Repository navigation
Expand file tree
/
Copy pathruntest.py
More file actions
477 lines (398 loc) · 16 KB
/
Copy pathruntest.py
File metadata and controls
477 lines (398 loc) · 16 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
import dataclasses
import doctest
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 TestStats
from test.support import os_helper
from test.support import threading_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
# Avoid enum.Enum to reduce the number of imports when tests are run
class State:
PASSED = "PASSED"
FAILED = "FAILED"
SKIPPED = "SKIPPED"
UNCAUGHT_EXC = "UNCAUGHT_EXC"
REFLEAK = "REFLEAK"
ENV_CHANGED = "ENV_CHANGED"
RESOURCE_DENIED = "RESOURCE_DENIED"
INTERRUPTED = "INTERRUPTED"
MULTIPROCESSING_ERROR = "MULTIPROCESSING_ERROR"
DID_NOT_RUN = "DID_NOT_RUN"
TIMEOUT = "TIMEOUT"
@staticmethod
def is_failed(state):
return state in {
State.FAILED,
State.UNCAUGHT_EXC,
State.REFLEAK,
State.MULTIPROCESSING_ERROR,
State.TIMEOUT}
@staticmethod
def has_meaningful_duration(state):
# Consider that the duration is meaningless for these cases.
# For example, if a whole test file is skipped, its duration
# is unlikely to be the duration of executing its tests,
# but just the duration to execute code which skips the test.
return state not in {
State.SKIPPED,
State.RESOURCE_DENIED,
State.INTERRUPTED,
State.MULTIPROCESSING_ERROR,
State.DID_NOT_RUN}
@dataclasses.dataclass(slots=True)
class TestResult:
test_name: str
state: str | None = None
# Test duration in seconds
duration: float | None = None
xml_data: list[str] | None = None
stats: TestStats | None = None
# errors and failures copied from support.TestFailedWithDetails
errors: list[tuple[str, str]] | None = None
failures: list[tuple[str, str]] | None = None
def is_failed(self, fail_env_changed: bool) -> bool:
if self.state == State.ENV_CHANGED:
return fail_env_changed
return State.is_failed(self.state)
def _format_failed(self):
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.test_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.test_name} failed ({le} {error_s})"
if self.failures:
lf = len(self.failures)
failure_s = "failure" + ("s" if lf > 1 else "")
return f"{self.test_name} failed ({lf} {failure_s})"
return f"{self.test_name} failed"
def __str__(self) -> str:
match self.state:
case State.PASSED:
return f"{self.test_name} passed"
case State.FAILED:
return self._format_failed()
case State.SKIPPED:
return f"{self.test_name} skipped"
case State.UNCAUGHT_EXC:
return f"{self.test_name} failed (uncaught exception)"
case State.REFLEAK:
return f"{self.test_name} failed (reference leak)"
case State.ENV_CHANGED:
return f"{self.test_name} failed (env changed)"
case State.RESOURCE_DENIED:
return f"{self.test_name} skipped (resource denied)"
case State.INTERRUPTED:
return f"{self.test_name} interrupted"
case State.MULTIPROCESSING_ERROR:
return f"{self.test_name} process crashed"
case State.DID_NOT_RUN:
return f"{self.test_name} ran no tests"
case State.TIMEOUT:
return f"{self.test_name} timed out ({format_duration(self.duration)})"
case _:
raise ValueError("unknown result state: {state!r}")
def has_meaningful_duration(self):
return State.has_meaningful_duration(self.state)
def set_env_changed(self):
if self.state is None or self.state == State.PASSED:
self.state = State.ENV_CHANGED
# 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
#If these test directories are encountered recurse into them and treat each
# test_ .py or dir as a separate test module. This can increase parallelism.
# Beware this can't generally be done for any directory with sub-tests as the
# __init__.py may do things which alter what tests are to be run.
SPLITTESTDIRS = {
"test_asyncio",
"test_future_stmt",
"test_multiprocessing_fork",
"test_multiprocessing_forkserver",
"test_multiprocessing_spawn",
}
# Storage of uncollectable objects
FOUND_GARBAGE = []
def findtestdir(path=None):
return path or os.path.dirname(os.path.dirname(__file__)) or os.curdir
def findtests(*, testdir=None, exclude=(),
split_test_dirs=SPLITTESTDIRS, base_mod=""):
"""Return a list of all applicable test modules."""
testdir = findtestdir(testdir)
tests = []
for name in os.listdir(testdir):
mod, ext = os.path.splitext(name)
if (not mod.startswith("test_")) or (mod in exclude):
continue
if mod in split_test_dirs:
subdir = os.path.join(testdir, mod)
mod = f"{base_mod or 'test'}.{mod}"
tests.extend(findtests(testdir=subdir, exclude=exclude,
split_test_dirs=split_test_dirs, base_mod=mod))
elif ext in (".py", ""):
tests.append(f"{base_mod}.{mod}" if base_mod else mod)
return sorted(tests)
def split_test_packages(tests, *, testdir=None, exclude=(),
split_test_dirs=SPLITTESTDIRS):
testdir = findtestdir(testdir)
splitted = []
for name in tests:
if name in split_test_dirs:
subdir = os.path.join(testdir, name)
splitted.extend(findtests(testdir=subdir, exclude=exclude,
split_test_dirs=split_test_dirs,
base_mod=name))
else:
splitted.append(name)
return splitted
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_capture_output_timeout_junit(result: TestResult, ns: Namespace) -> None:
# Capture stdout and stderr, set faulthandler timeout,
# and create JUnit XML report.
output_on_failure = ns.verbose3
use_timeout = (
ns.timeout is not None and threading_helper.can_start_thread
)
if use_timeout:
faulthandler.dump_traceback_later(ns.timeout, exit=True)
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
print_warning = support.print_warning
orig_print_warnings_stderr = print_warning.orig_stderr
output = None
try:
sys.stdout = stream
sys.stderr = stream
# print_warning() writes into the temporary stream to preserve
# messages order. If support.environment_altered becomes true,
# warnings will be written to sys.stderr below.
print_warning.orig_stderr = stream
_runtest_env_changed_exc(result, ns, display_failure=False)
# Ignore output if the test passed successfully
if result.state != State.PASSED:
output = stream.getvalue()
finally:
sys.stdout = orig_stdout
sys.stderr = orig_stderr
print_warning.orig_stderr = orig_print_warnings_stderr
if output is not None:
sys.stderr.write(output)
sys.stderr.flush()
else:
# Tell tests to be moderately quiet
support.verbose = ns.verbose
_runtest_env_changed_exc(result, ns,
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]
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.
If ns.xmlpath is not None, xml_data is a list containing each
generated testsuite element.
"""
start_time = time.perf_counter()
result = TestResult(test_name)
try:
_runtest_capture_output_timeout_junit(result, ns)
except:
if not ns.pgo:
msg = traceback.format_exc()
print(f"test {test_name} crashed -- {msg}",
file=sys.stderr, flush=True)
result.state = State.UNCAUGHT_EXC
result.duration = time.perf_counter() - start_time
return result
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")
return 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 regrtest_runner(result, test_func, ns) -> None:
# Run test_func(), collect statistics, and detect reference and memory
# leaks.
if ns.huntrleaks:
from test.libregrtest.refleak import dash_R
refleak, test_result = dash_R(ns, result.test_name, test_func)
else:
test_result = test_func()
refleak = False
if refleak:
result.state = State.REFLEAK
match test_result:
case TestStats():
stats = test_result
case unittest.TestResult():
stats = TestStats.from_unittest(test_result)
case doctest.TestResults():
stats = TestStats.from_doctest(test_result)
case None:
print_warning(f"{result.test_name} test runner returned None: {test_func}")
stats = None
case _:
print_warning(f"Unknown test result type: {type(test_result)}")
stats = None
result.stats = stats
def _load_run_test(result: TestResult, ns: Namespace) -> None:
# Load the test function, run the test function.
abstest = get_abs_module(ns, result.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 hasattr(the_module, "test_main"):
# https://github.com/python/cpython/issues/89392
raise Exception(f"Module {result.test_name} defines test_main() which is no longer supported by regrtest")
test_func = functools.partial(_test_module, the_module)
try:
with save_env(ns, result.test_name):
regrtest_runner(result, test_func, ns)
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(result.test_name, ns.verbose)
if gc.garbage:
support.environment_altered = True
print_warning(f"{result.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()
def _runtest_env_changed_exc(result: TestResult, ns: Namespace,
display_failure: bool = True) -> None:
# 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
test_name = result.test_name
try:
clear_caches()
support.gc_collect()
with save_env(ns, test_name):
_load_run_test(result, ns)
except support.ResourceDenied as msg:
if not ns.quiet and not ns.pgo:
print(f"{test_name} skipped -- {msg}", flush=True)
result.state = State.RESOURCE_DENIED
return
except unittest.SkipTest as msg:
if not ns.quiet and not ns.pgo:
print(f"{test_name} skipped -- {msg}", flush=True)
result.state = State.SKIPPED
return
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)
result.state = State.FAILED
result.errors = exc.errors
result.failures = exc.failures
result.stats = exc.stats
return
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)
result.state = State.FAILED
result.stats = exc.stats
return
except support.TestDidNotRun:
result.state = State.DID_NOT_RUN
return
except KeyboardInterrupt:
print()
result.state = State.INTERRUPTED
return
except:
if not ns.pgo:
msg = traceback.format_exc()
print(f"test {test_name} crashed -- {msg}",
file=sys.stderr, flush=True)
result.state = State.UNCAUGHT_EXC
return
if support.environment_altered:
result.set_env_changed()
# Don't override the state if it was already set (REFLEAK or ENV_CHANGED)
if result.state is None:
result.state = State.PASSED
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}")