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from __future__ import print_function |
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import inspect |
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import os |
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import platform |
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import subprocess |
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import sys |
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import threading |
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import tokenize |
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import hunter |
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import pytest |
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from fields import Fields |
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from hunter import Q |
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from hunter import And |
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from hunter import CallPrinter |
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from hunter import CodePrinter |
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from hunter import Debugger |
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from hunter import Not |
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from hunter import Or |
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from hunter import Query |
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from hunter import VarsPrinter |
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from hunter import When |
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try: |
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from cStringIO import StringIO |
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except ImportError: |
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from io import StringIO |
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try: |
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from itertools import izip_longest |
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except ImportError: |
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from itertools import zip_longest as izip_longest |
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pytest_plugins = 'pytester', |
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class FakeCallable(Fields.value): |
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def __call__(self): |
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raise NotImplementedError("Nope") |
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def __repr__(self): |
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return repr(self.value) |
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def __str__(self): |
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return str(self.value) |
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C = FakeCallable |
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50
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class EvilTracer(object): |
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def __init__(self, *args, **kwargs): |
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self._calls = [] |
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threading_support = kwargs.pop('threading_support', False) |
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self._handler = hunter._prepare_predicate(*args, **kwargs) |
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self._tracer = hunter.trace(self._append, threading_support=threading_support) |
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57
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def _append(self, event): |
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# Make sure the lineno is cached. Frames are reused |
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# and later on the events would be very broken .. |
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event.lineno |
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self._calls.append(event) |
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def __enter__(self): |
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return self |
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def __exit__(self, exc_type, exc_val, exc_tb): |
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self._tracer.stop() |
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predicate = self._handler |
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for call in self._calls: |
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predicate(call) |
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trace = EvilTracer |
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75
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def _get_func_spec(func): |
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spec = inspect.getargspec(func) |
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return inspect.formatargspec(spec.args, spec.varargs) |
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80
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81
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def test_pth_activation(): |
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module_name = os.path.__name__ |
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expected_module = "{0}.py".format(module_name) |
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84
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hunter_env = "module={!r},function=\"join\"".format(module_name) |
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func_spec = _get_func_spec(os.path.join) |
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expected_call = "call def join{0}:".format(func_spec) |
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88
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output = subprocess.check_output( |
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[sys.executable, os.path.join(os.path.dirname(__file__), 'sample.py')], |
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env=dict(os.environ, PYTHONHUNTER=hunter_env), |
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stderr=subprocess.STDOUT, |
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) |
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assert expected_module.encode() in output |
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assert expected_call.encode() in output |
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96
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97
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def test_pth_sample4(): |
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env = dict(os.environ, PYTHONHUNTER="CodePrinter") |
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env.pop('COVERAGE_PROCESS_START', None) |
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env.pop('COV_CORE_SOURCE', None) |
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output = subprocess.check_output( |
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[sys.executable, os.path.join(os.path.dirname(__file__), 'sample4.py')], |
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env=env, |
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stderr=subprocess.STDOUT, |
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) |
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assert output |
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108
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109
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def test_pth_sample2(LineMatcher): |
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env = dict(os.environ, PYTHONHUNTER="module='__main__'") |
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env.pop('COVERAGE_PROCESS_START', None) |
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env.pop('COV_CORE_SOURCE', None) |
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output = subprocess.check_output( |
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[sys.executable, os.path.join(os.path.dirname(__file__), 'sample2.py')], |
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env=env, |
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stderr=subprocess.STDOUT, |
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) |
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lm = LineMatcher(output.decode('utf-8').splitlines()) |
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lm.fnmatch_lines([ |
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'*tests*sample2.py:* call if __name__ == "__main__": #*', |
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'*tests*sample2.py:* line if __name__ == "__main__": #*', |
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'*tests*sample2.py:* line import functools', |
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123
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'*tests*sample2.py:* line def deco(opt):', |
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'*tests*sample2.py:* line @deco(1)', |
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'*tests*sample2.py:* call def deco(opt):', |
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'*tests*sample2.py:* line def decorator(func):', |
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'*tests*sample2.py:* line return decorator', |
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'*tests*sample2.py:* return return decorator', |
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'* * ... return value: <function deco*', |
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'*tests*sample2.py:* line @deco(2)', |
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'*tests*sample2.py:* call def deco(opt):', |
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'*tests*sample2.py:* line def decorator(func):', |
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'*tests*sample2.py:* line return decorator', |
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'*tests*sample2.py:* return return decorator', |
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'* * ... return value: <function deco*', |
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'*tests*sample2.py:* line @deco(3)', |
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'*tests*sample2.py:* call def deco(opt):', |
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'*tests*sample2.py:* line def decorator(func):', |
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'*tests*sample2.py:* line return decorator', |
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'*tests*sample2.py:* return return decorator', |
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'* * ... return value: <function deco*', |
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'*tests*sample2.py:* call def decorator(func):', |
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'*tests*sample2.py:* line @functools.wraps(func)', |
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'*tests*sample2.py:* line return wrapper', |
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'*tests*sample2.py:* return return wrapper', |
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'* * ... return value: <function foo *', |
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'*tests*sample2.py:* call def decorator(func):', |
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'*tests*sample2.py:* line @functools.wraps(func)', |
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'*tests*sample2.py:* line return wrapper', |
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'*tests*sample2.py:* return return wrapper', |
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'* * ... return value: <function foo *', |
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'*tests*sample2.py:* call def decorator(func):', |
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'*tests*sample2.py:* line @functools.wraps(func)', |
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'*tests*sample2.py:* line return wrapper', |
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'*tests*sample2.py:* return return wrapper', |
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'* * ... return value: <function foo *', |
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'*tests*sample2.py:* line foo(', |
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"*tests*sample2.py:* line 'a*',", |
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"*tests*sample2.py:* line 'b'", |
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'*tests*sample2.py:* call @functools.wraps(func)', |
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'* * | def wrapper(*args):', |
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'*tests*sample2.py:* line return func(*args)', |
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'*tests*sample2.py:* call @functools.wraps(func)', |
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'* * | def wrapper(*args):', |
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'*tests*sample2.py:* line return func(*args)', |
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'*tests*sample2.py:* call @functools.wraps(func)', |
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'* * | def wrapper(*args):', |
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'*tests*sample2.py:* line return func(*args)', |
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'*tests*sample2.py:* call @deco(1)', |
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'* * | @deco(2)', |
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'* * | @deco(3)', |
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'* * | def foo(*args):', |
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'*tests*sample2.py:* line return args', |
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'*tests*sample2.py:* return return args', |
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"* * ... return value: ('a*', 'b')", |
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"*tests*sample2.py:* return return func(*args)", |
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"* * ... return value: ('a*', 'b')", |
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"*tests*sample2.py:* return return func(*args)", |
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"* * ... return value: ('a*', 'b')", |
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"*tests*sample2.py:* return return func(*args)", |
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"* * ... return value: ('a*', 'b')", |
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"*tests*sample2.py:* line try:", |
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183
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"*tests*sample2.py:* line None(", |
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184
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"*tests*sample2.py:* line 'a',", |
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185
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"*tests*sample2.py:* line 'b'", |
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186
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"*tests*sample2.py:* exception 'b'", |
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187
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"* * ... exception value: *", |
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"*tests*sample2.py:* line except:", |
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"*tests*sample2.py:* line pass", |
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190
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"*tests*sample2.py:* return pass", |
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191
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"* ... return value: None", |
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192
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]) |
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193
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194
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195
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def test_predicate_str_repr(): |
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196
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assert repr(Q(module='a', function='b')).endswith("predicates.Query: query_eq=(('function', 'b'), ('module', 'a'))>") |
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197
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assert str(Q(module='a', function='b')) == "Query(function='b', module='a')" |
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198
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199
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assert repr(Q(module='a')).endswith("predicates.Query: query_eq=(('module', 'a'),)>") |
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200
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assert str(Q(module='a')) == "Query(module='a')" |
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201
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202
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assert "predicates.When: condition=<hunter." in repr(Q(module='a', action=C('foo'))) |
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203
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assert "predicates.Query: query_eq=(('module', 'a'),)>, actions=('foo',)>" in repr(Q(module='a', action=C('foo'))) |
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204
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assert str(Q(module='a', action=C('foo'))) == "When(Query(module='a'), 'foo')" |
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205
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206
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assert "predicates.Not: predicate=<hunter." in repr(~Q(module='a')) |
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207
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assert "predicates.Query: query_eq=(('module', 'a'),)>>" in repr(~Q(module='a')) |
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208
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assert str(~Q(module='a')) == "Not(Query(module='a'))" |
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209
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210
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assert "predicates.Or: predicates=(<hunter." in repr(Q(module='a') | Q(module='b')) |
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211
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assert "predicates.Query: query_eq=(('module', 'a'),)>, " in repr(Q(module='a') | Q(module='b')) |
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212
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assert repr(Q(module='a') | Q(module='b')).endswith("predicates.Query: query_eq=(('module', 'b'),)>)>") |
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213
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assert str(Q(module='a') | Q(module='b')) == "Or(Query(module='a'), Query(module='b'))" |
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214
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215
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assert "predicates.And: predicates=(<hunter." in repr(Q(module='a') & Q(module='b')) |
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216
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assert "predicates.Query: query_eq=(('module', 'a'),)>," in repr(Q(module='a') & Q(module='b')) |
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217
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assert repr(Q(module='a') & Q(module='b')).endswith("predicates.Query: query_eq=(('module', 'b'),)>)>") |
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218
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assert str(Q(module='a') & Q(module='b')) == "And(Query(module='a'), Query(module='b'))" |
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219
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220
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221
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def test_predicate_q_nest_1(): |
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222
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assert repr(Q(Q(module='a'))).endswith("predicates.Query: query_eq=(('module', 'a'),)>") |
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223
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224
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225
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def test_predicate_q_not_callable(): |
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226
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exc = pytest.raises(TypeError, Q, 'foobar') |
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227
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assert exc.value.args == ("Predicate 'foobar' is not callable.",) |
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228
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229
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230
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def test_predicate_q_expansion(): |
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231
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assert Q(C(1), C(2), module=3) == And(C(1), C(2), Q(module=3)) |
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232
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assert Q(C(1), C(2), module=3, action=C(4)) == When(And(C(1), C(2), Q(module=3)), C(4)) |
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233
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assert Q(C(1), C(2), module=3, actions=[C(4), C(5)]) == When(And(C(1), C(2), Q(module=3)), C(4), C(5)) |
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234
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235
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236
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def test_predicate_and(): |
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237
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assert And(C(1), C(2)) == And(C(1), C(2)) |
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238
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assert Q(module=1) & Q(module=2) == And(Q(module=1), Q(module=2)) |
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239
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assert Q(module=1) & Q(module=2) & Q(module=3) == And(Q(module=1), Q(module=2), Q(module=3)) |
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240
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241
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assert (Q(module=1) & Q(module=2))({'module': 3}) == False |
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242
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assert (Q(module=1) & Q(function=2))({'module': 1, 'function': 2}) == True |
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243
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244
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assert And(1, 2) | 3 == Or(And(1, 2), 3) |
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245
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246
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247
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def test_predicate_or(): |
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248
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assert Q(module=1) | Q(module=2) == Or(Q(module=1), Q(module=2)) |
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249
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assert Q(module=1) | Q(module=2) | Q(module=3) == Or(Q(module=1), Q(module=2), Q(module=3)) |
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250
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251
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assert (Q(module=1) | Q(module=2))({'module': 3}) == False |
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252
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assert (Q(module=1) | Q(module=2))({'module': 2}) == True |
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253
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254
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assert Or(1, 2) & 3 == And(Or(1, 2), 3) |
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255
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256
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257
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def test_tracing_bare(LineMatcher): |
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258
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lines = StringIO() |
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259
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with hunter.trace(CodePrinter(stream=lines)): |
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260
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def a(): |
|
261
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return 1 |
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262
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263
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b = a() |
|
264
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b = 2 |
|
265
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try: |
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266
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raise Exception("BOOM!") |
|
267
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except Exception: |
|
268
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pass |
|
269
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print(lines.getvalue()) |
|
270
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|
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lm = LineMatcher(lines.getvalue().splitlines()) |
|
271
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lm.fnmatch_lines([ |
|
272
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"*test_hunter.py* call def a():", |
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273
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"*test_hunter.py* line return 1", |
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274
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"*test_hunter.py* return return 1", |
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275
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"* ... return value: 1", |
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276
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]) |
|
277
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278
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279
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def test_mix_predicates_with_callables(): |
|
280
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hunter._prepare_predicate(Q(module=1) | Q(lambda: 2)) |
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281
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hunter._prepare_predicate(Q(lambda: 2) | Q(module=1)) |
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282
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hunter._prepare_predicate(Q(module=1) & Q(lambda: 2)) |
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283
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|
hunter._prepare_predicate(Q(lambda: 2) & Q(module=1)) |
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284
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|
|
|
|
285
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hunter._prepare_predicate(Q(module=1) | (lambda: 2)) |
|
286
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|
hunter._prepare_predicate((lambda: 2) | Q(module=1)) |
|
287
|
|
|
hunter._prepare_predicate(Q(module=1) & (lambda: 2)) |
|
288
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|
|
hunter._prepare_predicate((lambda: 2) & Q(module=1)) |
|
289
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|
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|
|
290
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291
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|
def test_threading_support(LineMatcher): |
|
292
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|
lines = StringIO() |
|
293
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|
|
idents = set() |
|
294
|
|
|
names = set() |
|
295
|
|
|
|
|
296
|
|
|
def record(event): |
|
297
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|
|
idents.add(event.threadid) |
|
298
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|
names.add(event.threadname) |
|
299
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|
return True |
|
300
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|
|
301
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|
with hunter.trace(record, |
|
302
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|
|
actions=[CodePrinter(stream=lines), VarsPrinter('a', stream=lines), CallPrinter(stream=lines)], |
|
303
|
|
|
threading_support=True): |
|
304
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|
|
def foo(a=1): |
|
305
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|
print(a) |
|
306
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|
307
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|
def main(): |
|
308
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foo() |
|
309
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|
310
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t = threading.Thread(target=foo) |
|
311
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t.start() |
|
312
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|
main() |
|
313
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314
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|
lm = LineMatcher(lines.getvalue().splitlines()) |
|
315
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|
assert idents - {t.ident} == {None} |
|
316
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|
|
assert names.issuperset({'MainThread', 'Thread-1'}) |
|
317
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|
lm.fnmatch_lines_random([ |
|
318
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|
|
'Thread-* *test_hunter.py:* call def foo(a=1):', |
|
319
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|
|
'Thread-* * vars a => 1', |
|
320
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|
'Thread-* *test_hunter.py:* call => foo(a=1)', |
|
321
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|
|
'Thread-* * vars a => 1', |
|
322
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|
|
'MainThread *test_hunter.py:* call def foo(a=1):', |
|
323
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|
|
'MainThread * vars a => 1', |
|
324
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|
|
'MainThread *test_hunter.py:* call => foo(a=1)', |
|
325
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|
|
'MainThread * vars a => 1', |
|
326
|
|
|
]) |
|
327
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|
|
328
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|
|
329
|
|
|
@pytest.mark.parametrize('query', [{'threadid': None}, {'threadname': 'MainThread'}]) |
|
330
|
|
|
def test_thread_filtering(LineMatcher, query): |
|
331
|
|
|
lines = StringIO() |
|
332
|
|
|
idents = set() |
|
333
|
|
|
names = set() |
|
334
|
|
|
|
|
335
|
|
|
def record(event): |
|
336
|
|
|
idents.add(event.threadid) |
|
337
|
|
|
names.add(event.threadname) |
|
338
|
|
|
return True |
|
339
|
|
|
|
|
340
|
|
|
with hunter.trace(~Q(**query), record, |
|
341
|
|
|
actions=[CodePrinter(stream=lines), VarsPrinter('a', stream=lines), CallPrinter(stream=lines)], |
|
342
|
|
|
threading_support=True): |
|
343
|
|
|
def foo(a=1): |
|
344
|
|
|
print(a) |
|
345
|
|
|
|
|
346
|
|
|
def main(): |
|
347
|
|
|
foo() |
|
348
|
|
|
|
|
349
|
|
|
t = threading.Thread(target=foo) |
|
350
|
|
|
t.start() |
|
351
|
|
|
main() |
|
352
|
|
|
|
|
353
|
|
|
lm = LineMatcher(lines.getvalue().splitlines()) |
|
354
|
|
|
print(lines.getvalue()) |
|
355
|
|
|
assert None not in idents |
|
356
|
|
|
assert 'MainThread' not in names |
|
357
|
|
|
lm.fnmatch_lines_random([ |
|
358
|
|
|
'Thread-* *test_hunter.py:* call def foo(a=1):', |
|
359
|
|
|
'Thread-* * vars a => 1', |
|
360
|
|
|
'Thread-* *test_hunter.py:* call => foo(a=1)', |
|
361
|
|
|
'Thread-* * vars a => 1', |
|
362
|
|
|
]) |
|
363
|
|
|
|
|
364
|
|
|
|
|
365
|
|
|
def test_tracing_printing_failures(LineMatcher): |
|
366
|
|
|
lines = StringIO() |
|
367
|
|
|
with trace(actions=[CodePrinter(stream=lines), VarsPrinter("x", stream=lines)]): |
|
368
|
|
|
class Bad(Exception): |
|
369
|
|
|
def __repr__(self): |
|
370
|
|
|
raise RuntimeError("I'm a bad class!") |
|
371
|
|
|
|
|
372
|
|
|
def a(): |
|
373
|
|
|
x = Bad() |
|
374
|
|
|
return x |
|
375
|
|
|
|
|
376
|
|
|
def b(): |
|
377
|
|
|
x = Bad() |
|
378
|
|
|
raise x |
|
379
|
|
|
|
|
380
|
|
|
a() |
|
381
|
|
|
try: |
|
382
|
|
|
b() |
|
383
|
|
|
except Exception as exc: |
|
384
|
|
|
pass |
|
385
|
|
|
lm = LineMatcher(lines.getvalue().splitlines()) |
|
386
|
|
|
lm.fnmatch_lines([ |
|
387
|
|
|
"""*tests*test_hunter.py:* call class Bad(Exception):""", |
|
388
|
|
|
"""*tests*test_hunter.py:* line class Bad(Exception):""", |
|
389
|
|
|
"""*tests*test_hunter.py:* line def __repr__(self):""", |
|
390
|
|
|
"""*tests*test_hunter.py:* return def __repr__(self):""", |
|
391
|
|
|
"""* ... return value: *""", |
|
392
|
|
|
"""*tests*test_hunter.py:* call def a():""", |
|
393
|
|
|
"""*tests*test_hunter.py:* line x = Bad()""", |
|
394
|
|
|
"""*tests*test_hunter.py:* line return x""", |
|
395
|
|
|
"""* vars x => !!! FAILED REPR: RuntimeError("I'm a bad class!",)""", |
|
396
|
|
|
"""*tests*test_hunter.py:* return return x""", |
|
397
|
|
|
"""* ... return value: !!! FAILED REPR: RuntimeError("I'm a bad class!",)""", |
|
398
|
|
|
"""* vars x => !!! FAILED REPR: RuntimeError("I'm a bad class!",)""", |
|
399
|
|
|
"""*tests*test_hunter.py:* call def b():""", |
|
400
|
|
|
"""*tests*test_hunter.py:* line x = Bad()""", |
|
401
|
|
|
"""*tests*test_hunter.py:* line raise x""", |
|
402
|
|
|
"""* vars x => !!! FAILED REPR: RuntimeError("I'm a bad class!",)""", |
|
403
|
|
|
"""*tests*test_hunter.py:* exception raise x""", |
|
404
|
|
|
"""* ... exception value: !!! FAILED REPR: RuntimeError("I'm a bad class!",)""", |
|
405
|
|
|
"""* vars x => !!! FAILED REPR: RuntimeError("I'm a bad class!",)""", |
|
406
|
|
|
"""*tests*test_hunter.py:* return raise x""", |
|
407
|
|
|
"""* ... return value: None""", |
|
408
|
|
|
"""* vars x => !!! FAILED REPR: RuntimeError("I'm a bad class!",)""", |
|
409
|
|
|
]) |
|
410
|
|
|
|
|
411
|
|
|
|
|
412
|
|
|
def test_tracing_vars(LineMatcher): |
|
413
|
|
|
lines = StringIO() |
|
414
|
|
|
with hunter.trace(actions=[VarsPrinter('b', stream=lines), CodePrinter(stream=lines)]): |
|
415
|
|
|
def a(): |
|
416
|
|
|
b = 1 |
|
417
|
|
|
b = 2 |
|
418
|
|
|
return 1 |
|
419
|
|
|
|
|
420
|
|
|
b = a() |
|
421
|
|
|
b = 2 |
|
422
|
|
|
try: |
|
423
|
|
|
raise Exception("BOOM!") |
|
424
|
|
|
except Exception: |
|
425
|
|
|
pass |
|
426
|
|
|
print(lines.getvalue()) |
|
427
|
|
|
lm = LineMatcher(lines.getvalue().splitlines()) |
|
428
|
|
|
lm.fnmatch_lines([ |
|
429
|
|
|
"*test_hunter.py* call def a():", |
|
430
|
|
|
"*test_hunter.py* line b = 1", |
|
431
|
|
|
"* vars b => 1", |
|
432
|
|
|
"*test_hunter.py* line b = 2", |
|
433
|
|
|
"* vars b => 2", |
|
434
|
|
|
"*test_hunter.py* line return 1", |
|
435
|
|
|
"* vars b => 2", |
|
436
|
|
|
"*test_hunter.py* return return 1", |
|
437
|
|
|
"* ... return value: 1", |
|
438
|
|
|
]) |
|
439
|
|
|
|
|
440
|
|
|
|
|
441
|
|
|
def test_trace_merge(): |
|
442
|
|
|
with hunter.trace(function="a"): |
|
443
|
|
|
with hunter.trace(function="b"): |
|
444
|
|
|
with hunter.trace(function="c"): |
|
445
|
|
|
assert sys.gettrace()._handler == When(Q(function="c"), CodePrinter) |
|
446
|
|
|
assert sys.gettrace()._handler == When(Q(function="b"), CodePrinter) |
|
447
|
|
|
assert sys.gettrace()._handler == When(Q(function="a"), CodePrinter) |
|
448
|
|
|
|
|
449
|
|
|
|
|
450
|
|
|
def test_trace_api_expansion(): |
|
451
|
|
|
# simple use |
|
452
|
|
|
with trace(function="foobar") as t: |
|
453
|
|
|
assert t._handler == When(Q(function="foobar"), CodePrinter) |
|
454
|
|
|
|
|
455
|
|
|
# "or" by expression |
|
456
|
|
|
with trace(module="foo", function="foobar") as t: |
|
457
|
|
|
assert t._handler == When(Q(module="foo", function="foobar"), CodePrinter) |
|
458
|
|
|
|
|
459
|
|
|
# pdb.set_trace |
|
460
|
|
|
with trace(function="foobar", action=Debugger) as t: |
|
461
|
|
|
assert str(t._handler) == str(When(Q(function="foobar"), Debugger)) |
|
462
|
|
|
|
|
463
|
|
|
# pdb.set_trace on any hits |
|
464
|
|
|
with trace(module="foo", function="foobar", action=Debugger) as t: |
|
465
|
|
|
assert str(t._handler) == str(When(Q(module="foo", function="foobar"), Debugger)) |
|
466
|
|
|
|
|
467
|
|
|
# pdb.set_trace when function is foobar, otherwise just print when module is foo |
|
468
|
|
|
with trace(Q(function="foobar", action=Debugger), module="foo") as t: |
|
469
|
|
|
assert str(t._handler) == str(When(And( |
|
470
|
|
|
When(Q(function="foobar"), Debugger), |
|
471
|
|
|
Q(module="foo") |
|
472
|
|
|
), CodePrinter)) |
|
473
|
|
|
|
|
474
|
|
|
# dumping variables from stack |
|
475
|
|
|
with trace(Q(function="foobar", action=VarsPrinter("foobar")), module="foo") as t: |
|
476
|
|
|
assert str(t._handler) == str(When(And( |
|
477
|
|
|
When(Q(function="foobar"), VarsPrinter("foobar")), |
|
478
|
|
|
Q(module="foo"), |
|
479
|
|
|
), CodePrinter)) |
|
480
|
|
|
|
|
481
|
|
|
with trace(Q(function="foobar", action=VarsPrinter("foobar", "mumbojumbo")), module="foo") as t: |
|
482
|
|
|
assert str(t._handler) == str(When(And( |
|
483
|
|
|
When(Q(function="foobar"), VarsPrinter("foobar", "mumbojumbo")), |
|
484
|
|
|
Q(module="foo"), |
|
485
|
|
|
), CodePrinter)) |
|
486
|
|
|
|
|
487
|
|
|
# multiple actions |
|
488
|
|
|
with trace(Q(function="foobar", actions=[VarsPrinter("foobar"), Debugger]), module="foo") as t: |
|
489
|
|
|
assert str(t._handler) == str(When(And( |
|
490
|
|
|
When(Q(function="foobar"), VarsPrinter("foobar"), Debugger), |
|
491
|
|
|
Q(module="foo"), |
|
492
|
|
|
), CodePrinter)) |
|
493
|
|
|
|
|
494
|
|
|
|
|
495
|
|
|
def test_locals(): |
|
496
|
|
|
out = StringIO() |
|
497
|
|
|
with hunter.trace( |
|
498
|
|
|
lambda event: event.locals.get("node") == "Foobar", |
|
499
|
|
|
module="test_hunter", |
|
500
|
|
|
function="foo", |
|
501
|
|
|
action=CodePrinter(stream=out) |
|
502
|
|
|
): |
|
503
|
|
|
def foo(): |
|
504
|
|
|
a = 1 |
|
505
|
|
|
node = "Foobar" |
|
506
|
|
|
node += "x" |
|
507
|
|
|
a += 2 |
|
508
|
|
|
return a |
|
509
|
|
|
|
|
510
|
|
|
foo() |
|
511
|
|
|
assert out.getvalue().endswith('node += "x"\n') |
|
512
|
|
|
|
|
513
|
|
|
|
|
514
|
|
|
def test_fullsource_decorator_issue(LineMatcher): |
|
515
|
|
|
out = StringIO() |
|
516
|
|
|
with trace(kind='call', action=CodePrinter(stream=out)): |
|
517
|
|
|
foo = bar = lambda x: x |
|
518
|
|
|
|
|
519
|
|
|
@foo |
|
520
|
|
|
@bar |
|
521
|
|
|
def foo(): |
|
522
|
|
|
return 1 |
|
523
|
|
|
|
|
524
|
|
|
foo() |
|
525
|
|
|
|
|
526
|
|
|
lm = LineMatcher(out.getvalue().splitlines()) |
|
527
|
|
|
lm.fnmatch_lines([ |
|
528
|
|
|
'* call @foo', |
|
529
|
|
|
'* | @bar', |
|
530
|
|
|
'* | def foo():', |
|
531
|
|
|
]) |
|
532
|
|
|
|
|
533
|
|
|
|
|
534
|
|
|
def test_callprinter(LineMatcher): |
|
535
|
|
|
out = StringIO() |
|
536
|
|
|
with trace(action=CallPrinter(stream=out)): |
|
537
|
|
|
foo = bar = lambda x: x |
|
538
|
|
|
|
|
539
|
|
|
@foo |
|
540
|
|
|
@bar |
|
541
|
|
|
def foo(): |
|
542
|
|
|
return 1 |
|
543
|
|
|
|
|
544
|
|
|
foo() |
|
545
|
|
|
|
|
546
|
|
|
lm = LineMatcher(out.getvalue().splitlines()) |
|
547
|
|
|
lm.fnmatch_lines([ |
|
548
|
|
|
'* call => <lambda>(x=<function *foo at *>)', |
|
549
|
|
|
'* line foo = bar = lambda x: x', |
|
550
|
|
|
'* return <= <lambda>: <function *foo at *>', |
|
551
|
|
|
'* call => <lambda>(x=<function *foo at *>)', |
|
552
|
|
|
'* line foo = bar = lambda x: x', |
|
553
|
|
|
'* return <= <lambda>: <function *foo at *>', |
|
554
|
|
|
'* call => foo()', |
|
555
|
|
|
'* line return 1', |
|
556
|
|
|
'* return <= foo: 1', |
|
557
|
|
|
]) |
|
558
|
|
|
|
|
559
|
|
|
|
|
560
|
|
|
def test_source(LineMatcher): |
|
561
|
|
|
calls = [] |
|
562
|
|
|
with trace(action=lambda event: calls.append(event.source)): |
|
563
|
|
|
foo = bar = lambda x: x |
|
564
|
|
|
|
|
565
|
|
|
@foo |
|
566
|
|
|
@bar |
|
567
|
|
|
def foo(): |
|
568
|
|
|
return 1 |
|
569
|
|
|
|
|
570
|
|
|
foo() |
|
571
|
|
|
|
|
572
|
|
|
lm = LineMatcher(calls) |
|
573
|
|
|
lm.fnmatch_lines([ |
|
574
|
|
|
' foo = bar = lambda x: x\n', |
|
575
|
|
|
' @foo\n', |
|
576
|
|
|
' return 1\n', |
|
577
|
|
|
]) |
|
578
|
|
|
|
|
579
|
|
|
|
|
580
|
|
|
def test_fullsource(LineMatcher): |
|
581
|
|
|
calls = [] |
|
582
|
|
|
with trace(action=lambda event: calls.append(event.fullsource)): |
|
583
|
|
|
foo = bar = lambda x: x |
|
584
|
|
|
|
|
585
|
|
|
@foo |
|
586
|
|
|
@bar |
|
587
|
|
|
def foo(): |
|
588
|
|
|
return 1 |
|
589
|
|
|
|
|
590
|
|
|
foo() |
|
591
|
|
|
|
|
592
|
|
|
lm = LineMatcher(calls) |
|
593
|
|
|
lm.fnmatch_lines([ |
|
594
|
|
|
' foo = bar = lambda x: x\n', |
|
595
|
|
|
' @foo\n @bar\n def foo():\n', |
|
596
|
|
|
' return 1\n', |
|
597
|
|
|
]) |
|
598
|
|
|
|
|
599
|
|
|
|
|
600
|
|
|
def test_debugger(LineMatcher): |
|
601
|
|
|
out = StringIO() |
|
602
|
|
|
calls = [] |
|
603
|
|
|
|
|
604
|
|
|
class FakePDB: |
|
605
|
|
|
def __init__(self, foobar=1): |
|
606
|
|
|
calls.append(foobar) |
|
607
|
|
|
|
|
608
|
|
|
def set_trace(self, frame): |
|
609
|
|
|
calls.append(frame.f_code.co_name) |
|
610
|
|
|
|
|
611
|
|
|
with hunter.trace( |
|
612
|
|
|
lambda event: event.locals.get("node") == "Foobar", |
|
613
|
|
|
module="test_hunter", |
|
614
|
|
|
function="foo", |
|
615
|
|
|
actions=[VarsPrinter("a", "node", "foo", "test_debugger", globals=True, stream=out), |
|
616
|
|
|
Debugger(klass=FakePDB, foobar=2)] |
|
617
|
|
|
): |
|
618
|
|
|
def foo(): |
|
619
|
|
|
a = 1 |
|
620
|
|
|
node = "Foobar" |
|
621
|
|
|
node += "x" |
|
622
|
|
|
a += 2 |
|
623
|
|
|
return a |
|
624
|
|
|
|
|
625
|
|
|
foo() |
|
626
|
|
|
print(out.getvalue()) |
|
627
|
|
|
assert calls == [2, 'foo'] |
|
628
|
|
|
lm = LineMatcher(out.getvalue().splitlines()) |
|
629
|
|
|
lm.fnmatch_lines_random([ |
|
630
|
|
|
"* test_debugger => <function test_debugger at *", |
|
631
|
|
|
"* node => 'Foobar'", |
|
632
|
|
|
"* a => 1", |
|
633
|
|
|
]) |
|
634
|
|
|
|
|
635
|
|
|
|
|
636
|
|
|
def test_custom_action(): |
|
637
|
|
|
calls = [] |
|
638
|
|
|
|
|
639
|
|
|
with trace(action=lambda event: calls.append(event.function), kind="return"): |
|
640
|
|
|
def foo(): |
|
641
|
|
|
return 1 |
|
642
|
|
|
|
|
643
|
|
|
foo() |
|
644
|
|
|
assert 'foo' in calls |
|
645
|
|
|
|
|
646
|
|
|
|
|
647
|
|
|
def test_trace_with_class_actions(): |
|
648
|
|
|
with trace(CodePrinter): |
|
649
|
|
|
def a(): |
|
650
|
|
|
pass |
|
651
|
|
|
|
|
652
|
|
|
a() |
|
653
|
|
|
|
|
654
|
|
|
|
|
655
|
|
|
def test_predicate_no_inf_recursion(): |
|
656
|
|
|
assert Or(And(1)) == 1 |
|
657
|
|
|
assert Or(Or(1)) == 1 |
|
658
|
|
|
assert And(Or(1)) == 1 |
|
659
|
|
|
assert And(And(1)) == 1 |
|
660
|
|
|
predicate = Q(Q(lambda ev: 1, module='wat')) |
|
661
|
|
|
print('predicate:', predicate) |
|
662
|
|
|
predicate({'module': 'foo'}) |
|
663
|
|
|
|
|
664
|
|
|
|
|
665
|
|
|
def test_predicate_compression(): |
|
666
|
|
|
assert Or(Or(1, 2), And(3)) == Or(1, 2, 3) |
|
667
|
|
|
assert Or(Or(1, 2), 3) == Or(1, 2, 3) |
|
668
|
|
|
assert Or(1, Or(2, 3), 4) == Or(1, 2, 3, 4) |
|
669
|
|
|
assert And(1, 2, Or(3, 4)).predicates == (1, 2, Or(3, 4)) |
|
670
|
|
|
|
|
671
|
|
|
assert repr(Or(Or(1, 2), And(3))) == repr(Or(1, 2, 3)) |
|
672
|
|
|
assert repr(Or(Or(1, 2), 3)) == repr(Or(1, 2, 3)) |
|
673
|
|
|
assert repr(Or(1, Or(2, 3), 4)) == repr(Or(1, 2, 3, 4)) |
|
674
|
|
|
|
|
675
|
|
|
|
|
676
|
|
|
def test_predicate_not(): |
|
677
|
|
|
assert Not(1).predicate == 1 |
|
678
|
|
|
assert ~Or(1, 2) == Not(Or(1, 2)) |
|
679
|
|
|
assert ~And(1, 2) == Not(And(1, 2)) |
|
680
|
|
|
|
|
681
|
|
|
assert ~Not(1) == 1 |
|
682
|
|
|
|
|
683
|
|
|
assert ~Query(module=1) | ~Query(module=2) == Not(And(Query(module=1), Query(module=2))) |
|
684
|
|
|
assert ~Query(module=1) & ~Query(module=2) == Not(Or(Query(module=1), Query(module=2))) |
|
685
|
|
|
|
|
686
|
|
|
assert ~Query(module=1) | Query(module=2) == Or(Not(Query(module=1)), Query(module=2)) |
|
687
|
|
|
assert ~Query(module=1) & Query(module=2) == And(Not(Query(module=1)), Query(module=2)) |
|
688
|
|
|
|
|
689
|
|
|
assert ~(Query(module=1) & Query(module=2)) == Not(And(Query(module=1), Query(module=2))) |
|
690
|
|
|
assert ~(Query(module=1) | Query(module=2)) == Not(Or(Query(module=1), Query(module=2))) |
|
691
|
|
|
|
|
692
|
|
|
assert repr(~Or(1, 2)) == repr(Not(Or(1, 2))) |
|
693
|
|
|
assert repr(~And(1, 2)) == repr(Not(And(1, 2))) |
|
694
|
|
|
|
|
695
|
|
|
assert repr(~Query(module=1) | ~Query(module=2)) == repr(Not(And(Query(module=1), Query(module=2)))) |
|
696
|
|
|
assert repr(~Query(module=1) & ~Query(module=2)) == repr(Not(Or(Query(module=1), Query(module=2)))) |
|
697
|
|
|
|
|
698
|
|
|
assert repr(~(Query(module=1) & Query(module=2))) == repr(Not(And(Query(module=1), Query(module=2)))) |
|
699
|
|
|
assert repr(~(Query(module=1) | Query(module=2))) == repr(Not(Or(Query(module=1), Query(module=2)))) |
|
700
|
|
|
|
|
701
|
|
|
assert Not(Q(module=1))({'module': 1}) == False |
|
702
|
|
|
|
|
703
|
|
|
|
|
704
|
|
|
def test_predicate_query_allowed(): |
|
705
|
|
|
pytest.raises(TypeError, Query, 1) |
|
706
|
|
|
pytest.raises(TypeError, Query, a=1) |
|
707
|
|
|
|
|
708
|
|
|
|
|
709
|
|
|
def test_predicate_when_allowed(): |
|
710
|
|
|
pytest.raises(TypeError, When, 1) |
|
711
|
|
|
|
|
712
|
|
|
|
|
713
|
|
|
@pytest.mark.parametrize('expr,inp,expected', [ |
|
714
|
|
|
({'module': "abc"}, {'module': "abc"}, True), |
|
715
|
|
|
({'module': "abcd"}, {'module': "abc"}, False), |
|
716
|
|
|
({'module': "abcd"}, {'module': "abce"}, False), |
|
717
|
|
|
({'module_startswith': "abc"}, {'module': "abcd"}, True), |
|
718
|
|
|
({'module__startswith': "abc"}, {'module': "abcd"}, True), |
|
719
|
|
|
({'module_contains': "bc"}, {'module': "abcd"}, True), |
|
720
|
|
|
({'module_contains': "bcde"}, {'module': "abcd"}, False), |
|
721
|
|
|
|
|
722
|
|
|
({'module_endswith': "abc"}, {'module': "abcd"}, False), |
|
723
|
|
|
({'module__endswith': "bcd"}, {'module': "abcd"}, True), |
|
724
|
|
|
|
|
725
|
|
|
({'module_in': "abcd"}, {'module': "bc"}, True), |
|
726
|
|
|
({'module': "abcd"}, {'module': "bc"}, False), |
|
727
|
|
|
({'module': ["abcd"]}, {'module': "bc"}, False), |
|
728
|
|
|
({'module_in': ["abcd"]}, {'module': "bc"}, False), |
|
729
|
|
|
({'module_in': ["a", "bc", "d"]}, {'module': "bc"}, True), |
|
730
|
|
|
|
|
731
|
|
|
({'module': "abcd"}, {'module': "abc"}, False), |
|
732
|
|
|
|
|
733
|
|
|
({'module_startswith': ("abc", "xyz")}, {'module': "abc"}, True), |
|
734
|
|
|
({'module_startswith': {"abc", "xyz"}}, {'module': "abc"}, True), |
|
735
|
|
|
({'module_startswith': ["abc", "xyz"]}, {'module': "abc"}, True), |
|
736
|
|
|
({'module_startswith': ("abc", "xyz")}, {'module': "abcd"}, True), |
|
737
|
|
|
({'module_startswith': ("abc", "xyz")}, {'module': "xyzw"}, True), |
|
738
|
|
|
({'module_startswith': ("abc", "xyz")}, {'module': "fooabc"}, False), |
|
739
|
|
|
|
|
740
|
|
|
({'module_endswith': ("abc", "xyz")}, {'module': "abc"}, True), |
|
741
|
|
|
({'module_endswith': {"abc", "xyz"}}, {'module': "abc"}, True), |
|
742
|
|
|
({'module_endswith': ["abc", "xyz"]}, {'module': "abc"}, True), |
|
743
|
|
|
({'module_endswith': ("abc", "xyz")}, {'module': "1abc"}, True), |
|
744
|
|
|
({'module_endswith': ("abc", "xyz")}, {'module': "1xyz"}, True), |
|
745
|
|
|
({'module_endswith': ("abc", "xyz")}, {'module': "abcfoo"}, False), |
|
746
|
|
|
|
|
747
|
|
|
({'module': "abc"}, {'module': 1}, False), |
|
748
|
|
|
|
|
749
|
|
|
({'module_regex': r"(re|sre.*)\b"}, {'module': "regex"}, False), |
|
750
|
|
|
({'module_regex': r"(re|sre.*)\b"}, {'module': "re.gex"}, True), |
|
751
|
|
|
({'module_regex': r"(re|sre.*)\b"}, {'module': "sregex"}, True), |
|
752
|
|
|
({'module_regex': r"(re|sre.*)\b"}, {'module': "re"}, True), |
|
753
|
|
|
]) |
|
754
|
|
|
def test_predicate_matching(expr, inp, expected): |
|
755
|
|
|
assert Query(**expr)(inp) == expected |
|
756
|
|
|
|
|
757
|
|
|
|
|
758
|
|
|
@pytest.mark.parametrize('exc_type,expr', [ |
|
759
|
|
|
(TypeError, {'module_1': 1}), |
|
760
|
|
|
(TypeError, {'module1': 1}), |
|
761
|
|
|
(ValueError, {'module_startswith': 1}), |
|
762
|
|
|
(ValueError, {'module_startswith': {1: 2}}), |
|
763
|
|
|
(ValueError, {'module_endswith': 1}), |
|
764
|
|
|
(ValueError, {'module_endswith': {1: 2}}), |
|
765
|
|
|
(TypeError, {'module_foo': 1}), |
|
766
|
|
|
(TypeError, {'module_a_b': 1}), |
|
767
|
|
|
]) |
|
768
|
|
|
def test_predicate_bad_query(expr, exc_type): |
|
769
|
|
|
pytest.raises(exc_type, Query, **expr) |
|
770
|
|
|
|
|
771
|
|
|
|
|
772
|
|
|
def test_predicate_when(): |
|
773
|
|
|
called = [] |
|
774
|
|
|
assert When(Q(module=1), lambda ev: called.append(ev))({'module': 2}) == False |
|
775
|
|
|
assert called == [] |
|
776
|
|
|
|
|
777
|
|
|
assert When(Q(module=1), lambda ev: called.append(ev))({'module': 1}) == True |
|
778
|
|
|
assert called == [{'module': 1}] |
|
779
|
|
|
|
|
780
|
|
|
called = [] |
|
781
|
|
|
assert Q(module=1, action=lambda ev: called.append(ev))({'module': 1}) == True |
|
782
|
|
|
assert called == [{'module': 1}] |
|
783
|
|
|
|
|
784
|
|
|
called = [[], []] |
|
785
|
|
|
predicate = ( |
|
786
|
|
|
Q(module=1, action=lambda ev: called[0].append(ev)) | |
|
787
|
|
|
Q(module=2, action=lambda ev: called[1].append(ev)) |
|
788
|
|
|
) |
|
789
|
|
|
assert predicate({'module': 1}) == True |
|
790
|
|
|
assert called == [[{'module': 1}], []] |
|
791
|
|
|
|
|
792
|
|
|
assert predicate({'module': 2}) == True |
|
793
|
|
|
assert called == [[{'module': 1}], [{'module': 2}]] |
|
794
|
|
|
|
|
795
|
|
|
called = [[], []] |
|
796
|
|
|
predicate = ( |
|
797
|
|
|
Q(module=1, action=lambda ev: called[0].append(ev)) & |
|
798
|
|
|
Q(function=2, action=lambda ev: called[1].append(ev)) |
|
799
|
|
|
) |
|
800
|
|
|
assert predicate({'module': 2}) == False |
|
801
|
|
|
assert called == [[], []] |
|
802
|
|
|
|
|
803
|
|
|
assert predicate({'module': 1, 'function': 2}) == True |
|
804
|
|
|
assert called == [[{'module': 1, 'function': 2}], [{'module': 1, 'function': 2}]] |
|
805
|
|
|
|
|
806
|
|
|
|
|
807
|
|
|
def test_and_or_kwargs(): |
|
808
|
|
|
assert And(module=1, function=2) == Query(module=1, function=2) |
|
809
|
|
|
assert Or(module=1, function=2) == Or(Query(module=1), Query(function=2)) |
|
810
|
|
|
|
|
811
|
|
|
assert And(3, module=1, function=2) == And(3, Query(module=1, function=2)) |
|
812
|
|
|
assert Or(3, module=1, function=2) == Or(3, Query(module=1), Query(function=2)) |
|
813
|
|
|
|
|
814
|
|
|
|
|
815
|
|
|
def test_proper_backend(): |
|
816
|
|
|
if os.environ.get('PUREPYTHONHUNTER') or platform.python_implementation() == 'PyPy': |
|
817
|
|
|
assert 'hunter.tracer.Tracer' in repr(hunter.Tracer) |
|
818
|
|
|
else: |
|
819
|
|
|
assert 'hunter._tracer.Tracer' in repr(hunter.Tracer) |
|
820
|
|
|
|
|
821
|
|
|
|
|
822
|
|
|
@pytest.fixture(scope="session", params=['pure', 'cython']) |
|
823
|
|
|
def tracer_impl(request): |
|
824
|
|
|
if request.param == 'pure': |
|
825
|
|
|
return pytest.importorskip('hunter.tracer').Tracer |
|
826
|
|
|
elif request.param == 'cython': |
|
827
|
|
|
return pytest.importorskip('hunter._tracer').Tracer |
|
828
|
|
|
|
|
829
|
|
|
|
|
830
|
|
|
def _tokenize(): |
|
831
|
|
|
with open(tokenize.__file__, 'rb') as fh: |
|
832
|
|
|
toks = [] |
|
833
|
|
|
try: |
|
834
|
|
|
for tok in tokenize.tokenize(fh.readline): |
|
835
|
|
|
toks.append(tok) |
|
836
|
|
|
except tokenize.TokenError as exc: |
|
837
|
|
|
toks.append(exc) |
|
838
|
|
|
|
|
839
|
|
|
|
|
840
|
|
|
def test_perf_filter(tracer_impl, benchmark): |
|
841
|
|
|
t = tracer_impl() |
|
842
|
|
|
|
|
843
|
|
|
@benchmark |
|
844
|
|
|
def run(): |
|
845
|
|
|
output = StringIO() |
|
846
|
|
|
with t.trace(Q( |
|
847
|
|
|
Q(module="does-not-exist") | Q(module="does not exist".split()), |
|
848
|
|
|
action=CodePrinter(stream=output) |
|
849
|
|
|
)): |
|
850
|
|
|
_tokenize() |
|
851
|
|
|
return output |
|
852
|
|
|
|
|
853
|
|
|
assert run.getvalue() == '' |
|
854
|
|
|
|
|
855
|
|
|
|
|
856
|
|
|
def test_perf_stdlib(tracer_impl, benchmark): |
|
857
|
|
|
t = tracer_impl() |
|
858
|
|
|
|
|
859
|
|
|
@benchmark |
|
860
|
|
|
def run(): |
|
861
|
|
|
output = StringIO() |
|
862
|
|
|
with t.trace(Q( |
|
863
|
|
|
~Q(module_contains='pytest'), |
|
864
|
|
|
~Q(module_contains='hunter'), |
|
865
|
|
|
~Q(filename=''), |
|
866
|
|
|
stdlib=False, |
|
867
|
|
|
action=CodePrinter(stream=output) |
|
868
|
|
|
)): |
|
869
|
|
|
_tokenize() |
|
870
|
|
|
return output |
|
871
|
|
|
|
|
872
|
|
|
assert run.getvalue() == '' |
|
873
|
|
|
|
|
874
|
|
|
|
|
875
|
|
|
def test_perf_actions(tracer_impl, benchmark): |
|
876
|
|
|
t = tracer_impl() |
|
877
|
|
|
|
|
878
|
|
|
@benchmark |
|
879
|
|
|
def run(): |
|
880
|
|
|
output = StringIO() |
|
881
|
|
|
with t.trace(Q( |
|
882
|
|
|
~Q(module_in=['re', 'sre', 'sre_parse']) & ~Q(module_startswith='namedtuple') & Q(kind="call"), |
|
883
|
|
|
actions=[ |
|
884
|
|
|
CodePrinter( |
|
885
|
|
|
stream=output |
|
886
|
|
|
), |
|
887
|
|
|
VarsPrinter( |
|
888
|
|
|
'line', |
|
889
|
|
|
globals=True, |
|
890
|
|
|
stream=output |
|
891
|
|
|
) |
|
892
|
|
|
] |
|
893
|
|
|
)): |
|
894
|
|
|
_tokenize() |
|
895
|
|
|
|
ionelmc /
python-hunter
