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?? ..
?? __init__.py(2.8 KB)
?? __pycache__
?? assertions.py(21.74 KB)
?? assertsql.py(13.27 KB)
?? config.py(5.53 KB)
?? engines.py(10.28 KB)
?? entities.py(3.13 KB)
?? exclusions.py(12.91 KB)
?? fixtures.py(14.57 KB)
?? mock.py(893 B)
?? pickleable.py(2.63 KB)
?? plugin
?? profiling.py(8.54 KB)
?? provision.py(5.44 KB)
?? replay_fixture.py(5.74 KB)
?? requirements.py(32.29 KB)
?? schema.py(4.65 KB)
?? suite
?? util.py(9.91 KB)
?? warnings.py(1.61 KB)

Editing: schema.py

# testing/schema.py
# Copyright (C) 2005-2021 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php

import sys

from . import config
from . import exclusions
from .. import event
from .. import schema
from ..util import OrderedDict

__all__ = ["Table", "Column"]

table_options = {}

def Table(*args, **kw):
    """A schema.Table wrapper/hook for dialect-specific tweaks."""

test_opts = {k: kw.pop(k) for k in list(kw) if k.startswith("test_")}

kw.update(table_options)

if exclusions.against(config._current, "mysql"):
        if (
            "mysql_engine" not in kw
            and "mysql_type" not in kw
            and "autoload_with" not in kw
        ):
            if "test_needs_fk" in test_opts or "test_needs_acid" in test_opts:
                kw["mysql_engine"] = "InnoDB"
            else:
                kw["mysql_engine"] = "MyISAM"

# Apply some default cascading rules for self-referential foreign keys.
    # MySQL InnoDB has some issues around selecting self-refs too.
    if exclusions.against(config._current, "firebird"):
        table_name = args[0]
        unpack = config.db.dialect.identifier_preparer.unformat_identifiers

# Only going after ForeignKeys in Columns.  May need to
        # expand to ForeignKeyConstraint too.
        fks = [
            fk
            for col in args
            if isinstance(col, schema.Column)
            for fk in col.foreign_keys
        ]

for fk in fks:
            # root around in raw spec
            ref = fk._colspec
            if isinstance(ref, schema.Column):
                name = ref.table.name
            else:
                # take just the table name: on FB there cannot be
                # a schema, so the first element is always the
                # table name, possibly followed by the field name
                name = unpack(ref)[0]
            if name == table_name:
                if fk.ondelete is None:
                    fk.ondelete = "CASCADE"
                if fk.onupdate is None:
                    fk.onupdate = "CASCADE"

return schema.Table(*args, **kw)

def Column(*args, **kw):
    """A schema.Column wrapper/hook for dialect-specific tweaks."""

test_opts = {k: kw.pop(k) for k in list(kw) if k.startswith("test_")}

if not config.requirements.foreign_key_ddl.enabled_for_config(config):
        args = [arg for arg in args if not isinstance(arg, schema.ForeignKey)]

col = schema.Column(*args, **kw)
    if test_opts.get("test_needs_autoincrement", False) and kw.get(
        "primary_key", False
    ):

if col.default is None and col.server_default is None:
            col.autoincrement = True

# allow any test suite to pick up on this
        col.info["test_needs_autoincrement"] = True

# hardcoded rule for firebird, oracle; this should
        # be moved out
        if exclusions.against(config._current, "firebird", "oracle"):

def add_seq(c, tbl):
                c._init_items(
                    schema.Sequence(
                        _truncate_name(
                            config.db.dialect, tbl.name + "_" + c.name + "_seq"
                        ),
                        optional=True,
                    )
                )

event.listen(col, "after_parent_attach", add_seq, propagate=True)
    return col

def _truncate_name(dialect, name):
    if len(name) > dialect.max_identifier_length:
        return (
            name[0 : max(dialect.max_identifier_length - 6, 0)]
            + "_"
            + hex(hash(name) % 64)[2:]
        )
    else:
        return name

def pep435_enum(name):
    # Implements PEP 435 in the minimal fashion needed by SQLAlchemy
    __members__ = OrderedDict()

def __init__(self, name, value, alias=None):
        self.name = name
        self.value = value
        self.__members__[name] = self
        value_to_member[value] = self
        setattr(self.__class__, name, self)
        if alias:
            self.__members__[alias] = self
            setattr(self.__class__, alias, self)

value_to_member = {}

@classmethod
    def get(cls, value):
        return value_to_member[value]

someenum = type(
        name,
        (object,),
        {"__members__": __members__, "__init__": __init__, "get": get},
    )

# getframe() trick for pickling I don't understand courtesy
    # Python namedtuple()
    try:
        module = sys._getframe(1).f_globals.get("__name__", "__main__")
    except (AttributeError, ValueError):
        pass
    if module is not None:
        someenum.__module__ = module

return someenum

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