718 lines
25 KiB
Python
718 lines
25 KiB
Python
"""
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Tests of regrtest.py.
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Note: test_regrtest cannot be run twice in parallel.
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"""
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from __future__ import print_function
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import collections
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import errno
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import os.path
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import platform
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import re
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import subprocess
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import sys
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import sysconfig
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import tempfile
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import textwrap
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import unittest
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from test import support
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# Use utils alias to use the same code for TestUtils in master and 2.7 branches
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import regrtest as utils
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Py_DEBUG = hasattr(sys, 'getobjects')
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ROOT_DIR = os.path.join(os.path.dirname(__file__), '..', '..')
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ROOT_DIR = os.path.abspath(os.path.normpath(ROOT_DIR))
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TEST_INTERRUPTED = textwrap.dedent("""
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from signal import SIGINT
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try:
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from _testcapi import raise_signal
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raise_signal(SIGINT)
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except ImportError:
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import os
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os.kill(os.getpid(), SIGINT)
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""")
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SubprocessRun = collections.namedtuple('SubprocessRun',
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'returncode stdout stderr')
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class BaseTestCase(unittest.TestCase):
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TEST_UNIQUE_ID = 1
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TESTNAME_PREFIX = 'test_regrtest_'
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TESTNAME_REGEX = r'test_[a-zA-Z0-9_]+'
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def setUp(self):
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self.testdir = os.path.realpath(os.path.dirname(__file__))
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self.tmptestdir = tempfile.mkdtemp()
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self.addCleanup(support.rmtree, self.tmptestdir)
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def create_test(self, name=None, code=''):
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if not name:
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name = 'noop%s' % BaseTestCase.TEST_UNIQUE_ID
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BaseTestCase.TEST_UNIQUE_ID += 1
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# test_regrtest cannot be run twice in parallel because
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# of setUp() and create_test()
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name = self.TESTNAME_PREFIX + name
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path = os.path.join(self.tmptestdir, name + '.py')
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self.addCleanup(support.unlink, path)
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# Use O_EXCL to ensure that we do not override existing tests
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try:
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fd = os.open(path, os.O_WRONLY | os.O_CREAT | os.O_EXCL)
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except OSError as exc:
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if (exc.errno in (errno.EACCES, errno.EPERM)
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and not sysconfig.is_python_build()):
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self.skipTest("cannot write %s: %s" % (path, exc))
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else:
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raise
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else:
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with os.fdopen(fd, 'w') as fp:
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fp.write(code)
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return name
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def regex_search(self, regex, output):
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match = re.search(regex, output, re.MULTILINE)
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if not match:
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self.fail("%r not found in %r" % (regex, output))
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return match
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def check_line(self, output, regex):
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regex = re.compile(r'^' + regex, re.MULTILINE)
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self.assertRegexpMatches(output, regex)
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def parse_executed_tests(self, output):
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regex = (r'^[0-9]+:[0-9]+:[0-9]+ (?:load avg: [0-9]+\.[0-9]{2} )?\[ *[0-9]+(?:/ *[0-9]+)*\] (%s)'
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% self.TESTNAME_REGEX)
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parser = re.finditer(regex, output, re.MULTILINE)
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return list(match.group(1) for match in parser)
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def check_executed_tests(self, output, tests, skipped=(), failed=(),
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env_changed=(), omitted=(),
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rerun=(),
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randomize=False, interrupted=False,
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fail_env_changed=False):
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if isinstance(tests, str):
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tests = [tests]
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if isinstance(skipped, str):
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skipped = [skipped]
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if isinstance(failed, str):
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failed = [failed]
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if isinstance(env_changed, str):
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env_changed = [env_changed]
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if isinstance(omitted, str):
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omitted = [omitted]
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if isinstance(rerun, str):
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rerun = [rerun]
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executed = self.parse_executed_tests(output)
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if randomize:
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self.assertEqual(set(executed), set(tests), output)
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else:
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self.assertEqual(executed, tests, (executed, tests, output))
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def plural(count):
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return 's' if count != 1 else ''
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def list_regex(line_format, tests):
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count = len(tests)
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names = ' '.join(sorted(tests))
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regex = line_format % (count, plural(count))
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regex = r'%s:\n %s$' % (regex, names)
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return regex
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if skipped:
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regex = list_regex('%s test%s skipped', skipped)
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self.check_line(output, regex)
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if failed:
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regex = list_regex('%s test%s failed', failed)
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self.check_line(output, regex)
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if env_changed:
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regex = list_regex('%s test%s altered the execution environment',
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env_changed)
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self.check_line(output, regex)
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if omitted:
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regex = list_regex('%s test%s omitted', omitted)
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self.check_line(output, regex)
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if rerun:
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regex = list_regex('%s re-run test%s', rerun)
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self.check_line(output, regex)
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self.check_line(output, "Re-running failed tests in verbose mode")
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for name in rerun:
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regex = "Re-running test %r in verbose mode" % name
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self.check_line(output, regex)
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good = (len(tests) - len(skipped) - len(failed)
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- len(omitted) - len(env_changed))
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if good:
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regex = r'%s test%s OK\.$' % (good, plural(good))
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if not skipped and not failed and good > 1:
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regex = 'All %s' % regex
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self.check_line(output, regex)
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if interrupted:
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self.check_line(output, 'Test suite interrupted by signal SIGINT.')
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result = []
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if failed:
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result.append('FAILURE')
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elif fail_env_changed and env_changed:
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result.append('ENV CHANGED')
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if 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 rerun:
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self.check_line(output, 'Tests result: %s' % result)
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result = 'FAILURE then %s' % result
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self.check_line(output, 'Tests result: %s' % result)
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def parse_random_seed(self, output):
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match = self.regex_search(r'Using random seed ([0-9]+)', output)
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randseed = int(match.group(1))
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self.assertTrue(0 <= randseed <= 10000000, randseed)
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return randseed
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def run_command(self, args, input=None, exitcode=0, **kw):
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if not input:
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input = ''
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if 'stderr' not in kw:
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kw['stderr'] = subprocess.PIPE
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proc = subprocess.Popen(args,
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universal_newlines=True,
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stdout=subprocess.PIPE,
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**kw)
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stdout, stderr = proc.communicate(input=input)
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if proc.returncode != exitcode:
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msg = ("Command %s failed with exit code %s\n"
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"\n"
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"stdout:\n"
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"---\n"
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"%s\n"
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"---\n"
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% (str(args), proc.returncode, stdout))
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if proc.stderr:
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msg += ("\n"
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"stderr:\n"
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"---\n"
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"%s"
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"---\n"
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% stderr)
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self.fail(msg)
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return SubprocessRun(proc.returncode, stdout, stderr)
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def run_python(self, args, **kw):
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args = [sys.executable] + list(args)
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proc = self.run_command(args, **kw)
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return proc.stdout
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class ProgramsTestCase(BaseTestCase):
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"""
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Test various ways to run the Python test suite. Use options close
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to options used on the buildbot.
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"""
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NTEST = 4
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def setUp(self):
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super(ProgramsTestCase, self).setUp()
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# Create NTEST tests doing nothing
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self.tests = [self.create_test() for index in range(self.NTEST)]
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self.python_args = ['-Wd', '-3', '-E', '-bb', '-tt']
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self.regrtest_args = ['-uall', '-rwW',
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'--testdir=%s' % self.tmptestdir]
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def check_output(self, output):
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self.parse_random_seed(output)
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self.check_executed_tests(output, self.tests, randomize=True)
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def run_tests(self, args):
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output = self.run_python(args)
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self.check_output(output)
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def test_script_regrtest(self):
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# Lib/test/regrtest.py
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script = os.path.join(self.testdir, 'regrtest.py')
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args = self.python_args + [script] + self.regrtest_args + self.tests
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self.run_tests(args)
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def test_module_test(self):
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# -m test
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args = self.python_args + ['-m', 'test'] + self.regrtest_args + self.tests
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self.run_tests(args)
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def test_module_regrtest(self):
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# -m test.regrtest
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args = self.python_args + ['-m', 'test.regrtest'] + self.regrtest_args + self.tests
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self.run_tests(args)
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def test_module_autotest(self):
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# -m test.autotest
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args = self.python_args + ['-m', 'test.autotest'] + self.regrtest_args + self.tests
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self.run_tests(args)
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def test_module_from_test_autotest(self):
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# from test import autotest
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code = 'from test import autotest'
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args = self.python_args + ['-c', code] + self.regrtest_args + self.tests
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self.run_tests(args)
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def test_script_autotest(self):
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# Lib/test/autotest.py
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script = os.path.join(self.testdir, 'autotest.py')
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args = self.python_args + [script] + self.regrtest_args + self.tests
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self.run_tests(args)
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def run_batch(self, *args):
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proc = self.run_command(args)
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self.check_output(proc.stdout)
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def need_pcbuild(self):
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exe = os.path.normpath(os.path.abspath(sys.executable))
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parts = exe.split(os.path.sep)
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if len(parts) < 3:
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# it's not a python build, python is likely to be installed
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return
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build_dir = parts[-3]
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if build_dir.lower() != 'pcbuild':
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self.skipTest("Tools/buildbot/test.bat requires PCbuild build, "
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"found %s" % build_dir)
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@unittest.skipUnless(sysconfig.is_python_build(),
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'test.bat script is not installed')
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@unittest.skipUnless(sys.platform == 'win32', 'Windows only')
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def test_tools_buildbot_test(self):
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self.need_pcbuild()
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# Tools\buildbot\test.bat
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script = os.path.join(ROOT_DIR, 'Tools', 'buildbot', 'test.bat')
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test_args = ['--testdir=%s' % self.tmptestdir]
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if platform.architecture()[0] == '64bit':
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test_args.append('-x64') # 64-bit build
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if not Py_DEBUG:
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test_args.append('+d') # Release build, use python.exe
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args = [script] + test_args + self.tests
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self.run_batch(*args)
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@unittest.skipUnless(sys.platform == 'win32', 'Windows only')
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def test_pcbuild_rt(self):
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self.need_pcbuild()
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# PCbuild\rt.bat
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script = os.path.join(ROOT_DIR, r'PCbuild\rt.bat')
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rt_args = ["-q"] # Quick, don't run tests twice
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if platform.architecture()[0] == '64bit':
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rt_args.append('-x64') # 64-bit build
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if Py_DEBUG:
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rt_args.append('-d') # Debug build, use python_d.exe
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args = [script] + rt_args + self.regrtest_args + self.tests
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self.run_batch(*args)
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class ArgsTestCase(BaseTestCase):
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"""
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Test arguments of the Python test suite.
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"""
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def run_tests(self, *testargs, **kw):
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cmdargs = ('-m', 'test', '--testdir=%s' % self.tmptestdir) + testargs
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return self.run_python(cmdargs, **kw)
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def test_failing_test(self):
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# test a failing test
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code = textwrap.dedent("""
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import unittest
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from test import support
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class FailingTest(unittest.TestCase):
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def test_failing(self):
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self.fail("bug")
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def test_main():
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support.run_unittest(FailingTest)
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""")
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test_ok = self.create_test('ok')
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test_failing = self.create_test('failing', code=code)
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tests = [test_ok, test_failing]
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output = self.run_tests(*tests, exitcode=2)
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self.check_executed_tests(output, tests, failed=test_failing)
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def test_resources(self):
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# test -u command line option
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tests = {}
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for resource in ('audio', 'network'):
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code = 'from test import support\nsupport.requires(%r)' % resource
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tests[resource] = self.create_test(resource, code)
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test_names = sorted(tests.values())
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# -u all: 2 resources enabled
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output = self.run_tests('-u', 'all', *test_names)
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self.check_executed_tests(output, test_names)
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# -u audio: 1 resource enabled
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output = self.run_tests('-uaudio', *test_names)
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self.check_executed_tests(output, test_names,
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skipped=tests['network'])
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# no option: 0 resources enabled
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output = self.run_tests(*test_names)
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self.check_executed_tests(output, test_names,
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skipped=test_names)
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def test_random(self):
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# test -r and --randseed command line option
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code = textwrap.dedent("""
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import random
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print("TESTRANDOM: %s" % random.randint(1, 1000))
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""")
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test = self.create_test('random', code)
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# first run to get the output with the random seed
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output = self.run_tests('-r', '-v', test)
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randseed = self.parse_random_seed(output)
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match = self.regex_search(r'TESTRANDOM: ([0-9]+)', output)
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test_random = int(match.group(1))
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# try to reproduce with the random seed
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output = self.run_tests('-r', '-v', '--randseed=%s' % randseed, test)
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randseed2 = self.parse_random_seed(output)
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self.assertEqual(randseed2, randseed)
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match = self.regex_search(r'TESTRANDOM: ([0-9]+)', output)
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test_random2 = int(match.group(1))
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self.assertEqual(test_random2, test_random)
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def test_fromfile(self):
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# test --fromfile
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tests = [self.create_test() for index in range(5)]
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# Write the list of files using a format similar to regrtest output:
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# [1/2] test_1
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# [2/2] test_2
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filename = support.TESTFN
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self.addCleanup(support.unlink, filename)
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# test format 'test_opcodes'
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with open(filename, "w") as fp:
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for name in tests:
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print(name, file=fp)
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output = self.run_tests('--fromfile', filename)
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self.check_executed_tests(output, tests)
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def test_interrupted(self):
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code = TEST_INTERRUPTED
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test = self.create_test('sigint', code=code)
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output = self.run_tests(test, exitcode=130)
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self.check_executed_tests(output, test, omitted=test,
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interrupted=True)
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def test_slowest(self):
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# test --slow
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tests = [self.create_test() for index in range(3)]
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output = self.run_tests("--slowest", *tests)
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self.check_executed_tests(output, tests)
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regex = ('10 slowest tests:\n'
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'(?:- %s: .*\n){%s}'
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% (self.TESTNAME_REGEX, len(tests)))
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self.check_line(output, regex)
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def test_slow_interrupted(self):
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# Issue #25373: test --slowest with an interrupted test
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code = TEST_INTERRUPTED
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test = self.create_test("sigint", code=code)
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try:
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import threading
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tests = (False, True)
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except ImportError:
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tests = (False,)
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for multiprocessing in tests:
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if multiprocessing:
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args = ("--slowest", "-j2", test)
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else:
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args = ("--slowest", test)
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output = self.run_tests(*args, exitcode=130)
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self.check_executed_tests(output, test,
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omitted=test, interrupted=True)
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regex = ('10 slowest tests:\n')
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self.check_line(output, regex)
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def test_coverage(self):
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# test --coverage
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test = self.create_test('coverage')
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output = self.run_tests("--coverage", test)
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self.check_executed_tests(output, [test])
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regex = (r'lines +cov% +module +\(path\)\n'
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r'(?: *[0-9]+ *[0-9]{1,2}% *[^ ]+ +\([^)]+\)+)+')
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self.check_line(output, regex)
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def test_forever(self):
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# test --forever
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code = textwrap.dedent("""
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import __builtin__
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import unittest
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from test import support
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class ForeverTester(unittest.TestCase):
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def test_run(self):
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# Store the state in the __builtin__ module, because the test
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# module is reload at each run
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if 'RUN' in __builtin__.__dict__:
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__builtin__.__dict__['RUN'] += 1
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if __builtin__.__dict__['RUN'] >= 3:
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self.fail("fail at the 3rd runs")
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else:
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__builtin__.__dict__['RUN'] = 1
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def test_main():
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support.run_unittest(ForeverTester)
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""")
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test = self.create_test('forever', code=code)
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output = self.run_tests('--forever', test, exitcode=2)
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self.check_executed_tests(output, [test]*3, failed=test)
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def check_leak(self, code, what):
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test = self.create_test('huntrleaks', code=code)
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filename = 'reflog.txt'
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self.addCleanup(support.unlink, filename)
|
|
output = self.run_tests('--huntrleaks', '3:3:', test,
|
|
exitcode=2,
|
|
stderr=subprocess.STDOUT)
|
|
self.check_executed_tests(output, [test], failed=test)
|
|
|
|
line = 'beginning 6 repetitions\n123456\n......\n'
|
|
self.check_line(output, re.escape(line))
|
|
|
|
line2 = '%s leaked [1, 1, 1] %s, sum=3\n' % (test, what)
|
|
self.assertIn(line2, output)
|
|
|
|
with open(filename) as fp:
|
|
reflog = fp.read()
|
|
self.assertIn(line2, reflog)
|
|
|
|
@unittest.skipUnless(Py_DEBUG, 'need a debug build')
|
|
@support.requires_type_collecting
|
|
def test_huntrleaks(self):
|
|
# test --huntrleaks
|
|
code = textwrap.dedent("""
|
|
import unittest
|
|
from test import support
|
|
|
|
GLOBAL_LIST = []
|
|
|
|
class RefLeakTest(unittest.TestCase):
|
|
def test_leak(self):
|
|
GLOBAL_LIST.append(object())
|
|
|
|
def test_main():
|
|
support.run_unittest(RefLeakTest)
|
|
""")
|
|
self.check_leak(code, 'references')
|
|
|
|
@unittest.skipUnless(Py_DEBUG, 'need a debug build')
|
|
def test_huntrleaks_fd_leak(self):
|
|
# test --huntrleaks for file descriptor leak
|
|
code = textwrap.dedent("""
|
|
import os
|
|
import unittest
|
|
from test import support
|
|
|
|
class FDLeakTest(unittest.TestCase):
|
|
def test_leak(self):
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
# bug: never close the file descriptor
|
|
|
|
def test_main():
|
|
support.run_unittest(FDLeakTest)
|
|
""")
|
|
self.check_leak(code, 'file descriptors')
|
|
|
|
def test_list_tests(self):
|
|
# test --list-tests
|
|
tests = [self.create_test() for i in range(5)]
|
|
output = self.run_tests('--list-tests', *tests)
|
|
self.assertEqual(output.rstrip().splitlines(),
|
|
tests)
|
|
|
|
def test_list_cases(self):
|
|
# test --list-cases
|
|
code = textwrap.dedent("""
|
|
import unittest
|
|
|
|
class Tests(unittest.TestCase):
|
|
def test_method1(self):
|
|
pass
|
|
def test_method2(self):
|
|
pass
|
|
""")
|
|
testname = self.create_test(code=code)
|
|
|
|
# Test --list-cases
|
|
all_methods = ['%s.Tests.test_method1' % testname,
|
|
'%s.Tests.test_method2' % testname]
|
|
output = self.run_tests('--list-cases', testname)
|
|
self.assertEqual(output.splitlines(), all_methods)
|
|
|
|
# Test --list-cases with --match
|
|
all_methods = ['%s.Tests.test_method1' % testname]
|
|
output = self.run_tests('--list-cases',
|
|
'-m', 'test_method1',
|
|
testname)
|
|
self.assertEqual(output.splitlines(), all_methods)
|
|
|
|
@unittest.skipIf(sys.platform.startswith('aix'),
|
|
"support._crash_python() doesn't work on AIX")
|
|
def test_crashed(self):
|
|
# Any code which causes a crash
|
|
code = 'import test.support; test.support._crash_python()'
|
|
crash_test = self.create_test(name="crash", code=code)
|
|
ok_test = self.create_test(name="ok")
|
|
|
|
tests = [crash_test, ok_test]
|
|
output = self.run_tests("-j2", *tests, exitcode=2)
|
|
self.check_executed_tests(output, tests, failed=crash_test,
|
|
randomize=True)
|
|
|
|
def parse_methods(self, output):
|
|
regex = re.compile("^(test[^ ]+).*ok$", flags=re.MULTILINE)
|
|
return [match.group(1) for match in regex.finditer(output)]
|
|
|
|
def test_matchfile(self):
|
|
# Any code which causes a crash
|
|
code = textwrap.dedent("""
|
|
import unittest
|
|
from test import support
|
|
|
|
class Tests(unittest.TestCase):
|
|
def test_method1(self):
|
|
pass
|
|
def test_method2(self):
|
|
pass
|
|
def test_method3(self):
|
|
pass
|
|
def test_method4(self):
|
|
pass
|
|
|
|
def test_main():
|
|
support.run_unittest(Tests)
|
|
""")
|
|
all_methods = ['test_method1', 'test_method2',
|
|
'test_method3', 'test_method4']
|
|
testname = self.create_test(code=code)
|
|
|
|
# by default, all methods should be run
|
|
output = self.run_tests("-v", testname)
|
|
methods = self.parse_methods(output)
|
|
self.assertEqual(methods, all_methods)
|
|
|
|
# only run a subset
|
|
filename = support.TESTFN
|
|
self.addCleanup(support.unlink, filename)
|
|
|
|
subset = [
|
|
# only match the method name
|
|
'test_method1',
|
|
# match the full identifier
|
|
'%s.Tests.test_method3' % testname]
|
|
with open(filename, "w") as fp:
|
|
for name in subset:
|
|
print(name, file=fp)
|
|
|
|
output = self.run_tests("-v", "--matchfile", filename, testname)
|
|
methods = self.parse_methods(output)
|
|
subset = ['test_method1', 'test_method3']
|
|
self.assertEqual(methods, subset)
|
|
|
|
def test_env_changed(self):
|
|
code = textwrap.dedent("""
|
|
import unittest
|
|
from test import support
|
|
|
|
class Tests(unittest.TestCase):
|
|
def test_env_changed(self):
|
|
open("env_changed", "w").close()
|
|
|
|
def test_main():
|
|
support.run_unittest(Tests)
|
|
""")
|
|
testname = self.create_test(code=code)
|
|
|
|
# don't fail by default
|
|
output = self.run_tests(testname)
|
|
self.check_executed_tests(output, [testname], env_changed=testname)
|
|
|
|
# fail with --fail-env-changed
|
|
output = self.run_tests("--fail-env-changed", testname, exitcode=3)
|
|
self.check_executed_tests(output, [testname], env_changed=testname,
|
|
fail_env_changed=True)
|
|
|
|
def test_rerun_fail(self):
|
|
code = textwrap.dedent("""
|
|
import unittest
|
|
|
|
class Tests(unittest.TestCase):
|
|
def test_bug(self):
|
|
# test always fail
|
|
self.fail("bug")
|
|
|
|
def test_main():
|
|
support.run_unittest(Tests)
|
|
""")
|
|
testname = self.create_test(code=code)
|
|
|
|
output = self.run_tests("-w", testname, exitcode=2)
|
|
self.check_executed_tests(output, [testname],
|
|
failed=testname, rerun=testname)
|
|
|
|
|
|
class TestUtils(unittest.TestCase):
|
|
def test_format_duration(self):
|
|
self.assertEqual(utils.format_duration(0),
|
|
'0 ms')
|
|
self.assertEqual(utils.format_duration(1e-9),
|
|
'1 ms')
|
|
self.assertEqual(utils.format_duration(10e-3),
|
|
'10 ms')
|
|
self.assertEqual(utils.format_duration(1.5),
|
|
'1 sec 500 ms')
|
|
self.assertEqual(utils.format_duration(1),
|
|
'1 sec')
|
|
self.assertEqual(utils.format_duration(2 * 60),
|
|
'2 min')
|
|
self.assertEqual(utils.format_duration(2 * 60 + 1),
|
|
'2 min 1 sec')
|
|
self.assertEqual(utils.format_duration(3 * 3600),
|
|
'3 hour')
|
|
self.assertEqual(utils.format_duration(3 * 3600 + 2 * 60 + 1),
|
|
'3 hour 2 min')
|
|
self.assertEqual(utils.format_duration(3 * 3600 + 1),
|
|
'3 hour 1 sec')
|
|
|
|
|
|
def test_main():
|
|
support.run_unittest(ProgramsTestCase, ArgsTestCase, TestUtils)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|