venv

1 files changed, 435 insertions, 0 deletions

diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/testing/exclusions.py b/venv/lib/python3.11/site-packages/sqlalchemy/testing/exclusions.py
new file mode 100644
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+++ b/venv/lib/python3.11/site-packages/sqlalchemy/testing/exclusions.py
@@ -0,0 +1,435 @@
+# testing/exclusions.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
+
+import contextlib
+import operator
+import re
+import sys
+
+from . import config
+from .. import util
+from ..util import decorator
+from ..util.compat import inspect_getfullargspec
+
+
+def skip_if(predicate, reason=None):
+    rule = compound()
+    pred = _as_predicate(predicate, reason)
+    rule.skips.add(pred)
+    return rule
+
+
+def fails_if(predicate, reason=None):
+    rule = compound()
+    pred = _as_predicate(predicate, reason)
+    rule.fails.add(pred)
+    return rule
+
+
+class compound:
+    def __init__(self):
+        self.fails = set()
+        self.skips = set()
+
+    def __add__(self, other):
+        return self.add(other)
+
+    def as_skips(self):
+        rule = compound()
+        rule.skips.update(self.skips)
+        rule.skips.update(self.fails)
+        return rule
+
+    def add(self, *others):
+        copy = compound()
+        copy.fails.update(self.fails)
+        copy.skips.update(self.skips)
+
+        for other in others:
+            copy.fails.update(other.fails)
+            copy.skips.update(other.skips)
+        return copy
+
+    def not_(self):
+        copy = compound()
+        copy.fails.update(NotPredicate(fail) for fail in self.fails)
+        copy.skips.update(NotPredicate(skip) for skip in self.skips)
+        return copy
+
+    @property
+    def enabled(self):
+        return self.enabled_for_config(config._current)
+
+    def enabled_for_config(self, config):
+        for predicate in self.skips.union(self.fails):
+            if predicate(config):
+                return False
+        else:
+            return True
+
+    def matching_config_reasons(self, config):
+        return [
+            predicate._as_string(config)
+            for predicate in self.skips.union(self.fails)
+            if predicate(config)
+        ]
+
+    def _extend(self, other):
+        self.skips.update(other.skips)
+        self.fails.update(other.fails)
+
+    def __call__(self, fn):
+        if hasattr(fn, "_sa_exclusion_extend"):
+            fn._sa_exclusion_extend._extend(self)
+            return fn
+
+        @decorator
+        def decorate(fn, *args, **kw):
+            return self._do(config._current, fn, *args, **kw)
+
+        decorated = decorate(fn)
+        decorated._sa_exclusion_extend = self
+        return decorated
+
+    @contextlib.contextmanager
+    def fail_if(self):
+        all_fails = compound()
+        all_fails.fails.update(self.skips.union(self.fails))
+
+        try:
+            yield
+        except Exception as ex:
+            all_fails._expect_failure(config._current, ex)
+        else:
+            all_fails._expect_success(config._current)
+
+    def _do(self, cfg, fn, *args, **kw):
+        for skip in self.skips:
+            if skip(cfg):
+                msg = "'%s' : %s" % (
+                    config.get_current_test_name(),
+                    skip._as_string(cfg),
+                )
+                config.skip_test(msg)
+
+        try:
+            return_value = fn(*args, **kw)
+        except Exception as ex:
+            self._expect_failure(cfg, ex, name=fn.__name__)
+        else:
+            self._expect_success(cfg, name=fn.__name__)
+            return return_value
+
+    def _expect_failure(self, config, ex, name="block"):
+        for fail in self.fails:
+            if fail(config):
+                print(
+                    "%s failed as expected (%s): %s "
+                    % (name, fail._as_string(config), ex)
+                )
+                break
+        else:
+            raise ex.with_traceback(sys.exc_info()[2])
+
+    def _expect_success(self, config, name="block"):
+        if not self.fails:
+            return
+
+        for fail in self.fails:
+            if fail(config):
+                raise AssertionError(
+                    "Unexpected success for '%s' (%s)"
+                    % (
+                        name,
+                        " and ".join(
+                            fail._as_string(config) for fail in self.fails
+                        ),
+                    )
+                )
+
+
+def only_if(predicate, reason=None):
+    predicate = _as_predicate(predicate)
+    return skip_if(NotPredicate(predicate), reason)
+
+
+def succeeds_if(predicate, reason=None):
+    predicate = _as_predicate(predicate)
+    return fails_if(NotPredicate(predicate), reason)
+
+
+class Predicate:
+    @classmethod
+    def as_predicate(cls, predicate, description=None):
+        if isinstance(predicate, compound):
+            return cls.as_predicate(predicate.enabled_for_config, description)
+        elif isinstance(predicate, Predicate):
+            if description and predicate.description is None:
+                predicate.description = description
+            return predicate
+        elif isinstance(predicate, (list, set)):
+            return OrPredicate(
+                [cls.as_predicate(pred) for pred in predicate], description
+            )
+        elif isinstance(predicate, tuple):
+            return SpecPredicate(*predicate)
+        elif isinstance(predicate, str):
+            tokens = re.match(
+                r"([\+\w]+)\s*(?:(>=|==|!=|<=|<|>)\s*([\d\.]+))?", predicate
+            )
+            if not tokens:
+                raise ValueError(
+                    "Couldn't locate DB name in predicate: %r" % predicate
+                )
+            db = tokens.group(1)
+            op = tokens.group(2)
+            spec = (
+                tuple(int(d) for d in tokens.group(3).split("."))
+                if tokens.group(3)
+                else None
+            )
+
+            return SpecPredicate(db, op, spec, description=description)
+        elif callable(predicate):
+            return LambdaPredicate(predicate, description)
+        else:
+            assert False, "unknown predicate type: %s" % predicate
+
+    def _format_description(self, config, negate=False):
+        bool_ = self(config)
+        if negate:
+            bool_ = not negate
+        return self.description % {
+            "driver": (
+                config.db.url.get_driver_name() if config else "<no driver>"
+            ),
+            "database": (
+                config.db.url.get_backend_name() if config else "<no database>"
+            ),
+            "doesnt_support": "doesn't support" if bool_ else "does support",
+            "does_support": "does support" if bool_ else "doesn't support",
+        }
+
+    def _as_string(self, config=None, negate=False):
+        raise NotImplementedError()
+
+
+class BooleanPredicate(Predicate):
+    def __init__(self, value, description=None):
+        self.value = value
+        self.description = description or "boolean %s" % value
+
+    def __call__(self, config):
+        return self.value
+
+    def _as_string(self, config, negate=False):
+        return self._format_description(config, negate=negate)
+
+
+class SpecPredicate(Predicate):
+    def __init__(self, db, op=None, spec=None, description=None):
+        self.db = db
+        self.op = op
+        self.spec = spec
+        self.description = description
+
+    _ops = {
+        "<": operator.lt,
+        ">": operator.gt,
+        "==": operator.eq,
+        "!=": operator.ne,
+        "<=": operator.le,
+        ">=": operator.ge,
+        "in": operator.contains,
+        "between": lambda val, pair: val >= pair[0] and val <= pair[1],
+    }
+
+    def __call__(self, config):
+        if config is None:
+            return False
+
+        engine = config.db
+
+        if "+" in self.db:
+            dialect, driver = self.db.split("+")
+        else:
+            dialect, driver = self.db, None
+
+        if dialect and engine.name != dialect:
+            return False
+        if driver is not None and engine.driver != driver:
+            return False
+
+        if self.op is not None:
+            assert driver is None, "DBAPI version specs not supported yet"
+
+            version = _server_version(engine)
+            oper = (
+                hasattr(self.op, "__call__") and self.op or self._ops[self.op]
+            )
+            return oper(version, self.spec)
+        else:
+            return True
+
+    def _as_string(self, config, negate=False):
+        if self.description is not None:
+            return self._format_description(config)
+        elif self.op is None:
+            if negate:
+                return "not %s" % self.db
+            else:
+                return "%s" % self.db
+        else:
+            if negate:
+                return "not %s %s %s" % (self.db, self.op, self.spec)
+            else:
+                return "%s %s %s" % (self.db, self.op, self.spec)
+
+
+class LambdaPredicate(Predicate):
+    def __init__(self, lambda_, description=None, args=None, kw=None):
+        spec = inspect_getfullargspec(lambda_)
+        if not spec[0]:
+            self.lambda_ = lambda db: lambda_()
+        else:
+            self.lambda_ = lambda_
+        self.args = args or ()
+        self.kw = kw or {}
+        if description:
+            self.description = description
+        elif lambda_.__doc__:
+            self.description = lambda_.__doc__
+        else:
+            self.description = "custom function"
+
+    def __call__(self, config):
+        return self.lambda_(config)
+
+    def _as_string(self, config, negate=False):
+        return self._format_description(config)
+
+
+class NotPredicate(Predicate):
+    def __init__(self, predicate, description=None):
+        self.predicate = predicate
+        self.description = description
+
+    def __call__(self, config):
+        return not self.predicate(config)
+
+    def _as_string(self, config, negate=False):
+        if self.description:
+            return self._format_description(config, not negate)
+        else:
+            return self.predicate._as_string(config, not negate)
+
+
+class OrPredicate(Predicate):
+    def __init__(self, predicates, description=None):
+        self.predicates = predicates
+        self.description = description
+
+    def __call__(self, config):
+        for pred in self.predicates:
+            if pred(config):
+                return True
+        return False
+
+    def _eval_str(self, config, negate=False):
+        if negate:
+            conjunction = " and "
+        else:
+            conjunction = " or "
+        return conjunction.join(
+            p._as_string(config, negate=negate) for p in self.predicates
+        )
+
+    def _negation_str(self, config):
+        if self.description is not None:
+            return "Not " + self._format_description(config)
+        else:
+            return self._eval_str(config, negate=True)
+
+    def _as_string(self, config, negate=False):
+        if negate:
+            return self._negation_str(config)
+        else:
+            if self.description is not None:
+                return self._format_description(config)
+            else:
+                return self._eval_str(config)
+
+
+_as_predicate = Predicate.as_predicate
+
+
+def _is_excluded(db, op, spec):
+    return SpecPredicate(db, op, spec)(config._current)
+
+
+def _server_version(engine):
+    """Return a server_version_info tuple."""
+
+    # force metadata to be retrieved
+    conn = engine.connect()
+    version = getattr(engine.dialect, "server_version_info", None)
+    if version is None:
+        version = ()
+    conn.close()
+    return version
+
+
+def db_spec(*dbs):
+    return OrPredicate([Predicate.as_predicate(db) for db in dbs])
+
+
+def open():  # noqa
+    return skip_if(BooleanPredicate(False, "mark as execute"))
+
+
+def closed():
+    return skip_if(BooleanPredicate(True, "marked as skip"))
+
+
+def fails(reason=None):
+    return fails_if(BooleanPredicate(True, reason or "expected to fail"))
+
+
+def future():
+    return fails_if(BooleanPredicate(True, "Future feature"))
+
+
+def fails_on(db, reason=None):
+    return fails_if(db, reason)
+
+
+def fails_on_everything_except(*dbs):
+    return succeeds_if(OrPredicate([Predicate.as_predicate(db) for db in dbs]))
+
+
+def skip(db, reason=None):
+    return skip_if(db, reason)
+
+
+def only_on(dbs, reason=None):
+    return only_if(
+        OrPredicate(
+            [Predicate.as_predicate(db, reason) for db in util.to_list(dbs)]
+        )
+    )
+
+
+def exclude(db, op, spec, reason=None):
+    return skip_if(SpecPredicate(db, op, spec), reason)
+
+
+def against(config, *queries):
+    assert queries, "no queries sent!"
+    return OrPredicate([Predicate.as_predicate(query) for query in queries])(
+        config
+    )