463 lines
16 KiB
Python
463 lines
16 KiB
Python
"""Basic collect and runtest protocol implementations."""
|
|
import bdb
|
|
import os
|
|
import sys
|
|
from typing import Callable
|
|
from typing import cast
|
|
from typing import Dict
|
|
from typing import Generic
|
|
from typing import List
|
|
from typing import Optional
|
|
from typing import Tuple
|
|
from typing import Type
|
|
from typing import TYPE_CHECKING
|
|
from typing import TypeVar
|
|
from typing import Union
|
|
|
|
import attr
|
|
|
|
from .reports import BaseReport
|
|
from .reports import CollectErrorRepr
|
|
from .reports import CollectReport
|
|
from .reports import TestReport
|
|
from _pytest import timing
|
|
from _pytest._code.code import ExceptionChainRepr
|
|
from _pytest._code.code import ExceptionInfo
|
|
from _pytest._code.code import TerminalRepr
|
|
from _pytest.compat import final
|
|
from _pytest.config.argparsing import Parser
|
|
from _pytest.nodes import Collector
|
|
from _pytest.nodes import Item
|
|
from _pytest.nodes import Node
|
|
from _pytest.outcomes import Exit
|
|
from _pytest.outcomes import Skipped
|
|
from _pytest.outcomes import TEST_OUTCOME
|
|
|
|
if TYPE_CHECKING:
|
|
from typing_extensions import Literal
|
|
|
|
from _pytest.main import Session
|
|
from _pytest.terminal import TerminalReporter
|
|
|
|
#
|
|
# pytest plugin hooks.
|
|
|
|
|
|
def pytest_addoption(parser: Parser) -> None:
|
|
group = parser.getgroup("terminal reporting", "reporting", after="general")
|
|
group.addoption(
|
|
"--durations",
|
|
action="store",
|
|
type=int,
|
|
default=None,
|
|
metavar="N",
|
|
help="show N slowest setup/test durations (N=0 for all).",
|
|
)
|
|
group.addoption(
|
|
"--durations-min",
|
|
action="store",
|
|
type=float,
|
|
default=0.005,
|
|
metavar="N",
|
|
help="Minimal duration in seconds for inclusion in slowest list. Default 0.005",
|
|
)
|
|
|
|
|
|
def pytest_terminal_summary(terminalreporter: "TerminalReporter") -> None:
|
|
durations = terminalreporter.config.option.durations
|
|
durations_min = terminalreporter.config.option.durations_min
|
|
verbose = terminalreporter.config.getvalue("verbose")
|
|
if durations is None:
|
|
return
|
|
tr = terminalreporter
|
|
dlist = []
|
|
for replist in tr.stats.values():
|
|
for rep in replist:
|
|
if hasattr(rep, "duration"):
|
|
dlist.append(rep)
|
|
if not dlist:
|
|
return
|
|
dlist.sort(key=lambda x: x.duration, reverse=True) # type: ignore[no-any-return]
|
|
if not durations:
|
|
tr.write_sep("=", "slowest durations")
|
|
else:
|
|
tr.write_sep("=", "slowest %s durations" % durations)
|
|
dlist = dlist[:durations]
|
|
|
|
for i, rep in enumerate(dlist):
|
|
if verbose < 2 and rep.duration < durations_min:
|
|
tr.write_line("")
|
|
tr.write_line(
|
|
"(%s durations < %gs hidden. Use -vv to show these durations.)"
|
|
% (len(dlist) - i, durations_min)
|
|
)
|
|
break
|
|
tr.write_line(f"{rep.duration:02.2f}s {rep.when:<8} {rep.nodeid}")
|
|
|
|
|
|
def pytest_sessionstart(session: "Session") -> None:
|
|
session._setupstate = SetupState()
|
|
|
|
|
|
def pytest_sessionfinish(session: "Session") -> None:
|
|
session._setupstate.teardown_all()
|
|
|
|
|
|
def pytest_runtest_protocol(item: Item, nextitem: Optional[Item]) -> bool:
|
|
ihook = item.ihook
|
|
ihook.pytest_runtest_logstart(nodeid=item.nodeid, location=item.location)
|
|
runtestprotocol(item, nextitem=nextitem)
|
|
ihook.pytest_runtest_logfinish(nodeid=item.nodeid, location=item.location)
|
|
return True
|
|
|
|
|
|
def runtestprotocol(
|
|
item: Item, log: bool = True, nextitem: Optional[Item] = None
|
|
) -> List[TestReport]:
|
|
hasrequest = hasattr(item, "_request")
|
|
if hasrequest and not item._request: # type: ignore[attr-defined]
|
|
item._initrequest() # type: ignore[attr-defined]
|
|
rep = call_and_report(item, "setup", log)
|
|
reports = [rep]
|
|
if rep.passed:
|
|
if item.config.getoption("setupshow", False):
|
|
show_test_item(item)
|
|
if not item.config.getoption("setuponly", False):
|
|
reports.append(call_and_report(item, "call", log))
|
|
reports.append(call_and_report(item, "teardown", log, nextitem=nextitem))
|
|
# After all teardown hooks have been called
|
|
# want funcargs and request info to go away.
|
|
if hasrequest:
|
|
item._request = False # type: ignore[attr-defined]
|
|
item.funcargs = None # type: ignore[attr-defined]
|
|
return reports
|
|
|
|
|
|
def show_test_item(item: Item) -> None:
|
|
"""Show test function, parameters and the fixtures of the test item."""
|
|
tw = item.config.get_terminal_writer()
|
|
tw.line()
|
|
tw.write(" " * 8)
|
|
tw.write(item.nodeid)
|
|
used_fixtures = sorted(getattr(item, "fixturenames", []))
|
|
if used_fixtures:
|
|
tw.write(" (fixtures used: {})".format(", ".join(used_fixtures)))
|
|
tw.flush()
|
|
|
|
|
|
def pytest_runtest_setup(item: Item) -> None:
|
|
_update_current_test_var(item, "setup")
|
|
item.session._setupstate.prepare(item)
|
|
|
|
|
|
def pytest_runtest_call(item: Item) -> None:
|
|
_update_current_test_var(item, "call")
|
|
try:
|
|
del sys.last_type
|
|
del sys.last_value
|
|
del sys.last_traceback
|
|
except AttributeError:
|
|
pass
|
|
try:
|
|
item.runtest()
|
|
except Exception as e:
|
|
# Store trace info to allow postmortem debugging
|
|
sys.last_type = type(e)
|
|
sys.last_value = e
|
|
assert e.__traceback__ is not None
|
|
# Skip *this* frame
|
|
sys.last_traceback = e.__traceback__.tb_next
|
|
raise e
|
|
|
|
|
|
def pytest_runtest_teardown(item: Item, nextitem: Optional[Item]) -> None:
|
|
_update_current_test_var(item, "teardown")
|
|
item.session._setupstate.teardown_exact(item, nextitem)
|
|
_update_current_test_var(item, None)
|
|
|
|
|
|
def _update_current_test_var(
|
|
item: Item, when: Optional["Literal['setup', 'call', 'teardown']"]
|
|
) -> None:
|
|
"""Update :envvar:`PYTEST_CURRENT_TEST` to reflect the current item and stage.
|
|
|
|
If ``when`` is None, delete ``PYTEST_CURRENT_TEST`` from the environment.
|
|
"""
|
|
var_name = "PYTEST_CURRENT_TEST"
|
|
if when:
|
|
value = f"{item.nodeid} ({when})"
|
|
# don't allow null bytes on environment variables (see #2644, #2957)
|
|
value = value.replace("\x00", "(null)")
|
|
os.environ[var_name] = value
|
|
else:
|
|
os.environ.pop(var_name)
|
|
|
|
|
|
def pytest_report_teststatus(report: BaseReport) -> Optional[Tuple[str, str, str]]:
|
|
if report.when in ("setup", "teardown"):
|
|
if report.failed:
|
|
# category, shortletter, verbose-word
|
|
return "error", "E", "ERROR"
|
|
elif report.skipped:
|
|
return "skipped", "s", "SKIPPED"
|
|
else:
|
|
return "", "", ""
|
|
return None
|
|
|
|
|
|
#
|
|
# Implementation
|
|
|
|
|
|
def call_and_report(
|
|
item: Item, when: "Literal['setup', 'call', 'teardown']", log: bool = True, **kwds
|
|
) -> TestReport:
|
|
call = call_runtest_hook(item, when, **kwds)
|
|
hook = item.ihook
|
|
report: TestReport = hook.pytest_runtest_makereport(item=item, call=call)
|
|
if log:
|
|
hook.pytest_runtest_logreport(report=report)
|
|
if check_interactive_exception(call, report):
|
|
hook.pytest_exception_interact(node=item, call=call, report=report)
|
|
return report
|
|
|
|
|
|
def check_interactive_exception(call: "CallInfo[object]", report: BaseReport) -> bool:
|
|
"""Check whether the call raised an exception that should be reported as
|
|
interactive."""
|
|
if call.excinfo is None:
|
|
# Didn't raise.
|
|
return False
|
|
if hasattr(report, "wasxfail"):
|
|
# Exception was expected.
|
|
return False
|
|
if isinstance(call.excinfo.value, (Skipped, bdb.BdbQuit)):
|
|
# Special control flow exception.
|
|
return False
|
|
return True
|
|
|
|
|
|
def call_runtest_hook(
|
|
item: Item, when: "Literal['setup', 'call', 'teardown']", **kwds
|
|
) -> "CallInfo[None]":
|
|
if when == "setup":
|
|
ihook: Callable[..., None] = item.ihook.pytest_runtest_setup
|
|
elif when == "call":
|
|
ihook = item.ihook.pytest_runtest_call
|
|
elif when == "teardown":
|
|
ihook = item.ihook.pytest_runtest_teardown
|
|
else:
|
|
assert False, f"Unhandled runtest hook case: {when}"
|
|
reraise: Tuple[Type[BaseException], ...] = (Exit,)
|
|
if not item.config.getoption("usepdb", False):
|
|
reraise += (KeyboardInterrupt,)
|
|
return CallInfo.from_call(
|
|
lambda: ihook(item=item, **kwds), when=when, reraise=reraise
|
|
)
|
|
|
|
|
|
TResult = TypeVar("TResult", covariant=True)
|
|
|
|
|
|
@final
|
|
@attr.s(repr=False)
|
|
class CallInfo(Generic[TResult]):
|
|
"""Result/Exception info a function invocation.
|
|
|
|
:param T result:
|
|
The return value of the call, if it didn't raise. Can only be
|
|
accessed if excinfo is None.
|
|
:param Optional[ExceptionInfo] excinfo:
|
|
The captured exception of the call, if it raised.
|
|
:param float start:
|
|
The system time when the call started, in seconds since the epoch.
|
|
:param float stop:
|
|
The system time when the call ended, in seconds since the epoch.
|
|
:param float duration:
|
|
The call duration, in seconds.
|
|
:param str when:
|
|
The context of invocation: "setup", "call", "teardown", ...
|
|
"""
|
|
|
|
_result = attr.ib(type="Optional[TResult]")
|
|
excinfo = attr.ib(type=Optional[ExceptionInfo[BaseException]])
|
|
start = attr.ib(type=float)
|
|
stop = attr.ib(type=float)
|
|
duration = attr.ib(type=float)
|
|
when = attr.ib(type="Literal['collect', 'setup', 'call', 'teardown']")
|
|
|
|
@property
|
|
def result(self) -> TResult:
|
|
if self.excinfo is not None:
|
|
raise AttributeError(f"{self!r} has no valid result")
|
|
# The cast is safe because an exception wasn't raised, hence
|
|
# _result has the expected function return type (which may be
|
|
# None, that's why a cast and not an assert).
|
|
return cast(TResult, self._result)
|
|
|
|
@classmethod
|
|
def from_call(
|
|
cls,
|
|
func: "Callable[[], TResult]",
|
|
when: "Literal['collect', 'setup', 'call', 'teardown']",
|
|
reraise: Optional[
|
|
Union[Type[BaseException], Tuple[Type[BaseException], ...]]
|
|
] = None,
|
|
) -> "CallInfo[TResult]":
|
|
excinfo = None
|
|
start = timing.time()
|
|
precise_start = timing.perf_counter()
|
|
try:
|
|
result: Optional[TResult] = func()
|
|
except BaseException:
|
|
excinfo = ExceptionInfo.from_current()
|
|
if reraise is not None and isinstance(excinfo.value, reraise):
|
|
raise
|
|
result = None
|
|
# use the perf counter
|
|
precise_stop = timing.perf_counter()
|
|
duration = precise_stop - precise_start
|
|
stop = timing.time()
|
|
return cls(
|
|
start=start,
|
|
stop=stop,
|
|
duration=duration,
|
|
when=when,
|
|
result=result,
|
|
excinfo=excinfo,
|
|
)
|
|
|
|
def __repr__(self) -> str:
|
|
if self.excinfo is None:
|
|
return f"<CallInfo when={self.when!r} result: {self._result!r}>"
|
|
return f"<CallInfo when={self.when!r} excinfo={self.excinfo!r}>"
|
|
|
|
|
|
def pytest_runtest_makereport(item: Item, call: CallInfo[None]) -> TestReport:
|
|
return TestReport.from_item_and_call(item, call)
|
|
|
|
|
|
def pytest_make_collect_report(collector: Collector) -> CollectReport:
|
|
call = CallInfo.from_call(lambda: list(collector.collect()), "collect")
|
|
longrepr: Union[None, Tuple[str, int, str], str, TerminalRepr] = None
|
|
if not call.excinfo:
|
|
outcome: Literal["passed", "skipped", "failed"] = "passed"
|
|
else:
|
|
skip_exceptions = [Skipped]
|
|
unittest = sys.modules.get("unittest")
|
|
if unittest is not None:
|
|
# Type ignored because unittest is loaded dynamically.
|
|
skip_exceptions.append(unittest.SkipTest) # type: ignore
|
|
if isinstance(call.excinfo.value, tuple(skip_exceptions)):
|
|
outcome = "skipped"
|
|
r_ = collector._repr_failure_py(call.excinfo, "line")
|
|
assert isinstance(r_, ExceptionChainRepr), repr(r_)
|
|
r = r_.reprcrash
|
|
assert r
|
|
longrepr = (str(r.path), r.lineno, r.message)
|
|
else:
|
|
outcome = "failed"
|
|
errorinfo = collector.repr_failure(call.excinfo)
|
|
if not hasattr(errorinfo, "toterminal"):
|
|
assert isinstance(errorinfo, str)
|
|
errorinfo = CollectErrorRepr(errorinfo)
|
|
longrepr = errorinfo
|
|
result = call.result if not call.excinfo else None
|
|
rep = CollectReport(collector.nodeid, outcome, longrepr, result)
|
|
rep.call = call # type: ignore # see collect_one_node
|
|
return rep
|
|
|
|
|
|
class SetupState:
|
|
"""Shared state for setting up/tearing down test items or collectors."""
|
|
|
|
def __init__(self):
|
|
self.stack: List[Node] = []
|
|
self._finalizers: Dict[Node, List[Callable[[], object]]] = {}
|
|
|
|
def addfinalizer(self, finalizer: Callable[[], object], colitem) -> None:
|
|
"""Attach a finalizer to the given colitem."""
|
|
assert colitem and not isinstance(colitem, tuple)
|
|
assert callable(finalizer)
|
|
# assert colitem in self.stack # some unit tests don't setup stack :/
|
|
self._finalizers.setdefault(colitem, []).append(finalizer)
|
|
|
|
def _pop_and_teardown(self):
|
|
colitem = self.stack.pop()
|
|
self._teardown_with_finalization(colitem)
|
|
|
|
def _callfinalizers(self, colitem) -> None:
|
|
finalizers = self._finalizers.pop(colitem, None)
|
|
exc = None
|
|
while finalizers:
|
|
fin = finalizers.pop()
|
|
try:
|
|
fin()
|
|
except TEST_OUTCOME as e:
|
|
# XXX Only first exception will be seen by user,
|
|
# ideally all should be reported.
|
|
if exc is None:
|
|
exc = e
|
|
if exc:
|
|
raise exc
|
|
|
|
def _teardown_with_finalization(self, colitem) -> None:
|
|
self._callfinalizers(colitem)
|
|
colitem.teardown()
|
|
for colitem in self._finalizers:
|
|
assert colitem in self.stack
|
|
|
|
def teardown_all(self) -> None:
|
|
while self.stack:
|
|
self._pop_and_teardown()
|
|
for key in list(self._finalizers):
|
|
self._teardown_with_finalization(key)
|
|
assert not self._finalizers
|
|
|
|
def teardown_exact(self, item, nextitem) -> None:
|
|
needed_collectors = nextitem and nextitem.listchain() or []
|
|
self._teardown_towards(needed_collectors)
|
|
|
|
def _teardown_towards(self, needed_collectors) -> None:
|
|
exc = None
|
|
while self.stack:
|
|
if self.stack == needed_collectors[: len(self.stack)]:
|
|
break
|
|
try:
|
|
self._pop_and_teardown()
|
|
except TEST_OUTCOME as e:
|
|
# XXX Only first exception will be seen by user,
|
|
# ideally all should be reported.
|
|
if exc is None:
|
|
exc = e
|
|
if exc:
|
|
raise exc
|
|
|
|
def prepare(self, colitem) -> None:
|
|
"""Setup objects along the collector chain to the test-method."""
|
|
|
|
# Check if the last collection node has raised an error.
|
|
for col in self.stack:
|
|
if hasattr(col, "_prepare_exc"):
|
|
exc = col._prepare_exc # type: ignore[attr-defined]
|
|
raise exc
|
|
|
|
needed_collectors = colitem.listchain()
|
|
for col in needed_collectors[len(self.stack) :]:
|
|
self.stack.append(col)
|
|
try:
|
|
col.setup()
|
|
except TEST_OUTCOME as e:
|
|
col._prepare_exc = e # type: ignore[attr-defined]
|
|
raise e
|
|
|
|
|
|
def collect_one_node(collector: Collector) -> CollectReport:
|
|
ihook = collector.ihook
|
|
ihook.pytest_collectstart(collector=collector)
|
|
rep: CollectReport = ihook.pytest_make_collect_report(collector=collector)
|
|
call = rep.__dict__.pop("call", None)
|
|
if call and check_interactive_exception(call, rep):
|
|
ihook.pytest_exception_interact(node=collector, call=call, report=rep)
|
|
return rep
|