Current File : //opt/alt/python37/lib64/python3.7/site-packages/sqlalchemy/testing/plugin/pytestplugin.py
try:
# installed by bootstrap.py
import sqla_plugin_base as plugin_base
except ImportError:
# assume we're a package, use traditional import
from . import plugin_base
import argparse
import collections
import inspect
import os
import pytest
try:
import xdist # noqa
has_xdist = True
except ImportError:
has_xdist = False
def pytest_addoption(parser):
group = parser.getgroup("sqlalchemy")
def make_option(name, **kw):
callback_ = kw.pop("callback", None)
if callback_:
class CallableAction(argparse.Action):
def __call__(
self, parser, namespace, values, option_string=None
):
callback_(option_string, values, parser)
kw["action"] = CallableAction
zeroarg_callback = kw.pop("zeroarg_callback", None)
if zeroarg_callback:
class CallableAction(argparse.Action):
def __init__(
self,
option_strings,
dest,
default=False,
required=False,
help=None, # noqa
):
super(CallableAction, self).__init__(
option_strings=option_strings,
dest=dest,
nargs=0,
const=True,
default=default,
required=required,
help=help,
)
def __call__(
self, parser, namespace, values, option_string=None
):
zeroarg_callback(option_string, values, parser)
kw["action"] = CallableAction
group.addoption(name, **kw)
plugin_base.setup_options(make_option)
plugin_base.read_config()
def pytest_configure(config):
pytest.register_assert_rewrite("sqlalchemy.testing.assertions")
if hasattr(config, "slaveinput"):
plugin_base.restore_important_follower_config(config.slaveinput)
plugin_base.configure_follower(config.slaveinput["follower_ident"])
else:
if config.option.write_idents and os.path.exists(
config.option.write_idents
):
os.remove(config.option.write_idents)
plugin_base.pre_begin(config.option)
plugin_base.set_coverage_flag(
bool(getattr(config.option, "cov_source", False))
)
plugin_base.set_skip_test(pytest.skip.Exception)
def pytest_sessionstart(session):
plugin_base.post_begin()
def pytest_sessionfinish(session):
plugin_base.final_process_cleanup()
if has_xdist:
import uuid
def pytest_configure_node(node):
# the master for each node fills slaveinput dictionary
# which pytest-xdist will transfer to the subprocess
plugin_base.memoize_important_follower_config(node.slaveinput)
node.slaveinput["follower_ident"] = "test_%s" % uuid.uuid4().hex[0:12]
from sqlalchemy.testing import provision
provision.create_follower_db(node.slaveinput["follower_ident"])
def pytest_testnodedown(node, error):
from sqlalchemy.testing import provision
provision.drop_follower_db(node.slaveinput["follower_ident"])
def pytest_collection_modifyitems(session, config, items):
# look for all those classes that specify __backend__ and
# expand them out into per-database test cases.
# this is much easier to do within pytest_pycollect_makeitem, however
# pytest is iterating through cls.__dict__ as makeitem is
# called which causes a "dictionary changed size" error on py3k.
# I'd submit a pullreq for them to turn it into a list first, but
# it's to suit the rather odd use case here which is that we are adding
# new classes to a module on the fly.
rebuilt_items = collections.defaultdict(
lambda: collections.defaultdict(list)
)
items[:] = [
item
for item in items
if isinstance(item.parent, pytest.Instance)
and not item.parent.parent.name.startswith("_")
]
test_classes = set(item.parent for item in items)
for test_class in test_classes:
for sub_cls in plugin_base.generate_sub_tests(
test_class.cls, test_class.parent.module
):
if sub_cls is not test_class.cls:
per_cls_dict = rebuilt_items[test_class.cls]
for inst in pytest.Class(
sub_cls.__name__, parent=test_class.parent.parent
).collect():
for t in inst.collect():
per_cls_dict[t.name].append(t)
newitems = []
for item in items:
if item.parent.cls in rebuilt_items:
newitems.extend(rebuilt_items[item.parent.cls][item.name])
else:
newitems.append(item)
# seems like the functions attached to a test class aren't sorted already?
# is that true and why's that? (when using unittest, they're sorted)
items[:] = sorted(
newitems,
key=lambda item: (
item.parent.parent.parent.name,
item.parent.parent.name,
item.name,
),
)
def pytest_pycollect_makeitem(collector, name, obj):
if inspect.isclass(obj) and plugin_base.want_class(obj):
return pytest.Class(name, parent=collector)
elif (
inspect.isfunction(obj)
and isinstance(collector, pytest.Instance)
and plugin_base.want_method(collector.cls, obj)
):
return pytest.Function(name, parent=collector)
else:
return []
_current_class = None
def pytest_runtest_setup(item):
# here we seem to get called only based on what we collected
# in pytest_collection_modifyitems. So to do class-based stuff
# we have to tear that out.
global _current_class
if not isinstance(item, pytest.Function):
return
# ... so we're doing a little dance here to figure it out...
if _current_class is None:
class_setup(item.parent.parent)
_current_class = item.parent.parent
# this is needed for the class-level, to ensure that the
# teardown runs after the class is completed with its own
# class-level teardown...
def finalize():
global _current_class
class_teardown(item.parent.parent)
_current_class = None
item.parent.parent.addfinalizer(finalize)
test_setup(item)
def pytest_runtest_teardown(item):
# ...but this works better as the hook here rather than
# using a finalizer, as the finalizer seems to get in the way
# of the test reporting failures correctly (you get a bunch of
# py.test assertion stuff instead)
test_teardown(item)
def test_setup(item):
plugin_base.before_test(
item, item.parent.module.__name__, item.parent.cls, item.name
)
def test_teardown(item):
plugin_base.after_test(item)
def class_setup(item):
plugin_base.start_test_class(item.cls)
def class_teardown(item):
plugin_base.stop_test_class(item.cls)
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