self = <hypothesis.core.StateForActualGivenExecution object at 0x7f8250769048> data = ConjectureData(INTERESTING, 20 bytes, frozen) def _execute_once_for_engine(self, data): """Wrapper around ``execute_once`` that intercepts test failure exceptions and single-test control exceptions, and turns them into appropriate method calls to `data` instead. This allows the engine to assume that any exception other than ``StopTest`` must be a fatal error, and should stop the entire engine. """ try: trace = frozenset() if ( self.failed_normally and not self.failed_due_to_deadline and Phase.shrink in self.settings.phases and Phase.explain in self.settings.phases and sys.gettrace() is None and not PYPY ): # pragma: no cover # This is in fact covered by our *non-coverage* tests, but due to the # settrace() contention *not* by our coverage tests. Ah well. tracer = Tracer() try: sys.settrace(tracer.trace) result = self.execute_once(data) if data.status == Status.VALID: self.explain_traces[None].add(frozenset(tracer.branches)) finally: sys.settrace(None) trace = frozenset(tracer.branches) else: > result = self.execute_once(data) .tox/py3/lib/python3.7/site-packages/hypothesis/core.py:690: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <hypothesis.core.StateForActualGivenExecution object at 0x7f8250769048> data = ConjectureData(INTERESTING, 20 bytes, frozen), print_example = False is_final = False, expected_failure = None def execute_once( self, data, print_example=False, is_final=False, expected_failure=None ): """Run the test function once, using ``data`` as input. If the test raises an exception, it will propagate through to the caller of this method. Depending on its type, this could represent an ordinary test failure, or a fatal error, or a control exception. If this method returns normally, the test might have passed, or it might have placed ``data`` in an unsuccessful state and then swallowed the corresponding control exception. """ data.is_find = self.is_find text_repr = [None] if self.settings.deadline is None: test = self.test else: @proxies(self.test) def test(*args, **kwargs): self.__test_runtime = None initial_draws = len(data.draw_times) start = time.perf_counter() result = self.test(*args, **kwargs) finish = time.perf_counter() internal_draw_time = sum(data.draw_times[initial_draws:]) runtime = datetime.timedelta( seconds=finish - start - internal_draw_time ) self.__test_runtime = runtime current_deadline = self.settings.deadline if not is_final: current_deadline = (current_deadline // 4) * 5 if runtime >= current_deadline: raise DeadlineExceeded(runtime, self.settings.deadline) return result def run(data): # Set up dynamic context needed by a single test run. with local_settings(self.settings): with deterministic_PRNG(): with BuildContext(data, is_final=is_final): # Generate all arguments to the test function. args, kwargs = data.draw(self.search_strategy) if expected_failure is not None: text_repr[0] = arg_string(test, args, kwargs) if print_example or current_verbosity() >= Verbosity.verbose: output = StringIO() printer = RepresentationPrinter(output) if print_example: printer.text("Falsifying example:") else: printer.text("Trying example:") if self.print_given_args: printer.text(" ") printer.text(test.__name__) with printer.group(indent=4, open="(", close=""): printer.break_() for v in args: printer.pretty(v) # We add a comma unconditionally because # generated arguments will always be kwargs, # so there will always be more to come. printer.text(",") printer.breakable() for i, (k, v) in enumerate(kwargs.items()): printer.text(k) printer.text("=") printer.pretty(v) printer.text(",") if i + 1 < len(kwargs): printer.breakable() printer.break_() printer.text(")") printer.flush() report(output.getvalue()) return test(*args, **kwargs) # Run the test function once, via the executor hook. # In most cases this will delegate straight to `run(data)`. > result = self.test_runner(data, run) .tox/py3/lib/python3.7/site-packages/hypothesis/core.py:624: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ data = ConjectureData(INTERESTING, 20 bytes, frozen) function = <function StateForActualGivenExecution.execute_once.<locals>.run at 0x7f825072fea0> def default_new_style_executor(data, function): > return function(data) .tox/py3/lib/python3.7/site-packages/hypothesis/executors.py:52: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ data = ConjectureData(INTERESTING, 20 bytes, frozen) def run(data): # Set up dynamic context needed by a single test run. with local_settings(self.settings): with deterministic_PRNG(): with BuildContext(data, is_final=is_final): # Generate all arguments to the test function. > args, kwargs = data.draw(self.search_strategy) .tox/py3/lib/python3.7/site-packages/hypothesis/core.py:583: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = WithRunner(TupleStrategy((just(()), fixed_dictionaries({'new_revision': new_revision()}).map(lambda args: dict(args, **kwargs)))), runner=<swh.web.tests.conftest._ArchiveData object at 0x7f8252ea63c8>) label = 12316132609319002662 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: return strategy.do_draw(self) else: strategy.validate() try: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:888: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = WithRunner(TupleStrategy((just(()), fixed_dictionaries({'new_revision': new_revision()}).map(lambda args: dict(args, **kwargs)))), runner=<swh.web.tests.conftest._ArchiveData object at 0x7f8252ea63c8>) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data): data.hypothesis_runner = self.runner > return self.mapped_strategy.do_draw(data) .tox/py3/lib/python3.7/site-packages/hypothesis/core.py:222: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = TupleStrategy((just(()), fixed_dictionaries({'new_revision': new_revision()}).map(lambda args: dict(args, **kwargs)))) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data): > return tuple(data.draw(e) for e in self.element_strategies) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/collections.py:61: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .0 = <tuple_iterator object at 0x7f8250755ac8> > return tuple(data.draw(e) for e in self.element_strategies) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/collections.py:61: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = fixed_dictionaries({'new_revision': new_revision()}).map(lambda args: dict(args, **kwargs)) label = 10700208128082112041 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = fixed_dictionaries({'new_revision': new_revision()}).map(lambda args: dict(args, **kwargs)) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data: ConjectureData) -> Ex: for _ in range(3): i = data.index try: data.start_example(MAPPED_SEARCH_STRATEGY_DO_DRAW_LABEL) > result = self.pack(data.draw(self.mapped_strategy)) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/strategies.py:812: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = fixed_dictionaries({'new_revision': new_revision()}) label = 12000696373305623442 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = fixed_dictionaries({'new_revision': new_revision()}) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data): > return data.draw(self.wrapped_strategy) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/lazy.py:168: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = FixedKeysDictStrategy(('new_revision',), TupleStrategy((new_revision()))) label = 12000696373305623442 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = FixedKeysDictStrategy(('new_revision',), TupleStrategy((new_revision()))) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data: ConjectureData) -> Ex: for _ in range(3): i = data.index try: data.start_example(MAPPED_SEARCH_STRATEGY_DO_DRAW_LABEL) > result = self.pack(data.draw(self.mapped_strategy)) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/strategies.py:812: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = TupleStrategy((new_revision())), label = 14943125527945371948 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = TupleStrategy((new_revision())) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data): > return tuple(data.draw(e) for e in self.element_strategies) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/collections.py:61: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .0 = <tuple_iterator object at 0x7f8250755898> > return tuple(data.draw(e) for e in self.element_strategies) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/collections.py:61: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen), strategy = new_revision() label = 10229430183883503684 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = new_revision(), data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data): > return data.draw(self.wrapped_strategy) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/lazy.py:168: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = <hypothesis.strategies._internal.core.CompositeStrategy object at 0x7f825097ee80> label = 10229430183883503684 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <hypothesis.strategies._internal.core.CompositeStrategy object at 0x7f825097ee80> data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data): > return self.definition(data.draw, *self.args, **self.kwargs) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/core.py:1401: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ draw = <bound method ConjectureData.draw of ConjectureData(INTERESTING, 20 bytes, frozen)> @composite def new_revision(draw): """ Hypothesis strategy returning random raw swh revision data not ingested into the test archive. """ return Revision( > directory=draw(sha1().map(hash_to_bytes)), author=draw(new_person()), committer=draw(new_person()), message=draw(text(min_size=20, max_size=100).map(lambda t: t.encode())), date=TimestampWithTimezone.from_datetime(draw(new_swh_date())), committer_date=TimestampWithTimezone.from_datetime(draw(new_swh_date())), synthetic=False, type=RevisionType.GIT, ) .tox/py3/lib/python3.7/site-packages/swh/web/tests/strategies.py:462: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = binary(max_size=20, min_size=20).filter(_filter_checksum).map(hash_to_hex).map(hash_to_bytes) label = 10700208128082112041 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = binary(max_size=20, min_size=20).filter(_filter_checksum).map(hash_to_hex).map(hash_to_bytes) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data: ConjectureData) -> Ex: for _ in range(3): i = data.index try: data.start_example(MAPPED_SEARCH_STRATEGY_DO_DRAW_LABEL) > result = self.pack(data.draw(self.mapped_strategy)) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/strategies.py:812: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = binary(max_size=20, min_size=20).filter(_filter_checksum).map(hash_to_hex) label = 10700208128082112041 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = binary(max_size=20, min_size=20).filter(_filter_checksum).map(hash_to_hex) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data: ConjectureData) -> Ex: for _ in range(3): i = data.index try: data.start_example(MAPPED_SEARCH_STRATEGY_DO_DRAW_LABEL) > result = self.pack(data.draw(self.mapped_strategy)) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/strategies.py:812: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = binary(max_size=20, min_size=20).filter(_filter_checksum) label = 10358930435738099914 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = binary(max_size=20, min_size=20).filter(_filter_checksum) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data): > return data.draw(self.wrapped_strategy) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/lazy.py:168: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen) strategy = <hypothesis.strategies._internal.strings.FixedSizeBytes object at 0x7f82507555c0>.filter(_filter_checksum) label = 10358930435738099914 def draw(self, strategy, label=None): if self.is_find and not strategy.supports_find: raise InvalidArgument( ( "Cannot use strategy %r within a call to find (presumably " "because it would be invalid after the call had ended)." ) % (strategy,) ) at_top_level = self.depth == 0 if at_top_level: # We start this timer early, because accessing attributes on a LazyStrategy # can be almost arbitrarily slow. In cases like characters() and text() # where we cache something expensive, this led to Flaky deadline errors! # See https://github.com/HypothesisWorks/hypothesis/issues/2108 start_time = time.perf_counter() strategy.validate() if strategy.is_empty: self.mark_invalid() if self.depth >= MAX_DEPTH: self.mark_invalid() if label is None: label = strategy.label self.start_example(label=label) try: if not at_top_level: > return strategy.do_draw(self) .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:884: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <hypothesis.strategies._internal.strings.FixedSizeBytes object at 0x7f82507555c0>.filter(_filter_checksum) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_draw(self, data: ConjectureData) -> Ex: > result = self.do_filtered_draw(data) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/strategies.py:918: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <hypothesis.strategies._internal.strings.FixedSizeBytes object at 0x7f82507555c0>.filter(_filter_checksum) data = ConjectureData(INTERESTING, 20 bytes, frozen) def do_filtered_draw(self, data): for i in range(3): start_index = data.index data.start_example(FILTERED_SEARCH_STRATEGY_DO_DRAW_LABEL) value = data.draw(self.filtered_strategy) if self.condition(value): data.stop_example() return value else: > data.stop_example(discard=True) .tox/py3/lib/python3.7/site-packages/hypothesis/strategies/_internal/strategies.py:938: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ConjectureData(INTERESTING, 20 bytes, frozen), discard = True def stop_example(self, discard=False): if self.frozen: return if discard: self.has_discards = True self.depth -= 1 assert self.depth >= -1 self.__example_record.stop_example(discard) labels_for_structure = self.labels_for_structure_stack.pop() if not discard: if self.labels_for_structure_stack: self.labels_for_structure_stack[-1].update(labels_for_structure) else: self.tags.update([structural_coverage(l) for l in labels_for_structure]) if discard: # Once we've discarded an example, every test case starting with # this prefix contains discards. We prune the tree at that point so # as to avoid future test cases bothering with this region, on the # assumption that some example that you could have used instead # there would *not* trigger the discard. This greatly speeds up # test case generation in some cases, because it allows us to # ignore large swathes of the search space that are effectively # redundant. # # A scenario that can cause us problems but which we deliberately # have decided not to support is that if there are side effects # during data generation then you may end up with a scenario where # every good test case generates a discard because the discarded # section sets up important things for later. This is not terribly # likely and all that you see in this case is some degradation in # quality of testing, so we don't worry about it. # # Note that killing the branch does *not* mean we will never # explore below this point, and in particular we may do so during # shrinking. Any explicit request for a data object that starts # with the branch here will work just fine, but novel prefix # generation will avoid it, and we can use it to detect when we # have explored the entire tree (up to redundancy). > self.observer.kill_branch() .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:950: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <hypothesis.internal.conjecture.datatree.TreeRecordingObserver object at 0x7f82513294a8> def kill_branch(self): """Mark this part of the tree as not worth re-exploring.""" if self.killed: return self.killed = True if self.__index_in_current_node < len(self.__current_node.values) or ( self.__current_node.transition is not None and not isinstance(self.__current_node.transition, Killed) ): > inconsistent_generation() .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/datatree.py:380: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ def inconsistent_generation(): raise Flaky( > "Inconsistent data generation! Data generation behaved differently " "between different runs. Is your data generation depending on external " "state?" ) E hypothesis.errors.Flaky: Inconsistent data generation! Data generation behaved differently between different runs. Is your data generation depending on external state? .tox/py3/lib/python3.7/site-packages/hypothesis/internal/conjecture/datatree.py:35: Flaky During handling of the above exception, another exception occurred: archive_data = <swh.web.tests.conftest._ArchiveData object at 0x7f8252ea63c8> @given(new_revision()) > def test_lookup_directory_with_revision_unknown_content(archive_data, new_revision): E hypothesis.errors.Flaky: Inconsistent data generation! Data generation behaved differently between different runs. Is your data generation depending on external state? .tox/py3/lib/python3.7/site-packages/swh/web/tests/common/test_archive.py:384: Flaky