Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 1 | import contextlib |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 2 | import os |
| 3 | import sys |
| 4 | import tracemalloc |
| 5 | import unittest |
| 6 | from unittest.mock import patch |
Berker Peksag | ce64391 | 2015-05-06 06:33:17 +0300 | [diff] [blame] | 7 | from test.support.script_helper import (assert_python_ok, assert_python_failure, |
| 8 | interpreter_requires_environment) |
| 9 | from test import support |
Antoine Pitrou | a6a4dc8 | 2017-09-07 18:56:24 +0200 | [diff] [blame] | 10 | |
Victor Stinner | 10b73e1 | 2016-03-22 13:39:05 +0100 | [diff] [blame] | 11 | try: |
| 12 | import _testcapi |
| 13 | except ImportError: |
| 14 | _testcapi = None |
| 15 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 16 | |
| 17 | EMPTY_STRING_SIZE = sys.getsizeof(b'') |
Victor Stinner | 60b04c9 | 2018-07-25 19:23:53 +0200 | [diff] [blame] | 18 | INVALID_NFRAME = (-1, 2**30) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 19 | |
Victor Stinner | 10b73e1 | 2016-03-22 13:39:05 +0100 | [diff] [blame] | 20 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 21 | def get_frames(nframe, lineno_delta): |
| 22 | frames = [] |
| 23 | frame = sys._getframe(1) |
| 24 | for index in range(nframe): |
| 25 | code = frame.f_code |
| 26 | lineno = frame.f_lineno + lineno_delta |
| 27 | frames.append((code.co_filename, lineno)) |
| 28 | lineno_delta = 0 |
| 29 | frame = frame.f_back |
| 30 | if frame is None: |
| 31 | break |
| 32 | return tuple(frames) |
| 33 | |
| 34 | def allocate_bytes(size): |
| 35 | nframe = tracemalloc.get_traceback_limit() |
| 36 | bytes_len = (size - EMPTY_STRING_SIZE) |
| 37 | frames = get_frames(nframe, 1) |
| 38 | data = b'x' * bytes_len |
| 39 | return data, tracemalloc.Traceback(frames) |
| 40 | |
| 41 | def create_snapshots(): |
| 42 | traceback_limit = 2 |
| 43 | |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 44 | # _tracemalloc._get_traces() returns a list of (domain, size, |
| 45 | # traceback_frames) tuples. traceback_frames is a tuple of (filename, |
| 46 | # line_number) tuples. |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 47 | raw_traces = [ |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 48 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 49 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 50 | (0, 10, (('a.py', 2), ('b.py', 4))), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 51 | |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 52 | (1, 2, (('a.py', 5), ('b.py', 4))), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 53 | |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 54 | (2, 66, (('b.py', 1),)), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 55 | |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 56 | (3, 7, (('<unknown>', 0),)), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 57 | ] |
| 58 | snapshot = tracemalloc.Snapshot(raw_traces, traceback_limit) |
| 59 | |
| 60 | raw_traces2 = [ |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 61 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 62 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 63 | (0, 10, (('a.py', 2), ('b.py', 4))), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 64 | |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 65 | (2, 2, (('a.py', 5), ('b.py', 4))), |
| 66 | (2, 5000, (('a.py', 5), ('b.py', 4))), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 67 | |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 68 | (4, 400, (('c.py', 578),)), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 69 | ] |
| 70 | snapshot2 = tracemalloc.Snapshot(raw_traces2, traceback_limit) |
| 71 | |
| 72 | return (snapshot, snapshot2) |
| 73 | |
| 74 | def frame(filename, lineno): |
| 75 | return tracemalloc._Frame((filename, lineno)) |
| 76 | |
| 77 | def traceback(*frames): |
| 78 | return tracemalloc.Traceback(frames) |
| 79 | |
| 80 | def traceback_lineno(filename, lineno): |
| 81 | return traceback((filename, lineno)) |
| 82 | |
| 83 | def traceback_filename(filename): |
| 84 | return traceback_lineno(filename, 0) |
| 85 | |
| 86 | |
| 87 | class TestTracemallocEnabled(unittest.TestCase): |
| 88 | def setUp(self): |
| 89 | if tracemalloc.is_tracing(): |
| 90 | self.skipTest("tracemalloc must be stopped before the test") |
| 91 | |
Victor Stinner | 3728d6c | 2013-11-23 12:37:20 +0100 | [diff] [blame] | 92 | tracemalloc.start(1) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 93 | |
| 94 | def tearDown(self): |
| 95 | tracemalloc.stop() |
| 96 | |
| 97 | def test_get_tracemalloc_memory(self): |
| 98 | data = [allocate_bytes(123) for count in range(1000)] |
| 99 | size = tracemalloc.get_tracemalloc_memory() |
| 100 | self.assertGreaterEqual(size, 0) |
| 101 | |
| 102 | tracemalloc.clear_traces() |
| 103 | size2 = tracemalloc.get_tracemalloc_memory() |
| 104 | self.assertGreaterEqual(size2, 0) |
| 105 | self.assertLessEqual(size2, size) |
| 106 | |
| 107 | def test_get_object_traceback(self): |
| 108 | tracemalloc.clear_traces() |
| 109 | obj_size = 12345 |
| 110 | obj, obj_traceback = allocate_bytes(obj_size) |
| 111 | traceback = tracemalloc.get_object_traceback(obj) |
| 112 | self.assertEqual(traceback, obj_traceback) |
| 113 | |
Victor Stinner | 9e00e80 | 2018-10-25 13:31:16 +0200 | [diff] [blame] | 114 | def test_new_reference(self): |
| 115 | tracemalloc.clear_traces() |
| 116 | # gc.collect() indirectly calls PyList_ClearFreeList() |
| 117 | support.gc_collect() |
| 118 | |
| 119 | # Create a list and "destroy it": put it in the PyListObject free list |
| 120 | obj = [] |
| 121 | obj = None |
| 122 | |
| 123 | # Create a list which should reuse the previously created empty list |
| 124 | obj = [] |
| 125 | |
| 126 | nframe = tracemalloc.get_traceback_limit() |
| 127 | frames = get_frames(nframe, -3) |
| 128 | obj_traceback = tracemalloc.Traceback(frames) |
| 129 | |
| 130 | traceback = tracemalloc.get_object_traceback(obj) |
| 131 | self.assertIsNotNone(traceback) |
| 132 | self.assertEqual(traceback, obj_traceback) |
| 133 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 134 | def test_set_traceback_limit(self): |
| 135 | obj_size = 10 |
| 136 | |
Victor Stinner | 3728d6c | 2013-11-23 12:37:20 +0100 | [diff] [blame] | 137 | tracemalloc.stop() |
| 138 | self.assertRaises(ValueError, tracemalloc.start, -1) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 139 | |
Victor Stinner | 3728d6c | 2013-11-23 12:37:20 +0100 | [diff] [blame] | 140 | tracemalloc.stop() |
| 141 | tracemalloc.start(10) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 142 | obj2, obj2_traceback = allocate_bytes(obj_size) |
| 143 | traceback = tracemalloc.get_object_traceback(obj2) |
| 144 | self.assertEqual(len(traceback), 10) |
| 145 | self.assertEqual(traceback, obj2_traceback) |
| 146 | |
Victor Stinner | 3728d6c | 2013-11-23 12:37:20 +0100 | [diff] [blame] | 147 | tracemalloc.stop() |
| 148 | tracemalloc.start(1) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 149 | obj, obj_traceback = allocate_bytes(obj_size) |
| 150 | traceback = tracemalloc.get_object_traceback(obj) |
| 151 | self.assertEqual(len(traceback), 1) |
| 152 | self.assertEqual(traceback, obj_traceback) |
| 153 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 154 | def find_trace(self, traces, traceback): |
| 155 | for trace in traces: |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 156 | if trace[2] == traceback._frames: |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 157 | return trace |
| 158 | |
| 159 | self.fail("trace not found") |
| 160 | |
| 161 | def test_get_traces(self): |
| 162 | tracemalloc.clear_traces() |
| 163 | obj_size = 12345 |
| 164 | obj, obj_traceback = allocate_bytes(obj_size) |
| 165 | |
| 166 | traces = tracemalloc._get_traces() |
| 167 | trace = self.find_trace(traces, obj_traceback) |
| 168 | |
| 169 | self.assertIsInstance(trace, tuple) |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 170 | domain, size, traceback = trace |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 171 | self.assertEqual(size, obj_size) |
| 172 | self.assertEqual(traceback, obj_traceback._frames) |
| 173 | |
| 174 | tracemalloc.stop() |
| 175 | self.assertEqual(tracemalloc._get_traces(), []) |
| 176 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 177 | def test_get_traces_intern_traceback(self): |
| 178 | # dummy wrappers to get more useful and identical frames in the traceback |
| 179 | def allocate_bytes2(size): |
| 180 | return allocate_bytes(size) |
| 181 | def allocate_bytes3(size): |
| 182 | return allocate_bytes2(size) |
| 183 | def allocate_bytes4(size): |
| 184 | return allocate_bytes3(size) |
| 185 | |
| 186 | # Ensure that two identical tracebacks are not duplicated |
Victor Stinner | 3728d6c | 2013-11-23 12:37:20 +0100 | [diff] [blame] | 187 | tracemalloc.stop() |
| 188 | tracemalloc.start(4) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 189 | obj_size = 123 |
| 190 | obj1, obj1_traceback = allocate_bytes4(obj_size) |
| 191 | obj2, obj2_traceback = allocate_bytes4(obj_size) |
| 192 | |
| 193 | traces = tracemalloc._get_traces() |
| 194 | |
Jesse-Bakker | 706e10b | 2017-11-30 00:05:07 +0100 | [diff] [blame] | 195 | obj1_traceback._frames = tuple(reversed(obj1_traceback._frames)) |
| 196 | obj2_traceback._frames = tuple(reversed(obj2_traceback._frames)) |
| 197 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 198 | trace1 = self.find_trace(traces, obj1_traceback) |
| 199 | trace2 = self.find_trace(traces, obj2_traceback) |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 200 | domain1, size1, traceback1 = trace1 |
| 201 | domain2, size2, traceback2 = trace2 |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 202 | self.assertIs(traceback2, traceback1) |
| 203 | |
| 204 | def test_get_traced_memory(self): |
| 205 | # Python allocates some internals objects, so the test must tolerate |
| 206 | # a small difference between the expected size and the real usage |
| 207 | max_error = 2048 |
| 208 | |
| 209 | # allocate one object |
| 210 | obj_size = 1024 * 1024 |
| 211 | tracemalloc.clear_traces() |
| 212 | obj, obj_traceback = allocate_bytes(obj_size) |
Victor Stinner | 3c0481d | 2013-11-27 21:39:49 +0100 | [diff] [blame] | 213 | size, peak_size = tracemalloc.get_traced_memory() |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 214 | self.assertGreaterEqual(size, obj_size) |
Victor Stinner | 3c0481d | 2013-11-27 21:39:49 +0100 | [diff] [blame] | 215 | self.assertGreaterEqual(peak_size, size) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 216 | |
| 217 | self.assertLessEqual(size - obj_size, max_error) |
Victor Stinner | 3c0481d | 2013-11-27 21:39:49 +0100 | [diff] [blame] | 218 | self.assertLessEqual(peak_size - size, max_error) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 219 | |
| 220 | # destroy the object |
| 221 | obj = None |
Victor Stinner | 3c0481d | 2013-11-27 21:39:49 +0100 | [diff] [blame] | 222 | size2, peak_size2 = tracemalloc.get_traced_memory() |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 223 | self.assertLess(size2, size) |
| 224 | self.assertGreaterEqual(size - size2, obj_size - max_error) |
Victor Stinner | 3c0481d | 2013-11-27 21:39:49 +0100 | [diff] [blame] | 225 | self.assertGreaterEqual(peak_size2, peak_size) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 226 | |
| 227 | # clear_traces() must reset traced memory counters |
| 228 | tracemalloc.clear_traces() |
| 229 | self.assertEqual(tracemalloc.get_traced_memory(), (0, 0)) |
| 230 | |
| 231 | # allocate another object |
| 232 | obj, obj_traceback = allocate_bytes(obj_size) |
Victor Stinner | 3c0481d | 2013-11-27 21:39:49 +0100 | [diff] [blame] | 233 | size, peak_size = tracemalloc.get_traced_memory() |
| 234 | self.assertGreaterEqual(size, obj_size) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 235 | |
Victor Stinner | a89ecc7 | 2013-11-25 09:29:45 +0100 | [diff] [blame] | 236 | # stop() also resets traced memory counters |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 237 | tracemalloc.stop() |
| 238 | self.assertEqual(tracemalloc.get_traced_memory(), (0, 0)) |
| 239 | |
| 240 | def test_clear_traces(self): |
| 241 | obj, obj_traceback = allocate_bytes(123) |
| 242 | traceback = tracemalloc.get_object_traceback(obj) |
| 243 | self.assertIsNotNone(traceback) |
| 244 | |
| 245 | tracemalloc.clear_traces() |
| 246 | traceback2 = tracemalloc.get_object_traceback(obj) |
| 247 | self.assertIsNone(traceback2) |
| 248 | |
| 249 | def test_is_tracing(self): |
| 250 | tracemalloc.stop() |
| 251 | self.assertFalse(tracemalloc.is_tracing()) |
| 252 | |
| 253 | tracemalloc.start() |
| 254 | self.assertTrue(tracemalloc.is_tracing()) |
| 255 | |
| 256 | def test_snapshot(self): |
| 257 | obj, source = allocate_bytes(123) |
| 258 | |
| 259 | # take a snapshot |
| 260 | snapshot = tracemalloc.take_snapshot() |
| 261 | |
| 262 | # write on disk |
| 263 | snapshot.dump(support.TESTFN) |
| 264 | self.addCleanup(support.unlink, support.TESTFN) |
| 265 | |
| 266 | # load from disk |
| 267 | snapshot2 = tracemalloc.Snapshot.load(support.TESTFN) |
| 268 | self.assertEqual(snapshot2.traces, snapshot.traces) |
| 269 | |
| 270 | # tracemalloc must be tracing memory allocations to take a snapshot |
| 271 | tracemalloc.stop() |
| 272 | with self.assertRaises(RuntimeError) as cm: |
| 273 | tracemalloc.take_snapshot() |
| 274 | self.assertEqual(str(cm.exception), |
| 275 | "the tracemalloc module must be tracing memory " |
| 276 | "allocations to take a snapshot") |
| 277 | |
| 278 | def test_snapshot_save_attr(self): |
| 279 | # take a snapshot with a new attribute |
| 280 | snapshot = tracemalloc.take_snapshot() |
| 281 | snapshot.test_attr = "new" |
| 282 | snapshot.dump(support.TESTFN) |
| 283 | self.addCleanup(support.unlink, support.TESTFN) |
| 284 | |
Martin Panter | 8f26565 | 2016-04-19 04:03:41 +0000 | [diff] [blame] | 285 | # load() should recreate the attribute |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 286 | snapshot2 = tracemalloc.Snapshot.load(support.TESTFN) |
| 287 | self.assertEqual(snapshot2.test_attr, "new") |
| 288 | |
| 289 | def fork_child(self): |
| 290 | if not tracemalloc.is_tracing(): |
| 291 | return 2 |
| 292 | |
| 293 | obj_size = 12345 |
| 294 | obj, obj_traceback = allocate_bytes(obj_size) |
| 295 | traceback = tracemalloc.get_object_traceback(obj) |
| 296 | if traceback is None: |
| 297 | return 3 |
| 298 | |
| 299 | # everything is fine |
| 300 | return 0 |
| 301 | |
| 302 | @unittest.skipUnless(hasattr(os, 'fork'), 'need os.fork()') |
| 303 | def test_fork(self): |
| 304 | # check that tracemalloc is still working after fork |
| 305 | pid = os.fork() |
| 306 | if not pid: |
| 307 | # child |
| 308 | exitcode = 1 |
| 309 | try: |
| 310 | exitcode = self.fork_child() |
| 311 | finally: |
| 312 | os._exit(exitcode) |
| 313 | else: |
| 314 | pid2, status = os.waitpid(pid, 0) |
| 315 | self.assertTrue(os.WIFEXITED(status)) |
| 316 | exitcode = os.WEXITSTATUS(status) |
| 317 | self.assertEqual(exitcode, 0) |
| 318 | |
| 319 | |
| 320 | class TestSnapshot(unittest.TestCase): |
| 321 | maxDiff = 4000 |
| 322 | |
| 323 | def test_create_snapshot(self): |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 324 | raw_traces = [(0, 5, (('a.py', 2),))] |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 325 | |
| 326 | with contextlib.ExitStack() as stack: |
| 327 | stack.enter_context(patch.object(tracemalloc, 'is_tracing', |
| 328 | return_value=True)) |
| 329 | stack.enter_context(patch.object(tracemalloc, 'get_traceback_limit', |
| 330 | return_value=5)) |
| 331 | stack.enter_context(patch.object(tracemalloc, '_get_traces', |
| 332 | return_value=raw_traces)) |
| 333 | |
| 334 | snapshot = tracemalloc.take_snapshot() |
| 335 | self.assertEqual(snapshot.traceback_limit, 5) |
| 336 | self.assertEqual(len(snapshot.traces), 1) |
| 337 | trace = snapshot.traces[0] |
| 338 | self.assertEqual(trace.size, 5) |
| 339 | self.assertEqual(len(trace.traceback), 1) |
| 340 | self.assertEqual(trace.traceback[0].filename, 'a.py') |
| 341 | self.assertEqual(trace.traceback[0].lineno, 2) |
| 342 | |
| 343 | def test_filter_traces(self): |
| 344 | snapshot, snapshot2 = create_snapshots() |
| 345 | filter1 = tracemalloc.Filter(False, "b.py") |
| 346 | filter2 = tracemalloc.Filter(True, "a.py", 2) |
| 347 | filter3 = tracemalloc.Filter(True, "a.py", 5) |
| 348 | |
| 349 | original_traces = list(snapshot.traces._traces) |
| 350 | |
| 351 | # exclude b.py |
| 352 | snapshot3 = snapshot.filter_traces((filter1,)) |
| 353 | self.assertEqual(snapshot3.traces._traces, [ |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 354 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 355 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 356 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 357 | (1, 2, (('a.py', 5), ('b.py', 4))), |
| 358 | (3, 7, (('<unknown>', 0),)), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 359 | ]) |
| 360 | |
| 361 | # filter_traces() must not touch the original snapshot |
| 362 | self.assertEqual(snapshot.traces._traces, original_traces) |
| 363 | |
| 364 | # only include two lines of a.py |
| 365 | snapshot4 = snapshot3.filter_traces((filter2, filter3)) |
| 366 | self.assertEqual(snapshot4.traces._traces, [ |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 367 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 368 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 369 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 370 | (1, 2, (('a.py', 5), ('b.py', 4))), |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 371 | ]) |
| 372 | |
| 373 | # No filter: just duplicate the snapshot |
| 374 | snapshot5 = snapshot.filter_traces(()) |
| 375 | self.assertIsNot(snapshot5, snapshot) |
| 376 | self.assertIsNot(snapshot5.traces, snapshot.traces) |
| 377 | self.assertEqual(snapshot5.traces, snapshot.traces) |
| 378 | |
Victor Stinner | 8ce8ff9 | 2014-03-10 11:05:07 +0100 | [diff] [blame] | 379 | self.assertRaises(TypeError, snapshot.filter_traces, filter1) |
| 380 | |
Victor Stinner | e492ae5 | 2016-03-22 12:58:23 +0100 | [diff] [blame] | 381 | def test_filter_traces_domain(self): |
| 382 | snapshot, snapshot2 = create_snapshots() |
| 383 | filter1 = tracemalloc.Filter(False, "a.py", domain=1) |
| 384 | filter2 = tracemalloc.Filter(True, "a.py", domain=1) |
| 385 | |
| 386 | original_traces = list(snapshot.traces._traces) |
| 387 | |
| 388 | # exclude a.py of domain 1 |
| 389 | snapshot3 = snapshot.filter_traces((filter1,)) |
| 390 | self.assertEqual(snapshot3.traces._traces, [ |
| 391 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 392 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 393 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 394 | (2, 66, (('b.py', 1),)), |
| 395 | (3, 7, (('<unknown>', 0),)), |
| 396 | ]) |
| 397 | |
| 398 | # include domain 1 |
| 399 | snapshot3 = snapshot.filter_traces((filter1,)) |
| 400 | self.assertEqual(snapshot3.traces._traces, [ |
| 401 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 402 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 403 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 404 | (2, 66, (('b.py', 1),)), |
| 405 | (3, 7, (('<unknown>', 0),)), |
| 406 | ]) |
| 407 | |
| 408 | def test_filter_traces_domain_filter(self): |
| 409 | snapshot, snapshot2 = create_snapshots() |
| 410 | filter1 = tracemalloc.DomainFilter(False, domain=3) |
| 411 | filter2 = tracemalloc.DomainFilter(True, domain=3) |
| 412 | |
| 413 | # exclude domain 2 |
| 414 | snapshot3 = snapshot.filter_traces((filter1,)) |
| 415 | self.assertEqual(snapshot3.traces._traces, [ |
| 416 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 417 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 418 | (0, 10, (('a.py', 2), ('b.py', 4))), |
| 419 | (1, 2, (('a.py', 5), ('b.py', 4))), |
| 420 | (2, 66, (('b.py', 1),)), |
| 421 | ]) |
| 422 | |
| 423 | # include domain 2 |
| 424 | snapshot3 = snapshot.filter_traces((filter2,)) |
| 425 | self.assertEqual(snapshot3.traces._traces, [ |
| 426 | (3, 7, (('<unknown>', 0),)), |
| 427 | ]) |
| 428 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 429 | def test_snapshot_group_by_line(self): |
| 430 | snapshot, snapshot2 = create_snapshots() |
| 431 | tb_0 = traceback_lineno('<unknown>', 0) |
| 432 | tb_a_2 = traceback_lineno('a.py', 2) |
| 433 | tb_a_5 = traceback_lineno('a.py', 5) |
| 434 | tb_b_1 = traceback_lineno('b.py', 1) |
| 435 | tb_c_578 = traceback_lineno('c.py', 578) |
| 436 | |
| 437 | # stats per file and line |
| 438 | stats1 = snapshot.statistics('lineno') |
| 439 | self.assertEqual(stats1, [ |
| 440 | tracemalloc.Statistic(tb_b_1, 66, 1), |
| 441 | tracemalloc.Statistic(tb_a_2, 30, 3), |
| 442 | tracemalloc.Statistic(tb_0, 7, 1), |
| 443 | tracemalloc.Statistic(tb_a_5, 2, 1), |
| 444 | ]) |
| 445 | |
| 446 | # stats per file and line (2) |
| 447 | stats2 = snapshot2.statistics('lineno') |
| 448 | self.assertEqual(stats2, [ |
| 449 | tracemalloc.Statistic(tb_a_5, 5002, 2), |
| 450 | tracemalloc.Statistic(tb_c_578, 400, 1), |
| 451 | tracemalloc.Statistic(tb_a_2, 30, 3), |
| 452 | ]) |
| 453 | |
| 454 | # stats diff per file and line |
| 455 | statistics = snapshot2.compare_to(snapshot, 'lineno') |
| 456 | self.assertEqual(statistics, [ |
| 457 | tracemalloc.StatisticDiff(tb_a_5, 5002, 5000, 2, 1), |
| 458 | tracemalloc.StatisticDiff(tb_c_578, 400, 400, 1, 1), |
| 459 | tracemalloc.StatisticDiff(tb_b_1, 0, -66, 0, -1), |
| 460 | tracemalloc.StatisticDiff(tb_0, 0, -7, 0, -1), |
| 461 | tracemalloc.StatisticDiff(tb_a_2, 30, 0, 3, 0), |
| 462 | ]) |
| 463 | |
| 464 | def test_snapshot_group_by_file(self): |
| 465 | snapshot, snapshot2 = create_snapshots() |
| 466 | tb_0 = traceback_filename('<unknown>') |
| 467 | tb_a = traceback_filename('a.py') |
| 468 | tb_b = traceback_filename('b.py') |
| 469 | tb_c = traceback_filename('c.py') |
| 470 | |
| 471 | # stats per file |
| 472 | stats1 = snapshot.statistics('filename') |
| 473 | self.assertEqual(stats1, [ |
| 474 | tracemalloc.Statistic(tb_b, 66, 1), |
| 475 | tracemalloc.Statistic(tb_a, 32, 4), |
| 476 | tracemalloc.Statistic(tb_0, 7, 1), |
| 477 | ]) |
| 478 | |
| 479 | # stats per file (2) |
| 480 | stats2 = snapshot2.statistics('filename') |
| 481 | self.assertEqual(stats2, [ |
| 482 | tracemalloc.Statistic(tb_a, 5032, 5), |
| 483 | tracemalloc.Statistic(tb_c, 400, 1), |
| 484 | ]) |
| 485 | |
| 486 | # stats diff per file |
| 487 | diff = snapshot2.compare_to(snapshot, 'filename') |
| 488 | self.assertEqual(diff, [ |
| 489 | tracemalloc.StatisticDiff(tb_a, 5032, 5000, 5, 1), |
| 490 | tracemalloc.StatisticDiff(tb_c, 400, 400, 1, 1), |
| 491 | tracemalloc.StatisticDiff(tb_b, 0, -66, 0, -1), |
| 492 | tracemalloc.StatisticDiff(tb_0, 0, -7, 0, -1), |
| 493 | ]) |
| 494 | |
| 495 | def test_snapshot_group_by_traceback(self): |
| 496 | snapshot, snapshot2 = create_snapshots() |
| 497 | |
| 498 | # stats per file |
| 499 | tb1 = traceback(('a.py', 2), ('b.py', 4)) |
| 500 | tb2 = traceback(('a.py', 5), ('b.py', 4)) |
| 501 | tb3 = traceback(('b.py', 1)) |
| 502 | tb4 = traceback(('<unknown>', 0)) |
| 503 | stats1 = snapshot.statistics('traceback') |
| 504 | self.assertEqual(stats1, [ |
| 505 | tracemalloc.Statistic(tb3, 66, 1), |
| 506 | tracemalloc.Statistic(tb1, 30, 3), |
| 507 | tracemalloc.Statistic(tb4, 7, 1), |
| 508 | tracemalloc.Statistic(tb2, 2, 1), |
| 509 | ]) |
| 510 | |
| 511 | # stats per file (2) |
| 512 | tb5 = traceback(('c.py', 578)) |
| 513 | stats2 = snapshot2.statistics('traceback') |
| 514 | self.assertEqual(stats2, [ |
| 515 | tracemalloc.Statistic(tb2, 5002, 2), |
| 516 | tracemalloc.Statistic(tb5, 400, 1), |
| 517 | tracemalloc.Statistic(tb1, 30, 3), |
| 518 | ]) |
| 519 | |
| 520 | # stats diff per file |
| 521 | diff = snapshot2.compare_to(snapshot, 'traceback') |
| 522 | self.assertEqual(diff, [ |
| 523 | tracemalloc.StatisticDiff(tb2, 5002, 5000, 2, 1), |
| 524 | tracemalloc.StatisticDiff(tb5, 400, 400, 1, 1), |
| 525 | tracemalloc.StatisticDiff(tb3, 0, -66, 0, -1), |
| 526 | tracemalloc.StatisticDiff(tb4, 0, -7, 0, -1), |
| 527 | tracemalloc.StatisticDiff(tb1, 30, 0, 3, 0), |
| 528 | ]) |
| 529 | |
| 530 | self.assertRaises(ValueError, |
| 531 | snapshot.statistics, 'traceback', cumulative=True) |
| 532 | |
| 533 | def test_snapshot_group_by_cumulative(self): |
| 534 | snapshot, snapshot2 = create_snapshots() |
| 535 | tb_0 = traceback_filename('<unknown>') |
| 536 | tb_a = traceback_filename('a.py') |
| 537 | tb_b = traceback_filename('b.py') |
| 538 | tb_a_2 = traceback_lineno('a.py', 2) |
| 539 | tb_a_5 = traceback_lineno('a.py', 5) |
| 540 | tb_b_1 = traceback_lineno('b.py', 1) |
| 541 | tb_b_4 = traceback_lineno('b.py', 4) |
| 542 | |
| 543 | # per file |
| 544 | stats = snapshot.statistics('filename', True) |
| 545 | self.assertEqual(stats, [ |
| 546 | tracemalloc.Statistic(tb_b, 98, 5), |
| 547 | tracemalloc.Statistic(tb_a, 32, 4), |
| 548 | tracemalloc.Statistic(tb_0, 7, 1), |
| 549 | ]) |
| 550 | |
| 551 | # per line |
| 552 | stats = snapshot.statistics('lineno', True) |
| 553 | self.assertEqual(stats, [ |
| 554 | tracemalloc.Statistic(tb_b_1, 66, 1), |
| 555 | tracemalloc.Statistic(tb_b_4, 32, 4), |
| 556 | tracemalloc.Statistic(tb_a_2, 30, 3), |
| 557 | tracemalloc.Statistic(tb_0, 7, 1), |
| 558 | tracemalloc.Statistic(tb_a_5, 2, 1), |
| 559 | ]) |
| 560 | |
| 561 | def test_trace_format(self): |
| 562 | snapshot, snapshot2 = create_snapshots() |
| 563 | trace = snapshot.traces[0] |
Jesse-Bakker | 706e10b | 2017-11-30 00:05:07 +0100 | [diff] [blame] | 564 | self.assertEqual(str(trace), 'b.py:4: 10 B') |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 565 | traceback = trace.traceback |
Jesse-Bakker | 706e10b | 2017-11-30 00:05:07 +0100 | [diff] [blame] | 566 | self.assertEqual(str(traceback), 'b.py:4') |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 567 | frame = traceback[0] |
Jesse-Bakker | 706e10b | 2017-11-30 00:05:07 +0100 | [diff] [blame] | 568 | self.assertEqual(str(frame), 'b.py:4') |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 569 | |
| 570 | def test_statistic_format(self): |
| 571 | snapshot, snapshot2 = create_snapshots() |
| 572 | stats = snapshot.statistics('lineno') |
| 573 | stat = stats[0] |
| 574 | self.assertEqual(str(stat), |
| 575 | 'b.py:1: size=66 B, count=1, average=66 B') |
| 576 | |
| 577 | def test_statistic_diff_format(self): |
| 578 | snapshot, snapshot2 = create_snapshots() |
| 579 | stats = snapshot2.compare_to(snapshot, 'lineno') |
| 580 | stat = stats[0] |
| 581 | self.assertEqual(str(stat), |
| 582 | 'a.py:5: size=5002 B (+5000 B), count=2 (+1), average=2501 B') |
| 583 | |
Victor Stinner | 524be30 | 2014-02-01 04:07:02 +0100 | [diff] [blame] | 584 | def test_slices(self): |
| 585 | snapshot, snapshot2 = create_snapshots() |
| 586 | self.assertEqual(snapshot.traces[:2], |
| 587 | (snapshot.traces[0], snapshot.traces[1])) |
| 588 | |
| 589 | traceback = snapshot.traces[0].traceback |
| 590 | self.assertEqual(traceback[:2], |
| 591 | (traceback[0], traceback[1])) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 592 | |
Victor Stinner | 23f628d | 2014-02-16 23:53:38 +0100 | [diff] [blame] | 593 | def test_format_traceback(self): |
| 594 | snapshot, snapshot2 = create_snapshots() |
| 595 | def getline(filename, lineno): |
| 596 | return ' <%s, %s>' % (filename, lineno) |
| 597 | with unittest.mock.patch('tracemalloc.linecache.getline', |
| 598 | side_effect=getline): |
| 599 | tb = snapshot.traces[0].traceback |
| 600 | self.assertEqual(tb.format(), |
Jesse-Bakker | 706e10b | 2017-11-30 00:05:07 +0100 | [diff] [blame] | 601 | [' File "b.py", line 4', |
| 602 | ' <b.py, 4>', |
| 603 | ' File "a.py", line 2', |
| 604 | ' <a.py, 2>']) |
Victor Stinner | 23f628d | 2014-02-16 23:53:38 +0100 | [diff] [blame] | 605 | |
| 606 | self.assertEqual(tb.format(limit=1), |
| 607 | [' File "a.py", line 2', |
| 608 | ' <a.py, 2>']) |
| 609 | |
| 610 | self.assertEqual(tb.format(limit=-1), |
Jesse-Bakker | 706e10b | 2017-11-30 00:05:07 +0100 | [diff] [blame] | 611 | [' File "b.py", line 4', |
| 612 | ' <b.py, 4>']) |
| 613 | |
| 614 | self.assertEqual(tb.format(most_recent_first=True), |
| 615 | [' File "a.py", line 2', |
| 616 | ' <a.py, 2>', |
| 617 | ' File "b.py", line 4', |
| 618 | ' <b.py, 4>']) |
| 619 | |
| 620 | self.assertEqual(tb.format(limit=1, most_recent_first=True), |
| 621 | [' File "a.py", line 2', |
| 622 | ' <a.py, 2>']) |
| 623 | |
| 624 | self.assertEqual(tb.format(limit=-1, most_recent_first=True), |
| 625 | [' File "b.py", line 4', |
| 626 | ' <b.py, 4>']) |
Victor Stinner | 23f628d | 2014-02-16 23:53:38 +0100 | [diff] [blame] | 627 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 628 | |
| 629 | class TestFilters(unittest.TestCase): |
| 630 | maxDiff = 2048 |
| 631 | |
| 632 | def test_filter_attributes(self): |
| 633 | # test default values |
| 634 | f = tracemalloc.Filter(True, "abc") |
| 635 | self.assertEqual(f.inclusive, True) |
| 636 | self.assertEqual(f.filename_pattern, "abc") |
| 637 | self.assertIsNone(f.lineno) |
| 638 | self.assertEqual(f.all_frames, False) |
| 639 | |
| 640 | # test custom values |
| 641 | f = tracemalloc.Filter(False, "test.py", 123, True) |
| 642 | self.assertEqual(f.inclusive, False) |
| 643 | self.assertEqual(f.filename_pattern, "test.py") |
| 644 | self.assertEqual(f.lineno, 123) |
| 645 | self.assertEqual(f.all_frames, True) |
| 646 | |
| 647 | # parameters passed by keyword |
| 648 | f = tracemalloc.Filter(inclusive=False, filename_pattern="test.py", lineno=123, all_frames=True) |
| 649 | self.assertEqual(f.inclusive, False) |
| 650 | self.assertEqual(f.filename_pattern, "test.py") |
| 651 | self.assertEqual(f.lineno, 123) |
| 652 | self.assertEqual(f.all_frames, True) |
| 653 | |
| 654 | # read-only attribute |
| 655 | self.assertRaises(AttributeError, setattr, f, "filename_pattern", "abc") |
| 656 | |
| 657 | def test_filter_match(self): |
| 658 | # filter without line number |
| 659 | f = tracemalloc.Filter(True, "abc") |
| 660 | self.assertTrue(f._match_frame("abc", 0)) |
| 661 | self.assertTrue(f._match_frame("abc", 5)) |
| 662 | self.assertTrue(f._match_frame("abc", 10)) |
| 663 | self.assertFalse(f._match_frame("12356", 0)) |
| 664 | self.assertFalse(f._match_frame("12356", 5)) |
| 665 | self.assertFalse(f._match_frame("12356", 10)) |
| 666 | |
| 667 | f = tracemalloc.Filter(False, "abc") |
| 668 | self.assertFalse(f._match_frame("abc", 0)) |
| 669 | self.assertFalse(f._match_frame("abc", 5)) |
| 670 | self.assertFalse(f._match_frame("abc", 10)) |
| 671 | self.assertTrue(f._match_frame("12356", 0)) |
| 672 | self.assertTrue(f._match_frame("12356", 5)) |
| 673 | self.assertTrue(f._match_frame("12356", 10)) |
| 674 | |
| 675 | # filter with line number > 0 |
| 676 | f = tracemalloc.Filter(True, "abc", 5) |
| 677 | self.assertFalse(f._match_frame("abc", 0)) |
| 678 | self.assertTrue(f._match_frame("abc", 5)) |
| 679 | self.assertFalse(f._match_frame("abc", 10)) |
| 680 | self.assertFalse(f._match_frame("12356", 0)) |
| 681 | self.assertFalse(f._match_frame("12356", 5)) |
| 682 | self.assertFalse(f._match_frame("12356", 10)) |
| 683 | |
| 684 | f = tracemalloc.Filter(False, "abc", 5) |
| 685 | self.assertTrue(f._match_frame("abc", 0)) |
| 686 | self.assertFalse(f._match_frame("abc", 5)) |
| 687 | self.assertTrue(f._match_frame("abc", 10)) |
| 688 | self.assertTrue(f._match_frame("12356", 0)) |
| 689 | self.assertTrue(f._match_frame("12356", 5)) |
| 690 | self.assertTrue(f._match_frame("12356", 10)) |
| 691 | |
| 692 | # filter with line number 0 |
| 693 | f = tracemalloc.Filter(True, "abc", 0) |
| 694 | self.assertTrue(f._match_frame("abc", 0)) |
| 695 | self.assertFalse(f._match_frame("abc", 5)) |
| 696 | self.assertFalse(f._match_frame("abc", 10)) |
| 697 | self.assertFalse(f._match_frame("12356", 0)) |
| 698 | self.assertFalse(f._match_frame("12356", 5)) |
| 699 | self.assertFalse(f._match_frame("12356", 10)) |
| 700 | |
| 701 | f = tracemalloc.Filter(False, "abc", 0) |
| 702 | self.assertFalse(f._match_frame("abc", 0)) |
| 703 | self.assertTrue(f._match_frame("abc", 5)) |
| 704 | self.assertTrue(f._match_frame("abc", 10)) |
| 705 | self.assertTrue(f._match_frame("12356", 0)) |
| 706 | self.assertTrue(f._match_frame("12356", 5)) |
| 707 | self.assertTrue(f._match_frame("12356", 10)) |
| 708 | |
| 709 | def test_filter_match_filename(self): |
| 710 | def fnmatch(inclusive, filename, pattern): |
| 711 | f = tracemalloc.Filter(inclusive, pattern) |
| 712 | return f._match_frame(filename, 0) |
| 713 | |
| 714 | self.assertTrue(fnmatch(True, "abc", "abc")) |
| 715 | self.assertFalse(fnmatch(True, "12356", "abc")) |
| 716 | self.assertFalse(fnmatch(True, "<unknown>", "abc")) |
| 717 | |
| 718 | self.assertFalse(fnmatch(False, "abc", "abc")) |
| 719 | self.assertTrue(fnmatch(False, "12356", "abc")) |
| 720 | self.assertTrue(fnmatch(False, "<unknown>", "abc")) |
| 721 | |
| 722 | def test_filter_match_filename_joker(self): |
| 723 | def fnmatch(filename, pattern): |
| 724 | filter = tracemalloc.Filter(True, pattern) |
| 725 | return filter._match_frame(filename, 0) |
| 726 | |
| 727 | # empty string |
| 728 | self.assertFalse(fnmatch('abc', '')) |
| 729 | self.assertFalse(fnmatch('', 'abc')) |
| 730 | self.assertTrue(fnmatch('', '')) |
| 731 | self.assertTrue(fnmatch('', '*')) |
| 732 | |
| 733 | # no * |
| 734 | self.assertTrue(fnmatch('abc', 'abc')) |
| 735 | self.assertFalse(fnmatch('abc', 'abcd')) |
| 736 | self.assertFalse(fnmatch('abc', 'def')) |
| 737 | |
| 738 | # a* |
| 739 | self.assertTrue(fnmatch('abc', 'a*')) |
| 740 | self.assertTrue(fnmatch('abc', 'abc*')) |
| 741 | self.assertFalse(fnmatch('abc', 'b*')) |
| 742 | self.assertFalse(fnmatch('abc', 'abcd*')) |
| 743 | |
| 744 | # a*b |
| 745 | self.assertTrue(fnmatch('abc', 'a*c')) |
| 746 | self.assertTrue(fnmatch('abcdcx', 'a*cx')) |
| 747 | self.assertFalse(fnmatch('abb', 'a*c')) |
| 748 | self.assertFalse(fnmatch('abcdce', 'a*cx')) |
| 749 | |
| 750 | # a*b*c |
| 751 | self.assertTrue(fnmatch('abcde', 'a*c*e')) |
| 752 | self.assertTrue(fnmatch('abcbdefeg', 'a*bd*eg')) |
| 753 | self.assertFalse(fnmatch('abcdd', 'a*c*e')) |
| 754 | self.assertFalse(fnmatch('abcbdefef', 'a*bd*eg')) |
| 755 | |
Brett Cannon | f299abd | 2015-04-13 14:21:02 -0400 | [diff] [blame] | 756 | # replace .pyc suffix with .py |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 757 | self.assertTrue(fnmatch('a.pyc', 'a.py')) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 758 | self.assertTrue(fnmatch('a.py', 'a.pyc')) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 759 | |
| 760 | if os.name == 'nt': |
| 761 | # case insensitive |
| 762 | self.assertTrue(fnmatch('aBC', 'ABc')) |
| 763 | self.assertTrue(fnmatch('aBcDe', 'Ab*dE')) |
| 764 | |
| 765 | self.assertTrue(fnmatch('a.pyc', 'a.PY')) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 766 | self.assertTrue(fnmatch('a.py', 'a.PYC')) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 767 | else: |
| 768 | # case sensitive |
| 769 | self.assertFalse(fnmatch('aBC', 'ABc')) |
| 770 | self.assertFalse(fnmatch('aBcDe', 'Ab*dE')) |
| 771 | |
| 772 | self.assertFalse(fnmatch('a.pyc', 'a.PY')) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 773 | self.assertFalse(fnmatch('a.py', 'a.PYC')) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 774 | |
| 775 | if os.name == 'nt': |
| 776 | # normalize alternate separator "/" to the standard separator "\" |
| 777 | self.assertTrue(fnmatch(r'a/b', r'a\b')) |
| 778 | self.assertTrue(fnmatch(r'a\b', r'a/b')) |
| 779 | self.assertTrue(fnmatch(r'a/b\c', r'a\b/c')) |
| 780 | self.assertTrue(fnmatch(r'a/b/c', r'a\b\c')) |
| 781 | else: |
| 782 | # there is no alternate separator |
| 783 | self.assertFalse(fnmatch(r'a/b', r'a\b')) |
| 784 | self.assertFalse(fnmatch(r'a\b', r'a/b')) |
| 785 | self.assertFalse(fnmatch(r'a/b\c', r'a\b/c')) |
| 786 | self.assertFalse(fnmatch(r'a/b/c', r'a\b\c')) |
| 787 | |
Zachary Ware | d9b25bb | 2015-05-13 00:27:01 -0500 | [diff] [blame] | 788 | # as of 3.5, .pyo is no longer munged to .py |
| 789 | self.assertFalse(fnmatch('a.pyo', 'a.py')) |
| 790 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 791 | def test_filter_match_trace(self): |
| 792 | t1 = (("a.py", 2), ("b.py", 3)) |
| 793 | t2 = (("b.py", 4), ("b.py", 5)) |
| 794 | t3 = (("c.py", 5), ('<unknown>', 0)) |
| 795 | unknown = (('<unknown>', 0),) |
| 796 | |
| 797 | f = tracemalloc.Filter(True, "b.py", all_frames=True) |
| 798 | self.assertTrue(f._match_traceback(t1)) |
| 799 | self.assertTrue(f._match_traceback(t2)) |
| 800 | self.assertFalse(f._match_traceback(t3)) |
| 801 | self.assertFalse(f._match_traceback(unknown)) |
| 802 | |
| 803 | f = tracemalloc.Filter(True, "b.py", all_frames=False) |
| 804 | self.assertFalse(f._match_traceback(t1)) |
| 805 | self.assertTrue(f._match_traceback(t2)) |
| 806 | self.assertFalse(f._match_traceback(t3)) |
| 807 | self.assertFalse(f._match_traceback(unknown)) |
| 808 | |
| 809 | f = tracemalloc.Filter(False, "b.py", all_frames=True) |
| 810 | self.assertFalse(f._match_traceback(t1)) |
| 811 | self.assertFalse(f._match_traceback(t2)) |
| 812 | self.assertTrue(f._match_traceback(t3)) |
| 813 | self.assertTrue(f._match_traceback(unknown)) |
| 814 | |
| 815 | f = tracemalloc.Filter(False, "b.py", all_frames=False) |
| 816 | self.assertTrue(f._match_traceback(t1)) |
| 817 | self.assertFalse(f._match_traceback(t2)) |
| 818 | self.assertTrue(f._match_traceback(t3)) |
| 819 | self.assertTrue(f._match_traceback(unknown)) |
| 820 | |
| 821 | f = tracemalloc.Filter(False, "<unknown>", all_frames=False) |
| 822 | self.assertTrue(f._match_traceback(t1)) |
| 823 | self.assertTrue(f._match_traceback(t2)) |
| 824 | self.assertTrue(f._match_traceback(t3)) |
| 825 | self.assertFalse(f._match_traceback(unknown)) |
| 826 | |
| 827 | f = tracemalloc.Filter(True, "<unknown>", all_frames=True) |
| 828 | self.assertFalse(f._match_traceback(t1)) |
| 829 | self.assertFalse(f._match_traceback(t2)) |
| 830 | self.assertTrue(f._match_traceback(t3)) |
| 831 | self.assertTrue(f._match_traceback(unknown)) |
| 832 | |
| 833 | f = tracemalloc.Filter(False, "<unknown>", all_frames=True) |
| 834 | self.assertTrue(f._match_traceback(t1)) |
| 835 | self.assertTrue(f._match_traceback(t2)) |
| 836 | self.assertFalse(f._match_traceback(t3)) |
| 837 | self.assertFalse(f._match_traceback(unknown)) |
| 838 | |
| 839 | |
| 840 | class TestCommandLine(unittest.TestCase): |
Gregory P. Smith | 34cd2ae | 2015-01-22 14:38:00 -0800 | [diff] [blame] | 841 | def test_env_var_disabled_by_default(self): |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 842 | # not tracing by default |
| 843 | code = 'import tracemalloc; print(tracemalloc.is_tracing())' |
| 844 | ok, stdout, stderr = assert_python_ok('-c', code) |
| 845 | stdout = stdout.rstrip() |
| 846 | self.assertEqual(stdout, b'False') |
| 847 | |
Berker Peksag | ce64391 | 2015-05-06 06:33:17 +0300 | [diff] [blame] | 848 | @unittest.skipIf(interpreter_requires_environment(), |
Gregory P. Smith | b9a3dd9 | 2015-02-04 00:59:40 -0800 | [diff] [blame] | 849 | 'Cannot run -E tests when PYTHON env vars are required.') |
Gregory P. Smith | 34cd2ae | 2015-01-22 14:38:00 -0800 | [diff] [blame] | 850 | def test_env_var_ignored_with_E(self): |
| 851 | """PYTHON* environment variables must be ignored when -E is present.""" |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 852 | code = 'import tracemalloc; print(tracemalloc.is_tracing())' |
| 853 | ok, stdout, stderr = assert_python_ok('-E', '-c', code, PYTHONTRACEMALLOC='1') |
| 854 | stdout = stdout.rstrip() |
| 855 | self.assertEqual(stdout, b'False') |
| 856 | |
Victor Stinner | 60b04c9 | 2018-07-25 19:23:53 +0200 | [diff] [blame] | 857 | def test_env_var_disabled(self): |
| 858 | # tracing at startup |
| 859 | code = 'import tracemalloc; print(tracemalloc.is_tracing())' |
| 860 | ok, stdout, stderr = assert_python_ok('-c', code, PYTHONTRACEMALLOC='0') |
| 861 | stdout = stdout.rstrip() |
| 862 | self.assertEqual(stdout, b'False') |
| 863 | |
Gregory P. Smith | 34cd2ae | 2015-01-22 14:38:00 -0800 | [diff] [blame] | 864 | def test_env_var_enabled_at_startup(self): |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 865 | # tracing at startup |
| 866 | code = 'import tracemalloc; print(tracemalloc.is_tracing())' |
| 867 | ok, stdout, stderr = assert_python_ok('-c', code, PYTHONTRACEMALLOC='1') |
| 868 | stdout = stdout.rstrip() |
| 869 | self.assertEqual(stdout, b'True') |
| 870 | |
Gregory P. Smith | 34cd2ae | 2015-01-22 14:38:00 -0800 | [diff] [blame] | 871 | def test_env_limit(self): |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 872 | # start and set the number of frames |
| 873 | code = 'import tracemalloc; print(tracemalloc.get_traceback_limit())' |
| 874 | ok, stdout, stderr = assert_python_ok('-c', code, PYTHONTRACEMALLOC='10') |
| 875 | stdout = stdout.rstrip() |
| 876 | self.assertEqual(stdout, b'10') |
| 877 | |
Victor Stinner | a7368ac | 2017-11-15 18:11:45 -0800 | [diff] [blame] | 878 | def check_env_var_invalid(self, nframe): |
| 879 | with support.SuppressCrashReport(): |
| 880 | ok, stdout, stderr = assert_python_failure( |
| 881 | '-c', 'pass', |
| 882 | PYTHONTRACEMALLOC=str(nframe)) |
| 883 | |
| 884 | if b'ValueError: the number of frames must be in range' in stderr: |
| 885 | return |
| 886 | if b'PYTHONTRACEMALLOC: invalid number of frames' in stderr: |
| 887 | return |
| 888 | self.fail(f"unexpeced output: {stderr!a}") |
| 889 | |
| 890 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 891 | def test_env_var_invalid(self): |
Victor Stinner | 60b04c9 | 2018-07-25 19:23:53 +0200 | [diff] [blame] | 892 | for nframe in INVALID_NFRAME: |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 893 | with self.subTest(nframe=nframe): |
Victor Stinner | a7368ac | 2017-11-15 18:11:45 -0800 | [diff] [blame] | 894 | self.check_env_var_invalid(nframe) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 895 | |
| 896 | def test_sys_xoptions(self): |
| 897 | for xoptions, nframe in ( |
| 898 | ('tracemalloc', 1), |
| 899 | ('tracemalloc=1', 1), |
| 900 | ('tracemalloc=15', 15), |
| 901 | ): |
| 902 | with self.subTest(xoptions=xoptions, nframe=nframe): |
| 903 | code = 'import tracemalloc; print(tracemalloc.get_traceback_limit())' |
| 904 | ok, stdout, stderr = assert_python_ok('-X', xoptions, '-c', code) |
| 905 | stdout = stdout.rstrip() |
| 906 | self.assertEqual(stdout, str(nframe).encode('ascii')) |
| 907 | |
Victor Stinner | a7368ac | 2017-11-15 18:11:45 -0800 | [diff] [blame] | 908 | def check_sys_xoptions_invalid(self, nframe): |
| 909 | args = ('-X', 'tracemalloc=%s' % nframe, '-c', 'pass') |
| 910 | with support.SuppressCrashReport(): |
| 911 | ok, stdout, stderr = assert_python_failure(*args) |
| 912 | |
| 913 | if b'ValueError: the number of frames must be in range' in stderr: |
| 914 | return |
| 915 | if b'-X tracemalloc=NFRAME: invalid number of frames' in stderr: |
| 916 | return |
| 917 | self.fail(f"unexpeced output: {stderr!a}") |
| 918 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 919 | def test_sys_xoptions_invalid(self): |
Victor Stinner | 60b04c9 | 2018-07-25 19:23:53 +0200 | [diff] [blame] | 920 | for nframe in INVALID_NFRAME: |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 921 | with self.subTest(nframe=nframe): |
Victor Stinner | a7368ac | 2017-11-15 18:11:45 -0800 | [diff] [blame] | 922 | self.check_sys_xoptions_invalid(nframe) |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 923 | |
Serhiy Storchaka | 24c738a | 2017-03-19 20:20:10 +0200 | [diff] [blame] | 924 | @unittest.skipIf(_testcapi is None, 'need _testcapi') |
Victor Stinner | 8dd49fe | 2014-06-02 21:36:59 +0200 | [diff] [blame] | 925 | def test_pymem_alloc0(self): |
| 926 | # Issue #21639: Check that PyMem_Malloc(0) with tracemalloc enabled |
| 927 | # does not crash. |
| 928 | code = 'import _testcapi; _testcapi.test_pymem_alloc0(); 1' |
| 929 | assert_python_ok('-X', 'tracemalloc', '-c', code) |
| 930 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 931 | |
Victor Stinner | 10b73e1 | 2016-03-22 13:39:05 +0100 | [diff] [blame] | 932 | @unittest.skipIf(_testcapi is None, 'need _testcapi') |
| 933 | class TestCAPI(unittest.TestCase): |
| 934 | maxDiff = 80 * 20 |
| 935 | |
| 936 | def setUp(self): |
| 937 | if tracemalloc.is_tracing(): |
| 938 | self.skipTest("tracemalloc must be stopped before the test") |
| 939 | |
| 940 | self.domain = 5 |
| 941 | self.size = 123 |
| 942 | self.obj = allocate_bytes(self.size)[0] |
| 943 | |
| 944 | # for the type "object", id(obj) is the address of its memory block. |
| 945 | # This type is not tracked by the garbage collector |
| 946 | self.ptr = id(self.obj) |
| 947 | |
| 948 | def tearDown(self): |
| 949 | tracemalloc.stop() |
| 950 | |
| 951 | def get_traceback(self): |
| 952 | frames = _testcapi.tracemalloc_get_traceback(self.domain, self.ptr) |
| 953 | if frames is not None: |
| 954 | return tracemalloc.Traceback(frames) |
| 955 | else: |
| 956 | return None |
| 957 | |
| 958 | def track(self, release_gil=False, nframe=1): |
Serhiy Storchaka | da8d72c | 2018-09-17 15:17:29 +0300 | [diff] [blame] | 959 | frames = get_frames(nframe, 1) |
Victor Stinner | 10b73e1 | 2016-03-22 13:39:05 +0100 | [diff] [blame] | 960 | _testcapi.tracemalloc_track(self.domain, self.ptr, self.size, |
| 961 | release_gil) |
| 962 | return frames |
| 963 | |
| 964 | def untrack(self): |
| 965 | _testcapi.tracemalloc_untrack(self.domain, self.ptr) |
| 966 | |
| 967 | def get_traced_memory(self): |
| 968 | # Get the traced size in the domain |
| 969 | snapshot = tracemalloc.take_snapshot() |
| 970 | domain_filter = tracemalloc.DomainFilter(True, self.domain) |
| 971 | snapshot = snapshot.filter_traces([domain_filter]) |
| 972 | return sum(trace.size for trace in snapshot.traces) |
| 973 | |
| 974 | def check_track(self, release_gil): |
| 975 | nframe = 5 |
| 976 | tracemalloc.start(nframe) |
| 977 | |
| 978 | size = tracemalloc.get_traced_memory()[0] |
| 979 | |
| 980 | frames = self.track(release_gil, nframe) |
| 981 | self.assertEqual(self.get_traceback(), |
| 982 | tracemalloc.Traceback(frames)) |
| 983 | |
| 984 | self.assertEqual(self.get_traced_memory(), self.size) |
| 985 | |
| 986 | def test_track(self): |
| 987 | self.check_track(False) |
| 988 | |
| 989 | def test_track_without_gil(self): |
| 990 | # check that calling _PyTraceMalloc_Track() without holding the GIL |
| 991 | # works too |
| 992 | self.check_track(True) |
| 993 | |
| 994 | def test_track_already_tracked(self): |
| 995 | nframe = 5 |
| 996 | tracemalloc.start(nframe) |
| 997 | |
| 998 | # track a first time |
| 999 | self.track() |
| 1000 | |
| 1001 | # calling _PyTraceMalloc_Track() must remove the old trace and add |
| 1002 | # a new trace with the new traceback |
| 1003 | frames = self.track(nframe=nframe) |
| 1004 | self.assertEqual(self.get_traceback(), |
| 1005 | tracemalloc.Traceback(frames)) |
| 1006 | |
| 1007 | def test_untrack(self): |
| 1008 | tracemalloc.start() |
| 1009 | |
| 1010 | self.track() |
| 1011 | self.assertIsNotNone(self.get_traceback()) |
| 1012 | self.assertEqual(self.get_traced_memory(), self.size) |
| 1013 | |
| 1014 | # untrack must remove the trace |
| 1015 | self.untrack() |
| 1016 | self.assertIsNone(self.get_traceback()) |
| 1017 | self.assertEqual(self.get_traced_memory(), 0) |
| 1018 | |
| 1019 | # calling _PyTraceMalloc_Untrack() multiple times must not crash |
| 1020 | self.untrack() |
| 1021 | self.untrack() |
| 1022 | |
| 1023 | def test_stop_track(self): |
| 1024 | tracemalloc.start() |
| 1025 | tracemalloc.stop() |
| 1026 | |
| 1027 | with self.assertRaises(RuntimeError): |
| 1028 | self.track() |
| 1029 | self.assertIsNone(self.get_traceback()) |
| 1030 | |
| 1031 | def test_stop_untrack(self): |
| 1032 | tracemalloc.start() |
| 1033 | self.track() |
| 1034 | |
| 1035 | tracemalloc.stop() |
| 1036 | with self.assertRaises(RuntimeError): |
| 1037 | self.untrack() |
| 1038 | |
| 1039 | |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 1040 | def test_main(): |
| 1041 | support.run_unittest( |
| 1042 | TestTracemallocEnabled, |
| 1043 | TestSnapshot, |
| 1044 | TestFilters, |
| 1045 | TestCommandLine, |
Victor Stinner | 10b73e1 | 2016-03-22 13:39:05 +0100 | [diff] [blame] | 1046 | TestCAPI, |
Victor Stinner | ed3b0bc | 2013-11-23 12:27:24 +0100 | [diff] [blame] | 1047 | ) |
| 1048 | |
| 1049 | if __name__ == "__main__": |
| 1050 | test_main() |