795 lines
28 KiB
Python
795 lines
28 KiB
Python
import _tracemalloc
|
|
import contextlib
|
|
import datetime
|
|
import os
|
|
import sys
|
|
import tracemalloc
|
|
import unittest
|
|
from unittest.mock import patch
|
|
from test.script_helper import assert_python_ok, assert_python_failure
|
|
from test import support
|
|
try:
|
|
import threading
|
|
except ImportError:
|
|
threading = None
|
|
|
|
EMPTY_STRING_SIZE = sys.getsizeof(b'')
|
|
|
|
def get_frames(nframe, lineno_delta):
|
|
frames = []
|
|
frame = sys._getframe(1)
|
|
for index in range(nframe):
|
|
code = frame.f_code
|
|
lineno = frame.f_lineno + lineno_delta
|
|
frames.append((code.co_filename, lineno))
|
|
lineno_delta = 0
|
|
frame = frame.f_back
|
|
if frame is None:
|
|
break
|
|
return tuple(frames)
|
|
|
|
def allocate_bytes(size):
|
|
nframe = tracemalloc.get_traceback_limit()
|
|
bytes_len = (size - EMPTY_STRING_SIZE)
|
|
frames = get_frames(nframe, 1)
|
|
data = b'x' * bytes_len
|
|
return data, tracemalloc.Traceback(frames)
|
|
|
|
def create_snapshots():
|
|
traceback_limit = 2
|
|
|
|
raw_traces = [
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
|
|
(2, (('a.py', 5), ('b.py', 4))),
|
|
|
|
(66, (('b.py', 1),)),
|
|
|
|
(7, (('<unknown>', 0),)),
|
|
]
|
|
snapshot = tracemalloc.Snapshot(raw_traces, traceback_limit)
|
|
|
|
raw_traces2 = [
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
|
|
(2, (('a.py', 5), ('b.py', 4))),
|
|
(5000, (('a.py', 5), ('b.py', 4))),
|
|
|
|
(400, (('c.py', 578),)),
|
|
]
|
|
snapshot2 = tracemalloc.Snapshot(raw_traces2, traceback_limit)
|
|
|
|
return (snapshot, snapshot2)
|
|
|
|
def frame(filename, lineno):
|
|
return tracemalloc._Frame((filename, lineno))
|
|
|
|
def traceback(*frames):
|
|
return tracemalloc.Traceback(frames)
|
|
|
|
def traceback_lineno(filename, lineno):
|
|
return traceback((filename, lineno))
|
|
|
|
def traceback_filename(filename):
|
|
return traceback_lineno(filename, 0)
|
|
|
|
|
|
class TestTracemallocEnabled(unittest.TestCase):
|
|
def setUp(self):
|
|
if tracemalloc.is_tracing():
|
|
self.skipTest("tracemalloc must be stopped before the test")
|
|
|
|
tracemalloc.start(1)
|
|
|
|
def tearDown(self):
|
|
tracemalloc.stop()
|
|
|
|
def test_get_tracemalloc_memory(self):
|
|
data = [allocate_bytes(123) for count in range(1000)]
|
|
size = tracemalloc.get_tracemalloc_memory()
|
|
self.assertGreaterEqual(size, 0)
|
|
|
|
tracemalloc.clear_traces()
|
|
size2 = tracemalloc.get_tracemalloc_memory()
|
|
self.assertGreaterEqual(size2, 0)
|
|
self.assertLessEqual(size2, size)
|
|
|
|
def test_get_object_traceback(self):
|
|
tracemalloc.clear_traces()
|
|
obj_size = 12345
|
|
obj, obj_traceback = allocate_bytes(obj_size)
|
|
traceback = tracemalloc.get_object_traceback(obj)
|
|
self.assertEqual(traceback, obj_traceback)
|
|
|
|
def test_set_traceback_limit(self):
|
|
obj_size = 10
|
|
|
|
tracemalloc.stop()
|
|
self.assertRaises(ValueError, tracemalloc.start, -1)
|
|
|
|
tracemalloc.stop()
|
|
tracemalloc.start(10)
|
|
obj2, obj2_traceback = allocate_bytes(obj_size)
|
|
traceback = tracemalloc.get_object_traceback(obj2)
|
|
self.assertEqual(len(traceback), 10)
|
|
self.assertEqual(traceback, obj2_traceback)
|
|
|
|
tracemalloc.stop()
|
|
tracemalloc.start(1)
|
|
obj, obj_traceback = allocate_bytes(obj_size)
|
|
traceback = tracemalloc.get_object_traceback(obj)
|
|
self.assertEqual(len(traceback), 1)
|
|
self.assertEqual(traceback, obj_traceback)
|
|
|
|
|
|
def find_trace(self, traces, traceback):
|
|
for trace in traces:
|
|
if trace[1] == traceback._frames:
|
|
return trace
|
|
|
|
self.fail("trace not found")
|
|
|
|
def test_get_traces(self):
|
|
tracemalloc.clear_traces()
|
|
obj_size = 12345
|
|
obj, obj_traceback = allocate_bytes(obj_size)
|
|
|
|
traces = tracemalloc._get_traces()
|
|
trace = self.find_trace(traces, obj_traceback)
|
|
|
|
self.assertIsInstance(trace, tuple)
|
|
size, traceback = trace
|
|
self.assertEqual(size, obj_size)
|
|
self.assertEqual(traceback, obj_traceback._frames)
|
|
|
|
tracemalloc.stop()
|
|
self.assertEqual(tracemalloc._get_traces(), [])
|
|
|
|
|
|
def test_get_traces_intern_traceback(self):
|
|
# dummy wrappers to get more useful and identical frames in the traceback
|
|
def allocate_bytes2(size):
|
|
return allocate_bytes(size)
|
|
def allocate_bytes3(size):
|
|
return allocate_bytes2(size)
|
|
def allocate_bytes4(size):
|
|
return allocate_bytes3(size)
|
|
|
|
# Ensure that two identical tracebacks are not duplicated
|
|
tracemalloc.stop()
|
|
tracemalloc.start(4)
|
|
obj_size = 123
|
|
obj1, obj1_traceback = allocate_bytes4(obj_size)
|
|
obj2, obj2_traceback = allocate_bytes4(obj_size)
|
|
|
|
traces = tracemalloc._get_traces()
|
|
|
|
trace1 = self.find_trace(traces, obj1_traceback)
|
|
trace2 = self.find_trace(traces, obj2_traceback)
|
|
size1, traceback1 = trace1
|
|
size2, traceback2 = trace2
|
|
self.assertEqual(traceback2, traceback1)
|
|
self.assertIs(traceback2, traceback1)
|
|
|
|
def test_get_traced_memory(self):
|
|
# Python allocates some internals objects, so the test must tolerate
|
|
# a small difference between the expected size and the real usage
|
|
max_error = 2048
|
|
|
|
# allocate one object
|
|
obj_size = 1024 * 1024
|
|
tracemalloc.clear_traces()
|
|
obj, obj_traceback = allocate_bytes(obj_size)
|
|
size, max_size = tracemalloc.get_traced_memory()
|
|
self.assertGreaterEqual(size, obj_size)
|
|
self.assertGreaterEqual(max_size, size)
|
|
|
|
self.assertLessEqual(size - obj_size, max_error)
|
|
self.assertLessEqual(max_size - size, max_error)
|
|
|
|
# destroy the object
|
|
obj = None
|
|
size2, max_size2 = tracemalloc.get_traced_memory()
|
|
self.assertLess(size2, size)
|
|
self.assertGreaterEqual(size - size2, obj_size - max_error)
|
|
self.assertGreaterEqual(max_size2, max_size)
|
|
|
|
# clear_traces() must reset traced memory counters
|
|
tracemalloc.clear_traces()
|
|
self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))
|
|
|
|
# allocate another object
|
|
obj, obj_traceback = allocate_bytes(obj_size)
|
|
size, max_size = tracemalloc.get_traced_memory()
|
|
self.assertGreater(size, 0)
|
|
|
|
# stop() rests also traced memory counters
|
|
tracemalloc.stop()
|
|
self.assertEqual(tracemalloc.get_traced_memory(), (0, 0))
|
|
|
|
def test_clear_traces(self):
|
|
obj, obj_traceback = allocate_bytes(123)
|
|
traceback = tracemalloc.get_object_traceback(obj)
|
|
self.assertIsNotNone(traceback)
|
|
|
|
tracemalloc.clear_traces()
|
|
traceback2 = tracemalloc.get_object_traceback(obj)
|
|
self.assertIsNone(traceback2)
|
|
|
|
def test_is_tracing(self):
|
|
tracemalloc.stop()
|
|
self.assertFalse(tracemalloc.is_tracing())
|
|
|
|
tracemalloc.start()
|
|
self.assertTrue(tracemalloc.is_tracing())
|
|
|
|
def test_snapshot(self):
|
|
obj, source = allocate_bytes(123)
|
|
|
|
# take a snapshot
|
|
snapshot = tracemalloc.take_snapshot()
|
|
|
|
# write on disk
|
|
snapshot.dump(support.TESTFN)
|
|
self.addCleanup(support.unlink, support.TESTFN)
|
|
|
|
# load from disk
|
|
snapshot2 = tracemalloc.Snapshot.load(support.TESTFN)
|
|
self.assertEqual(snapshot2.traces, snapshot.traces)
|
|
|
|
# tracemalloc must be tracing memory allocations to take a snapshot
|
|
tracemalloc.stop()
|
|
with self.assertRaises(RuntimeError) as cm:
|
|
tracemalloc.take_snapshot()
|
|
self.assertEqual(str(cm.exception),
|
|
"the tracemalloc module must be tracing memory "
|
|
"allocations to take a snapshot")
|
|
|
|
def test_snapshot_save_attr(self):
|
|
# take a snapshot with a new attribute
|
|
snapshot = tracemalloc.take_snapshot()
|
|
snapshot.test_attr = "new"
|
|
snapshot.dump(support.TESTFN)
|
|
self.addCleanup(support.unlink, support.TESTFN)
|
|
|
|
# load() should recreates the attribute
|
|
snapshot2 = tracemalloc.Snapshot.load(support.TESTFN)
|
|
self.assertEqual(snapshot2.test_attr, "new")
|
|
|
|
def fork_child(self):
|
|
if not tracemalloc.is_tracing():
|
|
return 2
|
|
|
|
obj_size = 12345
|
|
obj, obj_traceback = allocate_bytes(obj_size)
|
|
traceback = tracemalloc.get_object_traceback(obj)
|
|
if traceback is None:
|
|
return 3
|
|
|
|
# everything is fine
|
|
return 0
|
|
|
|
@unittest.skipUnless(hasattr(os, 'fork'), 'need os.fork()')
|
|
def test_fork(self):
|
|
# check that tracemalloc is still working after fork
|
|
pid = os.fork()
|
|
if not pid:
|
|
# child
|
|
exitcode = 1
|
|
try:
|
|
exitcode = self.fork_child()
|
|
finally:
|
|
os._exit(exitcode)
|
|
else:
|
|
pid2, status = os.waitpid(pid, 0)
|
|
self.assertTrue(os.WIFEXITED(status))
|
|
exitcode = os.WEXITSTATUS(status)
|
|
self.assertEqual(exitcode, 0)
|
|
|
|
|
|
class TestSnapshot(unittest.TestCase):
|
|
maxDiff = 4000
|
|
|
|
def test_create_snapshot(self):
|
|
raw_traces = [(5, (('a.py', 2),))]
|
|
|
|
with contextlib.ExitStack() as stack:
|
|
stack.enter_context(patch.object(tracemalloc, 'is_tracing',
|
|
return_value=True))
|
|
stack.enter_context(patch.object(tracemalloc, 'get_traceback_limit',
|
|
return_value=5))
|
|
stack.enter_context(patch.object(tracemalloc, '_get_traces',
|
|
return_value=raw_traces))
|
|
|
|
snapshot = tracemalloc.take_snapshot()
|
|
self.assertEqual(snapshot.traceback_limit, 5)
|
|
self.assertEqual(len(snapshot.traces), 1)
|
|
trace = snapshot.traces[0]
|
|
self.assertEqual(trace.size, 5)
|
|
self.assertEqual(len(trace.traceback), 1)
|
|
self.assertEqual(trace.traceback[0].filename, 'a.py')
|
|
self.assertEqual(trace.traceback[0].lineno, 2)
|
|
|
|
def test_filter_traces(self):
|
|
snapshot, snapshot2 = create_snapshots()
|
|
filter1 = tracemalloc.Filter(False, "b.py")
|
|
filter2 = tracemalloc.Filter(True, "a.py", 2)
|
|
filter3 = tracemalloc.Filter(True, "a.py", 5)
|
|
|
|
original_traces = list(snapshot.traces._traces)
|
|
|
|
# exclude b.py
|
|
snapshot3 = snapshot.filter_traces((filter1,))
|
|
self.assertEqual(snapshot3.traces._traces, [
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(2, (('a.py', 5), ('b.py', 4))),
|
|
(7, (('<unknown>', 0),)),
|
|
])
|
|
|
|
# filter_traces() must not touch the original snapshot
|
|
self.assertEqual(snapshot.traces._traces, original_traces)
|
|
|
|
# only include two lines of a.py
|
|
snapshot4 = snapshot3.filter_traces((filter2, filter3))
|
|
self.assertEqual(snapshot4.traces._traces, [
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(10, (('a.py', 2), ('b.py', 4))),
|
|
(2, (('a.py', 5), ('b.py', 4))),
|
|
])
|
|
|
|
# No filter: just duplicate the snapshot
|
|
snapshot5 = snapshot.filter_traces(())
|
|
self.assertIsNot(snapshot5, snapshot)
|
|
self.assertIsNot(snapshot5.traces, snapshot.traces)
|
|
self.assertEqual(snapshot5.traces, snapshot.traces)
|
|
|
|
def test_snapshot_group_by_line(self):
|
|
snapshot, snapshot2 = create_snapshots()
|
|
tb_0 = traceback_lineno('<unknown>', 0)
|
|
tb_a_2 = traceback_lineno('a.py', 2)
|
|
tb_a_5 = traceback_lineno('a.py', 5)
|
|
tb_b_1 = traceback_lineno('b.py', 1)
|
|
tb_c_578 = traceback_lineno('c.py', 578)
|
|
|
|
# stats per file and line
|
|
stats1 = snapshot.statistics('lineno')
|
|
self.assertEqual(stats1, [
|
|
tracemalloc.Statistic(tb_b_1, 66, 1),
|
|
tracemalloc.Statistic(tb_a_2, 30, 3),
|
|
tracemalloc.Statistic(tb_0, 7, 1),
|
|
tracemalloc.Statistic(tb_a_5, 2, 1),
|
|
])
|
|
|
|
# stats per file and line (2)
|
|
stats2 = snapshot2.statistics('lineno')
|
|
self.assertEqual(stats2, [
|
|
tracemalloc.Statistic(tb_a_5, 5002, 2),
|
|
tracemalloc.Statistic(tb_c_578, 400, 1),
|
|
tracemalloc.Statistic(tb_a_2, 30, 3),
|
|
])
|
|
|
|
# stats diff per file and line
|
|
statistics = snapshot2.compare_to(snapshot, 'lineno')
|
|
self.assertEqual(statistics, [
|
|
tracemalloc.StatisticDiff(tb_a_5, 5002, 5000, 2, 1),
|
|
tracemalloc.StatisticDiff(tb_c_578, 400, 400, 1, 1),
|
|
tracemalloc.StatisticDiff(tb_b_1, 0, -66, 0, -1),
|
|
tracemalloc.StatisticDiff(tb_0, 0, -7, 0, -1),
|
|
tracemalloc.StatisticDiff(tb_a_2, 30, 0, 3, 0),
|
|
])
|
|
|
|
def test_snapshot_group_by_file(self):
|
|
snapshot, snapshot2 = create_snapshots()
|
|
tb_0 = traceback_filename('<unknown>')
|
|
tb_a = traceback_filename('a.py')
|
|
tb_b = traceback_filename('b.py')
|
|
tb_c = traceback_filename('c.py')
|
|
|
|
# stats per file
|
|
stats1 = snapshot.statistics('filename')
|
|
self.assertEqual(stats1, [
|
|
tracemalloc.Statistic(tb_b, 66, 1),
|
|
tracemalloc.Statistic(tb_a, 32, 4),
|
|
tracemalloc.Statistic(tb_0, 7, 1),
|
|
])
|
|
|
|
# stats per file (2)
|
|
stats2 = snapshot2.statistics('filename')
|
|
self.assertEqual(stats2, [
|
|
tracemalloc.Statistic(tb_a, 5032, 5),
|
|
tracemalloc.Statistic(tb_c, 400, 1),
|
|
])
|
|
|
|
# stats diff per file
|
|
diff = snapshot2.compare_to(snapshot, 'filename')
|
|
self.assertEqual(diff, [
|
|
tracemalloc.StatisticDiff(tb_a, 5032, 5000, 5, 1),
|
|
tracemalloc.StatisticDiff(tb_c, 400, 400, 1, 1),
|
|
tracemalloc.StatisticDiff(tb_b, 0, -66, 0, -1),
|
|
tracemalloc.StatisticDiff(tb_0, 0, -7, 0, -1),
|
|
])
|
|
|
|
def test_snapshot_group_by_traceback(self):
|
|
snapshot, snapshot2 = create_snapshots()
|
|
|
|
# stats per file
|
|
tb1 = traceback(('a.py', 2), ('b.py', 4))
|
|
tb2 = traceback(('a.py', 5), ('b.py', 4))
|
|
tb3 = traceback(('b.py', 1))
|
|
tb4 = traceback(('<unknown>', 0))
|
|
stats1 = snapshot.statistics('traceback')
|
|
self.assertEqual(stats1, [
|
|
tracemalloc.Statistic(tb3, 66, 1),
|
|
tracemalloc.Statistic(tb1, 30, 3),
|
|
tracemalloc.Statistic(tb4, 7, 1),
|
|
tracemalloc.Statistic(tb2, 2, 1),
|
|
])
|
|
|
|
# stats per file (2)
|
|
tb5 = traceback(('c.py', 578))
|
|
stats2 = snapshot2.statistics('traceback')
|
|
self.assertEqual(stats2, [
|
|
tracemalloc.Statistic(tb2, 5002, 2),
|
|
tracemalloc.Statistic(tb5, 400, 1),
|
|
tracemalloc.Statistic(tb1, 30, 3),
|
|
])
|
|
|
|
# stats diff per file
|
|
diff = snapshot2.compare_to(snapshot, 'traceback')
|
|
self.assertEqual(diff, [
|
|
tracemalloc.StatisticDiff(tb2, 5002, 5000, 2, 1),
|
|
tracemalloc.StatisticDiff(tb5, 400, 400, 1, 1),
|
|
tracemalloc.StatisticDiff(tb3, 0, -66, 0, -1),
|
|
tracemalloc.StatisticDiff(tb4, 0, -7, 0, -1),
|
|
tracemalloc.StatisticDiff(tb1, 30, 0, 3, 0),
|
|
])
|
|
|
|
self.assertRaises(ValueError,
|
|
snapshot.statistics, 'traceback', cumulative=True)
|
|
|
|
def test_snapshot_group_by_cumulative(self):
|
|
snapshot, snapshot2 = create_snapshots()
|
|
tb_0 = traceback_filename('<unknown>')
|
|
tb_a = traceback_filename('a.py')
|
|
tb_b = traceback_filename('b.py')
|
|
tb_a_2 = traceback_lineno('a.py', 2)
|
|
tb_a_5 = traceback_lineno('a.py', 5)
|
|
tb_b_1 = traceback_lineno('b.py', 1)
|
|
tb_b_4 = traceback_lineno('b.py', 4)
|
|
|
|
# per file
|
|
stats = snapshot.statistics('filename', True)
|
|
self.assertEqual(stats, [
|
|
tracemalloc.Statistic(tb_b, 98, 5),
|
|
tracemalloc.Statistic(tb_a, 32, 4),
|
|
tracemalloc.Statistic(tb_0, 7, 1),
|
|
])
|
|
|
|
# per line
|
|
stats = snapshot.statistics('lineno', True)
|
|
self.assertEqual(stats, [
|
|
tracemalloc.Statistic(tb_b_1, 66, 1),
|
|
tracemalloc.Statistic(tb_b_4, 32, 4),
|
|
tracemalloc.Statistic(tb_a_2, 30, 3),
|
|
tracemalloc.Statistic(tb_0, 7, 1),
|
|
tracemalloc.Statistic(tb_a_5, 2, 1),
|
|
])
|
|
|
|
def test_trace_format(self):
|
|
snapshot, snapshot2 = create_snapshots()
|
|
trace = snapshot.traces[0]
|
|
self.assertEqual(str(trace), 'a.py:2: 10 B')
|
|
traceback = trace.traceback
|
|
self.assertEqual(str(traceback), 'a.py:2')
|
|
frame = traceback[0]
|
|
self.assertEqual(str(frame), 'a.py:2')
|
|
|
|
def test_statistic_format(self):
|
|
snapshot, snapshot2 = create_snapshots()
|
|
stats = snapshot.statistics('lineno')
|
|
stat = stats[0]
|
|
self.assertEqual(str(stat),
|
|
'b.py:1: size=66 B, count=1, average=66 B')
|
|
|
|
def test_statistic_diff_format(self):
|
|
snapshot, snapshot2 = create_snapshots()
|
|
stats = snapshot2.compare_to(snapshot, 'lineno')
|
|
stat = stats[0]
|
|
self.assertEqual(str(stat),
|
|
'a.py:5: size=5002 B (+5000 B), count=2 (+1), average=2501 B')
|
|
|
|
|
|
|
|
class TestFilters(unittest.TestCase):
|
|
maxDiff = 2048
|
|
|
|
def test_filter_attributes(self):
|
|
# test default values
|
|
f = tracemalloc.Filter(True, "abc")
|
|
self.assertEqual(f.inclusive, True)
|
|
self.assertEqual(f.filename_pattern, "abc")
|
|
self.assertIsNone(f.lineno)
|
|
self.assertEqual(f.all_frames, False)
|
|
|
|
# test custom values
|
|
f = tracemalloc.Filter(False, "test.py", 123, True)
|
|
self.assertEqual(f.inclusive, False)
|
|
self.assertEqual(f.filename_pattern, "test.py")
|
|
self.assertEqual(f.lineno, 123)
|
|
self.assertEqual(f.all_frames, True)
|
|
|
|
# parameters passed by keyword
|
|
f = tracemalloc.Filter(inclusive=False, filename_pattern="test.py", lineno=123, all_frames=True)
|
|
self.assertEqual(f.inclusive, False)
|
|
self.assertEqual(f.filename_pattern, "test.py")
|
|
self.assertEqual(f.lineno, 123)
|
|
self.assertEqual(f.all_frames, True)
|
|
|
|
# read-only attribute
|
|
self.assertRaises(AttributeError, setattr, f, "filename_pattern", "abc")
|
|
|
|
def test_filter_match(self):
|
|
# filter without line number
|
|
f = tracemalloc.Filter(True, "abc")
|
|
self.assertTrue(f._match_frame("abc", 0))
|
|
self.assertTrue(f._match_frame("abc", 5))
|
|
self.assertTrue(f._match_frame("abc", 10))
|
|
self.assertFalse(f._match_frame("12356", 0))
|
|
self.assertFalse(f._match_frame("12356", 5))
|
|
self.assertFalse(f._match_frame("12356", 10))
|
|
|
|
f = tracemalloc.Filter(False, "abc")
|
|
self.assertFalse(f._match_frame("abc", 0))
|
|
self.assertFalse(f._match_frame("abc", 5))
|
|
self.assertFalse(f._match_frame("abc", 10))
|
|
self.assertTrue(f._match_frame("12356", 0))
|
|
self.assertTrue(f._match_frame("12356", 5))
|
|
self.assertTrue(f._match_frame("12356", 10))
|
|
|
|
# filter with line number > 0
|
|
f = tracemalloc.Filter(True, "abc", 5)
|
|
self.assertFalse(f._match_frame("abc", 0))
|
|
self.assertTrue(f._match_frame("abc", 5))
|
|
self.assertFalse(f._match_frame("abc", 10))
|
|
self.assertFalse(f._match_frame("12356", 0))
|
|
self.assertFalse(f._match_frame("12356", 5))
|
|
self.assertFalse(f._match_frame("12356", 10))
|
|
|
|
f = tracemalloc.Filter(False, "abc", 5)
|
|
self.assertTrue(f._match_frame("abc", 0))
|
|
self.assertFalse(f._match_frame("abc", 5))
|
|
self.assertTrue(f._match_frame("abc", 10))
|
|
self.assertTrue(f._match_frame("12356", 0))
|
|
self.assertTrue(f._match_frame("12356", 5))
|
|
self.assertTrue(f._match_frame("12356", 10))
|
|
|
|
# filter with line number 0
|
|
f = tracemalloc.Filter(True, "abc", 0)
|
|
self.assertTrue(f._match_frame("abc", 0))
|
|
self.assertFalse(f._match_frame("abc", 5))
|
|
self.assertFalse(f._match_frame("abc", 10))
|
|
self.assertFalse(f._match_frame("12356", 0))
|
|
self.assertFalse(f._match_frame("12356", 5))
|
|
self.assertFalse(f._match_frame("12356", 10))
|
|
|
|
f = tracemalloc.Filter(False, "abc", 0)
|
|
self.assertFalse(f._match_frame("abc", 0))
|
|
self.assertTrue(f._match_frame("abc", 5))
|
|
self.assertTrue(f._match_frame("abc", 10))
|
|
self.assertTrue(f._match_frame("12356", 0))
|
|
self.assertTrue(f._match_frame("12356", 5))
|
|
self.assertTrue(f._match_frame("12356", 10))
|
|
|
|
def test_filter_match_filename(self):
|
|
def fnmatch(inclusive, filename, pattern):
|
|
f = tracemalloc.Filter(inclusive, pattern)
|
|
return f._match_frame(filename, 0)
|
|
|
|
self.assertTrue(fnmatch(True, "abc", "abc"))
|
|
self.assertFalse(fnmatch(True, "12356", "abc"))
|
|
self.assertFalse(fnmatch(True, "<unknown>", "abc"))
|
|
|
|
self.assertFalse(fnmatch(False, "abc", "abc"))
|
|
self.assertTrue(fnmatch(False, "12356", "abc"))
|
|
self.assertTrue(fnmatch(False, "<unknown>", "abc"))
|
|
|
|
def test_filter_match_filename_joker(self):
|
|
def fnmatch(filename, pattern):
|
|
filter = tracemalloc.Filter(True, pattern)
|
|
return filter._match_frame(filename, 0)
|
|
|
|
# empty string
|
|
self.assertFalse(fnmatch('abc', ''))
|
|
self.assertFalse(fnmatch('', 'abc'))
|
|
self.assertTrue(fnmatch('', ''))
|
|
self.assertTrue(fnmatch('', '*'))
|
|
|
|
# no *
|
|
self.assertTrue(fnmatch('abc', 'abc'))
|
|
self.assertFalse(fnmatch('abc', 'abcd'))
|
|
self.assertFalse(fnmatch('abc', 'def'))
|
|
|
|
# a*
|
|
self.assertTrue(fnmatch('abc', 'a*'))
|
|
self.assertTrue(fnmatch('abc', 'abc*'))
|
|
self.assertFalse(fnmatch('abc', 'b*'))
|
|
self.assertFalse(fnmatch('abc', 'abcd*'))
|
|
|
|
# a*b
|
|
self.assertTrue(fnmatch('abc', 'a*c'))
|
|
self.assertTrue(fnmatch('abcdcx', 'a*cx'))
|
|
self.assertFalse(fnmatch('abb', 'a*c'))
|
|
self.assertFalse(fnmatch('abcdce', 'a*cx'))
|
|
|
|
# a*b*c
|
|
self.assertTrue(fnmatch('abcde', 'a*c*e'))
|
|
self.assertTrue(fnmatch('abcbdefeg', 'a*bd*eg'))
|
|
self.assertFalse(fnmatch('abcdd', 'a*c*e'))
|
|
self.assertFalse(fnmatch('abcbdefef', 'a*bd*eg'))
|
|
|
|
# replace .pyc and .pyo suffix with .py
|
|
self.assertTrue(fnmatch('a.pyc', 'a.py'))
|
|
self.assertTrue(fnmatch('a.pyo', 'a.py'))
|
|
self.assertTrue(fnmatch('a.py', 'a.pyc'))
|
|
self.assertTrue(fnmatch('a.py', 'a.pyo'))
|
|
|
|
if os.name == 'nt':
|
|
# case insensitive
|
|
self.assertTrue(fnmatch('aBC', 'ABc'))
|
|
self.assertTrue(fnmatch('aBcDe', 'Ab*dE'))
|
|
|
|
self.assertTrue(fnmatch('a.pyc', 'a.PY'))
|
|
self.assertTrue(fnmatch('a.PYO', 'a.py'))
|
|
self.assertTrue(fnmatch('a.py', 'a.PYC'))
|
|
self.assertTrue(fnmatch('a.PY', 'a.pyo'))
|
|
else:
|
|
# case sensitive
|
|
self.assertFalse(fnmatch('aBC', 'ABc'))
|
|
self.assertFalse(fnmatch('aBcDe', 'Ab*dE'))
|
|
|
|
self.assertFalse(fnmatch('a.pyc', 'a.PY'))
|
|
self.assertFalse(fnmatch('a.PYO', 'a.py'))
|
|
self.assertFalse(fnmatch('a.py', 'a.PYC'))
|
|
self.assertFalse(fnmatch('a.PY', 'a.pyo'))
|
|
|
|
if os.name == 'nt':
|
|
# normalize alternate separator "/" to the standard separator "\"
|
|
self.assertTrue(fnmatch(r'a/b', r'a\b'))
|
|
self.assertTrue(fnmatch(r'a\b', r'a/b'))
|
|
self.assertTrue(fnmatch(r'a/b\c', r'a\b/c'))
|
|
self.assertTrue(fnmatch(r'a/b/c', r'a\b\c'))
|
|
else:
|
|
# there is no alternate separator
|
|
self.assertFalse(fnmatch(r'a/b', r'a\b'))
|
|
self.assertFalse(fnmatch(r'a\b', r'a/b'))
|
|
self.assertFalse(fnmatch(r'a/b\c', r'a\b/c'))
|
|
self.assertFalse(fnmatch(r'a/b/c', r'a\b\c'))
|
|
|
|
def test_filter_match_trace(self):
|
|
t1 = (("a.py", 2), ("b.py", 3))
|
|
t2 = (("b.py", 4), ("b.py", 5))
|
|
t3 = (("c.py", 5), ('<unknown>', 0))
|
|
unknown = (('<unknown>', 0),)
|
|
|
|
f = tracemalloc.Filter(True, "b.py", all_frames=True)
|
|
self.assertTrue(f._match_traceback(t1))
|
|
self.assertTrue(f._match_traceback(t2))
|
|
self.assertFalse(f._match_traceback(t3))
|
|
self.assertFalse(f._match_traceback(unknown))
|
|
|
|
f = tracemalloc.Filter(True, "b.py", all_frames=False)
|
|
self.assertFalse(f._match_traceback(t1))
|
|
self.assertTrue(f._match_traceback(t2))
|
|
self.assertFalse(f._match_traceback(t3))
|
|
self.assertFalse(f._match_traceback(unknown))
|
|
|
|
f = tracemalloc.Filter(False, "b.py", all_frames=True)
|
|
self.assertFalse(f._match_traceback(t1))
|
|
self.assertFalse(f._match_traceback(t2))
|
|
self.assertTrue(f._match_traceback(t3))
|
|
self.assertTrue(f._match_traceback(unknown))
|
|
|
|
f = tracemalloc.Filter(False, "b.py", all_frames=False)
|
|
self.assertTrue(f._match_traceback(t1))
|
|
self.assertFalse(f._match_traceback(t2))
|
|
self.assertTrue(f._match_traceback(t3))
|
|
self.assertTrue(f._match_traceback(unknown))
|
|
|
|
f = tracemalloc.Filter(False, "<unknown>", all_frames=False)
|
|
self.assertTrue(f._match_traceback(t1))
|
|
self.assertTrue(f._match_traceback(t2))
|
|
self.assertTrue(f._match_traceback(t3))
|
|
self.assertFalse(f._match_traceback(unknown))
|
|
|
|
f = tracemalloc.Filter(True, "<unknown>", all_frames=True)
|
|
self.assertFalse(f._match_traceback(t1))
|
|
self.assertFalse(f._match_traceback(t2))
|
|
self.assertTrue(f._match_traceback(t3))
|
|
self.assertTrue(f._match_traceback(unknown))
|
|
|
|
f = tracemalloc.Filter(False, "<unknown>", all_frames=True)
|
|
self.assertTrue(f._match_traceback(t1))
|
|
self.assertTrue(f._match_traceback(t2))
|
|
self.assertFalse(f._match_traceback(t3))
|
|
self.assertFalse(f._match_traceback(unknown))
|
|
|
|
|
|
class TestCommandLine(unittest.TestCase):
|
|
def test_env_var(self):
|
|
# not tracing by default
|
|
code = 'import tracemalloc; print(tracemalloc.is_tracing())'
|
|
ok, stdout, stderr = assert_python_ok('-c', code)
|
|
stdout = stdout.rstrip()
|
|
self.assertEqual(stdout, b'False')
|
|
|
|
# PYTHON* environment varibles must be ignored when -E option is
|
|
# present
|
|
code = 'import tracemalloc; print(tracemalloc.is_tracing())'
|
|
ok, stdout, stderr = assert_python_ok('-E', '-c', code, PYTHONTRACEMALLOC='1')
|
|
stdout = stdout.rstrip()
|
|
self.assertEqual(stdout, b'False')
|
|
|
|
# tracing at startup
|
|
code = 'import tracemalloc; print(tracemalloc.is_tracing())'
|
|
ok, stdout, stderr = assert_python_ok('-c', code, PYTHONTRACEMALLOC='1')
|
|
stdout = stdout.rstrip()
|
|
self.assertEqual(stdout, b'True')
|
|
|
|
# start and set the number of frames
|
|
code = 'import tracemalloc; print(tracemalloc.get_traceback_limit())'
|
|
ok, stdout, stderr = assert_python_ok('-c', code, PYTHONTRACEMALLOC='10')
|
|
stdout = stdout.rstrip()
|
|
self.assertEqual(stdout, b'10')
|
|
|
|
def test_env_var_invalid(self):
|
|
for nframe in (-1, 0, 5000):
|
|
with self.subTest(nframe=nframe):
|
|
with support.SuppressCrashReport():
|
|
ok, stdout, stderr = assert_python_failure(
|
|
'-c', 'pass',
|
|
PYTHONTRACEMALLOC=str(nframe))
|
|
self.assertIn(b'PYTHONTRACEMALLOC must be an integer '
|
|
b'in range [1; 100]',
|
|
stderr)
|
|
|
|
def test_sys_xoptions(self):
|
|
for xoptions, nframe in (
|
|
('tracemalloc', 1),
|
|
('tracemalloc=1', 1),
|
|
('tracemalloc=15', 15),
|
|
):
|
|
with self.subTest(xoptions=xoptions, nframe=nframe):
|
|
code = 'import tracemalloc; print(tracemalloc.get_traceback_limit())'
|
|
ok, stdout, stderr = assert_python_ok('-X', xoptions, '-c', code)
|
|
stdout = stdout.rstrip()
|
|
self.assertEqual(stdout, str(nframe).encode('ascii'))
|
|
|
|
def test_sys_xoptions_invalid(self):
|
|
for nframe in (-1, 0, 5000):
|
|
with self.subTest(nframe=nframe):
|
|
with support.SuppressCrashReport():
|
|
args = ('-X', 'tracemalloc=%s' % nframe, '-c', 'pass')
|
|
ok, stdout, stderr = assert_python_failure(*args)
|
|
self.assertIn(b'-X tracemalloc=NFRAME: number of frame must '
|
|
b'be an integer in range [1; 100]',
|
|
stderr)
|
|
|
|
|
|
def test_main():
|
|
support.run_unittest(
|
|
TestTracemallocEnabled,
|
|
TestSnapshot,
|
|
TestFilters,
|
|
TestCommandLine,
|
|
)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|