mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-14 04:37:15 -04:00
Mike Bayer
93b7767d00
The :meth:`.Connection.connect` method is deprecated as is the concept of "connection branching", which copies a :class:`.Connection` into a new one that has a no-op ".close()" method. This pattern is oriented around the "connectionless execution" concept which is also being removed in 2.0. As part of this change we begin to move the internals away from "connectionless execution" overall. Remove the "connectionless execution" concept from the reflection internals and replace with explicit patterns at the Inspector level. Fixes: #5131 Change-Id: Id23d28a9889212ac5ae7329b85136157815d3e6f
2800 lines
87 KiB
Python
2800 lines
87 KiB
Python
# coding: utf-8
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from contextlib import contextmanager
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import re
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import weakref
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import sqlalchemy as tsa
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from sqlalchemy import bindparam
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from sqlalchemy import create_engine
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from sqlalchemy import create_mock_engine
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from sqlalchemy import event
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from sqlalchemy import func
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from sqlalchemy import inspect
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from sqlalchemy import INT
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from sqlalchemy import Integer
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from sqlalchemy import LargeBinary
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from sqlalchemy import MetaData
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from sqlalchemy import select
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from sqlalchemy import Sequence
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from sqlalchemy import String
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from sqlalchemy import testing
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from sqlalchemy import TypeDecorator
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from sqlalchemy import util
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from sqlalchemy import VARCHAR
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from sqlalchemy.engine import default
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from sqlalchemy.engine.base import Engine
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from sqlalchemy.sql import column
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from sqlalchemy.sql import literal
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from sqlalchemy.testing import assert_raises
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from sqlalchemy.testing import assert_raises_message
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from sqlalchemy.testing import config
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from sqlalchemy.testing import engines
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from sqlalchemy.testing import eq_
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from sqlalchemy.testing import expect_warnings
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from sqlalchemy.testing import fixtures
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from sqlalchemy.testing import is_
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from sqlalchemy.testing import is_false
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from sqlalchemy.testing import is_not_
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from sqlalchemy.testing import is_true
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from sqlalchemy.testing import mock
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from sqlalchemy.testing.assertsql import CompiledSQL
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from sqlalchemy.testing.engines import testing_engine
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from sqlalchemy.testing.mock import call
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from sqlalchemy.testing.mock import Mock
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from sqlalchemy.testing.mock import patch
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from sqlalchemy.testing.schema import Column
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from sqlalchemy.testing.schema import Table
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from sqlalchemy.testing.util import gc_collect
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from sqlalchemy.testing.util import picklers
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from sqlalchemy.util import nested
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users, metadata, users_autoinc = None, None, None
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class SomeException(Exception):
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pass
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class ExecuteTest(fixtures.TestBase):
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__backend__ = True
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@classmethod
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def setup_class(cls):
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global users, users_autoinc, metadata
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metadata = MetaData(testing.db)
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users = Table(
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"users",
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metadata,
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Column("user_id", INT, primary_key=True, autoincrement=False),
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Column("user_name", VARCHAR(20)),
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)
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users_autoinc = Table(
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"users_autoinc",
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metadata,
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Column(
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"user_id", INT, primary_key=True, test_needs_autoincrement=True
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),
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Column("user_name", VARCHAR(20)),
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)
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metadata.create_all()
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@engines.close_first
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def teardown(self):
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testing.db.execute(users.delete())
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@classmethod
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def teardown_class(cls):
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metadata.drop_all()
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@testing.fails_on(
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"postgresql+pg8000",
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"pg8000 still doesn't allow single paren without params",
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)
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def test_no_params_option(self):
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stmt = (
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"SELECT '%'"
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+ testing.db.dialect.statement_compiler(
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testing.db.dialect, None
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).default_from()
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)
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conn = testing.db.connect()
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result = conn.execution_options(no_parameters=True).scalar(stmt)
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eq_(result, "%")
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@testing.fails_on_everything_except(
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"firebird", "sqlite", "+pyodbc", "+mxodbc", "mysql+oursql"
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)
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def test_raw_qmark(self):
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def go(conn):
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conn.execute(
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"insert into users (user_id, user_name) " "values (?, ?)",
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(1, "jack"),
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)
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conn.execute(
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"insert into users (user_id, user_name) " "values (?, ?)",
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[2, "fred"],
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)
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conn.execute(
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"insert into users (user_id, user_name) " "values (?, ?)",
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[3, "ed"],
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[4, "horse"],
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)
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conn.execute(
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"insert into users (user_id, user_name) " "values (?, ?)",
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(5, "barney"),
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(6, "donkey"),
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)
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conn.execute(
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"insert into users (user_id, user_name) " "values (?, ?)",
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7,
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"sally",
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)
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res = conn.execute("select * from users order by user_id")
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assert res.fetchall() == [
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(1, "jack"),
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(2, "fred"),
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(3, "ed"),
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(4, "horse"),
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(5, "barney"),
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(6, "donkey"),
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(7, "sally"),
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]
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for multiparam, param in [
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(("jack", "fred"), {}),
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((["jack", "fred"],), {}),
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]:
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res = conn.execute(
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"select * from users where user_name=? or "
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"user_name=? order by user_id",
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*multiparam,
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**param
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)
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assert res.fetchall() == [(1, "jack"), (2, "fred")]
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res = conn.execute("select * from users where user_name=?", "jack")
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assert res.fetchall() == [(1, "jack")]
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conn.execute("delete from users")
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go(testing.db)
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conn = testing.db.connect()
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try:
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go(conn)
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finally:
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conn.close()
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# some psycopg2 versions bomb this.
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@testing.fails_on_everything_except(
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"mysql+mysqldb",
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"mysql+pymysql",
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"mysql+cymysql",
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"mysql+mysqlconnector",
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"postgresql",
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)
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def test_raw_sprintf(self):
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def go(conn):
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conn.execute(
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"insert into users (user_id, user_name) " "values (%s, %s)",
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[1, "jack"],
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)
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conn.execute(
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"insert into users (user_id, user_name) " "values (%s, %s)",
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[2, "ed"],
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[3, "horse"],
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)
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conn.execute(
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"insert into users (user_id, user_name) " "values (%s, %s)",
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4,
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"sally",
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)
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conn.execute("insert into users (user_id) values (%s)", 5)
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res = conn.execute("select * from users order by user_id")
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assert res.fetchall() == [
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(1, "jack"),
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(2, "ed"),
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(3, "horse"),
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(4, "sally"),
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(5, None),
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]
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for multiparam, param in [
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(("jack", "ed"), {}),
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((["jack", "ed"],), {}),
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]:
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res = conn.execute(
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"select * from users where user_name=%s or "
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"user_name=%s order by user_id",
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*multiparam,
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**param
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)
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assert res.fetchall() == [(1, "jack"), (2, "ed")]
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res = conn.execute(
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"select * from users where user_name=%s", "jack"
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)
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assert res.fetchall() == [(1, "jack")]
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conn.execute("delete from users")
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go(testing.db)
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conn = testing.db.connect()
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try:
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go(conn)
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finally:
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conn.close()
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# pyformat is supported for mysql, but skipping because a few driver
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# versions have a bug that bombs out on this test. (1.2.2b3,
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# 1.2.2c1, 1.2.2)
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@testing.skip_if(lambda: testing.against("mysql+mysqldb"), "db-api flaky")
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@testing.fails_on_everything_except(
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"postgresql+psycopg2",
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"postgresql+psycopg2cffi",
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"postgresql+pypostgresql",
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"postgresql+pygresql",
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"mysql+mysqlconnector",
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"mysql+pymysql",
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"mysql+cymysql",
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"mssql+pymssql",
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)
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def test_raw_python(self):
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def go(conn):
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conn.execute(
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"insert into users (user_id, user_name) "
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"values (%(id)s, %(name)s)",
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{"id": 1, "name": "jack"},
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)
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conn.execute(
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"insert into users (user_id, user_name) "
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"values (%(id)s, %(name)s)",
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{"id": 2, "name": "ed"},
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{"id": 3, "name": "horse"},
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)
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conn.execute(
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"insert into users (user_id, user_name) "
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"values (%(id)s, %(name)s)",
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id=4,
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name="sally",
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)
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res = conn.execute("select * from users order by user_id")
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assert res.fetchall() == [
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(1, "jack"),
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(2, "ed"),
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(3, "horse"),
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(4, "sally"),
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]
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conn.execute("delete from users")
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go(testing.db)
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conn = testing.db.connect()
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try:
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go(conn)
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finally:
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conn.close()
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@testing.fails_on_everything_except("sqlite", "oracle+cx_oracle")
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def test_raw_named(self):
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def go(conn):
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conn.execute(
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"insert into users (user_id, user_name) "
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"values (:id, :name)",
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{"id": 1, "name": "jack"},
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)
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conn.execute(
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"insert into users (user_id, user_name) "
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"values (:id, :name)",
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{"id": 2, "name": "ed"},
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{"id": 3, "name": "horse"},
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)
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conn.execute(
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"insert into users (user_id, user_name) "
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"values (:id, :name)",
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id=4,
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name="sally",
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)
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res = conn.execute("select * from users order by user_id")
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assert res.fetchall() == [
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(1, "jack"),
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(2, "ed"),
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(3, "horse"),
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(4, "sally"),
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]
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conn.execute("delete from users")
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go(testing.db)
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conn = testing.db.connect()
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try:
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go(conn)
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finally:
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conn.close()
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@testing.engines.close_open_connections
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def test_exception_wrapping_dbapi(self):
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conn = testing.db.connect()
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for _c in testing.db, conn:
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assert_raises_message(
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tsa.exc.DBAPIError,
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r"not_a_valid_statement",
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_c.execute,
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"not_a_valid_statement",
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)
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@testing.requires.sqlite
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def test_exception_wrapping_non_dbapi_error(self):
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e = create_engine("sqlite://")
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e.dialect.is_disconnect = is_disconnect = Mock()
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with e.connect() as c:
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c.connection.cursor = Mock(
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return_value=Mock(
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execute=Mock(
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side_effect=TypeError("I'm not a DBAPI error")
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)
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)
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)
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assert_raises_message(
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TypeError, "I'm not a DBAPI error", c.execute, "select "
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)
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eq_(is_disconnect.call_count, 0)
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def test_exception_wrapping_non_standard_dbapi_error(self):
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class DBAPIError(Exception):
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pass
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class OperationalError(DBAPIError):
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pass
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class NonStandardException(OperationalError):
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pass
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with nested(
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patch.object(testing.db.dialect, "dbapi", Mock(Error=DBAPIError)),
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patch.object(
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testing.db.dialect, "is_disconnect", lambda *arg: False
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),
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patch.object(
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testing.db.dialect,
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"do_execute",
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Mock(side_effect=NonStandardException),
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),
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):
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with testing.db.connect() as conn:
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assert_raises(
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tsa.exc.OperationalError, conn.execute, "select 1"
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)
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def test_exception_wrapping_non_dbapi_statement(self):
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class MyType(TypeDecorator):
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impl = Integer
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def process_bind_param(self, value, dialect):
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raise SomeException("nope")
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def _go(conn):
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assert_raises_message(
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tsa.exc.StatementError,
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r"\(.*.SomeException\) " r"nope\n\[SQL\: u?SELECT 1 ",
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conn.execute,
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select([1]).where(column("foo") == literal("bar", MyType())),
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)
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_go(testing.db)
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conn = testing.db.connect()
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try:
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_go(conn)
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finally:
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conn.close()
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def test_not_an_executable(self):
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for obj in (
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Table("foo", MetaData(), Column("x", Integer)),
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Column("x", Integer),
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tsa.and_(True),
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tsa.and_(True).compile(),
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column("foo"),
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column("foo").compile(),
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MetaData(),
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Integer(),
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tsa.Index(name="foo"),
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tsa.UniqueConstraint("x"),
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):
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with testing.db.connect() as conn:
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assert_raises_message(
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tsa.exc.ObjectNotExecutableError,
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"Not an executable object",
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conn.execute,
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obj,
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)
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def test_stmt_exception_bytestring_raised(self):
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name = util.u("méil")
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with testing.db.connect() as conn:
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assert_raises_message(
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tsa.exc.StatementError,
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util.u(
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"A value is required for bind parameter 'uname'\n"
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r".*SELECT users.user_name AS .m\xe9il."
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)
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if util.py2k
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else util.u(
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"A value is required for bind parameter 'uname'\n"
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".*SELECT users.user_name AS .méil."
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),
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conn.execute,
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select([users.c.user_name.label(name)]).where(
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users.c.user_name == bindparam("uname")
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),
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{"uname_incorrect": "foo"},
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)
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def test_stmt_exception_bytestring_utf8(self):
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# uncommon case for Py3K, bytestring object passed
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# as the error message
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message = util.u("some message méil").encode("utf-8")
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err = tsa.exc.SQLAlchemyError(message)
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if util.py2k:
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# string passes it through
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eq_(str(err), message)
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# unicode accessor decodes to utf-8
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eq_(unicode(err), util.u("some message méil")) # noqa
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else:
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eq_(str(err), util.u("some message méil"))
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def test_stmt_exception_bytestring_latin1(self):
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# uncommon case for Py3K, bytestring object passed
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# as the error message
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message = util.u("some message méil").encode("latin-1")
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err = tsa.exc.SQLAlchemyError(message)
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if util.py2k:
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# string passes it through
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eq_(str(err), message)
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# unicode accessor decodes to utf-8
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eq_(unicode(err), util.u("some message m\\xe9il")) # noqa
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else:
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eq_(str(err), util.u("some message m\\xe9il"))
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def test_stmt_exception_unicode_hook_unicode(self):
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# uncommon case for Py2K, Unicode object passed
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# as the error message
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message = util.u("some message méil")
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err = tsa.exc.SQLAlchemyError(message)
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if util.py2k:
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eq_(unicode(err), util.u("some message méil")) # noqa
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else:
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eq_(str(err), util.u("some message méil"))
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def test_stmt_exception_str_multi_args(self):
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err = tsa.exc.SQLAlchemyError("some message", 206)
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eq_(str(err), "('some message', 206)")
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def test_stmt_exception_str_multi_args_bytestring(self):
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message = util.u("some message méil").encode("utf-8")
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err = tsa.exc.SQLAlchemyError(message, 206)
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eq_(str(err), str((message, 206)))
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def test_stmt_exception_str_multi_args_unicode(self):
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message = util.u("some message méil")
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err = tsa.exc.SQLAlchemyError(message, 206)
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eq_(str(err), str((message, 206)))
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def test_stmt_exception_pickleable_no_dbapi(self):
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self._test_stmt_exception_pickleable(Exception("hello world"))
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|
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@testing.crashes(
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"postgresql+psycopg2",
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"Older versions don't support cursor pickling, newer ones do",
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)
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@testing.fails_on(
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"mysql+oursql",
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"Exception doesn't come back exactly the same from pickle",
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)
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@testing.fails_on(
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"mysql+mysqlconnector",
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"Exception doesn't come back exactly the same from pickle",
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)
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@testing.fails_on(
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"oracle+cx_oracle",
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"cx_oracle exception seems to be having " "some issue with pickling",
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)
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def test_stmt_exception_pickleable_plus_dbapi(self):
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raw = testing.db.raw_connection()
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the_orig = None
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try:
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try:
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cursor = raw.cursor()
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cursor.execute("SELECTINCORRECT")
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except testing.db.dialect.dbapi.DatabaseError as orig:
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# py3k has "orig" in local scope...
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the_orig = orig
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finally:
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raw.close()
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self._test_stmt_exception_pickleable(the_orig)
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def _test_stmt_exception_pickleable(self, orig):
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for sa_exc in (
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tsa.exc.StatementError(
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"some error",
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"select * from table",
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|
{"foo": "bar"},
|
|
orig,
|
|
False,
|
|
),
|
|
tsa.exc.InterfaceError(
|
|
"select * from table", {"foo": "bar"}, orig, True
|
|
),
|
|
tsa.exc.NoReferencedTableError("message", "tname"),
|
|
tsa.exc.NoReferencedColumnError("message", "tname", "cname"),
|
|
tsa.exc.CircularDependencyError(
|
|
"some message", [1, 2, 3], [(1, 2), (3, 4)]
|
|
),
|
|
):
|
|
for loads, dumps in picklers():
|
|
repickled = loads(dumps(sa_exc))
|
|
eq_(repickled.args[0], sa_exc.args[0])
|
|
if isinstance(sa_exc, tsa.exc.StatementError):
|
|
eq_(repickled.params, {"foo": "bar"})
|
|
eq_(repickled.statement, sa_exc.statement)
|
|
if hasattr(sa_exc, "connection_invalidated"):
|
|
eq_(
|
|
repickled.connection_invalidated,
|
|
sa_exc.connection_invalidated,
|
|
)
|
|
eq_(repickled.orig.args[0], orig.args[0])
|
|
|
|
def test_dont_wrap_mixin(self):
|
|
class MyException(Exception, tsa.exc.DontWrapMixin):
|
|
pass
|
|
|
|
class MyType(TypeDecorator):
|
|
impl = Integer
|
|
|
|
def process_bind_param(self, value, dialect):
|
|
raise MyException("nope")
|
|
|
|
def _go(conn):
|
|
assert_raises_message(
|
|
MyException,
|
|
"nope",
|
|
conn.execute,
|
|
select([1]).where(column("foo") == literal("bar", MyType())),
|
|
)
|
|
|
|
_go(testing.db)
|
|
conn = testing.db.connect()
|
|
try:
|
|
_go(conn)
|
|
finally:
|
|
conn.close()
|
|
|
|
def test_empty_insert(self):
|
|
"""test that execute() interprets [] as a list with no params"""
|
|
|
|
testing.db.execute(
|
|
users_autoinc.insert().values(user_name=bindparam("name", None)),
|
|
[],
|
|
)
|
|
eq_(testing.db.execute(users_autoinc.select()).fetchall(), [(1, None)])
|
|
|
|
@testing.only_on("sqlite")
|
|
def test_execute_compiled_favors_compiled_paramstyle(self):
|
|
with patch.object(testing.db.dialect, "do_execute") as do_exec:
|
|
stmt = users.update().values(user_id=1, user_name="foo")
|
|
|
|
d1 = default.DefaultDialect(paramstyle="format")
|
|
d2 = default.DefaultDialect(paramstyle="pyformat")
|
|
|
|
testing.db.execute(stmt.compile(dialect=d1))
|
|
testing.db.execute(stmt.compile(dialect=d2))
|
|
|
|
eq_(
|
|
do_exec.mock_calls,
|
|
[
|
|
call(
|
|
mock.ANY,
|
|
"UPDATE users SET user_id=%s, user_name=%s",
|
|
(1, "foo"),
|
|
mock.ANY,
|
|
),
|
|
call(
|
|
mock.ANY,
|
|
"UPDATE users SET user_id=%(user_id)s, "
|
|
"user_name=%(user_name)s",
|
|
{"user_name": "foo", "user_id": 1},
|
|
mock.ANY,
|
|
),
|
|
],
|
|
)
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_engine_level_options(self):
|
|
eng = engines.testing_engine(
|
|
options={"execution_options": {"foo": "bar"}}
|
|
)
|
|
with eng.connect() as conn:
|
|
eq_(conn._execution_options["foo"], "bar")
|
|
eq_(
|
|
conn.execution_options(bat="hoho")._execution_options["foo"],
|
|
"bar",
|
|
)
|
|
eq_(
|
|
conn.execution_options(bat="hoho")._execution_options["bat"],
|
|
"hoho",
|
|
)
|
|
eq_(
|
|
conn.execution_options(foo="hoho")._execution_options["foo"],
|
|
"hoho",
|
|
)
|
|
eng.update_execution_options(foo="hoho")
|
|
conn = eng.connect()
|
|
eq_(conn._execution_options["foo"], "hoho")
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_generative_engine_execution_options(self):
|
|
eng = engines.testing_engine(
|
|
options={"execution_options": {"base": "x1"}}
|
|
)
|
|
|
|
is_(eng.engine, eng)
|
|
|
|
eng1 = eng.execution_options(foo="b1")
|
|
is_(eng1.engine, eng1)
|
|
eng2 = eng.execution_options(foo="b2")
|
|
eng1a = eng1.execution_options(bar="a1")
|
|
eng2a = eng2.execution_options(foo="b3", bar="a2")
|
|
is_(eng2a.engine, eng2a)
|
|
|
|
eq_(eng._execution_options, {"base": "x1"})
|
|
eq_(eng1._execution_options, {"base": "x1", "foo": "b1"})
|
|
eq_(eng2._execution_options, {"base": "x1", "foo": "b2"})
|
|
eq_(eng1a._execution_options, {"base": "x1", "foo": "b1", "bar": "a1"})
|
|
eq_(eng2a._execution_options, {"base": "x1", "foo": "b3", "bar": "a2"})
|
|
is_(eng1a.pool, eng.pool)
|
|
|
|
# test pool is shared
|
|
eng2.dispose()
|
|
is_(eng1a.pool, eng2.pool)
|
|
is_(eng.pool, eng2.pool)
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_autocommit_option_no_issue_first_connect(self):
|
|
eng = create_engine(testing.db.url)
|
|
eng.update_execution_options(autocommit=True)
|
|
conn = eng.connect()
|
|
eq_(conn._execution_options, {"autocommit": True})
|
|
conn.close()
|
|
|
|
def test_initialize_rollback(self):
|
|
"""test a rollback happens during first connect"""
|
|
eng = create_engine(testing.db.url)
|
|
with patch.object(eng.dialect, "do_rollback") as do_rollback:
|
|
assert do_rollback.call_count == 0
|
|
connection = eng.connect()
|
|
assert do_rollback.call_count == 1
|
|
connection.close()
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_dialect_init_uses_options(self):
|
|
eng = create_engine(testing.db.url)
|
|
|
|
def my_init(connection):
|
|
connection.execution_options(foo="bar").execute(select([1]))
|
|
|
|
with patch.object(eng.dialect, "initialize", my_init):
|
|
conn = eng.connect()
|
|
eq_(conn._execution_options, {})
|
|
conn.close()
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_generative_engine_event_dispatch_hasevents(self):
|
|
def l1(*arg, **kw):
|
|
pass
|
|
|
|
eng = create_engine(testing.db.url)
|
|
assert not eng._has_events
|
|
event.listen(eng, "before_execute", l1)
|
|
eng2 = eng.execution_options(foo="bar")
|
|
assert eng2._has_events
|
|
|
|
def test_unicode_test_fails_warning(self):
|
|
class MockCursor(engines.DBAPIProxyCursor):
|
|
def execute(self, stmt, params=None, **kw):
|
|
if "test unicode returns" in stmt:
|
|
raise self.engine.dialect.dbapi.DatabaseError("boom")
|
|
else:
|
|
return super(MockCursor, self).execute(stmt, params, **kw)
|
|
|
|
eng = engines.proxying_engine(cursor_cls=MockCursor)
|
|
assert_raises_message(
|
|
tsa.exc.SAWarning,
|
|
"Exception attempting to detect unicode returns",
|
|
eng.connect,
|
|
)
|
|
assert eng.dialect.returns_unicode_strings in (True, False)
|
|
eng.dispose()
|
|
|
|
def test_works_after_dispose(self):
|
|
eng = create_engine(testing.db.url)
|
|
for i in range(3):
|
|
eq_(eng.scalar(select([1])), 1)
|
|
eng.dispose()
|
|
|
|
def test_works_after_dispose_testing_engine(self):
|
|
eng = engines.testing_engine()
|
|
for i in range(3):
|
|
eq_(eng.scalar(select([1])), 1)
|
|
eng.dispose()
|
|
|
|
|
|
class ConvenienceExecuteTest(fixtures.TablesTest):
|
|
__backend__ = True
|
|
|
|
@classmethod
|
|
def define_tables(cls, metadata):
|
|
cls.table = Table(
|
|
"exec_test",
|
|
metadata,
|
|
Column("a", Integer),
|
|
Column("b", Integer),
|
|
test_needs_acid=True,
|
|
)
|
|
|
|
def _trans_fn(self, is_transaction=False):
|
|
def go(conn, x, value=None):
|
|
if is_transaction:
|
|
conn = conn.connection
|
|
conn.execute(self.table.insert().values(a=x, b=value))
|
|
|
|
return go
|
|
|
|
def _trans_rollback_fn(self, is_transaction=False):
|
|
def go(conn, x, value=None):
|
|
if is_transaction:
|
|
conn = conn.connection
|
|
conn.execute(self.table.insert().values(a=x, b=value))
|
|
raise SomeException("breakage")
|
|
|
|
return go
|
|
|
|
def _assert_no_data(self):
|
|
eq_(
|
|
testing.db.scalar(
|
|
select([func.count("*")]).select_from(self.table)
|
|
),
|
|
0,
|
|
)
|
|
|
|
def _assert_fn(self, x, value=None):
|
|
eq_(testing.db.execute(self.table.select()).fetchall(), [(x, value)])
|
|
|
|
def test_transaction_engine_ctx_commit(self):
|
|
fn = self._trans_fn()
|
|
ctx = testing.db.begin()
|
|
testing.run_as_contextmanager(ctx, fn, 5, value=8)
|
|
self._assert_fn(5, value=8)
|
|
|
|
def test_transaction_engine_ctx_begin_fails(self):
|
|
engine = engines.testing_engine()
|
|
|
|
mock_connection = Mock(
|
|
return_value=Mock(begin=Mock(side_effect=Exception("boom")))
|
|
)
|
|
engine._connection_cls = mock_connection
|
|
assert_raises(Exception, engine.begin)
|
|
|
|
eq_(mock_connection.return_value.close.mock_calls, [call()])
|
|
|
|
def test_transaction_engine_ctx_rollback(self):
|
|
fn = self._trans_rollback_fn()
|
|
ctx = testing.db.begin()
|
|
assert_raises_message(
|
|
Exception,
|
|
"breakage",
|
|
testing.run_as_contextmanager,
|
|
ctx,
|
|
fn,
|
|
5,
|
|
value=8,
|
|
)
|
|
self._assert_no_data()
|
|
|
|
def test_transaction_connection_ctx_commit(self):
|
|
fn = self._trans_fn(True)
|
|
with testing.db.connect() as conn:
|
|
ctx = conn.begin()
|
|
testing.run_as_contextmanager(ctx, fn, 5, value=8)
|
|
self._assert_fn(5, value=8)
|
|
|
|
def test_transaction_connection_ctx_rollback(self):
|
|
fn = self._trans_rollback_fn(True)
|
|
with testing.db.connect() as conn:
|
|
ctx = conn.begin()
|
|
assert_raises_message(
|
|
Exception,
|
|
"breakage",
|
|
testing.run_as_contextmanager,
|
|
ctx,
|
|
fn,
|
|
5,
|
|
value=8,
|
|
)
|
|
self._assert_no_data()
|
|
|
|
def test_connection_as_ctx(self):
|
|
fn = self._trans_fn()
|
|
ctx = testing.db.connect()
|
|
testing.run_as_contextmanager(ctx, fn, 5, value=8)
|
|
# autocommit is on
|
|
self._assert_fn(5, value=8)
|
|
|
|
@testing.fails_on("mysql+oursql", "oursql bug ? getting wrong rowcount")
|
|
def test_connect_as_ctx_noautocommit(self):
|
|
fn = self._trans_fn()
|
|
self._assert_no_data()
|
|
|
|
with testing.db.connect() as conn:
|
|
ctx = conn.execution_options(autocommit=False)
|
|
testing.run_as_contextmanager(ctx, fn, 5, value=8)
|
|
# autocommit is off
|
|
self._assert_no_data()
|
|
|
|
|
|
class CompiledCacheTest(fixtures.TestBase):
|
|
__backend__ = True
|
|
|
|
@classmethod
|
|
def setup_class(cls):
|
|
global users, metadata
|
|
metadata = MetaData(testing.db)
|
|
users = Table(
|
|
"users",
|
|
metadata,
|
|
Column(
|
|
"user_id", INT, primary_key=True, test_needs_autoincrement=True
|
|
),
|
|
Column("user_name", VARCHAR(20)),
|
|
Column("extra_data", VARCHAR(20)),
|
|
)
|
|
metadata.create_all()
|
|
|
|
@engines.close_first
|
|
def teardown(self):
|
|
testing.db.execute(users.delete())
|
|
|
|
@classmethod
|
|
def teardown_class(cls):
|
|
metadata.drop_all()
|
|
|
|
def test_cache(self):
|
|
conn = testing.db.connect()
|
|
cache = {}
|
|
cached_conn = conn.execution_options(compiled_cache=cache)
|
|
|
|
ins = users.insert()
|
|
with patch.object(
|
|
ins, "compile", Mock(side_effect=ins.compile)
|
|
) as compile_mock:
|
|
cached_conn.execute(ins, {"user_name": "u1"})
|
|
cached_conn.execute(ins, {"user_name": "u2"})
|
|
cached_conn.execute(ins, {"user_name": "u3"})
|
|
eq_(compile_mock.call_count, 1)
|
|
assert len(cache) == 1
|
|
eq_(conn.execute("select count(*) from users").scalar(), 3)
|
|
|
|
@testing.only_on(
|
|
["sqlite", "mysql", "postgresql"],
|
|
"uses blob value that is problematic for some DBAPIs",
|
|
)
|
|
@testing.provide_metadata
|
|
def test_cache_noleak_on_statement_values(self):
|
|
# This is a non regression test for an object reference leak caused
|
|
# by the compiled_cache.
|
|
|
|
metadata = self.metadata
|
|
photo = Table(
|
|
"photo",
|
|
metadata,
|
|
Column(
|
|
"id", Integer, primary_key=True, test_needs_autoincrement=True
|
|
),
|
|
Column("photo_blob", LargeBinary()),
|
|
)
|
|
metadata.create_all()
|
|
|
|
conn = testing.db.connect()
|
|
cache = {}
|
|
cached_conn = conn.execution_options(compiled_cache=cache)
|
|
|
|
class PhotoBlob(bytearray):
|
|
pass
|
|
|
|
blob = PhotoBlob(100)
|
|
ref_blob = weakref.ref(blob)
|
|
|
|
ins = photo.insert()
|
|
with patch.object(
|
|
ins, "compile", Mock(side_effect=ins.compile)
|
|
) as compile_mock:
|
|
cached_conn.execute(ins, {"photo_blob": blob})
|
|
eq_(compile_mock.call_count, 1)
|
|
eq_(len(cache), 1)
|
|
eq_(conn.execute("select count(*) from photo").scalar(), 1)
|
|
|
|
del blob
|
|
|
|
gc_collect()
|
|
|
|
# The compiled statement cache should not hold any reference to the
|
|
# the statement values (only the keys).
|
|
eq_(ref_blob(), None)
|
|
|
|
def test_keys_independent_of_ordering(self):
|
|
conn = testing.db.connect()
|
|
conn.execute(
|
|
users.insert(),
|
|
{"user_id": 1, "user_name": "u1", "extra_data": "e1"},
|
|
)
|
|
cache = {}
|
|
cached_conn = conn.execution_options(compiled_cache=cache)
|
|
|
|
upd = users.update().where(users.c.user_id == bindparam("b_user_id"))
|
|
|
|
with patch.object(
|
|
upd, "compile", Mock(side_effect=upd.compile)
|
|
) as compile_mock:
|
|
cached_conn.execute(
|
|
upd,
|
|
util.OrderedDict(
|
|
[
|
|
("b_user_id", 1),
|
|
("user_name", "u2"),
|
|
("extra_data", "e2"),
|
|
]
|
|
),
|
|
)
|
|
cached_conn.execute(
|
|
upd,
|
|
util.OrderedDict(
|
|
[
|
|
("b_user_id", 1),
|
|
("extra_data", "e3"),
|
|
("user_name", "u3"),
|
|
]
|
|
),
|
|
)
|
|
cached_conn.execute(
|
|
upd,
|
|
util.OrderedDict(
|
|
[
|
|
("extra_data", "e4"),
|
|
("user_name", "u4"),
|
|
("b_user_id", 1),
|
|
]
|
|
),
|
|
)
|
|
eq_(compile_mock.call_count, 1)
|
|
eq_(len(cache), 1)
|
|
|
|
@testing.requires.schemas
|
|
@testing.provide_metadata
|
|
def test_schema_translate_in_key(self):
|
|
Table("x", self.metadata, Column("q", Integer))
|
|
Table(
|
|
"x", self.metadata, Column("q", Integer), schema=config.test_schema
|
|
)
|
|
self.metadata.create_all()
|
|
|
|
m = MetaData()
|
|
t1 = Table("x", m, Column("q", Integer))
|
|
ins = t1.insert()
|
|
stmt = select([t1.c.q])
|
|
|
|
cache = {}
|
|
with config.db.connect().execution_options(
|
|
compiled_cache=cache
|
|
) as conn:
|
|
conn.execute(ins, {"q": 1})
|
|
eq_(conn.scalar(stmt), 1)
|
|
|
|
with config.db.connect().execution_options(
|
|
compiled_cache=cache,
|
|
schema_translate_map={None: config.test_schema},
|
|
) as conn:
|
|
conn.execute(ins, {"q": 2})
|
|
eq_(conn.scalar(stmt), 2)
|
|
|
|
with config.db.connect().execution_options(
|
|
compiled_cache=cache
|
|
) as conn:
|
|
eq_(conn.scalar(stmt), 1)
|
|
|
|
|
|
class MockStrategyTest(fixtures.TestBase):
|
|
def _engine_fixture(self):
|
|
buf = util.StringIO()
|
|
|
|
def dump(sql, *multiparams, **params):
|
|
buf.write(util.text_type(sql.compile(dialect=engine.dialect)))
|
|
|
|
engine = create_mock_engine("postgresql://", executor=dump)
|
|
return engine, buf
|
|
|
|
def test_sequence_not_duped(self):
|
|
engine, buf = self._engine_fixture()
|
|
metadata = MetaData()
|
|
t = Table(
|
|
"testtable",
|
|
metadata,
|
|
Column(
|
|
"pk", Integer, Sequence("testtable_pk_seq"), primary_key=True
|
|
),
|
|
)
|
|
|
|
t.create(engine)
|
|
t.drop(engine)
|
|
|
|
eq_(re.findall(r"CREATE (\w+)", buf.getvalue()), ["SEQUENCE", "TABLE"])
|
|
|
|
eq_(re.findall(r"DROP (\w+)", buf.getvalue()), ["TABLE", "SEQUENCE"])
|
|
|
|
|
|
class SchemaTranslateTest(fixtures.TestBase, testing.AssertsExecutionResults):
|
|
__requires__ = ("schemas",)
|
|
__backend__ = True
|
|
|
|
def test_create_table(self):
|
|
map_ = {
|
|
None: config.test_schema,
|
|
"foo": config.test_schema,
|
|
"bar": None,
|
|
}
|
|
|
|
metadata = MetaData()
|
|
t1 = Table("t1", metadata, Column("x", Integer))
|
|
t2 = Table("t2", metadata, Column("x", Integer), schema="foo")
|
|
t3 = Table("t3", metadata, Column("x", Integer), schema="bar")
|
|
|
|
with self.sql_execution_asserter(config.db) as asserter:
|
|
with config.db.connect().execution_options(
|
|
schema_translate_map=map_
|
|
) as conn:
|
|
|
|
t1.create(conn)
|
|
t2.create(conn)
|
|
t3.create(conn)
|
|
|
|
t3.drop(conn)
|
|
t2.drop(conn)
|
|
t1.drop(conn)
|
|
|
|
asserter.assert_(
|
|
CompiledSQL("CREATE TABLE %s.t1 (x INTEGER)" % config.test_schema),
|
|
CompiledSQL("CREATE TABLE %s.t2 (x INTEGER)" % config.test_schema),
|
|
CompiledSQL("CREATE TABLE t3 (x INTEGER)"),
|
|
CompiledSQL("DROP TABLE t3"),
|
|
CompiledSQL("DROP TABLE %s.t2" % config.test_schema),
|
|
CompiledSQL("DROP TABLE %s.t1" % config.test_schema),
|
|
)
|
|
|
|
def _fixture(self):
|
|
metadata = self.metadata
|
|
Table("t1", metadata, Column("x", Integer), schema=config.test_schema)
|
|
Table("t2", metadata, Column("x", Integer), schema=config.test_schema)
|
|
Table("t3", metadata, Column("x", Integer), schema=None)
|
|
metadata.create_all()
|
|
|
|
def test_ddl_hastable(self):
|
|
|
|
map_ = {
|
|
None: config.test_schema,
|
|
"foo": config.test_schema,
|
|
"bar": None,
|
|
}
|
|
|
|
metadata = MetaData()
|
|
Table("t1", metadata, Column("x", Integer))
|
|
Table("t2", metadata, Column("x", Integer), schema="foo")
|
|
Table("t3", metadata, Column("x", Integer), schema="bar")
|
|
|
|
with config.db.connect().execution_options(
|
|
schema_translate_map=map_
|
|
) as conn:
|
|
metadata.create_all(conn)
|
|
|
|
insp = inspect(config.db)
|
|
is_true(insp.has_table("t1", schema=config.test_schema))
|
|
is_true(insp.has_table("t2", schema=config.test_schema))
|
|
is_true(insp.has_table("t3", schema=None))
|
|
|
|
with config.db.connect().execution_options(
|
|
schema_translate_map=map_
|
|
) as conn:
|
|
metadata.drop_all(conn)
|
|
|
|
insp = inspect(config.db)
|
|
is_false(insp.has_table("t1", schema=config.test_schema))
|
|
is_false(insp.has_table("t2", schema=config.test_schema))
|
|
is_false(insp.has_table("t3", schema=None))
|
|
|
|
@testing.provide_metadata
|
|
def test_crud(self):
|
|
self._fixture()
|
|
|
|
map_ = {
|
|
None: config.test_schema,
|
|
"foo": config.test_schema,
|
|
"bar": None,
|
|
}
|
|
|
|
metadata = MetaData()
|
|
t1 = Table("t1", metadata, Column("x", Integer))
|
|
t2 = Table("t2", metadata, Column("x", Integer), schema="foo")
|
|
t3 = Table("t3", metadata, Column("x", Integer), schema="bar")
|
|
|
|
with self.sql_execution_asserter(config.db) as asserter:
|
|
with config.db.connect().execution_options(
|
|
schema_translate_map=map_
|
|
) as conn:
|
|
|
|
conn.execute(t1.insert(), {"x": 1})
|
|
conn.execute(t2.insert(), {"x": 1})
|
|
conn.execute(t3.insert(), {"x": 1})
|
|
|
|
conn.execute(t1.update().values(x=1).where(t1.c.x == 1))
|
|
conn.execute(t2.update().values(x=2).where(t2.c.x == 1))
|
|
conn.execute(t3.update().values(x=3).where(t3.c.x == 1))
|
|
|
|
eq_(conn.scalar(select([t1.c.x])), 1)
|
|
eq_(conn.scalar(select([t2.c.x])), 2)
|
|
eq_(conn.scalar(select([t3.c.x])), 3)
|
|
|
|
conn.execute(t1.delete())
|
|
conn.execute(t2.delete())
|
|
conn.execute(t3.delete())
|
|
|
|
asserter.assert_(
|
|
CompiledSQL(
|
|
"INSERT INTO %s.t1 (x) VALUES (:x)" % config.test_schema
|
|
),
|
|
CompiledSQL(
|
|
"INSERT INTO %s.t2 (x) VALUES (:x)" % config.test_schema
|
|
),
|
|
CompiledSQL("INSERT INTO t3 (x) VALUES (:x)"),
|
|
CompiledSQL(
|
|
"UPDATE %s.t1 SET x=:x WHERE %s.t1.x = :x_1"
|
|
% (config.test_schema, config.test_schema)
|
|
),
|
|
CompiledSQL(
|
|
"UPDATE %s.t2 SET x=:x WHERE %s.t2.x = :x_1"
|
|
% (config.test_schema, config.test_schema)
|
|
),
|
|
CompiledSQL("UPDATE t3 SET x=:x WHERE t3.x = :x_1"),
|
|
CompiledSQL(
|
|
"SELECT %s.t1.x FROM %s.t1"
|
|
% (config.test_schema, config.test_schema)
|
|
),
|
|
CompiledSQL(
|
|
"SELECT %s.t2.x FROM %s.t2"
|
|
% (config.test_schema, config.test_schema)
|
|
),
|
|
CompiledSQL("SELECT t3.x FROM t3"),
|
|
CompiledSQL("DELETE FROM %s.t1" % config.test_schema),
|
|
CompiledSQL("DELETE FROM %s.t2" % config.test_schema),
|
|
CompiledSQL("DELETE FROM t3"),
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_via_engine(self):
|
|
self._fixture()
|
|
|
|
map_ = {
|
|
None: config.test_schema,
|
|
"foo": config.test_schema,
|
|
"bar": None,
|
|
}
|
|
|
|
metadata = MetaData()
|
|
t2 = Table("t2", metadata, Column("x", Integer), schema="foo")
|
|
|
|
with self.sql_execution_asserter(config.db) as asserter:
|
|
eng = config.db.execution_options(schema_translate_map=map_)
|
|
conn = eng.connect()
|
|
conn.execute(select([t2.c.x]))
|
|
asserter.assert_(
|
|
CompiledSQL(
|
|
"SELECT %s.t2.x FROM %s.t2"
|
|
% (config.test_schema, config.test_schema)
|
|
)
|
|
)
|
|
|
|
|
|
class ExecutionOptionsTest(fixtures.TestBase):
|
|
def test_dialect_conn_options(self):
|
|
engine = testing_engine("sqlite://", options=dict(_initialize=False))
|
|
engine.dialect = Mock()
|
|
conn = engine.connect()
|
|
c2 = conn.execution_options(foo="bar")
|
|
eq_(
|
|
engine.dialect.set_connection_execution_options.mock_calls,
|
|
[call(c2, {"foo": "bar"})],
|
|
)
|
|
|
|
def test_dialect_engine_options(self):
|
|
engine = testing_engine("sqlite://")
|
|
engine.dialect = Mock()
|
|
e2 = engine.execution_options(foo="bar")
|
|
eq_(
|
|
engine.dialect.set_engine_execution_options.mock_calls,
|
|
[call(e2, {"foo": "bar"})],
|
|
)
|
|
|
|
def test_dialect_engine_construction_options(self):
|
|
dialect = Mock()
|
|
engine = Engine(
|
|
Mock(), dialect, Mock(), execution_options={"foo": "bar"}
|
|
)
|
|
eq_(
|
|
dialect.set_engine_execution_options.mock_calls,
|
|
[call(engine, {"foo": "bar"})],
|
|
)
|
|
|
|
def test_propagate_engine_to_connection(self):
|
|
engine = testing_engine(
|
|
"sqlite://", options=dict(execution_options={"foo": "bar"})
|
|
)
|
|
conn = engine.connect()
|
|
eq_(conn._execution_options, {"foo": "bar"})
|
|
|
|
def test_propagate_option_engine_to_connection(self):
|
|
e1 = testing_engine(
|
|
"sqlite://", options=dict(execution_options={"foo": "bar"})
|
|
)
|
|
e2 = e1.execution_options(bat="hoho")
|
|
c1 = e1.connect()
|
|
c2 = e2.connect()
|
|
eq_(c1._execution_options, {"foo": "bar"})
|
|
eq_(c2._execution_options, {"foo": "bar", "bat": "hoho"})
|
|
|
|
def test_get_engine_execution_options(self):
|
|
engine = testing_engine("sqlite://")
|
|
engine.dialect = Mock()
|
|
e2 = engine.execution_options(foo="bar")
|
|
|
|
eq_(e2.get_execution_options(), {"foo": "bar"})
|
|
|
|
def test_get_connection_execution_options(self):
|
|
engine = testing_engine("sqlite://", options=dict(_initialize=False))
|
|
engine.dialect = Mock()
|
|
conn = engine.connect()
|
|
c = conn.execution_options(foo="bar")
|
|
|
|
eq_(c.get_execution_options(), {"foo": "bar"})
|
|
|
|
|
|
class EngineEventsTest(fixtures.TestBase):
|
|
__requires__ = ("ad_hoc_engines",)
|
|
__backend__ = True
|
|
|
|
def tearDown(self):
|
|
Engine.dispatch._clear()
|
|
Engine._has_events = False
|
|
|
|
def _assert_stmts(self, expected, received):
|
|
list(received)
|
|
for stmt, params, posn in expected:
|
|
if not received:
|
|
assert False, "Nothing available for stmt: %s" % stmt
|
|
while received:
|
|
teststmt, testparams, testmultiparams = received.pop(0)
|
|
teststmt = (
|
|
re.compile(r"[\n\t ]+", re.M).sub(" ", teststmt).strip()
|
|
)
|
|
if teststmt.startswith(stmt) and (
|
|
testparams == params or testparams == posn
|
|
):
|
|
break
|
|
|
|
def test_per_engine_independence(self):
|
|
e1 = testing_engine(config.db_url)
|
|
e2 = testing_engine(config.db_url)
|
|
|
|
canary = Mock()
|
|
event.listen(e1, "before_execute", canary)
|
|
s1 = select([1])
|
|
s2 = select([2])
|
|
e1.execute(s1)
|
|
e2.execute(s2)
|
|
eq_([arg[1][1] for arg in canary.mock_calls], [s1])
|
|
event.listen(e2, "before_execute", canary)
|
|
e1.execute(s1)
|
|
e2.execute(s2)
|
|
eq_([arg[1][1] for arg in canary.mock_calls], [s1, s1, s2])
|
|
|
|
def test_per_engine_plus_global(self):
|
|
canary = Mock()
|
|
event.listen(Engine, "before_execute", canary.be1)
|
|
e1 = testing_engine(config.db_url)
|
|
e2 = testing_engine(config.db_url)
|
|
|
|
event.listen(e1, "before_execute", canary.be2)
|
|
|
|
event.listen(Engine, "before_execute", canary.be3)
|
|
e1.connect()
|
|
e2.connect()
|
|
|
|
e1.execute(select([1]))
|
|
eq_(canary.be1.call_count, 1)
|
|
eq_(canary.be2.call_count, 1)
|
|
|
|
e2.execute(select([1]))
|
|
|
|
eq_(canary.be1.call_count, 2)
|
|
eq_(canary.be2.call_count, 1)
|
|
eq_(canary.be3.call_count, 2)
|
|
|
|
def test_per_connection_plus_engine(self):
|
|
canary = Mock()
|
|
e1 = testing_engine(config.db_url)
|
|
|
|
event.listen(e1, "before_execute", canary.be1)
|
|
|
|
conn = e1.connect()
|
|
event.listen(conn, "before_execute", canary.be2)
|
|
conn.execute(select([1]))
|
|
|
|
eq_(canary.be1.call_count, 1)
|
|
eq_(canary.be2.call_count, 1)
|
|
|
|
conn._branch().execute(select([1]))
|
|
eq_(canary.be1.call_count, 2)
|
|
eq_(canary.be2.call_count, 2)
|
|
|
|
def test_add_event_after_connect(self):
|
|
# new feature as of #2978
|
|
canary = Mock()
|
|
e1 = create_engine(config.db_url)
|
|
assert not e1._has_events
|
|
|
|
conn = e1.connect()
|
|
|
|
event.listen(e1, "before_execute", canary.be1)
|
|
conn.execute(select([1]))
|
|
|
|
eq_(canary.be1.call_count, 1)
|
|
|
|
conn._branch().execute(select([1]))
|
|
eq_(canary.be1.call_count, 2)
|
|
|
|
def test_force_conn_events_false(self):
|
|
canary = Mock()
|
|
e1 = create_engine(config.db_url)
|
|
assert not e1._has_events
|
|
|
|
event.listen(e1, "before_execute", canary.be1)
|
|
|
|
conn = e1._connection_cls(
|
|
e1, connection=e1.raw_connection(), _has_events=False
|
|
)
|
|
|
|
conn.execute(select([1]))
|
|
|
|
eq_(canary.be1.call_count, 0)
|
|
|
|
conn._branch().execute(select([1]))
|
|
eq_(canary.be1.call_count, 0)
|
|
|
|
def test_cursor_events_ctx_execute_scalar(self):
|
|
canary = Mock()
|
|
e1 = testing_engine(config.db_url)
|
|
|
|
event.listen(e1, "before_cursor_execute", canary.bce)
|
|
event.listen(e1, "after_cursor_execute", canary.ace)
|
|
|
|
stmt = str(select([1]).compile(dialect=e1.dialect))
|
|
|
|
with e1.connect() as conn:
|
|
dialect = conn.dialect
|
|
|
|
ctx = dialect.execution_ctx_cls._init_statement(
|
|
dialect, conn, conn.connection, stmt, {}
|
|
)
|
|
|
|
ctx._execute_scalar(stmt, Integer())
|
|
|
|
eq_(
|
|
canary.bce.mock_calls,
|
|
[call(conn, ctx.cursor, stmt, ctx.parameters[0], ctx, False)],
|
|
)
|
|
eq_(
|
|
canary.ace.mock_calls,
|
|
[call(conn, ctx.cursor, stmt, ctx.parameters[0], ctx, False)],
|
|
)
|
|
|
|
def test_cursor_events_execute(self):
|
|
canary = Mock()
|
|
e1 = testing_engine(config.db_url)
|
|
|
|
event.listen(e1, "before_cursor_execute", canary.bce)
|
|
event.listen(e1, "after_cursor_execute", canary.ace)
|
|
|
|
stmt = str(select([1]).compile(dialect=e1.dialect))
|
|
|
|
with e1.connect() as conn:
|
|
|
|
result = conn.execute(stmt)
|
|
|
|
ctx = result.context
|
|
eq_(
|
|
canary.bce.mock_calls,
|
|
[call(conn, ctx.cursor, stmt, ctx.parameters[0], ctx, False)],
|
|
)
|
|
eq_(
|
|
canary.ace.mock_calls,
|
|
[call(conn, ctx.cursor, stmt, ctx.parameters[0], ctx, False)],
|
|
)
|
|
|
|
def test_argument_format_execute(self):
|
|
def before_execute(conn, clauseelement, multiparams, params):
|
|
assert isinstance(multiparams, (list, tuple))
|
|
assert isinstance(params, dict)
|
|
|
|
def after_execute(conn, clauseelement, multiparams, params, result):
|
|
assert isinstance(multiparams, (list, tuple))
|
|
assert isinstance(params, dict)
|
|
|
|
e1 = testing_engine(config.db_url)
|
|
event.listen(e1, "before_execute", before_execute)
|
|
event.listen(e1, "after_execute", after_execute)
|
|
|
|
e1.execute(select([1]))
|
|
e1.execute(select([1]).compile(dialect=e1.dialect).statement)
|
|
e1.execute(select([1]).compile(dialect=e1.dialect))
|
|
e1._execute_compiled(select([1]).compile(dialect=e1.dialect), (), {})
|
|
|
|
@testing.fails_on("firebird", "Data type unknown")
|
|
def test_execute_events(self):
|
|
|
|
stmts = []
|
|
cursor_stmts = []
|
|
|
|
def execute(conn, clauseelement, multiparams, params):
|
|
stmts.append((str(clauseelement), params, multiparams))
|
|
|
|
def cursor_execute(
|
|
conn, cursor, statement, parameters, context, executemany
|
|
):
|
|
cursor_stmts.append((str(statement), parameters, None))
|
|
|
|
for engine in [
|
|
engines.testing_engine(options=dict(implicit_returning=False)),
|
|
engines.testing_engine(
|
|
options=dict(implicit_returning=False)
|
|
).connect(),
|
|
]:
|
|
event.listen(engine, "before_execute", execute)
|
|
event.listen(engine, "before_cursor_execute", cursor_execute)
|
|
m = MetaData(engine)
|
|
t1 = Table(
|
|
"t1",
|
|
m,
|
|
Column("c1", Integer, primary_key=True),
|
|
Column(
|
|
"c2",
|
|
String(50),
|
|
default=func.lower("Foo"),
|
|
primary_key=True,
|
|
),
|
|
)
|
|
m.create_all()
|
|
try:
|
|
t1.insert().execute(c1=5, c2="some data")
|
|
t1.insert().execute(c1=6)
|
|
eq_(
|
|
engine.execute("select * from t1").fetchall(),
|
|
[(5, "some data"), (6, "foo")],
|
|
)
|
|
finally:
|
|
m.drop_all()
|
|
|
|
compiled = [
|
|
("CREATE TABLE t1", {}, None),
|
|
(
|
|
"INSERT INTO t1 (c1, c2)",
|
|
{"c2": "some data", "c1": 5},
|
|
None,
|
|
),
|
|
("INSERT INTO t1 (c1, c2)", {"c1": 6}, None),
|
|
("select * from t1", {}, None),
|
|
("DROP TABLE t1", {}, None),
|
|
]
|
|
|
|
cursor = [
|
|
("CREATE TABLE t1", {}, ()),
|
|
(
|
|
"INSERT INTO t1 (c1, c2)",
|
|
{"c2": "some data", "c1": 5},
|
|
(5, "some data"),
|
|
),
|
|
("SELECT lower", {"lower_1": "Foo"}, ("Foo",)),
|
|
(
|
|
"INSERT INTO t1 (c1, c2)",
|
|
{"c2": "foo", "c1": 6},
|
|
(6, "foo"),
|
|
),
|
|
("select * from t1", {}, ()),
|
|
("DROP TABLE t1", {}, ()),
|
|
]
|
|
self._assert_stmts(compiled, stmts)
|
|
self._assert_stmts(cursor, cursor_stmts)
|
|
|
|
def test_options(self):
|
|
canary = []
|
|
|
|
def execute(conn, *args, **kw):
|
|
canary.append("execute")
|
|
|
|
def cursor_execute(conn, *args, **kw):
|
|
canary.append("cursor_execute")
|
|
|
|
engine = engines.testing_engine()
|
|
event.listen(engine, "before_execute", execute)
|
|
event.listen(engine, "before_cursor_execute", cursor_execute)
|
|
conn = engine.connect()
|
|
c2 = conn.execution_options(foo="bar")
|
|
eq_(c2._execution_options, {"foo": "bar"})
|
|
c2.execute(select([1]))
|
|
c3 = c2.execution_options(bar="bat")
|
|
eq_(c3._execution_options, {"foo": "bar", "bar": "bat"})
|
|
eq_(canary, ["execute", "cursor_execute"])
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_generative_engine_event_dispatch(self):
|
|
canary = []
|
|
|
|
def l1(*arg, **kw):
|
|
canary.append("l1")
|
|
|
|
def l2(*arg, **kw):
|
|
canary.append("l2")
|
|
|
|
def l3(*arg, **kw):
|
|
canary.append("l3")
|
|
|
|
eng = engines.testing_engine(
|
|
options={"execution_options": {"base": "x1"}}
|
|
)
|
|
event.listen(eng, "before_execute", l1)
|
|
|
|
eng1 = eng.execution_options(foo="b1")
|
|
event.listen(eng, "before_execute", l2)
|
|
event.listen(eng1, "before_execute", l3)
|
|
|
|
eng.execute(select([1])).close()
|
|
|
|
eq_(canary, ["l1", "l2"])
|
|
|
|
eng1.execute(select([1])).close()
|
|
|
|
eq_(canary, ["l1", "l2", "l3", "l1", "l2"])
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_clslevel_engine_event_options(self):
|
|
canary = []
|
|
|
|
def l1(*arg, **kw):
|
|
canary.append("l1")
|
|
|
|
def l2(*arg, **kw):
|
|
canary.append("l2")
|
|
|
|
def l3(*arg, **kw):
|
|
canary.append("l3")
|
|
|
|
def l4(*arg, **kw):
|
|
canary.append("l4")
|
|
|
|
event.listen(Engine, "before_execute", l1)
|
|
|
|
eng = engines.testing_engine(
|
|
options={"execution_options": {"base": "x1"}}
|
|
)
|
|
event.listen(eng, "before_execute", l2)
|
|
|
|
eng1 = eng.execution_options(foo="b1")
|
|
event.listen(eng, "before_execute", l3)
|
|
event.listen(eng1, "before_execute", l4)
|
|
|
|
eng.execute(select([1])).close()
|
|
|
|
eq_(canary, ["l1", "l2", "l3"])
|
|
|
|
eng1.execute(select([1])).close()
|
|
|
|
eq_(canary, ["l1", "l2", "l3", "l4", "l1", "l2", "l3"])
|
|
|
|
canary[:] = []
|
|
|
|
event.remove(Engine, "before_execute", l1)
|
|
event.remove(eng1, "before_execute", l4)
|
|
event.remove(eng, "before_execute", l3)
|
|
|
|
eng1.execute(select([1])).close()
|
|
eq_(canary, ["l2"])
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_cant_listen_to_option_engine(self):
|
|
from sqlalchemy.engine import base
|
|
|
|
def evt(*arg, **kw):
|
|
pass
|
|
|
|
assert_raises_message(
|
|
tsa.exc.InvalidRequestError,
|
|
r"Can't assign an event directly to the "
|
|
"<class 'sqlalchemy.engine.base.OptionEngine'> class",
|
|
event.listen,
|
|
base.OptionEngine,
|
|
"before_cursor_execute",
|
|
evt,
|
|
)
|
|
|
|
@testing.requires.ad_hoc_engines
|
|
def test_dispose_event(self):
|
|
canary = Mock()
|
|
eng = create_engine(testing.db.url)
|
|
event.listen(eng, "engine_disposed", canary)
|
|
|
|
conn = eng.connect()
|
|
conn.close()
|
|
eng.dispose()
|
|
|
|
conn = eng.connect()
|
|
conn.close()
|
|
|
|
eq_(canary.mock_calls, [call(eng)])
|
|
|
|
eng.dispose()
|
|
|
|
eq_(canary.mock_calls, [call(eng), call(eng)])
|
|
|
|
def test_retval_flag(self):
|
|
canary = []
|
|
|
|
def tracker(name):
|
|
def go(conn, *args, **kw):
|
|
canary.append(name)
|
|
|
|
return go
|
|
|
|
def execute(conn, clauseelement, multiparams, params):
|
|
canary.append("execute")
|
|
return clauseelement, multiparams, params
|
|
|
|
def cursor_execute(
|
|
conn, cursor, statement, parameters, context, executemany
|
|
):
|
|
canary.append("cursor_execute")
|
|
return statement, parameters
|
|
|
|
engine = engines.testing_engine()
|
|
|
|
assert_raises(
|
|
tsa.exc.ArgumentError,
|
|
event.listen,
|
|
engine,
|
|
"begin",
|
|
tracker("begin"),
|
|
retval=True,
|
|
)
|
|
|
|
event.listen(engine, "before_execute", execute, retval=True)
|
|
event.listen(
|
|
engine, "before_cursor_execute", cursor_execute, retval=True
|
|
)
|
|
engine.execute(select([1]))
|
|
eq_(canary, ["execute", "cursor_execute"])
|
|
|
|
def test_engine_connect(self):
|
|
engine = engines.testing_engine()
|
|
|
|
tracker = Mock()
|
|
event.listen(engine, "engine_connect", tracker)
|
|
|
|
c1 = engine.connect()
|
|
c2 = c1._branch()
|
|
c1.close()
|
|
eq_(tracker.mock_calls, [call(c1, False), call(c2, True)])
|
|
|
|
def test_execution_options(self):
|
|
engine = engines.testing_engine()
|
|
|
|
engine_tracker = Mock()
|
|
conn_tracker = Mock()
|
|
|
|
event.listen(engine, "set_engine_execution_options", engine_tracker)
|
|
event.listen(engine, "set_connection_execution_options", conn_tracker)
|
|
|
|
e2 = engine.execution_options(e1="opt_e1")
|
|
c1 = engine.connect()
|
|
c2 = c1.execution_options(c1="opt_c1")
|
|
c3 = e2.connect()
|
|
c4 = c3.execution_options(c3="opt_c3")
|
|
eq_(engine_tracker.mock_calls, [call(e2, {"e1": "opt_e1"})])
|
|
eq_(
|
|
conn_tracker.mock_calls,
|
|
[call(c2, {"c1": "opt_c1"}), call(c4, {"c3": "opt_c3"})],
|
|
)
|
|
|
|
@testing.requires.sequences
|
|
@testing.provide_metadata
|
|
def test_cursor_execute(self):
|
|
canary = []
|
|
|
|
def tracker(name):
|
|
def go(conn, cursor, statement, parameters, context, executemany):
|
|
canary.append((statement, context))
|
|
|
|
return go
|
|
|
|
engine = engines.testing_engine()
|
|
|
|
t = Table(
|
|
"t",
|
|
self.metadata,
|
|
Column("x", Integer, Sequence("t_id_seq"), primary_key=True),
|
|
implicit_returning=False,
|
|
)
|
|
self.metadata.create_all(engine)
|
|
|
|
with engine.begin() as conn:
|
|
event.listen(
|
|
conn, "before_cursor_execute", tracker("cursor_execute")
|
|
)
|
|
conn.execute(t.insert())
|
|
|
|
if testing.requires.supports_lastrowid.enabled:
|
|
# new MariaDB 10.3 supports sequences + lastrowid; only
|
|
# one statement
|
|
assert "INSERT" in canary[0][0]
|
|
else:
|
|
# we see the sequence pre-executed in the first call
|
|
assert "t_id_seq" in canary[0][0]
|
|
assert "INSERT" in canary[1][0]
|
|
# same context
|
|
is_(canary[0][1], canary[1][1])
|
|
|
|
def test_transactional(self):
|
|
canary = []
|
|
|
|
def tracker(name):
|
|
def go(conn, *args, **kw):
|
|
canary.append(name)
|
|
|
|
return go
|
|
|
|
engine = engines.testing_engine()
|
|
event.listen(engine, "before_execute", tracker("execute"))
|
|
event.listen(
|
|
engine, "before_cursor_execute", tracker("cursor_execute")
|
|
)
|
|
event.listen(engine, "begin", tracker("begin"))
|
|
event.listen(engine, "commit", tracker("commit"))
|
|
event.listen(engine, "rollback", tracker("rollback"))
|
|
|
|
conn = engine.connect()
|
|
trans = conn.begin()
|
|
conn.execute(select([1]))
|
|
trans.rollback()
|
|
trans = conn.begin()
|
|
conn.execute(select([1]))
|
|
trans.commit()
|
|
|
|
eq_(
|
|
canary,
|
|
[
|
|
"begin",
|
|
"execute",
|
|
"cursor_execute",
|
|
"rollback",
|
|
"begin",
|
|
"execute",
|
|
"cursor_execute",
|
|
"commit",
|
|
],
|
|
)
|
|
|
|
def test_transactional_named(self):
|
|
canary = []
|
|
|
|
def tracker(name):
|
|
def go(*args, **kw):
|
|
canary.append((name, set(kw)))
|
|
|
|
return go
|
|
|
|
engine = engines.testing_engine()
|
|
event.listen(engine, "before_execute", tracker("execute"), named=True)
|
|
event.listen(
|
|
engine,
|
|
"before_cursor_execute",
|
|
tracker("cursor_execute"),
|
|
named=True,
|
|
)
|
|
event.listen(engine, "begin", tracker("begin"), named=True)
|
|
event.listen(engine, "commit", tracker("commit"), named=True)
|
|
event.listen(engine, "rollback", tracker("rollback"), named=True)
|
|
|
|
conn = engine.connect()
|
|
trans = conn.begin()
|
|
conn.execute(select([1]))
|
|
trans.rollback()
|
|
trans = conn.begin()
|
|
conn.execute(select([1]))
|
|
trans.commit()
|
|
|
|
eq_(
|
|
canary,
|
|
[
|
|
("begin", set(["conn"])),
|
|
(
|
|
"execute",
|
|
set(["conn", "clauseelement", "multiparams", "params"]),
|
|
),
|
|
(
|
|
"cursor_execute",
|
|
set(
|
|
[
|
|
"conn",
|
|
"cursor",
|
|
"executemany",
|
|
"statement",
|
|
"parameters",
|
|
"context",
|
|
]
|
|
),
|
|
),
|
|
("rollback", set(["conn"])),
|
|
("begin", set(["conn"])),
|
|
(
|
|
"execute",
|
|
set(["conn", "clauseelement", "multiparams", "params"]),
|
|
),
|
|
(
|
|
"cursor_execute",
|
|
set(
|
|
[
|
|
"conn",
|
|
"cursor",
|
|
"executemany",
|
|
"statement",
|
|
"parameters",
|
|
"context",
|
|
]
|
|
),
|
|
),
|
|
("commit", set(["conn"])),
|
|
],
|
|
)
|
|
|
|
@testing.requires.savepoints
|
|
@testing.requires.two_phase_transactions
|
|
def test_transactional_advanced(self):
|
|
canary1 = []
|
|
|
|
def tracker1(name):
|
|
def go(*args, **kw):
|
|
canary1.append(name)
|
|
|
|
return go
|
|
|
|
canary2 = []
|
|
|
|
def tracker2(name):
|
|
def go(*args, **kw):
|
|
canary2.append(name)
|
|
|
|
return go
|
|
|
|
engine = engines.testing_engine()
|
|
for name in [
|
|
"begin",
|
|
"savepoint",
|
|
"rollback_savepoint",
|
|
"release_savepoint",
|
|
"rollback",
|
|
"begin_twophase",
|
|
"prepare_twophase",
|
|
"commit_twophase",
|
|
]:
|
|
event.listen(engine, "%s" % name, tracker1(name))
|
|
|
|
conn = engine.connect()
|
|
for name in [
|
|
"begin",
|
|
"savepoint",
|
|
"rollback_savepoint",
|
|
"release_savepoint",
|
|
"rollback",
|
|
"begin_twophase",
|
|
"prepare_twophase",
|
|
"commit_twophase",
|
|
]:
|
|
event.listen(conn, "%s" % name, tracker2(name))
|
|
|
|
trans = conn.begin()
|
|
trans2 = conn.begin_nested()
|
|
conn.execute(select([1]))
|
|
trans2.rollback()
|
|
trans2 = conn.begin_nested()
|
|
conn.execute(select([1]))
|
|
trans2.commit()
|
|
trans.rollback()
|
|
|
|
trans = conn.begin_twophase()
|
|
conn.execute(select([1]))
|
|
trans.prepare()
|
|
trans.commit()
|
|
|
|
eq_(
|
|
canary1,
|
|
[
|
|
"begin",
|
|
"savepoint",
|
|
"rollback_savepoint",
|
|
"savepoint",
|
|
"release_savepoint",
|
|
"rollback",
|
|
"begin_twophase",
|
|
"prepare_twophase",
|
|
"commit_twophase",
|
|
],
|
|
)
|
|
eq_(
|
|
canary2,
|
|
[
|
|
"begin",
|
|
"savepoint",
|
|
"rollback_savepoint",
|
|
"savepoint",
|
|
"release_savepoint",
|
|
"rollback",
|
|
"begin_twophase",
|
|
"prepare_twophase",
|
|
"commit_twophase",
|
|
],
|
|
)
|
|
|
|
|
|
class HandleErrorTest(fixtures.TestBase):
|
|
__requires__ = ("ad_hoc_engines",)
|
|
__backend__ = True
|
|
|
|
def tearDown(self):
|
|
Engine.dispatch._clear()
|
|
Engine._has_events = False
|
|
|
|
def test_handle_error(self):
|
|
engine = engines.testing_engine()
|
|
canary = Mock(return_value=None)
|
|
|
|
event.listen(engine, "handle_error", canary)
|
|
|
|
with engine.connect() as conn:
|
|
try:
|
|
conn.execute("SELECT FOO FROM I_DONT_EXIST")
|
|
assert False
|
|
except tsa.exc.DBAPIError as e:
|
|
ctx = canary.mock_calls[0][1][0]
|
|
|
|
eq_(ctx.original_exception, e.orig)
|
|
is_(ctx.sqlalchemy_exception, e)
|
|
eq_(ctx.statement, "SELECT FOO FROM I_DONT_EXIST")
|
|
|
|
def test_exception_event_reraise(self):
|
|
engine = engines.testing_engine()
|
|
|
|
class MyException(Exception):
|
|
pass
|
|
|
|
@event.listens_for(engine, "handle_error", retval=True)
|
|
def err(context):
|
|
stmt = context.statement
|
|
exception = context.original_exception
|
|
if "ERROR ONE" in str(stmt):
|
|
return MyException("my exception")
|
|
elif "ERROR TWO" in str(stmt):
|
|
return exception
|
|
else:
|
|
return None
|
|
|
|
conn = engine.connect()
|
|
# case 1: custom exception
|
|
assert_raises_message(
|
|
MyException,
|
|
"my exception",
|
|
conn.execute,
|
|
"SELECT 'ERROR ONE' FROM I_DONT_EXIST",
|
|
)
|
|
# case 2: return the DBAPI exception we're given;
|
|
# no wrapping should occur
|
|
assert_raises(
|
|
conn.dialect.dbapi.Error,
|
|
conn.execute,
|
|
"SELECT 'ERROR TWO' FROM I_DONT_EXIST",
|
|
)
|
|
# case 3: normal wrapping
|
|
assert_raises(
|
|
tsa.exc.DBAPIError,
|
|
conn.execute,
|
|
"SELECT 'ERROR THREE' FROM I_DONT_EXIST",
|
|
)
|
|
|
|
def test_exception_event_reraise_chaining(self):
|
|
engine = engines.testing_engine()
|
|
|
|
class MyException1(Exception):
|
|
pass
|
|
|
|
class MyException2(Exception):
|
|
pass
|
|
|
|
class MyException3(Exception):
|
|
pass
|
|
|
|
@event.listens_for(engine, "handle_error", retval=True)
|
|
def err1(context):
|
|
stmt = context.statement
|
|
|
|
if (
|
|
"ERROR ONE" in str(stmt)
|
|
or "ERROR TWO" in str(stmt)
|
|
or "ERROR THREE" in str(stmt)
|
|
):
|
|
return MyException1("my exception")
|
|
elif "ERROR FOUR" in str(stmt):
|
|
raise MyException3("my exception short circuit")
|
|
|
|
@event.listens_for(engine, "handle_error", retval=True)
|
|
def err2(context):
|
|
stmt = context.statement
|
|
if (
|
|
"ERROR ONE" in str(stmt) or "ERROR FOUR" in str(stmt)
|
|
) and isinstance(context.chained_exception, MyException1):
|
|
raise MyException2("my exception chained")
|
|
elif "ERROR TWO" in str(stmt):
|
|
return context.chained_exception
|
|
else:
|
|
return None
|
|
|
|
conn = engine.connect()
|
|
|
|
with patch.object(
|
|
engine.dialect.execution_ctx_cls, "handle_dbapi_exception"
|
|
) as patched:
|
|
assert_raises_message(
|
|
MyException2,
|
|
"my exception chained",
|
|
conn.execute,
|
|
"SELECT 'ERROR ONE' FROM I_DONT_EXIST",
|
|
)
|
|
eq_(patched.call_count, 1)
|
|
|
|
with patch.object(
|
|
engine.dialect.execution_ctx_cls, "handle_dbapi_exception"
|
|
) as patched:
|
|
assert_raises(
|
|
MyException1,
|
|
conn.execute,
|
|
"SELECT 'ERROR TWO' FROM I_DONT_EXIST",
|
|
)
|
|
eq_(patched.call_count, 1)
|
|
|
|
with patch.object(
|
|
engine.dialect.execution_ctx_cls, "handle_dbapi_exception"
|
|
) as patched:
|
|
# test that non None from err1 isn't cancelled out
|
|
# by err2
|
|
assert_raises(
|
|
MyException1,
|
|
conn.execute,
|
|
"SELECT 'ERROR THREE' FROM I_DONT_EXIST",
|
|
)
|
|
eq_(patched.call_count, 1)
|
|
|
|
with patch.object(
|
|
engine.dialect.execution_ctx_cls, "handle_dbapi_exception"
|
|
) as patched:
|
|
assert_raises(
|
|
tsa.exc.DBAPIError,
|
|
conn.execute,
|
|
"SELECT 'ERROR FIVE' FROM I_DONT_EXIST",
|
|
)
|
|
eq_(patched.call_count, 1)
|
|
|
|
with patch.object(
|
|
engine.dialect.execution_ctx_cls, "handle_dbapi_exception"
|
|
) as patched:
|
|
assert_raises_message(
|
|
MyException3,
|
|
"my exception short circuit",
|
|
conn.execute,
|
|
"SELECT 'ERROR FOUR' FROM I_DONT_EXIST",
|
|
)
|
|
eq_(patched.call_count, 1)
|
|
|
|
def test_exception_autorollback_fails(self):
|
|
engine = engines.testing_engine()
|
|
conn = engine.connect()
|
|
|
|
def boom(connection):
|
|
raise engine.dialect.dbapi.OperationalError("rollback failed")
|
|
|
|
with expect_warnings(
|
|
r"An exception has occurred during handling of a previous "
|
|
r"exception. The previous exception "
|
|
r"is.*(?:i_dont_exist|does not exist)",
|
|
py2konly=True,
|
|
):
|
|
with patch.object(conn.dialect, "do_rollback", boom):
|
|
assert_raises_message(
|
|
tsa.exc.OperationalError,
|
|
"rollback failed",
|
|
conn.execute,
|
|
"insert into i_dont_exist (x) values ('y')",
|
|
)
|
|
|
|
def test_exception_event_ad_hoc_context(self):
|
|
"""test that handle_error is called with a context in
|
|
cases where _handle_dbapi_error() is normally called without
|
|
any context.
|
|
|
|
"""
|
|
|
|
engine = engines.testing_engine()
|
|
|
|
listener = Mock(return_value=None)
|
|
event.listen(engine, "handle_error", listener)
|
|
|
|
nope = SomeException("nope")
|
|
|
|
class MyType(TypeDecorator):
|
|
impl = Integer
|
|
|
|
def process_bind_param(self, value, dialect):
|
|
raise nope
|
|
|
|
with engine.connect() as conn:
|
|
assert_raises_message(
|
|
tsa.exc.StatementError,
|
|
r"\(.*.SomeException\) " r"nope\n\[SQL\: u?SELECT 1 ",
|
|
conn.execute,
|
|
select([1]).where(column("foo") == literal("bar", MyType())),
|
|
)
|
|
|
|
ctx = listener.mock_calls[0][1][0]
|
|
assert ctx.statement.startswith("SELECT 1 ")
|
|
is_(ctx.is_disconnect, False)
|
|
is_(ctx.original_exception, nope)
|
|
|
|
def test_exception_event_non_dbapi_error(self):
|
|
"""test that dbapi_error is called with a context in
|
|
cases where DBAPI raises an exception that is not a DBAPI
|
|
exception, e.g. internal errors or encoding problems.
|
|
|
|
"""
|
|
engine = engines.testing_engine()
|
|
|
|
listener = Mock(return_value=None)
|
|
event.listen(engine, "handle_error", listener)
|
|
|
|
nope = TypeError("I'm not a DBAPI error")
|
|
with engine.connect() as c:
|
|
c.connection.cursor = Mock(
|
|
return_value=Mock(execute=Mock(side_effect=nope))
|
|
)
|
|
|
|
assert_raises_message(
|
|
TypeError, "I'm not a DBAPI error", c.execute, "select "
|
|
)
|
|
ctx = listener.mock_calls[0][1][0]
|
|
eq_(ctx.statement, "select ")
|
|
is_(ctx.is_disconnect, False)
|
|
is_(ctx.original_exception, nope)
|
|
|
|
def test_exception_event_disable_handlers(self):
|
|
engine = engines.testing_engine()
|
|
|
|
class MyException1(Exception):
|
|
pass
|
|
|
|
@event.listens_for(engine, "handle_error")
|
|
def err1(context):
|
|
stmt = context.statement
|
|
|
|
if "ERROR_ONE" in str(stmt):
|
|
raise MyException1("my exception short circuit")
|
|
|
|
with engine.connect() as conn:
|
|
assert_raises(
|
|
tsa.exc.DBAPIError,
|
|
conn.execution_options(skip_user_error_events=True).execute,
|
|
"SELECT ERROR_ONE FROM I_DONT_EXIST",
|
|
)
|
|
|
|
assert_raises(
|
|
MyException1,
|
|
conn.execution_options(skip_user_error_events=False).execute,
|
|
"SELECT ERROR_ONE FROM I_DONT_EXIST",
|
|
)
|
|
|
|
def _test_alter_disconnect(self, orig_error, evt_value):
|
|
engine = engines.testing_engine()
|
|
|
|
@event.listens_for(engine, "handle_error")
|
|
def evt(ctx):
|
|
ctx.is_disconnect = evt_value
|
|
|
|
with patch.object(
|
|
engine.dialect, "is_disconnect", Mock(return_value=orig_error)
|
|
):
|
|
|
|
with engine.connect() as c:
|
|
try:
|
|
c.execute("SELECT x FROM nonexistent")
|
|
assert False
|
|
except tsa.exc.StatementError as st:
|
|
eq_(st.connection_invalidated, evt_value)
|
|
|
|
def test_alter_disconnect_to_true(self):
|
|
self._test_alter_disconnect(False, True)
|
|
self._test_alter_disconnect(True, True)
|
|
|
|
def test_alter_disconnect_to_false(self):
|
|
self._test_alter_disconnect(True, False)
|
|
self._test_alter_disconnect(False, False)
|
|
|
|
@testing.requires.independent_connections
|
|
def _test_alter_invalidate_pool_to_false(self, set_to_false):
|
|
orig_error = True
|
|
|
|
engine = engines.testing_engine()
|
|
|
|
@event.listens_for(engine, "handle_error")
|
|
def evt(ctx):
|
|
if set_to_false:
|
|
ctx.invalidate_pool_on_disconnect = False
|
|
|
|
c1, c2, c3 = (
|
|
engine.pool.connect(),
|
|
engine.pool.connect(),
|
|
engine.pool.connect(),
|
|
)
|
|
crecs = [conn._connection_record for conn in (c1, c2, c3)]
|
|
c1.close()
|
|
c2.close()
|
|
c3.close()
|
|
|
|
with patch.object(
|
|
engine.dialect, "is_disconnect", Mock(return_value=orig_error)
|
|
):
|
|
|
|
with engine.connect() as c:
|
|
target_crec = c.connection._connection_record
|
|
try:
|
|
c.execute("SELECT x FROM nonexistent")
|
|
assert False
|
|
except tsa.exc.StatementError as st:
|
|
eq_(st.connection_invalidated, True)
|
|
|
|
for crec in crecs:
|
|
if crec is target_crec or not set_to_false:
|
|
is_not_(crec.connection, crec.get_connection())
|
|
else:
|
|
is_(crec.connection, crec.get_connection())
|
|
|
|
def test_alter_invalidate_pool_to_false(self):
|
|
self._test_alter_invalidate_pool_to_false(True)
|
|
|
|
def test_alter_invalidate_pool_stays_true(self):
|
|
self._test_alter_invalidate_pool_to_false(False)
|
|
|
|
def test_handle_error_event_connect_isolation_level(self):
|
|
engine = engines.testing_engine()
|
|
|
|
class MySpecialException(Exception):
|
|
pass
|
|
|
|
@event.listens_for(engine, "handle_error")
|
|
def handle_error(ctx):
|
|
raise MySpecialException("failed operation")
|
|
|
|
ProgrammingError = engine.dialect.dbapi.ProgrammingError
|
|
with engine.connect() as conn:
|
|
with patch.object(
|
|
conn.dialect,
|
|
"get_isolation_level",
|
|
Mock(side_effect=ProgrammingError("random error")),
|
|
):
|
|
assert_raises(MySpecialException, conn.get_isolation_level)
|
|
|
|
|
|
class HandleInvalidatedOnConnectTest(fixtures.TestBase):
|
|
__requires__ = ("sqlite",)
|
|
|
|
def setUp(self):
|
|
e = create_engine("sqlite://")
|
|
|
|
connection = Mock(get_server_version_info=Mock(return_value="5.0"))
|
|
|
|
def connect(*args, **kwargs):
|
|
return connection
|
|
|
|
dbapi = Mock(
|
|
sqlite_version_info=(99, 9, 9),
|
|
version_info=(99, 9, 9),
|
|
sqlite_version="99.9.9",
|
|
paramstyle="named",
|
|
connect=Mock(side_effect=connect),
|
|
)
|
|
|
|
sqlite3 = e.dialect.dbapi
|
|
dbapi.Error = (sqlite3.Error,)
|
|
dbapi.ProgrammingError = sqlite3.ProgrammingError
|
|
|
|
self.dbapi = dbapi
|
|
self.ProgrammingError = sqlite3.ProgrammingError
|
|
|
|
def test_wraps_connect_in_dbapi(self):
|
|
dbapi = self.dbapi
|
|
dbapi.connect = Mock(side_effect=self.ProgrammingError("random error"))
|
|
try:
|
|
create_engine("sqlite://", module=dbapi).connect()
|
|
assert False
|
|
except tsa.exc.DBAPIError as de:
|
|
assert not de.connection_invalidated
|
|
|
|
def test_handle_error_event_connect(self):
|
|
dbapi = self.dbapi
|
|
dbapi.connect = Mock(side_effect=self.ProgrammingError("random error"))
|
|
|
|
class MySpecialException(Exception):
|
|
pass
|
|
|
|
eng = create_engine("sqlite://", module=dbapi)
|
|
|
|
@event.listens_for(eng, "handle_error")
|
|
def handle_error(ctx):
|
|
assert ctx.engine is eng
|
|
assert ctx.connection is None
|
|
raise MySpecialException("failed operation")
|
|
|
|
assert_raises(MySpecialException, eng.connect)
|
|
|
|
def test_handle_error_event_revalidate(self):
|
|
dbapi = self.dbapi
|
|
|
|
class MySpecialException(Exception):
|
|
pass
|
|
|
|
eng = create_engine("sqlite://", module=dbapi, _initialize=False)
|
|
|
|
@event.listens_for(eng, "handle_error")
|
|
def handle_error(ctx):
|
|
assert ctx.engine is eng
|
|
assert ctx.connection is conn
|
|
assert isinstance(
|
|
ctx.sqlalchemy_exception, tsa.exc.ProgrammingError
|
|
)
|
|
raise MySpecialException("failed operation")
|
|
|
|
conn = eng.connect()
|
|
conn.invalidate()
|
|
|
|
dbapi.connect = Mock(side_effect=self.ProgrammingError("random error"))
|
|
|
|
assert_raises(MySpecialException, getattr, conn, "connection")
|
|
|
|
def test_handle_error_event_implicit_revalidate(self):
|
|
dbapi = self.dbapi
|
|
|
|
class MySpecialException(Exception):
|
|
pass
|
|
|
|
eng = create_engine("sqlite://", module=dbapi, _initialize=False)
|
|
|
|
@event.listens_for(eng, "handle_error")
|
|
def handle_error(ctx):
|
|
assert ctx.engine is eng
|
|
assert ctx.connection is conn
|
|
assert isinstance(
|
|
ctx.sqlalchemy_exception, tsa.exc.ProgrammingError
|
|
)
|
|
raise MySpecialException("failed operation")
|
|
|
|
conn = eng.connect()
|
|
conn.invalidate()
|
|
|
|
dbapi.connect = Mock(side_effect=self.ProgrammingError("random error"))
|
|
|
|
assert_raises(MySpecialException, conn.execute, select([1]))
|
|
|
|
def test_handle_error_custom_connect(self):
|
|
dbapi = self.dbapi
|
|
|
|
class MySpecialException(Exception):
|
|
pass
|
|
|
|
def custom_connect():
|
|
raise self.ProgrammingError("random error")
|
|
|
|
eng = create_engine("sqlite://", module=dbapi, creator=custom_connect)
|
|
|
|
@event.listens_for(eng, "handle_error")
|
|
def handle_error(ctx):
|
|
assert ctx.engine is eng
|
|
assert ctx.connection is None
|
|
raise MySpecialException("failed operation")
|
|
|
|
assert_raises(MySpecialException, eng.connect)
|
|
|
|
def test_handle_error_event_connect_invalidate_flag(self):
|
|
dbapi = self.dbapi
|
|
dbapi.connect = Mock(
|
|
side_effect=self.ProgrammingError(
|
|
"Cannot operate on a closed database."
|
|
)
|
|
)
|
|
|
|
class MySpecialException(Exception):
|
|
pass
|
|
|
|
eng = create_engine("sqlite://", module=dbapi)
|
|
|
|
@event.listens_for(eng, "handle_error")
|
|
def handle_error(ctx):
|
|
assert ctx.is_disconnect
|
|
ctx.is_disconnect = False
|
|
|
|
try:
|
|
eng.connect()
|
|
assert False
|
|
except tsa.exc.DBAPIError as de:
|
|
assert not de.connection_invalidated
|
|
|
|
def test_cant_connect_stay_invalidated(self):
|
|
class MySpecialException(Exception):
|
|
pass
|
|
|
|
eng = create_engine("sqlite://")
|
|
|
|
@event.listens_for(eng, "handle_error")
|
|
def handle_error(ctx):
|
|
assert ctx.is_disconnect
|
|
|
|
conn = eng.connect()
|
|
|
|
conn.invalidate()
|
|
|
|
eng.pool._creator = Mock(
|
|
side_effect=self.ProgrammingError(
|
|
"Cannot operate on a closed database."
|
|
)
|
|
)
|
|
|
|
try:
|
|
conn.connection
|
|
assert False
|
|
except tsa.exc.DBAPIError:
|
|
assert conn.invalidated
|
|
|
|
def test_dont_touch_non_dbapi_exception_on_connect(self):
|
|
dbapi = self.dbapi
|
|
dbapi.connect = Mock(side_effect=TypeError("I'm not a DBAPI error"))
|
|
|
|
e = create_engine("sqlite://", module=dbapi)
|
|
e.dialect.is_disconnect = is_disconnect = Mock()
|
|
assert_raises_message(TypeError, "I'm not a DBAPI error", e.connect)
|
|
eq_(is_disconnect.call_count, 0)
|
|
|
|
def test_ensure_dialect_does_is_disconnect_no_conn(self):
|
|
"""test that is_disconnect() doesn't choke if no connection,
|
|
cursor given."""
|
|
dialect = testing.db.dialect
|
|
dbapi = dialect.dbapi
|
|
assert not dialect.is_disconnect(
|
|
dbapi.OperationalError("test"), None, None
|
|
)
|
|
|
|
def test_invalidate_on_connect(self):
|
|
"""test that is_disconnect() is called during connect.
|
|
|
|
interpretation of connection failures are not supported by
|
|
every backend.
|
|
|
|
"""
|
|
dbapi = self.dbapi
|
|
dbapi.connect = Mock(
|
|
side_effect=self.ProgrammingError(
|
|
"Cannot operate on a closed database."
|
|
)
|
|
)
|
|
e = create_engine("sqlite://", module=dbapi)
|
|
try:
|
|
e.connect()
|
|
assert False
|
|
except tsa.exc.DBAPIError as de:
|
|
assert de.connection_invalidated
|
|
|
|
|
|
class DialectEventTest(fixtures.TestBase):
|
|
@contextmanager
|
|
def _run_test(self, retval):
|
|
m1 = Mock()
|
|
|
|
m1.do_execute.return_value = retval
|
|
m1.do_executemany.return_value = retval
|
|
m1.do_execute_no_params.return_value = retval
|
|
e = engines.testing_engine(options={"_initialize": False})
|
|
|
|
event.listen(e, "do_execute", m1.do_execute)
|
|
event.listen(e, "do_executemany", m1.do_executemany)
|
|
event.listen(e, "do_execute_no_params", m1.do_execute_no_params)
|
|
|
|
e.dialect.do_execute = m1.real_do_execute
|
|
e.dialect.do_executemany = m1.real_do_executemany
|
|
e.dialect.do_execute_no_params = m1.real_do_execute_no_params
|
|
|
|
def mock_the_cursor(cursor, *arg):
|
|
arg[-1].get_result_proxy = Mock(return_value=Mock(context=arg[-1]))
|
|
return retval
|
|
|
|
m1.real_do_execute.side_effect = (
|
|
m1.do_execute.side_effect
|
|
) = mock_the_cursor
|
|
m1.real_do_executemany.side_effect = (
|
|
m1.do_executemany.side_effect
|
|
) = mock_the_cursor
|
|
m1.real_do_execute_no_params.side_effect = (
|
|
m1.do_execute_no_params.side_effect
|
|
) = mock_the_cursor
|
|
|
|
with e.connect() as conn:
|
|
yield conn, m1
|
|
|
|
def _assert(self, retval, m1, m2, mock_calls):
|
|
eq_(m1.mock_calls, mock_calls)
|
|
if retval:
|
|
eq_(m2.mock_calls, [])
|
|
else:
|
|
eq_(m2.mock_calls, mock_calls)
|
|
|
|
def _test_do_execute(self, retval):
|
|
with self._run_test(retval) as (conn, m1):
|
|
result = conn.execute("insert into table foo", {"foo": "bar"})
|
|
self._assert(
|
|
retval,
|
|
m1.do_execute,
|
|
m1.real_do_execute,
|
|
[
|
|
call(
|
|
result.context.cursor,
|
|
"insert into table foo",
|
|
{"foo": "bar"},
|
|
result.context,
|
|
)
|
|
],
|
|
)
|
|
|
|
def _test_do_executemany(self, retval):
|
|
with self._run_test(retval) as (conn, m1):
|
|
result = conn.execute(
|
|
"insert into table foo", [{"foo": "bar"}, {"foo": "bar"}]
|
|
)
|
|
self._assert(
|
|
retval,
|
|
m1.do_executemany,
|
|
m1.real_do_executemany,
|
|
[
|
|
call(
|
|
result.context.cursor,
|
|
"insert into table foo",
|
|
[{"foo": "bar"}, {"foo": "bar"}],
|
|
result.context,
|
|
)
|
|
],
|
|
)
|
|
|
|
def _test_do_execute_no_params(self, retval):
|
|
with self._run_test(retval) as (conn, m1):
|
|
result = conn.execution_options(no_parameters=True).execute(
|
|
"insert into table foo"
|
|
)
|
|
self._assert(
|
|
retval,
|
|
m1.do_execute_no_params,
|
|
m1.real_do_execute_no_params,
|
|
[
|
|
call(
|
|
result.context.cursor,
|
|
"insert into table foo",
|
|
result.context,
|
|
)
|
|
],
|
|
)
|
|
|
|
def _test_cursor_execute(self, retval):
|
|
with self._run_test(retval) as (conn, m1):
|
|
dialect = conn.dialect
|
|
|
|
stmt = "insert into table foo"
|
|
params = {"foo": "bar"}
|
|
ctx = dialect.execution_ctx_cls._init_statement(
|
|
dialect, conn, conn.connection, stmt, [params]
|
|
)
|
|
|
|
conn._cursor_execute(ctx.cursor, stmt, params, ctx)
|
|
|
|
self._assert(
|
|
retval,
|
|
m1.do_execute,
|
|
m1.real_do_execute,
|
|
[call(ctx.cursor, "insert into table foo", {"foo": "bar"}, ctx)],
|
|
)
|
|
|
|
def test_do_execute_w_replace(self):
|
|
self._test_do_execute(True)
|
|
|
|
def test_do_execute_wo_replace(self):
|
|
self._test_do_execute(False)
|
|
|
|
def test_do_executemany_w_replace(self):
|
|
self._test_do_executemany(True)
|
|
|
|
def test_do_executemany_wo_replace(self):
|
|
self._test_do_executemany(False)
|
|
|
|
def test_do_execute_no_params_w_replace(self):
|
|
self._test_do_execute_no_params(True)
|
|
|
|
def test_do_execute_no_params_wo_replace(self):
|
|
self._test_do_execute_no_params(False)
|
|
|
|
def test_cursor_execute_w_replace(self):
|
|
self._test_cursor_execute(True)
|
|
|
|
def test_cursor_execute_wo_replace(self):
|
|
self._test_cursor_execute(False)
|
|
|
|
def test_connect_replace_params(self):
|
|
e = engines.testing_engine(options={"_initialize": False})
|
|
|
|
@event.listens_for(e, "do_connect")
|
|
def evt(dialect, conn_rec, cargs, cparams):
|
|
cargs[:] = ["foo", "hoho"]
|
|
cparams.clear()
|
|
cparams["bar"] = "bat"
|
|
conn_rec.info["boom"] = "bap"
|
|
|
|
m1 = Mock()
|
|
e.dialect.connect = m1.real_connect
|
|
|
|
with e.connect() as conn:
|
|
eq_(m1.mock_calls, [call.real_connect("foo", "hoho", bar="bat")])
|
|
eq_(conn.info["boom"], "bap")
|
|
|
|
def test_connect_do_connect(self):
|
|
e = engines.testing_engine(options={"_initialize": False})
|
|
|
|
m1 = Mock()
|
|
|
|
@event.listens_for(e, "do_connect")
|
|
def evt1(dialect, conn_rec, cargs, cparams):
|
|
cargs[:] = ["foo", "hoho"]
|
|
cparams.clear()
|
|
cparams["bar"] = "bat"
|
|
conn_rec.info["boom"] = "one"
|
|
|
|
@event.listens_for(e, "do_connect")
|
|
def evt2(dialect, conn_rec, cargs, cparams):
|
|
conn_rec.info["bap"] = "two"
|
|
return m1.our_connect(cargs, cparams)
|
|
|
|
with e.connect() as conn:
|
|
# called with args
|
|
eq_(
|
|
m1.mock_calls,
|
|
[call.our_connect(["foo", "hoho"], {"bar": "bat"})],
|
|
)
|
|
|
|
eq_(conn.info["boom"], "one")
|
|
eq_(conn.info["bap"], "two")
|
|
|
|
# returned our mock connection
|
|
is_(conn.connection.connection, m1.our_connect())
|
|
|
|
def test_connect_do_connect_info_there_after_recycle(self):
|
|
# test that info is maintained after the do_connect()
|
|
# event for a soft invalidation.
|
|
|
|
e = engines.testing_engine(options={"_initialize": False})
|
|
|
|
@event.listens_for(e, "do_connect")
|
|
def evt1(dialect, conn_rec, cargs, cparams):
|
|
conn_rec.info["boom"] = "one"
|
|
|
|
conn = e.connect()
|
|
eq_(conn.info["boom"], "one")
|
|
|
|
conn.connection.invalidate(soft=True)
|
|
conn.close()
|
|
conn = e.connect()
|
|
eq_(conn.info["boom"], "one")
|
|
|
|
def test_connect_do_connect_info_there_after_invalidate(self):
|
|
# test that info is maintained after the do_connect()
|
|
# event for a hard invalidation.
|
|
|
|
e = engines.testing_engine(options={"_initialize": False})
|
|
|
|
@event.listens_for(e, "do_connect")
|
|
def evt1(dialect, conn_rec, cargs, cparams):
|
|
assert not conn_rec.info
|
|
conn_rec.info["boom"] = "one"
|
|
|
|
conn = e.connect()
|
|
eq_(conn.info["boom"], "one")
|
|
|
|
conn.connection.invalidate()
|
|
conn = e.connect()
|
|
eq_(conn.info["boom"], "one")
|
|
|
|
|
|
class AutocommitTextTest(fixtures.TestBase):
|
|
__backend__ = True
|
|
|
|
def _test_keyword(self, keyword, expected=True):
|
|
dbapi = Mock(
|
|
connect=Mock(
|
|
return_value=Mock(
|
|
cursor=Mock(return_value=Mock(description=()))
|
|
)
|
|
)
|
|
)
|
|
engine = engines.testing_engine(
|
|
options={"_initialize": False, "pool_reset_on_return": None}
|
|
)
|
|
engine.dialect.dbapi = dbapi
|
|
engine.execute("%s something table something" % keyword)
|
|
if expected:
|
|
eq_(dbapi.connect().mock_calls, [call.cursor(), call.commit()])
|
|
else:
|
|
eq_(dbapi.connect().mock_calls, [call.cursor()])
|
|
|
|
def test_update(self):
|
|
self._test_keyword("UPDATE")
|
|
|
|
def test_insert(self):
|
|
self._test_keyword("INSERT")
|
|
|
|
def test_delete(self):
|
|
self._test_keyword("DELETE")
|
|
|
|
def test_alter(self):
|
|
self._test_keyword("ALTER TABLE")
|
|
|
|
def test_create(self):
|
|
self._test_keyword("CREATE TABLE foobar")
|
|
|
|
def test_drop(self):
|
|
self._test_keyword("DROP TABLE foobar")
|
|
|
|
def test_select(self):
|
|
self._test_keyword("SELECT foo FROM table", False)
|