if self.environment_changed:
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print()
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print("{} altered the execution environment:".format(
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count(len(self.environment_changed), "test")))
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printlist(self.environment_changed)
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if self.skipped and not self.ns.quiet:
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print()
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print(count(len(self.skipped), "test"), "skipped:")
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printlist(self.skipped)
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if self.rerun:
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print()
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print("%s:" % count(len(self.rerun), "re-run test"))
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printlist(self.rerun)
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if self.run_no_tests:
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print()
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print(count(len(self.run_no_tests), "test"), "run no tests:")
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printlist(self.run_no_tests)
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def run_tests_sequential(self):
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if self.ns.trace:
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import trace
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self.tracer = trace.Trace(trace=False, count=True)
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save_modules = sys.modules.keys()
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msg = "Run tests sequentially"
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if self.ns.timeout:
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msg += " (timeout: %s)" % format_duration(self.ns.timeout)
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self.log(msg)
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previous_test = None
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for test_index, test_name in enumerate(self.tests, 1):
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start_time = time.monotonic()
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text = test_name
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if previous_test:
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text = '%s -- %s' % (text, previous_test)
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self.display_progress(test_index, text)
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if self.tracer:
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# If we're tracing code coverage, then we don't exit with status
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# if on a false return value from main.
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cmd = ('result = runtest(self.ns, test_name); '
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'self.accumulate_result(result)')
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ns = dict(locals())
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self.tracer.runctx(cmd, globals=globals(), locals=ns)
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result = ns['result']
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else:
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result = runtest(self.ns, test_name)
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self.accumulate_result(result)
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if result.result == INTERRUPTED:
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break
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previous_test = format_test_result(result)
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test_time = time.monotonic() - start_time
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if test_time >= PROGRESS_MIN_TIME:
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previous_test = "%s in %s" % (previous_test, format_duration(test_time))
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elif result.result == PASSED:
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# be quiet: say nothing if the test passed shortly
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previous_test = None
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# Unload the newly imported modules (best effort finalization)
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for module in sys.modules.keys():
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if module not in save_modules and module.startswith("test."):
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support.unload(module)
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if self.ns.failfast and is_failed(result, self.ns):
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break
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if previous_test:
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print(previous_test)
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def _test_forever(self, tests):
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while True:
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for test_name in tests:
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yield test_name
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if self.bad:
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return
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if self.ns.fail_env_changed and self.environment_changed:
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return
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def display_header(self):
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# Print basic platform information
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print("==", platform.python_implementation(), *sys.version.split())
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print("==", platform.platform(aliased=True),
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"%s-endian" % sys.byteorder)
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print("== cwd:", os.getcwd())
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cpu_count = os.cpu_count()
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if cpu_count:
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print("== CPU count:", cpu_count)
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print("== encodings: locale=%s, FS=%s"
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% (locale.getpreferredencoding(False),
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sys.getfilesystemencoding()))
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def get_tests_result(self):
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result = []
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if self.bad:
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result.append("FAILURE")
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elif self.ns.fail_env_changed and self.environment_changed:
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result.append("ENV CHANGED")
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elif not any((self.good, self.bad, self.skipped, self.interrupted,
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self.environment_changed)):
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result.append("NO TEST RUN")
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if self.interrupted:
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result.append("INTERRUPTED")
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if not result:
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result.append("SUCCESS")
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result = ', '.join(result)
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if self.first_result:
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result = '%s then %s' % (self.first_result, result)
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return result
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def run_tests(self):
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# For a partial run, we do not need to clutter the output.
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if (self.ns.header
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or not(self.ns.pgo or self.ns.quiet or self.ns.single
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or self.tests or self.ns.args)):
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self.display_header()
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if self.ns.huntrleaks:
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warmup, repetitions, _ = self.ns.huntrleaks
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if warmup < 3:
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msg = ("WARNING: Running tests with --huntrleaks/-R and less than "
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"3 warmup repetitions can give false positives!")
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print(msg, file=sys.stdout, flush=True)
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if self.ns.randomize:
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print("Using random seed", self.ns.random_seed)
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if self.ns.forever:
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self.tests = self._test_forever(list(self.selected))
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self.test_count = ''
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self.test_count_width = 3
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else:
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self.tests = iter(self.selected)
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self.test_count = '/{}'.format(len(self.selected))
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self.test_count_width = len(self.test_count) - 1
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if self.ns.use_mp:
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from test.libregrtest.runtest_mp import run_tests_multiprocess
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run_tests_multiprocess(self)
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else:
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self.run_tests_sequential()
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def finalize(self):
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if self.next_single_filename:
|
|
if self.next_single_test:
|
|
with open(self.next_single_filename, 'w') as fp:
|
|
fp.write(self.next_single_test + '\n')
|
|
else:
|
|
os.unlink(self.next_single_filename)
|
|
|
|
if self.tracer:
|
|
r = self.tracer.results()
|
|
r.write_results(show_missing=True, summary=True,
|
|
coverdir=self.ns.coverdir)
|
|
|
|
print()
|
|
duration = time.monotonic() - self.start_time
|
|
print("Total duration: %s" % format_duration(duration))
|
|
print("Tests result: %s" % self.get_tests_result())
|
|
|
|
if self.ns.runleaks:
|
|
os.system("leaks %d" % os.getpid())
|
|
|
|
def save_xml_result(self):
|
|
if not self.ns.xmlpath and not self.testsuite_xml:
|
|
return
|
|
|
|
import xml.etree.ElementTree as ET
|
|
root = ET.Element("testsuites")
|
|
|
|
# Manually count the totals for the overall summary
|
|
totals = {'tests': 0, 'errors': 0, 'failures': 0}
|
|
for suite in self.testsuite_xml:
|
|
root.append(suite)
|
|
for k in totals:
|
|
try:
|
|
totals[k] += int(suite.get(k, 0))
|
|
except ValueError:
|
|
pass
|
|
|
|
for k, v in totals.items():
|
|
root.set(k, str(v))
|
|
|
|
xmlpath = os.path.join(support.SAVEDCWD, self.ns.xmlpath)
|
|
with open(xmlpath, 'wb') as f:
|
|
for s in ET.tostringlist(root):
|
|
f.write(s)
|
|
|
|
def set_temp_dir(self):
|
|
if self.ns.tempdir:
|
|
self.tmp_dir = self.ns.tempdir
|
|
|
|
if not self.tmp_dir:
|
|
# When tests are run from the Python build directory, it is best practice
|
|
# to keep the test files in a subfolder. This eases the cleanup of leftover
|
|
# files using the "make distclean" command.
|
|
if sysconfig.is_python_build():
|
|
self.tmp_dir = sysconfig.get_config_var('abs_builddir')
|
|
if self.tmp_dir is None:
|
|
# bpo-30284: On Windows, only srcdir is available. Using
|
|
# abs_builddir mostly matters on UNIX when building Python
|
|
# out of the source tree, especially when the source tree
|
|
# is read only.
|
|
self.tmp_dir = sysconfig.get_config_var('srcdir')
|
|
self.tmp_dir = os.path.join(self.tmp_dir, 'build')
|
|
else:
|
|
self.tmp_dir = tempfile.gettempdir()
|
|
|
|
self.tmp_dir = os.path.abspath(self.tmp_dir)
|
|
|
|
def create_temp_dir(self):
|
|
os.makedirs(self.tmp_dir, exist_ok=True)
|
|
|
|
# Define a writable temp dir that will be used as cwd while running
|
|
# the tests. The name of the dir includes the pid to allow parallel
|
|
# testing (see the -j option).
|
|
pid = os.getpid()
|
|
if self.worker_test_name is not None:
|
|
test_cwd = 'test_python_worker_{}'.format(pid)
|
|
else:
|
|
test_cwd = 'test_python_{}'.format(pid)
|
|
test_cwd = os.path.join(self.tmp_dir, test_cwd)
|
|
return test_cwd
|
|
|
|
def cleanup(self):
|
|
import glob
|
|
|
|
path = os.path.join(self.tmp_dir, 'test_python_*')
|
|
print("Cleanup %s directory" % self.tmp_dir)
|
|
for name in glob.glob(path):
|
|
if os.path.isdir(name):
|
|
print("Remove directory: %s" % name)
|
|
support.rmtree(name)
|
|
else:
|
|
print("Remove file: %s" % name)
|
|
support.unlink(name)
|
|
|
|
def main(self, tests=None, **kwargs):
|
|
self.parse_args(kwargs)
|
|
|
|
self.set_temp_dir()
|
|
|
|
if self.ns.cleanup:
|
|
self.cleanup()
|
|
sys.exit(0)
|
|
|
|
test_cwd = self.create_temp_dir()
|
|
|
|
try:
|
|
# Run the tests in a context manager that temporarily changes the CWD
|
|
# to a temporary and writable directory. If it's not possible to
|
|
# create or change the CWD, the original CWD will be used.
|
|
# The original CWD is available from support.SAVEDCWD.
|
|
with support.temp_cwd(test_cwd, quiet=True):
|
|
# When using multiprocessing, worker processes will use test_cwd
|
|
# as their parent temporary directory. So when the main process
|
|
# exit, it removes also subdirectories of worker processes.
|
|
self.ns.tempdir = test_cwd
|
|
|
|
self._main(tests, kwargs)
|
|
except SystemExit as exc:
|
|
# bpo-38203: Python can hang at exit in Py_Finalize(), especially
|
|
# on threading._shutdown() call: put a timeout
|
|
faulthandler.dump_traceback_later(EXIT_TIMEOUT, exit=True)
|
|
|
|
sys.exit(exc.code)
|
|
|
|
def getloadavg(self):
|
|
if self.win_load_tracker is not None:
|
|
return self.win_load_tracker.getloadavg()
|
|
|
|
if hasattr(os, 'getloadavg'):
|
|
return os.getloadavg()[0]
|
|
|
|
return None
|
|
|
|
def _main(self, tests, kwargs):
|
|
if self.worker_test_name is not None:
|
|
from test.libregrtest.runtest_mp import run_tests_worker
|
|
run_tests_worker(self.ns, self.worker_test_name)
|
|
|
|
if self.ns.wait:
|
|
input("Press any key to continue...")
|
|
|
|
support.PGO = self.ns.pgo
|
|
support.PGO_EXTENDED = self.ns.pgo_extended
|
|
|
|
setup_tests(self.ns)
|
|
|
|
self.find_tests(tests)
|
|
|
|
if self.ns.list_tests:
|
|
self.list_tests()
|
|
sys.exit(0)
|
|
|
|
if self.ns.list_cases:
|
|
self.list_cases()
|
|
sys.exit(0)
|
|
|
|
# If we're on windows and this is the parent runner (not a worker),
|
|
# track the load average.
|
|
if sys.platform == 'win32' and self.worker_test_name is None:
|
|
from test.libregrtest.win_utils import WindowsLoadTracker
|
|
|
|
try:
|
|
self.win_load_tracker = WindowsLoadTracker()
|
|
except FileNotFoundError as error:
|
|
# Windows IoT Core and Windows Nano Server do not provide
|
|
# typeperf.exe for x64, x86 or ARM
|
|
print(f'Failed to create WindowsLoadTracker: {error}')
|
|
|
|
try:
|
|
self.run_tests()
|
|
self.display_result()
|
|
|
|
if self.ns.verbose2 and self.bad:
|
|
self.rerun_failed_tests()
|
|
finally:
|
|
if self.win_load_tracker is not None:
|
|
self.win_load_tracker.close()
|
|
self.win_load_tracker = None
|
|
|
|
self.finalize()
|
|
|
|
self.save_xml_result()
|
|
|
|
if self.bad:
|
|
sys.exit(2)
|
|
if self.interrupted:
|
|
sys.exit(130)
|
|
if self.ns.fail_env_changed and self.environment_changed:
|
|
sys.exit(3)
|
|
sys.exit(0)
|
|
|
|
|
|
def main(tests=None, **kwargs):
|
|
"""Run the Python suite."""
|
|
Regrtest().main(tests=tests, **kwargs)
|