mirror of https://github.com/python/cpython
412 lines
12 KiB
Python
412 lines
12 KiB
Python
import faulthandler
|
|
import functools
|
|
import gc
|
|
import importlib
|
|
import io
|
|
import os
|
|
import sys
|
|
import time
|
|
import traceback
|
|
import unittest
|
|
|
|
from test import support
|
|
from test.support import os_helper
|
|
from test.libregrtest.cmdline import Namespace
|
|
from test.libregrtest.save_env import saved_test_environment
|
|
from test.libregrtest.utils import clear_caches, format_duration, print_warning
|
|
|
|
|
|
class TestResult:
|
|
def __init__(
|
|
self,
|
|
name: str,
|
|
duration_sec: float = 0.0,
|
|
xml_data: list[str] | None = None,
|
|
) -> None:
|
|
self.name = name
|
|
self.duration_sec = duration_sec
|
|
self.xml_data = xml_data
|
|
|
|
def __str__(self) -> str:
|
|
return f"{self.name} finished"
|
|
|
|
|
|
class Passed(TestResult):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} passed"
|
|
|
|
|
|
class Failed(TestResult):
|
|
def __init__(
|
|
self,
|
|
name: str,
|
|
duration_sec: float = 0.0,
|
|
xml_data: list[str] | None = None,
|
|
errors: list[tuple[str, str]] | None = None,
|
|
failures: list[tuple[str, str]] | None = None,
|
|
) -> None:
|
|
super().__init__(name, duration_sec=duration_sec, xml_data=xml_data)
|
|
self.errors = errors
|
|
self.failures = failures
|
|
|
|
def __str__(self) -> str:
|
|
if self.errors and self.failures:
|
|
le = len(self.errors)
|
|
lf = len(self.failures)
|
|
error_s = "error" + ("s" if le > 1 else "")
|
|
failure_s = "failure" + ("s" if lf > 1 else "")
|
|
return f"{self.name} failed ({le} {error_s}, {lf} {failure_s})"
|
|
|
|
if self.errors:
|
|
le = len(self.errors)
|
|
error_s = "error" + ("s" if le > 1 else "")
|
|
return f"{self.name} failed ({le} {error_s})"
|
|
|
|
if self.failures:
|
|
lf = len(self.failures)
|
|
failure_s = "failure" + ("s" if lf > 1 else "")
|
|
return f"{self.name} failed ({lf} {failure_s})"
|
|
|
|
return f"{self.name} failed"
|
|
|
|
|
|
class UncaughtException(Failed):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} failed (uncaught exception)"
|
|
|
|
|
|
class EnvChanged(Failed):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} failed (env changed)"
|
|
|
|
|
|
class RefLeak(Failed):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} failed (reference leak)"
|
|
|
|
|
|
class Skipped(TestResult):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} skipped"
|
|
|
|
|
|
class ResourceDenied(Skipped):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} skipped (resource denied)"
|
|
|
|
|
|
class Interrupted(TestResult):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} interrupted"
|
|
|
|
|
|
class ChildError(Failed):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} crashed"
|
|
|
|
|
|
class DidNotRun(TestResult):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} ran no tests"
|
|
|
|
|
|
class Timeout(Failed):
|
|
def __str__(self) -> str:
|
|
return f"{self.name} timed out ({format_duration(self.duration_sec)})"
|
|
|
|
|
|
# Minimum duration of a test to display its duration or to mention that
|
|
# the test is running in background
|
|
PROGRESS_MIN_TIME = 30.0 # seconds
|
|
|
|
# small set of tests to determine if we have a basically functioning interpreter
|
|
# (i.e. if any of these fail, then anything else is likely to follow)
|
|
STDTESTS = [
|
|
'test_grammar',
|
|
'test_opcodes',
|
|
'test_dict',
|
|
'test_builtin',
|
|
'test_exceptions',
|
|
'test_types',
|
|
'test_unittest',
|
|
'test_doctest',
|
|
'test_doctest2',
|
|
'test_support'
|
|
]
|
|
|
|
# set of tests that we don't want to be executed when using regrtest
|
|
NOTTESTS = set()
|
|
|
|
|
|
# used by --findleaks, store for gc.garbage
|
|
FOUND_GARBAGE = []
|
|
|
|
|
|
def is_failed(result: TestResult, ns: Namespace) -> bool:
|
|
if isinstance(result, EnvChanged):
|
|
return ns.fail_env_changed
|
|
return isinstance(result, Failed)
|
|
|
|
|
|
def findtestdir(path=None):
|
|
return path or os.path.dirname(os.path.dirname(__file__)) or os.curdir
|
|
|
|
|
|
def findtests(testdir=None, stdtests=STDTESTS, nottests=NOTTESTS):
|
|
"""Return a list of all applicable test modules."""
|
|
testdir = findtestdir(testdir)
|
|
names = os.listdir(testdir)
|
|
tests = []
|
|
others = set(stdtests) | nottests
|
|
for name in names:
|
|
mod, ext = os.path.splitext(name)
|
|
if mod[:5] == "test_" and ext in (".py", "") and mod not in others:
|
|
tests.append(mod)
|
|
return stdtests + sorted(tests)
|
|
|
|
|
|
def get_abs_module(ns: Namespace, test_name: str) -> str:
|
|
if test_name.startswith('test.') or ns.testdir:
|
|
return test_name
|
|
else:
|
|
# Import it from the test package
|
|
return 'test.' + test_name
|
|
|
|
|
|
def _runtest(ns: Namespace, test_name: str) -> TestResult:
|
|
# Handle faulthandler timeout, capture stdout+stderr, XML serialization
|
|
# and measure time.
|
|
|
|
output_on_failure = ns.verbose3
|
|
|
|
use_timeout = (ns.timeout is not None)
|
|
if use_timeout:
|
|
faulthandler.dump_traceback_later(ns.timeout, exit=True)
|
|
|
|
start_time = time.perf_counter()
|
|
try:
|
|
support.set_match_tests(ns.match_tests, ns.ignore_tests)
|
|
support.junit_xml_list = xml_list = [] if ns.xmlpath else None
|
|
if ns.failfast:
|
|
support.failfast = True
|
|
|
|
if output_on_failure:
|
|
support.verbose = True
|
|
|
|
stream = io.StringIO()
|
|
orig_stdout = sys.stdout
|
|
orig_stderr = sys.stderr
|
|
try:
|
|
sys.stdout = stream
|
|
sys.stderr = stream
|
|
result = _runtest_inner(ns, test_name,
|
|
display_failure=False)
|
|
if not isinstance(result, Passed):
|
|
output = stream.getvalue()
|
|
orig_stderr.write(output)
|
|
orig_stderr.flush()
|
|
finally:
|
|
sys.stdout = orig_stdout
|
|
sys.stderr = orig_stderr
|
|
else:
|
|
# Tell tests to be moderately quiet
|
|
support.verbose = ns.verbose
|
|
|
|
result = _runtest_inner(ns, test_name,
|
|
display_failure=not ns.verbose)
|
|
|
|
if xml_list:
|
|
import xml.etree.ElementTree as ET
|
|
result.xml_data = [
|
|
ET.tostring(x).decode('us-ascii')
|
|
for x in xml_list
|
|
]
|
|
|
|
result.duration_sec = time.perf_counter() - start_time
|
|
return result
|
|
finally:
|
|
if use_timeout:
|
|
faulthandler.cancel_dump_traceback_later()
|
|
support.junit_xml_list = None
|
|
|
|
|
|
def runtest(ns: Namespace, test_name: str) -> TestResult:
|
|
"""Run a single test.
|
|
|
|
ns -- regrtest namespace of options
|
|
test_name -- the name of the test
|
|
|
|
Returns a TestResult sub-class depending on the kind of result received.
|
|
|
|
If ns.xmlpath is not None, xml_data is a list containing each
|
|
generated testsuite element.
|
|
"""
|
|
try:
|
|
return _runtest(ns, test_name)
|
|
except:
|
|
if not ns.pgo:
|
|
msg = traceback.format_exc()
|
|
print(f"test {test_name} crashed -- {msg}",
|
|
file=sys.stderr, flush=True)
|
|
return Failed(test_name)
|
|
|
|
|
|
def _test_module(the_module):
|
|
loader = unittest.TestLoader()
|
|
tests = loader.loadTestsFromModule(the_module)
|
|
for error in loader.errors:
|
|
print(error, file=sys.stderr)
|
|
if loader.errors:
|
|
raise Exception("errors while loading tests")
|
|
support.run_unittest(tests)
|
|
|
|
|
|
def save_env(ns: Namespace, test_name: str):
|
|
return saved_test_environment(test_name, ns.verbose, ns.quiet, pgo=ns.pgo)
|
|
|
|
|
|
def _runtest_inner2(ns: Namespace, test_name: str) -> bool:
|
|
# Load the test function, run the test function, handle huntrleaks
|
|
# and findleaks to detect leaks
|
|
|
|
abstest = get_abs_module(ns, test_name)
|
|
|
|
# remove the module from sys.module to reload it if it was already imported
|
|
try:
|
|
del sys.modules[abstest]
|
|
except KeyError:
|
|
pass
|
|
|
|
the_module = importlib.import_module(abstest)
|
|
|
|
if ns.huntrleaks:
|
|
from test.libregrtest.refleak import dash_R
|
|
|
|
# If the test has a test_main, that will run the appropriate
|
|
# tests. If not, use normal unittest test loading.
|
|
test_runner = getattr(the_module, "test_main", None)
|
|
if test_runner is None:
|
|
test_runner = functools.partial(_test_module, the_module)
|
|
|
|
try:
|
|
with save_env(ns, test_name):
|
|
if ns.huntrleaks:
|
|
# Return True if the test leaked references
|
|
refleak = dash_R(ns, test_name, test_runner)
|
|
else:
|
|
test_runner()
|
|
refleak = False
|
|
finally:
|
|
# First kill any dangling references to open files etc.
|
|
# This can also issue some ResourceWarnings which would otherwise get
|
|
# triggered during the following test run, and possibly produce
|
|
# failures.
|
|
support.gc_collect()
|
|
|
|
cleanup_test_droppings(test_name, ns.verbose)
|
|
|
|
if gc.garbage:
|
|
support.environment_altered = True
|
|
print_warning(f"{test_name} created {len(gc.garbage)} "
|
|
f"uncollectable object(s).")
|
|
|
|
# move the uncollectable objects somewhere,
|
|
# so we don't see them again
|
|
FOUND_GARBAGE.extend(gc.garbage)
|
|
gc.garbage.clear()
|
|
|
|
support.reap_children()
|
|
|
|
return refleak
|
|
|
|
|
|
def _runtest_inner(
|
|
ns: Namespace, test_name: str, display_failure: bool = True
|
|
) -> TestResult:
|
|
# Detect environment changes, handle exceptions.
|
|
|
|
# Reset the environment_altered flag to detect if a test altered
|
|
# the environment
|
|
support.environment_altered = False
|
|
|
|
if ns.pgo:
|
|
display_failure = False
|
|
|
|
try:
|
|
clear_caches()
|
|
support.gc_collect()
|
|
|
|
with save_env(ns, test_name):
|
|
refleak = _runtest_inner2(ns, test_name)
|
|
except support.ResourceDenied as msg:
|
|
if not ns.quiet and not ns.pgo:
|
|
print(f"{test_name} skipped -- {msg}", flush=True)
|
|
return ResourceDenied(test_name)
|
|
except unittest.SkipTest as msg:
|
|
if not ns.quiet and not ns.pgo:
|
|
print(f"{test_name} skipped -- {msg}", flush=True)
|
|
return Skipped(test_name)
|
|
except support.TestFailedWithDetails as exc:
|
|
msg = f"test {test_name} failed"
|
|
if display_failure:
|
|
msg = f"{msg} -- {exc}"
|
|
print(msg, file=sys.stderr, flush=True)
|
|
return Failed(test_name, errors=exc.errors, failures=exc.failures)
|
|
except support.TestFailed as exc:
|
|
msg = f"test {test_name} failed"
|
|
if display_failure:
|
|
msg = f"{msg} -- {exc}"
|
|
print(msg, file=sys.stderr, flush=True)
|
|
return Failed(test_name)
|
|
except support.TestDidNotRun:
|
|
return DidNotRun(test_name)
|
|
except KeyboardInterrupt:
|
|
print()
|
|
return Interrupted(test_name)
|
|
except:
|
|
if not ns.pgo:
|
|
msg = traceback.format_exc()
|
|
print(f"test {test_name} crashed -- {msg}",
|
|
file=sys.stderr, flush=True)
|
|
return UncaughtException(test_name)
|
|
|
|
if refleak:
|
|
return RefLeak(test_name)
|
|
if support.environment_altered:
|
|
return EnvChanged(test_name)
|
|
return Passed(test_name)
|
|
|
|
|
|
def cleanup_test_droppings(test_name: str, verbose: int) -> None:
|
|
# Try to clean up junk commonly left behind. While tests shouldn't leave
|
|
# any files or directories behind, when a test fails that can be tedious
|
|
# for it to arrange. The consequences can be especially nasty on Windows,
|
|
# since if a test leaves a file open, it cannot be deleted by name (while
|
|
# there's nothing we can do about that here either, we can display the
|
|
# name of the offending test, which is a real help).
|
|
for name in (os_helper.TESTFN,):
|
|
if not os.path.exists(name):
|
|
continue
|
|
|
|
if os.path.isdir(name):
|
|
import shutil
|
|
kind, nuker = "directory", shutil.rmtree
|
|
elif os.path.isfile(name):
|
|
kind, nuker = "file", os.unlink
|
|
else:
|
|
raise RuntimeError(f"os.path says {name!r} exists but is neither "
|
|
f"directory nor file")
|
|
|
|
if verbose:
|
|
print_warning(f"{test_name} left behind {kind} {name!r}")
|
|
support.environment_altered = True
|
|
|
|
try:
|
|
import stat
|
|
# fix possible permissions problems that might prevent cleanup
|
|
os.chmod(name, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
|
|
nuker(name)
|
|
except Exception as exc:
|
|
print_warning(f"{test_name} left behind {kind} {name!r} "
|
|
f"and it couldn't be removed: {exc}")
|