mirror of https://github.com/python/cpython
2176 lines
71 KiB
Python
2176 lines
71 KiB
Python
"""Test suite for the sys.monitoring."""
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import collections
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import dis
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import functools
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import math
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import operator
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import sys
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import textwrap
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import types
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import unittest
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import test.support
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from test.support import requires_specialization, script_helper
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from test.support.import_helper import import_module
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_testcapi = test.support.import_helper.import_module("_testcapi")
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PAIR = (0,1)
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def f1():
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pass
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def f2():
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len([])
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sys.getsizeof(0)
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def floop():
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for item in PAIR:
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pass
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def gen():
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yield
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yield
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def g1():
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for _ in gen():
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pass
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TEST_TOOL = 2
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TEST_TOOL2 = 3
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TEST_TOOL3 = 4
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def nth_line(func, offset):
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return func.__code__.co_firstlineno + offset
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class MonitoringBasicTest(unittest.TestCase):
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def test_has_objects(self):
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m = sys.monitoring
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m.events
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m.use_tool_id
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m.free_tool_id
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m.get_tool
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m.get_events
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m.set_events
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m.get_local_events
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m.set_local_events
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m.register_callback
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m.restart_events
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m.DISABLE
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m.MISSING
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m.events.NO_EVENTS
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def test_tool(self):
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sys.monitoring.use_tool_id(TEST_TOOL, "MonitoringTest.Tool")
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self.assertEqual(sys.monitoring.get_tool(TEST_TOOL), "MonitoringTest.Tool")
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sys.monitoring.set_events(TEST_TOOL, 15)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL), 15)
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sys.monitoring.set_events(TEST_TOOL, 0)
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with self.assertRaises(ValueError):
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sys.monitoring.set_events(TEST_TOOL, sys.monitoring.events.C_RETURN)
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with self.assertRaises(ValueError):
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sys.monitoring.set_events(TEST_TOOL, sys.monitoring.events.C_RAISE)
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sys.monitoring.free_tool_id(TEST_TOOL)
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self.assertEqual(sys.monitoring.get_tool(TEST_TOOL), None)
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with self.assertRaises(ValueError):
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sys.monitoring.set_events(TEST_TOOL, sys.monitoring.events.CALL)
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class MonitoringTestBase:
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def setUp(self):
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# Check that a previous test hasn't left monitoring on.
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for tool in range(6):
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self.assertEqual(sys.monitoring.get_events(tool), 0)
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self.assertIs(sys.monitoring.get_tool(TEST_TOOL), None)
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self.assertIs(sys.monitoring.get_tool(TEST_TOOL2), None)
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self.assertIs(sys.monitoring.get_tool(TEST_TOOL3), None)
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sys.monitoring.use_tool_id(TEST_TOOL, "test " + self.__class__.__name__)
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sys.monitoring.use_tool_id(TEST_TOOL2, "test2 " + self.__class__.__name__)
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sys.monitoring.use_tool_id(TEST_TOOL3, "test3 " + self.__class__.__name__)
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def tearDown(self):
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# Check that test hasn't left monitoring on.
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for tool in range(6):
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self.assertEqual(sys.monitoring.get_events(tool), 0)
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sys.monitoring.free_tool_id(TEST_TOOL)
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sys.monitoring.free_tool_id(TEST_TOOL2)
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sys.monitoring.free_tool_id(TEST_TOOL3)
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class MonitoringCountTest(MonitoringTestBase, unittest.TestCase):
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def check_event_count(self, func, event, expected):
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class Counter:
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def __init__(self):
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self.count = 0
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def __call__(self, *args):
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self.count += 1
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counter = Counter()
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sys.monitoring.register_callback(TEST_TOOL, event, counter)
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if event == E.C_RETURN or event == E.C_RAISE:
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sys.monitoring.set_events(TEST_TOOL, E.CALL)
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else:
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sys.monitoring.set_events(TEST_TOOL, event)
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self.assertEqual(counter.count, 0)
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counter.count = 0
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func()
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self.assertEqual(counter.count, expected)
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prev = sys.monitoring.register_callback(TEST_TOOL, event, None)
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counter.count = 0
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func()
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self.assertEqual(counter.count, 0)
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self.assertEqual(prev, counter)
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sys.monitoring.set_events(TEST_TOOL, 0)
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def test_start_count(self):
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self.check_event_count(f1, E.PY_START, 1)
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def test_resume_count(self):
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self.check_event_count(g1, E.PY_RESUME, 2)
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def test_return_count(self):
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self.check_event_count(f1, E.PY_RETURN, 1)
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def test_call_count(self):
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self.check_event_count(f2, E.CALL, 3)
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def test_c_return_count(self):
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self.check_event_count(f2, E.C_RETURN, 2)
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E = sys.monitoring.events
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INSTRUMENTED_EVENTS = [
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(E.PY_START, "start"),
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(E.PY_RESUME, "resume"),
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(E.PY_RETURN, "return"),
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(E.PY_YIELD, "yield"),
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(E.JUMP, "jump"),
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(E.BRANCH, "branch"),
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]
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EXCEPT_EVENTS = [
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(E.RAISE, "raise"),
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(E.PY_UNWIND, "unwind"),
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(E.EXCEPTION_HANDLED, "exception_handled"),
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]
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SIMPLE_EVENTS = INSTRUMENTED_EVENTS + EXCEPT_EVENTS + [
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(E.C_RAISE, "c_raise"),
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(E.C_RETURN, "c_return"),
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]
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SIMPLE_EVENT_SET = functools.reduce(operator.or_, [ev for (ev, _) in SIMPLE_EVENTS], 0) | E.CALL
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def just_pass():
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pass
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just_pass.events = [
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"py_call",
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"start",
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"return",
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]
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def just_raise():
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raise Exception
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just_raise.events = [
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'py_call',
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"start",
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"raise",
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"unwind",
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]
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def just_call():
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len([])
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just_call.events = [
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'py_call',
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"start",
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"c_call",
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"c_return",
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"return",
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]
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def caught():
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try:
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1/0
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except Exception:
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pass
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caught.events = [
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'py_call',
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"start",
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"raise",
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"exception_handled",
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"branch",
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"return",
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]
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def nested_call():
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just_pass()
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nested_call.events = [
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"py_call",
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"start",
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"py_call",
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"start",
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"return",
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"return",
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]
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PY_CALLABLES = (types.FunctionType, types.MethodType)
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class MonitoringEventsBase(MonitoringTestBase):
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def gather_events(self, func):
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events = []
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for event, event_name in SIMPLE_EVENTS:
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def record(*args, event_name=event_name):
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events.append(event_name)
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sys.monitoring.register_callback(TEST_TOOL, event, record)
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def record_call(code, offset, obj, arg):
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if isinstance(obj, PY_CALLABLES):
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events.append("py_call")
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else:
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events.append("c_call")
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sys.monitoring.register_callback(TEST_TOOL, E.CALL, record_call)
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sys.monitoring.set_events(TEST_TOOL, SIMPLE_EVENT_SET)
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events = []
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try:
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func()
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except:
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pass
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sys.monitoring.set_events(TEST_TOOL, 0)
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#Remove the final event, the call to `sys.monitoring.set_events`
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events = events[:-1]
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return events
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def check_events(self, func, expected=None):
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events = self.gather_events(func)
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if expected is None:
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expected = func.events
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self.assertEqual(events, expected)
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class MonitoringEventsTest(MonitoringEventsBase, unittest.TestCase):
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def test_just_pass(self):
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self.check_events(just_pass)
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def test_just_raise(self):
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try:
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self.check_events(just_raise)
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except Exception:
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pass
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL), 0)
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def test_just_call(self):
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self.check_events(just_call)
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def test_caught(self):
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self.check_events(caught)
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def test_nested_call(self):
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self.check_events(nested_call)
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UP_EVENTS = (E.C_RETURN, E.C_RAISE, E.PY_RETURN, E.PY_UNWIND, E.PY_YIELD)
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DOWN_EVENTS = (E.PY_START, E.PY_RESUME)
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from test.profilee import testfunc
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class SimulateProfileTest(MonitoringEventsBase, unittest.TestCase):
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def test_balanced(self):
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events = self.gather_events(testfunc)
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c = collections.Counter(events)
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self.assertEqual(c["c_call"], c["c_return"])
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self.assertEqual(c["start"], c["return"] + c["unwind"])
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self.assertEqual(c["raise"], c["exception_handled"] + c["unwind"])
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def test_frame_stack(self):
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self.maxDiff = None
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stack = []
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errors = []
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seen = set()
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def up(*args):
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frame = sys._getframe(1)
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if not stack:
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errors.append("empty")
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else:
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expected = stack.pop()
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if frame != expected:
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errors.append(f" Popping {frame} expected {expected}")
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def down(*args):
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frame = sys._getframe(1)
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stack.append(frame)
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seen.add(frame.f_code)
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def call(code, offset, callable, arg):
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if not isinstance(callable, PY_CALLABLES):
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stack.append(sys._getframe(1))
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for event in UP_EVENTS:
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sys.monitoring.register_callback(TEST_TOOL, event, up)
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for event in DOWN_EVENTS:
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sys.monitoring.register_callback(TEST_TOOL, event, down)
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sys.monitoring.register_callback(TEST_TOOL, E.CALL, call)
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sys.monitoring.set_events(TEST_TOOL, SIMPLE_EVENT_SET)
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testfunc()
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sys.monitoring.set_events(TEST_TOOL, 0)
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self.assertEqual(errors, [])
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self.assertEqual(stack, [sys._getframe()])
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self.assertEqual(len(seen), 9)
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class CounterWithDisable:
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def __init__(self):
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self.disable = False
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self.count = 0
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def __call__(self, *args):
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self.count += 1
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if self.disable:
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return sys.monitoring.DISABLE
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class RecorderWithDisable:
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def __init__(self, events):
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self.disable = False
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self.events = events
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def __call__(self, code, event):
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self.events.append(event)
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if self.disable:
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return sys.monitoring.DISABLE
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class MontoringDisableAndRestartTest(MonitoringTestBase, unittest.TestCase):
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def test_disable(self):
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try:
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counter = CounterWithDisable()
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, counter)
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sys.monitoring.set_events(TEST_TOOL, E.PY_START)
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self.assertEqual(counter.count, 0)
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counter.count = 0
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f1()
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self.assertEqual(counter.count, 1)
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counter.disable = True
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counter.count = 0
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f1()
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self.assertEqual(counter.count, 1)
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counter.count = 0
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f1()
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self.assertEqual(counter.count, 0)
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sys.monitoring.set_events(TEST_TOOL, 0)
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finally:
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sys.monitoring.restart_events()
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def test_restart(self):
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try:
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counter = CounterWithDisable()
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, counter)
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sys.monitoring.set_events(TEST_TOOL, E.PY_START)
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counter.disable = True
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f1()
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counter.count = 0
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f1()
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self.assertEqual(counter.count, 0)
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sys.monitoring.restart_events()
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counter.count = 0
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f1()
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self.assertEqual(counter.count, 1)
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sys.monitoring.set_events(TEST_TOOL, 0)
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finally:
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sys.monitoring.restart_events()
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class MultipleMonitorsTest(MonitoringTestBase, unittest.TestCase):
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def test_two_same(self):
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try:
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self.assertEqual(sys.monitoring._all_events(), {})
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counter1 = CounterWithDisable()
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counter2 = CounterWithDisable()
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, counter1)
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sys.monitoring.register_callback(TEST_TOOL2, E.PY_START, counter2)
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sys.monitoring.set_events(TEST_TOOL, E.PY_START)
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sys.monitoring.set_events(TEST_TOOL2, E.PY_START)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL), E.PY_START)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL2), E.PY_START)
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self.assertEqual(sys.monitoring._all_events(), {'PY_START': (1 << TEST_TOOL) | (1 << TEST_TOOL2)})
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counter1.count = 0
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counter2.count = 0
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f1()
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count1 = counter1.count
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count2 = counter2.count
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self.assertEqual((count1, count2), (1, 1))
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finally:
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sys.monitoring.set_events(TEST_TOOL, 0)
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sys.monitoring.set_events(TEST_TOOL2, 0)
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, None)
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sys.monitoring.register_callback(TEST_TOOL2, E.PY_START, None)
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self.assertEqual(sys.monitoring._all_events(), {})
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def test_three_same(self):
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try:
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self.assertEqual(sys.monitoring._all_events(), {})
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counter1 = CounterWithDisable()
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counter2 = CounterWithDisable()
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counter3 = CounterWithDisable()
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, counter1)
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sys.monitoring.register_callback(TEST_TOOL2, E.PY_START, counter2)
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sys.monitoring.register_callback(TEST_TOOL3, E.PY_START, counter3)
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sys.monitoring.set_events(TEST_TOOL, E.PY_START)
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sys.monitoring.set_events(TEST_TOOL2, E.PY_START)
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sys.monitoring.set_events(TEST_TOOL3, E.PY_START)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL), E.PY_START)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL2), E.PY_START)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL3), E.PY_START)
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self.assertEqual(sys.monitoring._all_events(), {'PY_START': (1 << TEST_TOOL) | (1 << TEST_TOOL2) | (1 << TEST_TOOL3)})
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counter1.count = 0
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counter2.count = 0
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counter3.count = 0
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f1()
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count1 = counter1.count
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count2 = counter2.count
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count3 = counter3.count
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self.assertEqual((count1, count2, count3), (1, 1, 1))
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finally:
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sys.monitoring.set_events(TEST_TOOL, 0)
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sys.monitoring.set_events(TEST_TOOL2, 0)
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sys.monitoring.set_events(TEST_TOOL3, 0)
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, None)
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sys.monitoring.register_callback(TEST_TOOL2, E.PY_START, None)
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sys.monitoring.register_callback(TEST_TOOL3, E.PY_START, None)
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self.assertEqual(sys.monitoring._all_events(), {})
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def test_two_different(self):
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try:
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self.assertEqual(sys.monitoring._all_events(), {})
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counter1 = CounterWithDisable()
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counter2 = CounterWithDisable()
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, counter1)
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sys.monitoring.register_callback(TEST_TOOL2, E.PY_RETURN, counter2)
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sys.monitoring.set_events(TEST_TOOL, E.PY_START)
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sys.monitoring.set_events(TEST_TOOL2, E.PY_RETURN)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL), E.PY_START)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL2), E.PY_RETURN)
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self.assertEqual(sys.monitoring._all_events(), {'PY_START': 1 << TEST_TOOL, 'PY_RETURN': 1 << TEST_TOOL2})
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counter1.count = 0
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counter2.count = 0
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f1()
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count1 = counter1.count
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count2 = counter2.count
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self.assertEqual((count1, count2), (1, 1))
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finally:
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sys.monitoring.set_events(TEST_TOOL, 0)
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sys.monitoring.set_events(TEST_TOOL2, 0)
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, None)
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sys.monitoring.register_callback(TEST_TOOL2, E.PY_RETURN, None)
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self.assertEqual(sys.monitoring._all_events(), {})
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def test_two_with_disable(self):
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try:
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self.assertEqual(sys.monitoring._all_events(), {})
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counter1 = CounterWithDisable()
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counter2 = CounterWithDisable()
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sys.monitoring.register_callback(TEST_TOOL, E.PY_START, counter1)
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sys.monitoring.register_callback(TEST_TOOL2, E.PY_START, counter2)
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sys.monitoring.set_events(TEST_TOOL, E.PY_START)
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sys.monitoring.set_events(TEST_TOOL2, E.PY_START)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL), E.PY_START)
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self.assertEqual(sys.monitoring.get_events(TEST_TOOL2), E.PY_START)
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self.assertEqual(sys.monitoring._all_events(), {'PY_START': (1 << TEST_TOOL) | (1 << TEST_TOOL2)})
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counter1.count = 0
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counter2.count = 0
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counter1.disable = True
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f1()
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count1 = counter1.count
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count2 = counter2.count
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self.assertEqual((count1, count2), (1, 1))
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counter1.count = 0
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counter2.count = 0
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f1()
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count1 = counter1.count
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count2 = counter2.count
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self.assertEqual((count1, count2), (0, 1))
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.set_events(TEST_TOOL2, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.PY_START, None)
|
|
sys.monitoring.register_callback(TEST_TOOL2, E.PY_START, None)
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
sys.monitoring.restart_events()
|
|
|
|
def test_with_instruction_event(self):
|
|
"""Test that the second tool can set events with instruction events set by the first tool."""
|
|
def f():
|
|
pass
|
|
code = f.__code__
|
|
|
|
try:
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
sys.monitoring.set_local_events(TEST_TOOL, code, E.INSTRUCTION | E.LINE)
|
|
sys.monitoring.set_local_events(TEST_TOOL2, code, E.LINE)
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.set_events(TEST_TOOL2, 0)
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
|
|
|
|
class LineMonitoringTest(MonitoringTestBase, unittest.TestCase):
|
|
|
|
def test_lines_single(self):
|
|
try:
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
events = []
|
|
recorder = RecorderWithDisable(events)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, recorder)
|
|
sys.monitoring.set_events(TEST_TOOL, E.LINE)
|
|
f1()
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, None)
|
|
start = nth_line(LineMonitoringTest.test_lines_single, 0)
|
|
self.assertEqual(events, [start+7, nth_line(f1, 1), start+8])
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, None)
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
sys.monitoring.restart_events()
|
|
|
|
def test_lines_loop(self):
|
|
try:
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
events = []
|
|
recorder = RecorderWithDisable(events)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, recorder)
|
|
sys.monitoring.set_events(TEST_TOOL, E.LINE)
|
|
floop()
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, None)
|
|
start = nth_line(LineMonitoringTest.test_lines_loop, 0)
|
|
floop_1 = nth_line(floop, 1)
|
|
floop_2 = nth_line(floop, 2)
|
|
self.assertEqual(
|
|
events,
|
|
[start+7, floop_1, floop_2, floop_1, floop_2, floop_1, start+8]
|
|
)
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, None)
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
sys.monitoring.restart_events()
|
|
|
|
def test_lines_two(self):
|
|
try:
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
events = []
|
|
recorder = RecorderWithDisable(events)
|
|
events2 = []
|
|
recorder2 = RecorderWithDisable(events2)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, recorder)
|
|
sys.monitoring.register_callback(TEST_TOOL2, E.LINE, recorder2)
|
|
sys.monitoring.set_events(TEST_TOOL, E.LINE); sys.monitoring.set_events(TEST_TOOL2, E.LINE)
|
|
f1()
|
|
sys.monitoring.set_events(TEST_TOOL, 0); sys.monitoring.set_events(TEST_TOOL2, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, None)
|
|
sys.monitoring.register_callback(TEST_TOOL2, E.LINE, None)
|
|
start = nth_line(LineMonitoringTest.test_lines_two, 0)
|
|
expected = [start+10, nth_line(f1, 1), start+11]
|
|
self.assertEqual(events, expected)
|
|
self.assertEqual(events2, expected)
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.set_events(TEST_TOOL2, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, None)
|
|
sys.monitoring.register_callback(TEST_TOOL2, E.LINE, None)
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
sys.monitoring.restart_events()
|
|
|
|
def check_lines(self, func, expected, tool=TEST_TOOL):
|
|
try:
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
events = []
|
|
recorder = RecorderWithDisable(events)
|
|
sys.monitoring.register_callback(tool, E.LINE, recorder)
|
|
sys.monitoring.set_events(tool, E.LINE)
|
|
func()
|
|
sys.monitoring.set_events(tool, 0)
|
|
sys.monitoring.register_callback(tool, E.LINE, None)
|
|
lines = [ line - func.__code__.co_firstlineno for line in events[1:-1] ]
|
|
self.assertEqual(lines, expected)
|
|
finally:
|
|
sys.monitoring.set_events(tool, 0)
|
|
|
|
|
|
def test_linear(self):
|
|
|
|
def func():
|
|
line = 1
|
|
line = 2
|
|
line = 3
|
|
line = 4
|
|
line = 5
|
|
|
|
self.check_lines(func, [1,2,3,4,5])
|
|
|
|
def test_branch(self):
|
|
def func():
|
|
if "true".startswith("t"):
|
|
line = 2
|
|
line = 3
|
|
else:
|
|
line = 5
|
|
line = 6
|
|
|
|
self.check_lines(func, [1,2,3,6])
|
|
|
|
def test_try_except(self):
|
|
|
|
def func1():
|
|
try:
|
|
line = 2
|
|
line = 3
|
|
except:
|
|
line = 5
|
|
line = 6
|
|
|
|
self.check_lines(func1, [1,2,3,6])
|
|
|
|
def func2():
|
|
try:
|
|
line = 2
|
|
raise 3
|
|
except:
|
|
line = 5
|
|
line = 6
|
|
|
|
self.check_lines(func2, [1,2,3,4,5,6])
|
|
|
|
def test_generator_with_line(self):
|
|
|
|
def f():
|
|
def a():
|
|
yield
|
|
def b():
|
|
yield from a()
|
|
next(b())
|
|
|
|
self.check_lines(f, [1,3,5,4,2,4])
|
|
|
|
class TestDisable(MonitoringTestBase, unittest.TestCase):
|
|
|
|
def gen(self, cond):
|
|
for i in range(10):
|
|
if cond:
|
|
yield 1
|
|
else:
|
|
yield 2
|
|
|
|
def raise_handle_reraise(self):
|
|
try:
|
|
1/0
|
|
except:
|
|
raise
|
|
|
|
def test_disable_legal_events(self):
|
|
for event, name in INSTRUMENTED_EVENTS:
|
|
try:
|
|
counter = CounterWithDisable()
|
|
counter.disable = True
|
|
sys.monitoring.register_callback(TEST_TOOL, event, counter)
|
|
sys.monitoring.set_events(TEST_TOOL, event)
|
|
for _ in self.gen(1):
|
|
pass
|
|
self.assertLess(counter.count, 4)
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, event, None)
|
|
|
|
|
|
def test_disable_illegal_events(self):
|
|
for event, name in EXCEPT_EVENTS:
|
|
try:
|
|
counter = CounterWithDisable()
|
|
counter.disable = True
|
|
sys.monitoring.register_callback(TEST_TOOL, event, counter)
|
|
sys.monitoring.set_events(TEST_TOOL, event)
|
|
with self.assertRaises(ValueError):
|
|
self.raise_handle_reraise()
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, event, None)
|
|
|
|
|
|
class ExceptionRecorder:
|
|
|
|
event_type = E.RAISE
|
|
|
|
def __init__(self, events):
|
|
self.events = events
|
|
|
|
def __call__(self, code, offset, exc):
|
|
self.events.append(("raise", type(exc)))
|
|
|
|
class CheckEvents(MonitoringTestBase, unittest.TestCase):
|
|
|
|
def get_events(self, func, tool, recorders):
|
|
try:
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
event_list = []
|
|
all_events = 0
|
|
for recorder in recorders:
|
|
ev = recorder.event_type
|
|
sys.monitoring.register_callback(tool, ev, recorder(event_list))
|
|
all_events |= ev
|
|
sys.monitoring.set_events(tool, all_events)
|
|
func()
|
|
sys.monitoring.set_events(tool, 0)
|
|
for recorder in recorders:
|
|
sys.monitoring.register_callback(tool, recorder.event_type, None)
|
|
return event_list
|
|
finally:
|
|
sys.monitoring.set_events(tool, 0)
|
|
for recorder in recorders:
|
|
sys.monitoring.register_callback(tool, recorder.event_type, None)
|
|
|
|
def check_events(self, func, expected, tool=TEST_TOOL, recorders=(ExceptionRecorder,)):
|
|
events = self.get_events(func, tool, recorders)
|
|
if events != expected:
|
|
print(events, file = sys.stderr)
|
|
self.assertEqual(events, expected)
|
|
|
|
def check_balanced(self, func, recorders):
|
|
events = self.get_events(func, TEST_TOOL, recorders)
|
|
self.assertEqual(len(events)%2, 0)
|
|
for r, h in zip(events[::2],events[1::2]):
|
|
r0 = r[0]
|
|
self.assertIn(r0, ("raise", "reraise"))
|
|
h0 = h[0]
|
|
self.assertIn(h0, ("handled", "unwind"))
|
|
self.assertEqual(r[1], h[1])
|
|
|
|
|
|
class StopiterationRecorder(ExceptionRecorder):
|
|
|
|
event_type = E.STOP_ITERATION
|
|
|
|
class ReraiseRecorder(ExceptionRecorder):
|
|
|
|
event_type = E.RERAISE
|
|
|
|
def __call__(self, code, offset, exc):
|
|
self.events.append(("reraise", type(exc)))
|
|
|
|
class UnwindRecorder(ExceptionRecorder):
|
|
|
|
event_type = E.PY_UNWIND
|
|
|
|
def __call__(self, code, offset, exc):
|
|
self.events.append(("unwind", type(exc), code.co_name))
|
|
|
|
class ExceptionHandledRecorder(ExceptionRecorder):
|
|
|
|
event_type = E.EXCEPTION_HANDLED
|
|
|
|
def __call__(self, code, offset, exc):
|
|
self.events.append(("handled", type(exc)))
|
|
|
|
class ThrowRecorder(ExceptionRecorder):
|
|
|
|
event_type = E.PY_THROW
|
|
|
|
def __call__(self, code, offset, exc):
|
|
self.events.append(("throw", type(exc)))
|
|
|
|
class CallRecorder:
|
|
|
|
event_type = E.CALL
|
|
|
|
def __init__(self, events):
|
|
self.events = events
|
|
|
|
def __call__(self, code, offset, func, arg):
|
|
self.events.append(("call", func.__name__, arg))
|
|
|
|
class ReturnRecorder:
|
|
|
|
event_type = E.PY_RETURN
|
|
|
|
def __init__(self, events):
|
|
self.events = events
|
|
|
|
def __call__(self, code, offset, val):
|
|
self.events.append(("return", code.co_name, val))
|
|
|
|
class ExceptionMonitoringTest(CheckEvents):
|
|
|
|
exception_recorders = (
|
|
ExceptionRecorder,
|
|
ReraiseRecorder,
|
|
ExceptionHandledRecorder,
|
|
UnwindRecorder
|
|
)
|
|
|
|
def test_simple_try_except(self):
|
|
|
|
def func1():
|
|
try:
|
|
line = 2
|
|
raise KeyError
|
|
except:
|
|
line = 5
|
|
line = 6
|
|
|
|
self.check_events(func1, [("raise", KeyError)])
|
|
|
|
def test_implicit_stop_iteration(self):
|
|
"""Generators are documented as raising a StopIteration
|
|
when they terminate.
|
|
However, we don't do that if we can avoid it, for speed.
|
|
sys.monitoring handles that by injecting a STOP_ITERATION
|
|
event when we would otherwise have skip the RAISE event.
|
|
This test checks that both paths record an equivalent event.
|
|
"""
|
|
|
|
def gen():
|
|
yield 1
|
|
return 2
|
|
|
|
def implicit_stop_iteration(iterator=None):
|
|
if iterator is None:
|
|
iterator = gen()
|
|
for _ in iterator:
|
|
pass
|
|
|
|
recorders=(ExceptionRecorder, StopiterationRecorder,)
|
|
expected = [("raise", StopIteration)]
|
|
|
|
# Make sure that the loop is unspecialized, and that it will not
|
|
# re-specialize immediately, so that we can we can test the
|
|
# unspecialized version of the loop first.
|
|
# Note: this assumes that we don't specialize loops over sets.
|
|
implicit_stop_iteration(set(range(100)))
|
|
|
|
# This will record a RAISE event for the StopIteration.
|
|
self.check_events(implicit_stop_iteration, expected, recorders=recorders)
|
|
|
|
# Now specialize, so that we see a STOP_ITERATION event.
|
|
for _ in range(100):
|
|
implicit_stop_iteration()
|
|
|
|
# This will record a STOP_ITERATION event for the StopIteration.
|
|
self.check_events(implicit_stop_iteration, expected, recorders=recorders)
|
|
|
|
initial = [
|
|
("raise", ZeroDivisionError),
|
|
("handled", ZeroDivisionError)
|
|
]
|
|
|
|
reraise = [
|
|
("reraise", ZeroDivisionError),
|
|
("handled", ZeroDivisionError)
|
|
]
|
|
|
|
def test_explicit_reraise(self):
|
|
|
|
def func():
|
|
try:
|
|
try:
|
|
1/0
|
|
except:
|
|
raise
|
|
except:
|
|
pass
|
|
|
|
self.check_balanced(
|
|
func,
|
|
recorders = self.exception_recorders)
|
|
|
|
def test_explicit_reraise_named(self):
|
|
|
|
def func():
|
|
try:
|
|
try:
|
|
1/0
|
|
except Exception as ex:
|
|
raise
|
|
except:
|
|
pass
|
|
|
|
self.check_balanced(
|
|
func,
|
|
recorders = self.exception_recorders)
|
|
|
|
def test_implicit_reraise(self):
|
|
|
|
def func():
|
|
try:
|
|
try:
|
|
1/0
|
|
except ValueError:
|
|
pass
|
|
except:
|
|
pass
|
|
|
|
self.check_balanced(
|
|
func,
|
|
recorders = self.exception_recorders)
|
|
|
|
|
|
def test_implicit_reraise_named(self):
|
|
|
|
def func():
|
|
try:
|
|
try:
|
|
1/0
|
|
except ValueError as ex:
|
|
pass
|
|
except:
|
|
pass
|
|
|
|
self.check_balanced(
|
|
func,
|
|
recorders = self.exception_recorders)
|
|
|
|
def test_try_finally(self):
|
|
|
|
def func():
|
|
try:
|
|
try:
|
|
1/0
|
|
finally:
|
|
pass
|
|
except:
|
|
pass
|
|
|
|
self.check_balanced(
|
|
func,
|
|
recorders = self.exception_recorders)
|
|
|
|
def test_async_for(self):
|
|
|
|
def func():
|
|
|
|
async def async_generator():
|
|
for i in range(1):
|
|
raise ZeroDivisionError
|
|
yield i
|
|
|
|
async def async_loop():
|
|
try:
|
|
async for item in async_generator():
|
|
pass
|
|
except Exception:
|
|
pass
|
|
|
|
try:
|
|
async_loop().send(None)
|
|
except StopIteration:
|
|
pass
|
|
|
|
self.check_balanced(
|
|
func,
|
|
recorders = self.exception_recorders)
|
|
|
|
def test_throw(self):
|
|
|
|
def gen():
|
|
yield 1
|
|
yield 2
|
|
|
|
def func():
|
|
try:
|
|
g = gen()
|
|
next(g)
|
|
g.throw(IndexError)
|
|
except IndexError:
|
|
pass
|
|
|
|
self.check_balanced(
|
|
func,
|
|
recorders = self.exception_recorders)
|
|
|
|
events = self.get_events(
|
|
func,
|
|
TEST_TOOL,
|
|
self.exception_recorders + (ThrowRecorder,)
|
|
)
|
|
self.assertEqual(events[0], ("throw", IndexError))
|
|
|
|
@requires_specialization
|
|
def test_no_unwind_for_shim_frame(self):
|
|
|
|
class B:
|
|
def __init__(self):
|
|
raise ValueError()
|
|
|
|
def f():
|
|
try:
|
|
return B()
|
|
except ValueError:
|
|
pass
|
|
|
|
for _ in range(100):
|
|
f()
|
|
recorders = (
|
|
ReturnRecorder,
|
|
UnwindRecorder
|
|
)
|
|
events = self.get_events(f, TEST_TOOL, recorders)
|
|
adaptive_insts = dis.get_instructions(f, adaptive=True)
|
|
self.assertIn(
|
|
"CALL_ALLOC_AND_ENTER_INIT",
|
|
[i.opname for i in adaptive_insts]
|
|
)
|
|
#There should be only one unwind event
|
|
expected = [
|
|
('unwind', ValueError, '__init__'),
|
|
('return', 'f', None),
|
|
]
|
|
|
|
self.assertEqual(events, expected)
|
|
|
|
class LineRecorder:
|
|
|
|
event_type = E.LINE
|
|
|
|
|
|
def __init__(self, events):
|
|
self.events = events
|
|
|
|
def __call__(self, code, line):
|
|
self.events.append(("line", code.co_name, line - code.co_firstlineno))
|
|
|
|
class CEventRecorder:
|
|
|
|
def __init__(self, events):
|
|
self.events = events
|
|
|
|
def __call__(self, code, offset, func, arg):
|
|
self.events.append((self.event_name, func.__name__, arg))
|
|
|
|
class CReturnRecorder(CEventRecorder):
|
|
|
|
event_type = E.C_RETURN
|
|
event_name = "C return"
|
|
|
|
class CRaiseRecorder(CEventRecorder):
|
|
|
|
event_type = E.C_RAISE
|
|
event_name = "C raise"
|
|
|
|
MANY_RECORDERS = ExceptionRecorder, CallRecorder, LineRecorder, CReturnRecorder, CRaiseRecorder
|
|
|
|
class TestManyEvents(CheckEvents):
|
|
|
|
def test_simple(self):
|
|
|
|
def func1():
|
|
line1 = 1
|
|
line2 = 2
|
|
line3 = 3
|
|
|
|
self.check_events(func1, recorders = MANY_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('call', 'func1', sys.monitoring.MISSING),
|
|
('line', 'func1', 1),
|
|
('line', 'func1', 2),
|
|
('line', 'func1', 3),
|
|
('line', 'get_events', 11),
|
|
('call', 'set_events', 2)])
|
|
|
|
def test_c_call(self):
|
|
|
|
def func2():
|
|
line1 = 1
|
|
[].append(2)
|
|
line3 = 3
|
|
|
|
self.check_events(func2, recorders = MANY_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('call', 'func2', sys.monitoring.MISSING),
|
|
('line', 'func2', 1),
|
|
('line', 'func2', 2),
|
|
('call', 'append', [2]),
|
|
('C return', 'append', [2]),
|
|
('line', 'func2', 3),
|
|
('line', 'get_events', 11),
|
|
('call', 'set_events', 2)])
|
|
|
|
def test_try_except(self):
|
|
|
|
def func3():
|
|
try:
|
|
line = 2
|
|
raise KeyError
|
|
except:
|
|
line = 5
|
|
line = 6
|
|
|
|
self.check_events(func3, recorders = MANY_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('call', 'func3', sys.monitoring.MISSING),
|
|
('line', 'func3', 1),
|
|
('line', 'func3', 2),
|
|
('line', 'func3', 3),
|
|
('raise', KeyError),
|
|
('line', 'func3', 4),
|
|
('line', 'func3', 5),
|
|
('line', 'func3', 6),
|
|
('line', 'get_events', 11),
|
|
('call', 'set_events', 2)])
|
|
|
|
class InstructionRecorder:
|
|
|
|
event_type = E.INSTRUCTION
|
|
|
|
def __init__(self, events):
|
|
self.events = events
|
|
|
|
def __call__(self, code, offset):
|
|
# Filter out instructions in check_events to lower noise
|
|
if code.co_name != "get_events":
|
|
self.events.append(("instruction", code.co_name, offset))
|
|
|
|
|
|
LINE_AND_INSTRUCTION_RECORDERS = InstructionRecorder, LineRecorder
|
|
|
|
class TestLineAndInstructionEvents(CheckEvents):
|
|
maxDiff = None
|
|
|
|
def test_simple(self):
|
|
|
|
def func1():
|
|
line1 = 1
|
|
line2 = 2
|
|
line3 = 3
|
|
|
|
self.check_events(func1, recorders = LINE_AND_INSTRUCTION_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('line', 'func1', 1),
|
|
('instruction', 'func1', 2),
|
|
('instruction', 'func1', 4),
|
|
('line', 'func1', 2),
|
|
('instruction', 'func1', 6),
|
|
('instruction', 'func1', 8),
|
|
('line', 'func1', 3),
|
|
('instruction', 'func1', 10),
|
|
('instruction', 'func1', 12),
|
|
('instruction', 'func1', 14),
|
|
('line', 'get_events', 11)])
|
|
|
|
def test_c_call(self):
|
|
|
|
def func2():
|
|
line1 = 1
|
|
[].append(2)
|
|
line3 = 3
|
|
|
|
self.check_events(func2, recorders = LINE_AND_INSTRUCTION_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('line', 'func2', 1),
|
|
('instruction', 'func2', 2),
|
|
('instruction', 'func2', 4),
|
|
('line', 'func2', 2),
|
|
('instruction', 'func2', 6),
|
|
('instruction', 'func2', 8),
|
|
('instruction', 'func2', 28),
|
|
('instruction', 'func2', 30),
|
|
('instruction', 'func2', 38),
|
|
('line', 'func2', 3),
|
|
('instruction', 'func2', 40),
|
|
('instruction', 'func2', 42),
|
|
('instruction', 'func2', 44),
|
|
('line', 'get_events', 11)])
|
|
|
|
def test_try_except(self):
|
|
|
|
def func3():
|
|
try:
|
|
line = 2
|
|
raise KeyError
|
|
except:
|
|
line = 5
|
|
line = 6
|
|
|
|
self.check_events(func3, recorders = LINE_AND_INSTRUCTION_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('line', 'func3', 1),
|
|
('instruction', 'func3', 2),
|
|
('line', 'func3', 2),
|
|
('instruction', 'func3', 4),
|
|
('instruction', 'func3', 6),
|
|
('line', 'func3', 3),
|
|
('instruction', 'func3', 8),
|
|
('instruction', 'func3', 18),
|
|
('instruction', 'func3', 20),
|
|
('line', 'func3', 4),
|
|
('instruction', 'func3', 22),
|
|
('line', 'func3', 5),
|
|
('instruction', 'func3', 24),
|
|
('instruction', 'func3', 26),
|
|
('instruction', 'func3', 28),
|
|
('line', 'func3', 6),
|
|
('instruction', 'func3', 30),
|
|
('instruction', 'func3', 32),
|
|
('instruction', 'func3', 34),
|
|
('line', 'get_events', 11)])
|
|
|
|
def test_with_restart(self):
|
|
def func1():
|
|
line1 = 1
|
|
line2 = 2
|
|
line3 = 3
|
|
|
|
self.check_events(func1, recorders = LINE_AND_INSTRUCTION_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('line', 'func1', 1),
|
|
('instruction', 'func1', 2),
|
|
('instruction', 'func1', 4),
|
|
('line', 'func1', 2),
|
|
('instruction', 'func1', 6),
|
|
('instruction', 'func1', 8),
|
|
('line', 'func1', 3),
|
|
('instruction', 'func1', 10),
|
|
('instruction', 'func1', 12),
|
|
('instruction', 'func1', 14),
|
|
('line', 'get_events', 11)])
|
|
|
|
sys.monitoring.restart_events()
|
|
|
|
self.check_events(func1, recorders = LINE_AND_INSTRUCTION_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('line', 'func1', 1),
|
|
('instruction', 'func1', 2),
|
|
('instruction', 'func1', 4),
|
|
('line', 'func1', 2),
|
|
('instruction', 'func1', 6),
|
|
('instruction', 'func1', 8),
|
|
('line', 'func1', 3),
|
|
('instruction', 'func1', 10),
|
|
('instruction', 'func1', 12),
|
|
('instruction', 'func1', 14),
|
|
('line', 'get_events', 11)])
|
|
|
|
def test_turn_off_only_instruction(self):
|
|
"""
|
|
LINE events should be recorded after INSTRUCTION event is turned off
|
|
"""
|
|
events = []
|
|
def line(*args):
|
|
events.append("line")
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, line)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.INSTRUCTION, lambda *args: None)
|
|
sys.monitoring.set_events(TEST_TOOL, E.LINE | E.INSTRUCTION)
|
|
sys.monitoring.set_events(TEST_TOOL, E.LINE)
|
|
events = []
|
|
a = 0
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
self.assertGreater(len(events), 0)
|
|
|
|
class TestInstallIncrementally(MonitoringTestBase, unittest.TestCase):
|
|
|
|
def check_events(self, func, must_include, tool=TEST_TOOL, recorders=(ExceptionRecorder,)):
|
|
try:
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
event_list = []
|
|
all_events = 0
|
|
for recorder in recorders:
|
|
all_events |= recorder.event_type
|
|
sys.monitoring.set_events(tool, all_events)
|
|
for recorder in recorders:
|
|
sys.monitoring.register_callback(tool, recorder.event_type, recorder(event_list))
|
|
func()
|
|
sys.monitoring.set_events(tool, 0)
|
|
for recorder in recorders:
|
|
sys.monitoring.register_callback(tool, recorder.event_type, None)
|
|
for line in must_include:
|
|
self.assertIn(line, event_list)
|
|
finally:
|
|
sys.monitoring.set_events(tool, 0)
|
|
for recorder in recorders:
|
|
sys.monitoring.register_callback(tool, recorder.event_type, None)
|
|
|
|
@staticmethod
|
|
def func1():
|
|
line1 = 1
|
|
|
|
MUST_INCLUDE_LI = [
|
|
('instruction', 'func1', 2),
|
|
('line', 'func1', 2),
|
|
('instruction', 'func1', 4),
|
|
('instruction', 'func1', 6)]
|
|
|
|
def test_line_then_instruction(self):
|
|
recorders = [ LineRecorder, InstructionRecorder ]
|
|
self.check_events(self.func1,
|
|
recorders = recorders, must_include = self.MUST_INCLUDE_LI)
|
|
|
|
def test_instruction_then_line(self):
|
|
recorders = [ InstructionRecorder, LineRecorder ]
|
|
self.check_events(self.func1,
|
|
recorders = recorders, must_include = self.MUST_INCLUDE_LI)
|
|
|
|
@staticmethod
|
|
def func2():
|
|
len(())
|
|
|
|
MUST_INCLUDE_CI = [
|
|
('instruction', 'func2', 2),
|
|
('call', 'func2', sys.monitoring.MISSING),
|
|
('call', 'len', ()),
|
|
('instruction', 'func2', 12),
|
|
('instruction', 'func2', 14)]
|
|
|
|
|
|
|
|
def test_call_then_instruction(self):
|
|
recorders = [ CallRecorder, InstructionRecorder ]
|
|
self.check_events(self.func2,
|
|
recorders = recorders, must_include = self.MUST_INCLUDE_CI)
|
|
|
|
def test_instruction_then_call(self):
|
|
recorders = [ InstructionRecorder, CallRecorder ]
|
|
self.check_events(self.func2,
|
|
recorders = recorders, must_include = self.MUST_INCLUDE_CI)
|
|
|
|
LOCAL_RECORDERS = CallRecorder, LineRecorder, CReturnRecorder, CRaiseRecorder
|
|
|
|
class TestLocalEvents(MonitoringTestBase, unittest.TestCase):
|
|
|
|
def check_events(self, func, expected, tool=TEST_TOOL, recorders=()):
|
|
try:
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
event_list = []
|
|
all_events = 0
|
|
for recorder in recorders:
|
|
ev = recorder.event_type
|
|
sys.monitoring.register_callback(tool, ev, recorder(event_list))
|
|
all_events |= ev
|
|
sys.monitoring.set_local_events(tool, func.__code__, all_events)
|
|
func()
|
|
sys.monitoring.set_local_events(tool, func.__code__, 0)
|
|
for recorder in recorders:
|
|
sys.monitoring.register_callback(tool, recorder.event_type, None)
|
|
self.assertEqual(event_list, expected)
|
|
finally:
|
|
sys.monitoring.set_local_events(tool, func.__code__, 0)
|
|
for recorder in recorders:
|
|
sys.monitoring.register_callback(tool, recorder.event_type, None)
|
|
|
|
|
|
def test_simple(self):
|
|
|
|
def func1():
|
|
line1 = 1
|
|
line2 = 2
|
|
line3 = 3
|
|
|
|
self.check_events(func1, recorders = LOCAL_RECORDERS, expected = [
|
|
('line', 'func1', 1),
|
|
('line', 'func1', 2),
|
|
('line', 'func1', 3)])
|
|
|
|
def test_c_call(self):
|
|
|
|
def func2():
|
|
line1 = 1
|
|
[].append(2)
|
|
line3 = 3
|
|
|
|
self.check_events(func2, recorders = LOCAL_RECORDERS, expected = [
|
|
('line', 'func2', 1),
|
|
('line', 'func2', 2),
|
|
('call', 'append', [2]),
|
|
('C return', 'append', [2]),
|
|
('line', 'func2', 3)])
|
|
|
|
def test_try_except(self):
|
|
|
|
def func3():
|
|
try:
|
|
line = 2
|
|
raise KeyError
|
|
except:
|
|
line = 5
|
|
line = 6
|
|
|
|
self.check_events(func3, recorders = LOCAL_RECORDERS, expected = [
|
|
('line', 'func3', 1),
|
|
('line', 'func3', 2),
|
|
('line', 'func3', 3),
|
|
('line', 'func3', 4),
|
|
('line', 'func3', 5),
|
|
('line', 'func3', 6)])
|
|
|
|
def test_set_non_local_event(self):
|
|
with self.assertRaises(ValueError):
|
|
sys.monitoring.set_local_events(TEST_TOOL, just_call.__code__, E.RAISE)
|
|
|
|
def line_from_offset(code, offset):
|
|
for start, end, line in code.co_lines():
|
|
if start <= offset < end:
|
|
if line is None:
|
|
return f"[offset={offset}]"
|
|
return line - code.co_firstlineno
|
|
return -1
|
|
|
|
class JumpRecorder:
|
|
|
|
event_type = E.JUMP
|
|
name = "jump"
|
|
|
|
def __init__(self, events):
|
|
self.events = events
|
|
|
|
def __call__(self, code, from_, to):
|
|
from_line = line_from_offset(code, from_)
|
|
to_line = line_from_offset(code, to)
|
|
self.events.append((self.name, code.co_name, from_line, to_line))
|
|
|
|
|
|
class BranchRecorder(JumpRecorder):
|
|
|
|
event_type = E.BRANCH
|
|
name = "branch"
|
|
|
|
|
|
|
|
class JumpOffsetRecorder:
|
|
|
|
event_type = E.JUMP
|
|
name = "jump"
|
|
|
|
def __init__(self, events, offsets=False):
|
|
self.events = events
|
|
|
|
def __call__(self, code, from_, to):
|
|
self.events.append((self.name, code.co_name, from_, to))
|
|
|
|
class BranchOffsetRecorder(JumpOffsetRecorder):
|
|
|
|
event_type = E.BRANCH
|
|
name = "branch"
|
|
|
|
|
|
JUMP_AND_BRANCH_RECORDERS = JumpRecorder, BranchRecorder
|
|
JUMP_BRANCH_AND_LINE_RECORDERS = JumpRecorder, BranchRecorder, LineRecorder
|
|
FLOW_AND_LINE_RECORDERS = JumpRecorder, BranchRecorder, LineRecorder, ExceptionRecorder, ReturnRecorder
|
|
BRANCH_OFFSET_RECORDERS = BranchOffsetRecorder,
|
|
|
|
class TestBranchAndJumpEvents(CheckEvents):
|
|
maxDiff = None
|
|
|
|
def test_loop(self):
|
|
|
|
def func():
|
|
x = 1
|
|
for a in range(2):
|
|
if a:
|
|
x = 4
|
|
else:
|
|
x = 6
|
|
7
|
|
|
|
self.check_events(func, recorders = JUMP_AND_BRANCH_RECORDERS, expected = [
|
|
('branch', 'func', 2, 2),
|
|
('branch', 'func', 3, 6),
|
|
('jump', 'func', 6, 2),
|
|
('branch', 'func', 2, 2),
|
|
('branch', 'func', 3, 4),
|
|
('jump', 'func', 4, 2),
|
|
('branch', 'func', 2, 7)])
|
|
|
|
self.check_events(func, recorders = JUMP_BRANCH_AND_LINE_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('line', 'func', 1),
|
|
('line', 'func', 2),
|
|
('branch', 'func', 2, 2),
|
|
('line', 'func', 3),
|
|
('branch', 'func', 3, 6),
|
|
('line', 'func', 6),
|
|
('jump', 'func', 6, 2),
|
|
('line', 'func', 2),
|
|
('branch', 'func', 2, 2),
|
|
('line', 'func', 3),
|
|
('branch', 'func', 3, 4),
|
|
('line', 'func', 4),
|
|
('jump', 'func', 4, 2),
|
|
('line', 'func', 2),
|
|
('branch', 'func', 2, 7),
|
|
('line', 'func', 7),
|
|
('line', 'get_events', 11)])
|
|
|
|
def test_except_star(self):
|
|
|
|
class Foo:
|
|
def meth(self):
|
|
pass
|
|
|
|
def func():
|
|
try:
|
|
try:
|
|
raise KeyError
|
|
except* Exception as e:
|
|
f = Foo(); f.meth()
|
|
except KeyError:
|
|
pass
|
|
|
|
|
|
self.check_events(func, recorders = JUMP_BRANCH_AND_LINE_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('line', 'func', 1),
|
|
('line', 'func', 2),
|
|
('line', 'func', 3),
|
|
('line', 'func', 4),
|
|
('branch', 'func', 4, 4),
|
|
('line', 'func', 5),
|
|
('line', 'meth', 1),
|
|
('jump', 'func', 5, '[offset=118]'),
|
|
('branch', 'func', '[offset=122]', '[offset=126]'),
|
|
('line', 'get_events', 11)])
|
|
|
|
self.check_events(func, recorders = FLOW_AND_LINE_RECORDERS, expected = [
|
|
('line', 'get_events', 10),
|
|
('line', 'func', 1),
|
|
('line', 'func', 2),
|
|
('line', 'func', 3),
|
|
('raise', KeyError),
|
|
('line', 'func', 4),
|
|
('branch', 'func', 4, 4),
|
|
('line', 'func', 5),
|
|
('line', 'meth', 1),
|
|
('return', 'meth', None),
|
|
('jump', 'func', 5, '[offset=118]'),
|
|
('branch', 'func', '[offset=122]', '[offset=126]'),
|
|
('return', 'func', None),
|
|
('line', 'get_events', 11)])
|
|
|
|
def test_while_offset_consistency(self):
|
|
|
|
def foo(n=0):
|
|
while n<4:
|
|
pass
|
|
n += 1
|
|
return None
|
|
|
|
in_loop = ('branch', 'foo', 10, 14)
|
|
exit_loop = ('branch', 'foo', 10, 30)
|
|
self.check_events(foo, recorders = BRANCH_OFFSET_RECORDERS, expected = [
|
|
in_loop,
|
|
in_loop,
|
|
in_loop,
|
|
in_loop,
|
|
exit_loop])
|
|
|
|
|
|
class TestLoadSuperAttr(CheckEvents):
|
|
RECORDERS = CallRecorder, LineRecorder, CRaiseRecorder, CReturnRecorder
|
|
|
|
def _exec(self, co):
|
|
d = {}
|
|
exec(co, d, d)
|
|
return d
|
|
|
|
def _exec_super(self, codestr, optimized=False):
|
|
# The compiler checks for statically visible shadowing of the name
|
|
# `super`, and declines to emit `LOAD_SUPER_ATTR` if shadowing is found.
|
|
# So inserting `super = super` prevents the compiler from emitting
|
|
# `LOAD_SUPER_ATTR`, and allows us to test that monitoring events for
|
|
# `LOAD_SUPER_ATTR` are equivalent to those we'd get from the
|
|
# un-optimized `LOAD_GLOBAL super; CALL; LOAD_ATTR` form.
|
|
assignment = "x = 1" if optimized else "super = super"
|
|
codestr = f"{assignment}\n{textwrap.dedent(codestr)}"
|
|
co = compile(codestr, "<string>", "exec")
|
|
# validate that we really do have a LOAD_SUPER_ATTR, only when optimized
|
|
self.assertEqual(self._has_load_super_attr(co), optimized)
|
|
return self._exec(co)
|
|
|
|
def _has_load_super_attr(self, co):
|
|
has = any(instr.opname == "LOAD_SUPER_ATTR" for instr in dis.get_instructions(co))
|
|
if not has:
|
|
has = any(
|
|
isinstance(c, types.CodeType) and self._has_load_super_attr(c)
|
|
for c in co.co_consts
|
|
)
|
|
return has
|
|
|
|
def _super_method_call(self, optimized=False):
|
|
codestr = """
|
|
class A:
|
|
def method(self, x):
|
|
return x
|
|
|
|
class B(A):
|
|
def method(self, x):
|
|
return super(
|
|
).method(
|
|
x
|
|
)
|
|
|
|
b = B()
|
|
def f():
|
|
return b.method(1)
|
|
"""
|
|
d = self._exec_super(codestr, optimized)
|
|
expected = [
|
|
('line', 'get_events', 10),
|
|
('call', 'f', sys.monitoring.MISSING),
|
|
('line', 'f', 1),
|
|
('call', 'method', d["b"]),
|
|
('line', 'method', 1),
|
|
('call', 'super', sys.monitoring.MISSING),
|
|
('C return', 'super', sys.monitoring.MISSING),
|
|
('line', 'method', 2),
|
|
('line', 'method', 3),
|
|
('line', 'method', 2),
|
|
('call', 'method', d["b"]),
|
|
('line', 'method', 1),
|
|
('line', 'method', 1),
|
|
('line', 'get_events', 11),
|
|
('call', 'set_events', 2),
|
|
]
|
|
return d["f"], expected
|
|
|
|
def test_method_call(self):
|
|
nonopt_func, nonopt_expected = self._super_method_call(optimized=False)
|
|
opt_func, opt_expected = self._super_method_call(optimized=True)
|
|
|
|
self.check_events(nonopt_func, recorders=self.RECORDERS, expected=nonopt_expected)
|
|
self.check_events(opt_func, recorders=self.RECORDERS, expected=opt_expected)
|
|
|
|
def _super_method_call_error(self, optimized=False):
|
|
codestr = """
|
|
class A:
|
|
def method(self, x):
|
|
return x
|
|
|
|
class B(A):
|
|
def method(self, x):
|
|
return super(
|
|
x,
|
|
self,
|
|
).method(
|
|
x
|
|
)
|
|
|
|
b = B()
|
|
def f():
|
|
try:
|
|
return b.method(1)
|
|
except TypeError:
|
|
pass
|
|
else:
|
|
assert False, "should have raised TypeError"
|
|
"""
|
|
d = self._exec_super(codestr, optimized)
|
|
expected = [
|
|
('line', 'get_events', 10),
|
|
('call', 'f', sys.monitoring.MISSING),
|
|
('line', 'f', 1),
|
|
('line', 'f', 2),
|
|
('call', 'method', d["b"]),
|
|
('line', 'method', 1),
|
|
('line', 'method', 2),
|
|
('line', 'method', 3),
|
|
('line', 'method', 1),
|
|
('call', 'super', 1),
|
|
('C raise', 'super', 1),
|
|
('line', 'f', 3),
|
|
('line', 'f', 4),
|
|
('line', 'get_events', 11),
|
|
('call', 'set_events', 2),
|
|
]
|
|
return d["f"], expected
|
|
|
|
def test_method_call_error(self):
|
|
nonopt_func, nonopt_expected = self._super_method_call_error(optimized=False)
|
|
opt_func, opt_expected = self._super_method_call_error(optimized=True)
|
|
|
|
self.check_events(nonopt_func, recorders=self.RECORDERS, expected=nonopt_expected)
|
|
self.check_events(opt_func, recorders=self.RECORDERS, expected=opt_expected)
|
|
|
|
def _super_attr(self, optimized=False):
|
|
codestr = """
|
|
class A:
|
|
x = 1
|
|
|
|
class B(A):
|
|
def method(self):
|
|
return super(
|
|
).x
|
|
|
|
b = B()
|
|
def f():
|
|
return b.method()
|
|
"""
|
|
d = self._exec_super(codestr, optimized)
|
|
expected = [
|
|
('line', 'get_events', 10),
|
|
('call', 'f', sys.monitoring.MISSING),
|
|
('line', 'f', 1),
|
|
('call', 'method', d["b"]),
|
|
('line', 'method', 1),
|
|
('call', 'super', sys.monitoring.MISSING),
|
|
('C return', 'super', sys.monitoring.MISSING),
|
|
('line', 'method', 2),
|
|
('line', 'method', 1),
|
|
('line', 'get_events', 11),
|
|
('call', 'set_events', 2)
|
|
]
|
|
return d["f"], expected
|
|
|
|
def test_attr(self):
|
|
nonopt_func, nonopt_expected = self._super_attr(optimized=False)
|
|
opt_func, opt_expected = self._super_attr(optimized=True)
|
|
|
|
self.check_events(nonopt_func, recorders=self.RECORDERS, expected=nonopt_expected)
|
|
self.check_events(opt_func, recorders=self.RECORDERS, expected=opt_expected)
|
|
|
|
def test_vs_other_type_call(self):
|
|
code_template = textwrap.dedent("""
|
|
class C:
|
|
def method(self):
|
|
return {cls}().__repr__{call}
|
|
c = C()
|
|
def f():
|
|
return c.method()
|
|
""")
|
|
|
|
def get_expected(name, call_method, ns):
|
|
repr_arg = 0 if name == "int" else sys.monitoring.MISSING
|
|
return [
|
|
('line', 'get_events', 10),
|
|
('call', 'f', sys.monitoring.MISSING),
|
|
('line', 'f', 1),
|
|
('call', 'method', ns["c"]),
|
|
('line', 'method', 1),
|
|
('call', name, sys.monitoring.MISSING),
|
|
('C return', name, sys.monitoring.MISSING),
|
|
*(
|
|
[
|
|
('call', '__repr__', repr_arg),
|
|
('C return', '__repr__', repr_arg),
|
|
] if call_method else []
|
|
),
|
|
('line', 'get_events', 11),
|
|
('call', 'set_events', 2),
|
|
]
|
|
|
|
for call_method in [True, False]:
|
|
with self.subTest(call_method=call_method):
|
|
call_str = "()" if call_method else ""
|
|
code_super = code_template.format(cls="super", call=call_str)
|
|
code_int = code_template.format(cls="int", call=call_str)
|
|
co_super = compile(code_super, '<string>', 'exec')
|
|
self.assertTrue(self._has_load_super_attr(co_super))
|
|
ns_super = self._exec(co_super)
|
|
ns_int = self._exec(code_int)
|
|
|
|
self.check_events(
|
|
ns_super["f"],
|
|
recorders=self.RECORDERS,
|
|
expected=get_expected("super", call_method, ns_super)
|
|
)
|
|
self.check_events(
|
|
ns_int["f"],
|
|
recorders=self.RECORDERS,
|
|
expected=get_expected("int", call_method, ns_int)
|
|
)
|
|
|
|
|
|
class TestSetGetEvents(MonitoringTestBase, unittest.TestCase):
|
|
|
|
def test_global(self):
|
|
sys.monitoring.set_events(TEST_TOOL, E.PY_START)
|
|
self.assertEqual(sys.monitoring.get_events(TEST_TOOL), E.PY_START)
|
|
sys.monitoring.set_events(TEST_TOOL2, E.PY_START)
|
|
self.assertEqual(sys.monitoring.get_events(TEST_TOOL2), E.PY_START)
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
self.assertEqual(sys.monitoring.get_events(TEST_TOOL), 0)
|
|
sys.monitoring.set_events(TEST_TOOL2,0)
|
|
self.assertEqual(sys.monitoring.get_events(TEST_TOOL2), 0)
|
|
|
|
def test_local(self):
|
|
code = f1.__code__
|
|
sys.monitoring.set_local_events(TEST_TOOL, code, E.PY_START)
|
|
self.assertEqual(sys.monitoring.get_local_events(TEST_TOOL, code), E.PY_START)
|
|
sys.monitoring.set_local_events(TEST_TOOL2, code, E.PY_START)
|
|
self.assertEqual(sys.monitoring.get_local_events(TEST_TOOL2, code), E.PY_START)
|
|
sys.monitoring.set_local_events(TEST_TOOL, code, 0)
|
|
self.assertEqual(sys.monitoring.get_local_events(TEST_TOOL, code), 0)
|
|
sys.monitoring.set_local_events(TEST_TOOL2, code, 0)
|
|
self.assertEqual(sys.monitoring.get_local_events(TEST_TOOL2, code), 0)
|
|
|
|
class TestUninitialized(unittest.TestCase, MonitoringTestBase):
|
|
|
|
@staticmethod
|
|
def f():
|
|
pass
|
|
|
|
def test_get_local_events_uninitialized(self):
|
|
self.assertEqual(sys.monitoring.get_local_events(TEST_TOOL, self.f.__code__), 0)
|
|
|
|
class TestRegressions(MonitoringTestBase, unittest.TestCase):
|
|
|
|
def test_105162(self):
|
|
caught = None
|
|
|
|
def inner():
|
|
nonlocal caught
|
|
try:
|
|
yield
|
|
except Exception:
|
|
caught = "inner"
|
|
yield
|
|
|
|
def outer():
|
|
nonlocal caught
|
|
try:
|
|
yield from inner()
|
|
except Exception:
|
|
caught = "outer"
|
|
yield
|
|
|
|
def run():
|
|
gen = outer()
|
|
gen.send(None)
|
|
gen.throw(Exception)
|
|
run()
|
|
self.assertEqual(caught, "inner")
|
|
caught = None
|
|
try:
|
|
sys.monitoring.set_events(TEST_TOOL, E.PY_RESUME)
|
|
run()
|
|
self.assertEqual(caught, "inner")
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
|
|
def test_108390(self):
|
|
|
|
class Foo:
|
|
def __init__(self, set_event):
|
|
if set_event:
|
|
sys.monitoring.set_events(TEST_TOOL, E.PY_RESUME)
|
|
|
|
def make_foo_optimized_then_set_event():
|
|
for i in range(100):
|
|
Foo(i == 99)
|
|
|
|
try:
|
|
make_foo_optimized_then_set_event()
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
|
|
def test_gh108976(self):
|
|
sys.monitoring.use_tool_id(0, "test")
|
|
self.addCleanup(sys.monitoring.free_tool_id, 0)
|
|
sys.monitoring.set_events(0, 0)
|
|
sys.monitoring.register_callback(0, E.LINE, lambda *args: sys.monitoring.set_events(0, 0))
|
|
sys.monitoring.register_callback(0, E.INSTRUCTION, lambda *args: 0)
|
|
sys.monitoring.set_events(0, E.LINE | E.INSTRUCTION)
|
|
sys.monitoring.set_events(0, 0)
|
|
|
|
def test_call_function_ex(self):
|
|
def f(a=1, b=2):
|
|
return a + b
|
|
args = (1, 2)
|
|
empty_args = []
|
|
|
|
call_data = []
|
|
sys.monitoring.use_tool_id(0, "test")
|
|
self.addCleanup(sys.monitoring.free_tool_id, 0)
|
|
sys.monitoring.set_events(0, 0)
|
|
sys.monitoring.register_callback(0, E.CALL, lambda code, offset, callable, arg0: call_data.append((callable, arg0)))
|
|
sys.monitoring.set_events(0, E.CALL)
|
|
f(*args)
|
|
f(*empty_args)
|
|
sys.monitoring.set_events(0, 0)
|
|
self.assertEqual(call_data[0], (f, 1))
|
|
self.assertEqual(call_data[1], (f, sys.monitoring.MISSING))
|
|
|
|
def test_instruction_explicit_callback(self):
|
|
# gh-122247
|
|
# Calling the instruction event callback explicitly should not
|
|
# crash CPython
|
|
def callback(code, instruction_offset):
|
|
pass
|
|
|
|
sys.monitoring.use_tool_id(0, "test")
|
|
self.addCleanup(sys.monitoring.free_tool_id, 0)
|
|
sys.monitoring.register_callback(0, sys.monitoring.events.INSTRUCTION, callback)
|
|
sys.monitoring.set_events(0, sys.monitoring.events.INSTRUCTION)
|
|
callback(None, 0) # call the *same* handler while it is registered
|
|
sys.monitoring.restart_events()
|
|
sys.monitoring.set_events(0, 0)
|
|
|
|
|
|
class TestOptimizer(MonitoringTestBase, unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
_testinternalcapi = import_module("_testinternalcapi")
|
|
if hasattr(_testinternalcapi, "get_optimizer"):
|
|
self.old_opt = _testinternalcapi.get_optimizer()
|
|
opt = _testinternalcapi.new_counter_optimizer()
|
|
_testinternalcapi.set_optimizer(opt)
|
|
super(TestOptimizer, self).setUp()
|
|
|
|
def tearDown(self):
|
|
super(TestOptimizer, self).tearDown()
|
|
import _testinternalcapi
|
|
if hasattr(_testinternalcapi, "get_optimizer"):
|
|
_testinternalcapi.set_optimizer(self.old_opt)
|
|
|
|
def test_for_loop(self):
|
|
def test_func(x):
|
|
i = 0
|
|
while i < x:
|
|
i += 1
|
|
|
|
code = test_func.__code__
|
|
sys.monitoring.set_local_events(TEST_TOOL, code, E.PY_START)
|
|
self.assertEqual(sys.monitoring.get_local_events(TEST_TOOL, code), E.PY_START)
|
|
test_func(1000)
|
|
sys.monitoring.set_local_events(TEST_TOOL, code, 0)
|
|
self.assertEqual(sys.monitoring.get_local_events(TEST_TOOL, code), 0)
|
|
|
|
class TestTier2Optimizer(CheckEvents):
|
|
|
|
def test_monitoring_already_opimized_loop(self):
|
|
def test_func(recorder):
|
|
set_events = sys.monitoring.set_events
|
|
line = E.LINE
|
|
i = 0
|
|
for i in range(551):
|
|
# Turn on events without branching once i reaches 500.
|
|
set_events(TEST_TOOL, line * int(i >= 500))
|
|
pass
|
|
pass
|
|
pass
|
|
|
|
self.assertEqual(sys.monitoring._all_events(), {})
|
|
events = []
|
|
recorder = LineRecorder(events)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, recorder)
|
|
try:
|
|
test_func(recorder)
|
|
finally:
|
|
sys.monitoring.register_callback(TEST_TOOL, E.LINE, None)
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
self.assertGreater(len(events), 250)
|
|
|
|
class TestMonitoringAtShutdown(unittest.TestCase):
|
|
|
|
def test_monitoring_live_at_shutdown(self):
|
|
# gh-115832: An object destructor running during the final GC of
|
|
# interpreter shutdown triggered an infinite loop in the
|
|
# instrumentation code.
|
|
script = test.support.findfile("_test_monitoring_shutdown.py")
|
|
script_helper.run_test_script(script)
|
|
|
|
|
|
class TestCApiEventGeneration(MonitoringTestBase, unittest.TestCase):
|
|
|
|
class Scope:
|
|
def __init__(self, *args):
|
|
self.args = args
|
|
|
|
def __enter__(self):
|
|
_testcapi.monitoring_enter_scope(*self.args)
|
|
|
|
def __exit__(self, *args):
|
|
_testcapi.monitoring_exit_scope()
|
|
|
|
def setUp(self):
|
|
super(TestCApiEventGeneration, self).setUp()
|
|
|
|
capi = _testcapi
|
|
|
|
self.codelike = capi.CodeLike(2)
|
|
|
|
self.cases = [
|
|
# (Event, function, *args)
|
|
( 1, E.PY_START, capi.fire_event_py_start),
|
|
( 1, E.PY_RESUME, capi.fire_event_py_resume),
|
|
( 1, E.PY_YIELD, capi.fire_event_py_yield, 10),
|
|
( 1, E.PY_RETURN, capi.fire_event_py_return, 20),
|
|
( 2, E.CALL, capi.fire_event_call, callable, 40),
|
|
( 1, E.JUMP, capi.fire_event_jump, 60),
|
|
( 1, E.BRANCH, capi.fire_event_branch, 70),
|
|
( 1, E.PY_THROW, capi.fire_event_py_throw, ValueError(1)),
|
|
( 1, E.RAISE, capi.fire_event_raise, ValueError(2)),
|
|
( 1, E.EXCEPTION_HANDLED, capi.fire_event_exception_handled, ValueError(5)),
|
|
( 1, E.PY_UNWIND, capi.fire_event_py_unwind, ValueError(6)),
|
|
( 1, E.STOP_ITERATION, capi.fire_event_stop_iteration, 7),
|
|
( 1, E.STOP_ITERATION, capi.fire_event_stop_iteration, StopIteration(8)),
|
|
]
|
|
|
|
self.EXPECT_RAISED_EXCEPTION = [E.PY_THROW, E.RAISE, E.EXCEPTION_HANDLED, E.PY_UNWIND]
|
|
|
|
|
|
def check_event_count(self, event, func, args, expected, callback_raises=None):
|
|
class Counter:
|
|
def __init__(self, callback_raises):
|
|
self.callback_raises = callback_raises
|
|
self.count = 0
|
|
|
|
def __call__(self, *args):
|
|
self.count += 1
|
|
if self.callback_raises:
|
|
exc = self.callback_raises
|
|
self.callback_raises = None
|
|
raise exc
|
|
|
|
try:
|
|
counter = Counter(callback_raises)
|
|
sys.monitoring.register_callback(TEST_TOOL, event, counter)
|
|
if event == E.C_RETURN or event == E.C_RAISE:
|
|
sys.monitoring.set_events(TEST_TOOL, E.CALL)
|
|
else:
|
|
sys.monitoring.set_events(TEST_TOOL, event)
|
|
event_value = int(math.log2(event))
|
|
with self.Scope(self.codelike, event_value):
|
|
counter.count = 0
|
|
try:
|
|
func(*args)
|
|
except ValueError as e:
|
|
self.assertIsInstance(expected, ValueError)
|
|
self.assertEqual(str(e), str(expected))
|
|
return
|
|
else:
|
|
self.assertEqual(counter.count, expected)
|
|
|
|
prev = sys.monitoring.register_callback(TEST_TOOL, event, None)
|
|
with self.Scope(self.codelike, event_value):
|
|
counter.count = 0
|
|
func(*args)
|
|
self.assertEqual(counter.count, 0)
|
|
self.assertEqual(prev, counter)
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
|
|
def test_fire_event(self):
|
|
for expected, event, function, *args in self.cases:
|
|
offset = 0
|
|
self.codelike = _testcapi.CodeLike(1)
|
|
with self.subTest(function.__name__):
|
|
args_ = (self.codelike, offset) + tuple(args)
|
|
self.check_event_count(event, function, args_, expected)
|
|
|
|
def test_missing_exception(self):
|
|
for _, event, function, *args in self.cases:
|
|
if event not in self.EXPECT_RAISED_EXCEPTION:
|
|
continue
|
|
assert args and isinstance(args[-1], BaseException)
|
|
offset = 0
|
|
self.codelike = _testcapi.CodeLike(1)
|
|
with self.subTest(function.__name__):
|
|
args_ = (self.codelike, offset) + tuple(args[:-1]) + (None,)
|
|
evt = int(math.log2(event))
|
|
expected = ValueError(f"Firing event {evt} with no exception set")
|
|
self.check_event_count(event, function, args_, expected)
|
|
|
|
def test_fire_event_failing_callback(self):
|
|
for expected, event, function, *args in self.cases:
|
|
offset = 0
|
|
self.codelike = _testcapi.CodeLike(1)
|
|
with self.subTest(function.__name__):
|
|
args_ = (self.codelike, offset) + tuple(args)
|
|
exc = OSError(42)
|
|
with self.assertRaises(type(exc)):
|
|
self.check_event_count(event, function, args_, expected,
|
|
callback_raises=exc)
|
|
|
|
|
|
CANNOT_DISABLE = { E.PY_THROW, E.RAISE, E.RERAISE,
|
|
E.EXCEPTION_HANDLED, E.PY_UNWIND }
|
|
|
|
def check_disable(self, event, func, args, expected):
|
|
try:
|
|
counter = CounterWithDisable()
|
|
sys.monitoring.register_callback(TEST_TOOL, event, counter)
|
|
if event == E.C_RETURN or event == E.C_RAISE:
|
|
sys.monitoring.set_events(TEST_TOOL, E.CALL)
|
|
else:
|
|
sys.monitoring.set_events(TEST_TOOL, event)
|
|
event_value = int(math.log2(event))
|
|
with self.Scope(self.codelike, event_value):
|
|
counter.count = 0
|
|
func(*args)
|
|
self.assertEqual(counter.count, expected)
|
|
counter.disable = True
|
|
if event in self.CANNOT_DISABLE:
|
|
# use try-except rather then assertRaises to avoid
|
|
# events from framework code
|
|
try:
|
|
counter.count = 0
|
|
func(*args)
|
|
self.assertEqual(counter.count, expected)
|
|
except ValueError:
|
|
pass
|
|
else:
|
|
self.Error("Expected a ValueError")
|
|
else:
|
|
counter.count = 0
|
|
func(*args)
|
|
self.assertEqual(counter.count, expected)
|
|
counter.count = 0
|
|
func(*args)
|
|
self.assertEqual(counter.count, expected - 1)
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|
|
|
|
def test_disable_event(self):
|
|
for expected, event, function, *args in self.cases:
|
|
offset = 0
|
|
self.codelike = _testcapi.CodeLike(2)
|
|
with self.subTest(function.__name__):
|
|
args_ = (self.codelike, 0) + tuple(args)
|
|
self.check_disable(event, function, args_, expected)
|
|
|
|
def test_enter_scope_two_events(self):
|
|
try:
|
|
yield_counter = CounterWithDisable()
|
|
unwind_counter = CounterWithDisable()
|
|
sys.monitoring.register_callback(TEST_TOOL, E.PY_YIELD, yield_counter)
|
|
sys.monitoring.register_callback(TEST_TOOL, E.PY_UNWIND, unwind_counter)
|
|
sys.monitoring.set_events(TEST_TOOL, E.PY_YIELD | E.PY_UNWIND)
|
|
|
|
yield_value = int(math.log2(E.PY_YIELD))
|
|
unwind_value = int(math.log2(E.PY_UNWIND))
|
|
cl = _testcapi.CodeLike(2)
|
|
common_args = (cl, 0)
|
|
with self.Scope(cl, yield_value, unwind_value):
|
|
yield_counter.count = 0
|
|
unwind_counter.count = 0
|
|
|
|
_testcapi.fire_event_py_unwind(*common_args, ValueError(42))
|
|
assert(yield_counter.count == 0)
|
|
assert(unwind_counter.count == 1)
|
|
|
|
_testcapi.fire_event_py_yield(*common_args, ValueError(42))
|
|
assert(yield_counter.count == 1)
|
|
assert(unwind_counter.count == 1)
|
|
|
|
yield_counter.disable = True
|
|
_testcapi.fire_event_py_yield(*common_args, ValueError(42))
|
|
assert(yield_counter.count == 2)
|
|
assert(unwind_counter.count == 1)
|
|
|
|
_testcapi.fire_event_py_yield(*common_args, ValueError(42))
|
|
assert(yield_counter.count == 2)
|
|
assert(unwind_counter.count == 1)
|
|
|
|
finally:
|
|
sys.monitoring.set_events(TEST_TOOL, 0)
|