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authorcyfraeviolae <cyfraeviolae>2024-04-03 03:10:44 -0400
committercyfraeviolae <cyfraeviolae>2024-04-03 03:10:44 -0400
commit6d7ba58f880be618ade07f8ea080fe8c4bf8a896 (patch)
treeb1c931051ffcebd2bd9d61d98d6233ffa289bbce /venv/lib/python3.11/site-packages/sqlalchemy/testing/plugin/plugin_base.py
parent4f884c9abc32990b4061a1bb6997b4b37e58ea0b (diff)
venv
Diffstat (limited to 'venv/lib/python3.11/site-packages/sqlalchemy/testing/plugin/plugin_base.py')
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+# testing/plugin/plugin_base.py
+# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+# mypy: ignore-errors
+
+
+from __future__ import annotations
+
+import abc
+from argparse import Namespace
+import configparser
+import logging
+import os
+from pathlib import Path
+import re
+import sys
+from typing import Any
+
+from sqlalchemy.testing import asyncio
+
+"""Testing extensions.
+
+this module is designed to work as a testing-framework-agnostic library,
+created so that multiple test frameworks can be supported at once
+(mostly so that we can migrate to new ones). The current target
+is pytest.
+
+"""
+
+# flag which indicates we are in the SQLAlchemy testing suite,
+# and not that of Alembic or a third party dialect.
+bootstrapped_as_sqlalchemy = False
+
+log = logging.getLogger("sqlalchemy.testing.plugin_base")
+
+# late imports
+fixtures = None
+engines = None
+exclusions = None
+warnings = None
+profiling = None
+provision = None
+assertions = None
+requirements = None
+config = None
+testing = None
+util = None
+file_config = None
+
+logging = None
+include_tags = set()
+exclude_tags = set()
+options: Namespace = None # type: ignore
+
+
+def setup_options(make_option):
+ make_option(
+ "--log-info",
+ action="callback",
+ type=str,
+ callback=_log,
+ help="turn on info logging for <LOG> (multiple OK)",
+ )
+ make_option(
+ "--log-debug",
+ action="callback",
+ type=str,
+ callback=_log,
+ help="turn on debug logging for <LOG> (multiple OK)",
+ )
+ make_option(
+ "--db",
+ action="append",
+ type=str,
+ dest="db",
+ help="Use prefab database uri. Multiple OK, "
+ "first one is run by default.",
+ )
+ make_option(
+ "--dbs",
+ action="callback",
+ zeroarg_callback=_list_dbs,
+ help="List available prefab dbs",
+ )
+ make_option(
+ "--dburi",
+ action="append",
+ type=str,
+ dest="dburi",
+ help="Database uri. Multiple OK, first one is run by default.",
+ )
+ make_option(
+ "--dbdriver",
+ action="append",
+ type=str,
+ dest="dbdriver",
+ help="Additional database drivers to include in tests. "
+ "These are linked to the existing database URLs by the "
+ "provisioning system.",
+ )
+ make_option(
+ "--dropfirst",
+ action="store_true",
+ dest="dropfirst",
+ help="Drop all tables in the target database first",
+ )
+ make_option(
+ "--disable-asyncio",
+ action="store_true",
+ help="disable test / fixtures / provisoning running in asyncio",
+ )
+ make_option(
+ "--backend-only",
+ action="callback",
+ zeroarg_callback=_set_tag_include("backend"),
+ help=(
+ "Run only tests marked with __backend__ or __sparse_backend__; "
+ "this is now equivalent to the pytest -m backend mark expression"
+ ),
+ )
+ make_option(
+ "--nomemory",
+ action="callback",
+ zeroarg_callback=_set_tag_exclude("memory_intensive"),
+ help="Don't run memory profiling tests; "
+ "this is now equivalent to the pytest -m 'not memory_intensive' "
+ "mark expression",
+ )
+ make_option(
+ "--notimingintensive",
+ action="callback",
+ zeroarg_callback=_set_tag_exclude("timing_intensive"),
+ help="Don't run timing intensive tests; "
+ "this is now equivalent to the pytest -m 'not timing_intensive' "
+ "mark expression",
+ )
+ make_option(
+ "--nomypy",
+ action="callback",
+ zeroarg_callback=_set_tag_exclude("mypy"),
+ help="Don't run mypy typing tests; "
+ "this is now equivalent to the pytest -m 'not mypy' mark expression",
+ )
+ make_option(
+ "--profile-sort",
+ type=str,
+ default="cumulative",
+ dest="profilesort",
+ help="Type of sort for profiling standard output",
+ )
+ make_option(
+ "--profile-dump",
+ type=str,
+ dest="profiledump",
+ help="Filename where a single profile run will be dumped",
+ )
+ make_option(
+ "--low-connections",
+ action="store_true",
+ dest="low_connections",
+ help="Use a low number of distinct connections - "
+ "i.e. for Oracle TNS",
+ )
+ make_option(
+ "--write-idents",
+ type=str,
+ dest="write_idents",
+ help="write out generated follower idents to <file>, "
+ "when -n<num> is used",
+ )
+ make_option(
+ "--requirements",
+ action="callback",
+ type=str,
+ callback=_requirements_opt,
+ help="requirements class for testing, overrides setup.cfg",
+ )
+ make_option(
+ "--include-tag",
+ action="callback",
+ callback=_include_tag,
+ type=str,
+ help="Include tests with tag <tag>; "
+ "legacy, use pytest -m 'tag' instead",
+ )
+ make_option(
+ "--exclude-tag",
+ action="callback",
+ callback=_exclude_tag,
+ type=str,
+ help="Exclude tests with tag <tag>; "
+ "legacy, use pytest -m 'not tag' instead",
+ )
+ make_option(
+ "--write-profiles",
+ action="store_true",
+ dest="write_profiles",
+ default=False,
+ help="Write/update failing profiling data.",
+ )
+ make_option(
+ "--force-write-profiles",
+ action="store_true",
+ dest="force_write_profiles",
+ default=False,
+ help="Unconditionally write/update profiling data.",
+ )
+ make_option(
+ "--dump-pyannotate",
+ type=str,
+ dest="dump_pyannotate",
+ help="Run pyannotate and dump json info to given file",
+ )
+ make_option(
+ "--mypy-extra-test-path",
+ type=str,
+ action="append",
+ default=[],
+ dest="mypy_extra_test_paths",
+ help="Additional test directories to add to the mypy tests. "
+ "This is used only when running mypy tests. Multiple OK",
+ )
+ # db specific options
+ make_option(
+ "--postgresql-templatedb",
+ type=str,
+ help="name of template database to use for PostgreSQL "
+ "CREATE DATABASE (defaults to current database)",
+ )
+ make_option(
+ "--oracledb-thick-mode",
+ action="store_true",
+ help="enables the 'thick mode' when testing with oracle+oracledb",
+ )
+
+
+def configure_follower(follower_ident):
+ """Configure required state for a follower.
+
+ This invokes in the parent process and typically includes
+ database creation.
+
+ """
+ from sqlalchemy.testing import provision
+
+ provision.FOLLOWER_IDENT = follower_ident
+
+
+def memoize_important_follower_config(dict_):
+ """Store important configuration we will need to send to a follower.
+
+ This invokes in the parent process after normal config is set up.
+
+ Hook is currently not used.
+
+ """
+
+
+def restore_important_follower_config(dict_):
+ """Restore important configuration needed by a follower.
+
+ This invokes in the follower process.
+
+ Hook is currently not used.
+
+ """
+
+
+def read_config(root_path):
+ global file_config
+ file_config = configparser.ConfigParser()
+ file_config.read(
+ [str(root_path / "setup.cfg"), str(root_path / "test.cfg")]
+ )
+
+
+def pre_begin(opt):
+ """things to set up early, before coverage might be setup."""
+ global options
+ options = opt
+ for fn in pre_configure:
+ fn(options, file_config)
+
+
+def set_coverage_flag(value):
+ options.has_coverage = value
+
+
+def post_begin():
+ """things to set up later, once we know coverage is running."""
+ # Lazy setup of other options (post coverage)
+ for fn in post_configure:
+ fn(options, file_config)
+
+ # late imports, has to happen after config.
+ global util, fixtures, engines, exclusions, assertions, provision
+ global warnings, profiling, config, testing
+ from sqlalchemy import testing # noqa
+ from sqlalchemy.testing import fixtures, engines, exclusions # noqa
+ from sqlalchemy.testing import assertions, warnings, profiling # noqa
+ from sqlalchemy.testing import config, provision # noqa
+ from sqlalchemy import util # noqa
+
+ warnings.setup_filters()
+
+
+def _log(opt_str, value, parser):
+ global logging
+ if not logging:
+ import logging
+
+ logging.basicConfig()
+
+ if opt_str.endswith("-info"):
+ logging.getLogger(value).setLevel(logging.INFO)
+ elif opt_str.endswith("-debug"):
+ logging.getLogger(value).setLevel(logging.DEBUG)
+
+
+def _list_dbs(*args):
+ if file_config is None:
+ # assume the current working directory is the one containing the
+ # setup file
+ read_config(Path.cwd())
+ print("Available --db options (use --dburi to override)")
+ for macro in sorted(file_config.options("db")):
+ print("%20s\t%s" % (macro, file_config.get("db", macro)))
+ sys.exit(0)
+
+
+def _requirements_opt(opt_str, value, parser):
+ _setup_requirements(value)
+
+
+def _set_tag_include(tag):
+ def _do_include_tag(opt_str, value, parser):
+ _include_tag(opt_str, tag, parser)
+
+ return _do_include_tag
+
+
+def _set_tag_exclude(tag):
+ def _do_exclude_tag(opt_str, value, parser):
+ _exclude_tag(opt_str, tag, parser)
+
+ return _do_exclude_tag
+
+
+def _exclude_tag(opt_str, value, parser):
+ exclude_tags.add(value.replace("-", "_"))
+
+
+def _include_tag(opt_str, value, parser):
+ include_tags.add(value.replace("-", "_"))
+
+
+pre_configure = []
+post_configure = []
+
+
+def pre(fn):
+ pre_configure.append(fn)
+ return fn
+
+
+def post(fn):
+ post_configure.append(fn)
+ return fn
+
+
+@pre
+def _setup_options(opt, file_config):
+ global options
+ options = opt
+
+
+@pre
+def _register_sqlite_numeric_dialect(opt, file_config):
+ from sqlalchemy.dialects import registry
+
+ registry.register(
+ "sqlite.pysqlite_numeric",
+ "sqlalchemy.dialects.sqlite.pysqlite",
+ "_SQLiteDialect_pysqlite_numeric",
+ )
+ registry.register(
+ "sqlite.pysqlite_dollar",
+ "sqlalchemy.dialects.sqlite.pysqlite",
+ "_SQLiteDialect_pysqlite_dollar",
+ )
+
+
+@post
+def __ensure_cext(opt, file_config):
+ if os.environ.get("REQUIRE_SQLALCHEMY_CEXT", "0") == "1":
+ from sqlalchemy.util import has_compiled_ext
+
+ try:
+ has_compiled_ext(raise_=True)
+ except ImportError as err:
+ raise AssertionError(
+ "REQUIRE_SQLALCHEMY_CEXT is set but can't import the "
+ "cython extensions"
+ ) from err
+
+
+@post
+def _init_symbols(options, file_config):
+ from sqlalchemy.testing import config
+
+ config._fixture_functions = _fixture_fn_class()
+
+
+@pre
+def _set_disable_asyncio(opt, file_config):
+ if opt.disable_asyncio:
+ asyncio.ENABLE_ASYNCIO = False
+
+
+@post
+def _engine_uri(options, file_config):
+ from sqlalchemy import testing
+ from sqlalchemy.testing import config
+ from sqlalchemy.testing import provision
+ from sqlalchemy.engine import url as sa_url
+
+ if options.dburi:
+ db_urls = list(options.dburi)
+ else:
+ db_urls = []
+
+ extra_drivers = options.dbdriver or []
+
+ if options.db:
+ for db_token in options.db:
+ for db in re.split(r"[,\s]+", db_token):
+ if db not in file_config.options("db"):
+ raise RuntimeError(
+ "Unknown URI specifier '%s'. "
+ "Specify --dbs for known uris." % db
+ )
+ else:
+ db_urls.append(file_config.get("db", db))
+
+ if not db_urls:
+ db_urls.append(file_config.get("db", "default"))
+
+ config._current = None
+
+ if options.write_idents and provision.FOLLOWER_IDENT:
+ for db_url in [sa_url.make_url(db_url) for db_url in db_urls]:
+ with open(options.write_idents, "a") as file_:
+ file_.write(
+ f"{provision.FOLLOWER_IDENT} "
+ f"{db_url.render_as_string(hide_password=False)}\n"
+ )
+
+ expanded_urls = list(provision.generate_db_urls(db_urls, extra_drivers))
+
+ for db_url in expanded_urls:
+ log.info("Adding database URL: %s", db_url)
+
+ cfg = provision.setup_config(
+ db_url, options, file_config, provision.FOLLOWER_IDENT
+ )
+ if not config._current:
+ cfg.set_as_current(cfg, testing)
+
+
+@post
+def _requirements(options, file_config):
+ requirement_cls = file_config.get("sqla_testing", "requirement_cls")
+ _setup_requirements(requirement_cls)
+
+
+def _setup_requirements(argument):
+ from sqlalchemy.testing import config
+ from sqlalchemy import testing
+
+ modname, clsname = argument.split(":")
+
+ # importlib.import_module() only introduced in 2.7, a little
+ # late
+ mod = __import__(modname)
+ for component in modname.split(".")[1:]:
+ mod = getattr(mod, component)
+ req_cls = getattr(mod, clsname)
+
+ config.requirements = testing.requires = req_cls()
+
+ config.bootstrapped_as_sqlalchemy = bootstrapped_as_sqlalchemy
+
+
+@post
+def _prep_testing_database(options, file_config):
+ from sqlalchemy.testing import config
+
+ if options.dropfirst:
+ from sqlalchemy.testing import provision
+
+ for cfg in config.Config.all_configs():
+ provision.drop_all_schema_objects(cfg, cfg.db)
+
+
+@post
+def _post_setup_options(opt, file_config):
+ from sqlalchemy.testing import config
+
+ config.options = options
+ config.file_config = file_config
+
+
+@post
+def _setup_profiling(options, file_config):
+ from sqlalchemy.testing import profiling
+
+ profiling._profile_stats = profiling.ProfileStatsFile(
+ file_config.get("sqla_testing", "profile_file"),
+ sort=options.profilesort,
+ dump=options.profiledump,
+ )
+
+
+def want_class(name, cls):
+ if not issubclass(cls, fixtures.TestBase):
+ return False
+ elif name.startswith("_"):
+ return False
+ else:
+ return True
+
+
+def want_method(cls, fn):
+ if not fn.__name__.startswith("test_"):
+ return False
+ elif fn.__module__ is None:
+ return False
+ else:
+ return True
+
+
+def generate_sub_tests(cls, module, markers):
+ if "backend" in markers or "sparse_backend" in markers:
+ sparse = "sparse_backend" in markers
+ for cfg in _possible_configs_for_cls(cls, sparse=sparse):
+ orig_name = cls.__name__
+
+ # we can have special chars in these names except for the
+ # pytest junit plugin, which is tripped up by the brackets
+ # and periods, so sanitize
+
+ alpha_name = re.sub(r"[_\[\]\.]+", "_", cfg.name)
+ alpha_name = re.sub(r"_+$", "", alpha_name)
+ name = "%s_%s" % (cls.__name__, alpha_name)
+ subcls = type(
+ name,
+ (cls,),
+ {"_sa_orig_cls_name": orig_name, "__only_on_config__": cfg},
+ )
+ setattr(module, name, subcls)
+ yield subcls
+ else:
+ yield cls
+
+
+def start_test_class_outside_fixtures(cls):
+ _do_skips(cls)
+ _setup_engine(cls)
+
+
+def stop_test_class(cls):
+ # close sessions, immediate connections, etc.
+ fixtures.stop_test_class_inside_fixtures(cls)
+
+ # close outstanding connection pool connections, dispose of
+ # additional engines
+ engines.testing_reaper.stop_test_class_inside_fixtures()
+
+
+def stop_test_class_outside_fixtures(cls):
+ engines.testing_reaper.stop_test_class_outside_fixtures()
+ provision.stop_test_class_outside_fixtures(config, config.db, cls)
+ try:
+ if not options.low_connections:
+ assertions.global_cleanup_assertions()
+ finally:
+ _restore_engine()
+
+
+def _restore_engine():
+ if config._current:
+ config._current.reset(testing)
+
+
+def final_process_cleanup():
+ engines.testing_reaper.final_cleanup()
+ assertions.global_cleanup_assertions()
+ _restore_engine()
+
+
+def _setup_engine(cls):
+ if getattr(cls, "__engine_options__", None):
+ opts = dict(cls.__engine_options__)
+ opts["scope"] = "class"
+ eng = engines.testing_engine(options=opts)
+ config._current.push_engine(eng, testing)
+
+
+def before_test(test, test_module_name, test_class, test_name):
+ # format looks like:
+ # "test.aaa_profiling.test_compiler.CompileTest.test_update_whereclause"
+
+ name = getattr(test_class, "_sa_orig_cls_name", test_class.__name__)
+
+ id_ = "%s.%s.%s" % (test_module_name, name, test_name)
+
+ profiling._start_current_test(id_)
+
+
+def after_test(test):
+ fixtures.after_test()
+ engines.testing_reaper.after_test()
+
+
+def after_test_fixtures(test):
+ engines.testing_reaper.after_test_outside_fixtures(test)
+
+
+def _possible_configs_for_cls(cls, reasons=None, sparse=False):
+ all_configs = set(config.Config.all_configs())
+
+ if cls.__unsupported_on__:
+ spec = exclusions.db_spec(*cls.__unsupported_on__)
+ for config_obj in list(all_configs):
+ if spec(config_obj):
+ all_configs.remove(config_obj)
+
+ if getattr(cls, "__only_on__", None):
+ spec = exclusions.db_spec(*util.to_list(cls.__only_on__))
+ for config_obj in list(all_configs):
+ if not spec(config_obj):
+ all_configs.remove(config_obj)
+
+ if getattr(cls, "__only_on_config__", None):
+ all_configs.intersection_update([cls.__only_on_config__])
+
+ if hasattr(cls, "__requires__"):
+ requirements = config.requirements
+ for config_obj in list(all_configs):
+ for requirement in cls.__requires__:
+ check = getattr(requirements, requirement)
+
+ skip_reasons = check.matching_config_reasons(config_obj)
+ if skip_reasons:
+ all_configs.remove(config_obj)
+ if reasons is not None:
+ reasons.extend(skip_reasons)
+ break
+
+ if hasattr(cls, "__prefer_requires__"):
+ non_preferred = set()
+ requirements = config.requirements
+ for config_obj in list(all_configs):
+ for requirement in cls.__prefer_requires__:
+ check = getattr(requirements, requirement)
+
+ if not check.enabled_for_config(config_obj):
+ non_preferred.add(config_obj)
+ if all_configs.difference(non_preferred):
+ all_configs.difference_update(non_preferred)
+
+ if sparse:
+ # pick only one config from each base dialect
+ # sorted so we get the same backend each time selecting the highest
+ # server version info.
+ per_dialect = {}
+ for cfg in reversed(
+ sorted(
+ all_configs,
+ key=lambda cfg: (
+ cfg.db.name,
+ cfg.db.driver,
+ cfg.db.dialect.server_version_info,
+ ),
+ )
+ ):
+ db = cfg.db.name
+ if db not in per_dialect:
+ per_dialect[db] = cfg
+ return per_dialect.values()
+
+ return all_configs
+
+
+def _do_skips(cls):
+ reasons = []
+ all_configs = _possible_configs_for_cls(cls, reasons)
+
+ if getattr(cls, "__skip_if__", False):
+ for c in getattr(cls, "__skip_if__"):
+ if c():
+ config.skip_test(
+ "'%s' skipped by %s" % (cls.__name__, c.__name__)
+ )
+
+ if not all_configs:
+ msg = "'%s.%s' unsupported on any DB implementation %s%s" % (
+ cls.__module__,
+ cls.__name__,
+ ", ".join(
+ "'%s(%s)+%s'"
+ % (
+ config_obj.db.name,
+ ".".join(
+ str(dig)
+ for dig in exclusions._server_version(config_obj.db)
+ ),
+ config_obj.db.driver,
+ )
+ for config_obj in config.Config.all_configs()
+ ),
+ ", ".join(reasons),
+ )
+ config.skip_test(msg)
+ elif hasattr(cls, "__prefer_backends__"):
+ non_preferred = set()
+ spec = exclusions.db_spec(*util.to_list(cls.__prefer_backends__))
+ for config_obj in all_configs:
+ if not spec(config_obj):
+ non_preferred.add(config_obj)
+ if all_configs.difference(non_preferred):
+ all_configs.difference_update(non_preferred)
+
+ if config._current not in all_configs:
+ _setup_config(all_configs.pop(), cls)
+
+
+def _setup_config(config_obj, ctx):
+ config._current.push(config_obj, testing)
+
+
+class FixtureFunctions(abc.ABC):
+ @abc.abstractmethod
+ def skip_test_exception(self, *arg, **kw):
+ raise NotImplementedError()
+
+ @abc.abstractmethod
+ def combinations(self, *args, **kw):
+ raise NotImplementedError()
+
+ @abc.abstractmethod
+ def param_ident(self, *args, **kw):
+ raise NotImplementedError()
+
+ @abc.abstractmethod
+ def fixture(self, *arg, **kw):
+ raise NotImplementedError()
+
+ def get_current_test_name(self):
+ raise NotImplementedError()
+
+ @abc.abstractmethod
+ def mark_base_test_class(self) -> Any:
+ raise NotImplementedError()
+
+ @abc.abstractproperty
+ def add_to_marker(self):
+ raise NotImplementedError()
+
+
+_fixture_fn_class = None
+
+
+def set_fixture_functions(fixture_fn_class):
+ global _fixture_fn_class
+ _fixture_fn_class = fixture_fn_class