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|
#! coding:utf-8
"""Tests exceptions and DB-API exception wrapping."""
from sqlalchemy import exc as sa_exceptions
from sqlalchemy.engine import default
from sqlalchemy.testing import eq_
from sqlalchemy.testing import fixtures
from sqlalchemy.util import compat
from sqlalchemy.util import u
class Error(Exception):
pass
class DatabaseError(Error):
pass
class OperationalError(DatabaseError):
pass
class ProgrammingError(DatabaseError):
def __str__(self):
return "<%s>" % self.bogus
class OutOfSpec(DatabaseError):
pass
# exception with a totally different name...
class WrongNameError(DatabaseError):
pass
# but they're going to call it their "IntegrityError"
IntegrityError = WrongNameError
# and they're going to subclass it!
class SpecificIntegrityError(WrongNameError):
pass
class WrapTest(fixtures.TestBase):
def _translating_dialect_fixture(self):
d = default.DefaultDialect()
d.dbapi_exception_translation_map = {
"WrongNameError": "IntegrityError"
}
return d
def test_db_error_normal(self):
try:
raise sa_exceptions.DBAPIError.instance(
"", [], OperationalError(), DatabaseError
)
except sa_exceptions.DBAPIError:
self.assert_(True)
def test_tostring(self):
try:
raise sa_exceptions.DBAPIError.instance(
"this is a message", None, OperationalError(), DatabaseError
)
except sa_exceptions.DBAPIError as exc:
eq_(
str(exc),
"(test.base.test_except.OperationalError) "
"[SQL: 'this is a message'] (Background on this error at: "
"http://sqlalche.me/e/e3q8)",
)
def test_statement_error_no_code(self):
try:
raise sa_exceptions.DBAPIError.instance(
"select * from table",
[{"x": 1}],
sa_exceptions.InvalidRequestError("hello"),
DatabaseError,
)
except sa_exceptions.StatementError as err:
eq_(
str(err),
"(sqlalchemy.exc.InvalidRequestError) hello "
"[SQL: 'select * from table'] [parameters: [{'x': 1}]]",
)
eq_(err.args, ("(sqlalchemy.exc.InvalidRequestError) hello",))
def test_statement_error_w_code(self):
try:
raise sa_exceptions.DBAPIError.instance(
"select * from table",
[{"x": 1}],
sa_exceptions.InvalidRequestError("hello", code="abcd"),
DatabaseError,
)
except sa_exceptions.StatementError as err:
eq_(
str(err),
"(sqlalchemy.exc.InvalidRequestError) hello "
"[SQL: 'select * from table'] [parameters: [{'x': 1}]] "
"(Background on this error at: http://sqlalche.me/e/abcd)",
)
eq_(err.args, ("(sqlalchemy.exc.InvalidRequestError) hello",))
def test_wrap_multi_arg(self):
# this is not supported by the API but oslo_db is doing it
orig = sa_exceptions.DBAPIError(False, False, False)
orig.args = [2006, "Test raise operational error"]
eq_(
str(orig),
"(2006, 'Test raise operational error') "
"(Background on this error at: http://sqlalche.me/e/dbapi)",
)
def test_wrap_unicode_arg(self):
# this is not supported by the API but oslo_db is doing it
orig = sa_exceptions.DBAPIError(False, False, False)
orig.args = [u("méil")]
eq_(
compat.text_type(orig),
compat.u(
"méil (Background on this error at: "
"http://sqlalche.me/e/dbapi)"
),
)
eq_(orig.args, (u("méil"),))
def test_tostring_large_dict(self):
try:
raise sa_exceptions.DBAPIError.instance(
"this is a message",
{
"a": 1,
"b": 2,
"c": 3,
"d": 4,
"e": 5,
"f": 6,
"g": 7,
"h": 8,
"i": 9,
"j": 10,
"k": 11,
},
OperationalError(),
DatabaseError,
)
except sa_exceptions.DBAPIError as exc:
assert str(exc).startswith(
"(test.base.test_except.OperationalError) "
"[SQL: 'this is a message'] [parameters: {"
)
def test_tostring_large_list(self):
try:
raise sa_exceptions.DBAPIError.instance(
"this is a message",
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11],
OperationalError(),
DatabaseError,
)
except sa_exceptions.DBAPIError as exc:
assert str(exc).startswith(
"(test.base.test_except.OperationalError) "
"[SQL: 'this is a message'] [parameters: "
"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]]"
)
def test_tostring_large_executemany(self):
try:
raise sa_exceptions.DBAPIError.instance(
"this is a message",
[
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
],
OperationalError("sql error"),
DatabaseError,
)
except sa_exceptions.DBAPIError as exc:
eq_(
str(exc),
"(test.base.test_except.OperationalError) sql error "
"[SQL: 'this is a message'] [parameters: [{1: 1}, "
"{1: 1}, {1: 1}, {1: 1}, {1: 1}, {1: 1}, {1: 1}, {1: "
"1}, {1: 1}, {1: 1}]] (Background on this error at: "
"http://sqlalche.me/e/e3q8)",
)
eq_(
exc.args,
("(test.base.test_except.OperationalError) sql error",),
)
try:
raise sa_exceptions.DBAPIError.instance(
"this is a message",
[
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
{1: 1},
],
OperationalError(),
DatabaseError,
)
except sa_exceptions.DBAPIError as exc:
eq_(
str(exc),
"(test.base.test_except.OperationalError) "
"[SQL: 'this is a message'] [parameters: [{1: 1}, "
"{1: 1}, {1: 1}, {1: 1}, {1: 1}, {1: 1}, "
"{1: 1}, {1: 1} ... displaying 10 of 11 total "
"bound parameter sets ... {1: 1}, {1: 1}]] "
"(Background on this error at: http://sqlalche.me/e/e3q8)",
)
try:
raise sa_exceptions.DBAPIError.instance(
"this is a message",
[(1,), (1,), (1,), (1,), (1,), (1,), (1,), (1,), (1,), (1,)],
OperationalError(),
DatabaseError,
)
except sa_exceptions.DBAPIError as exc:
eq_(
str(exc),
"(test.base.test_except.OperationalError) "
"[SQL: 'this is a message'] [parameters: [(1,), "
"(1,), (1,), (1,), (1,), (1,), (1,), (1,), (1,), (1,)]] "
"(Background on this error at: http://sqlalche.me/e/e3q8)",
)
try:
raise sa_exceptions.DBAPIError.instance(
"this is a message",
[
(1,),
(1,),
(1,),
(1,),
(1,),
(1,),
(1,),
(1,),
(1,),
(1,),
(1,),
],
OperationalError(),
DatabaseError,
)
except sa_exceptions.DBAPIError as exc:
eq_(
str(exc),
"(test.base.test_except.OperationalError) "
"[SQL: 'this is a message'] [parameters: [(1,), "
"(1,), (1,), (1,), (1,), (1,), (1,), (1,) "
"... displaying 10 of 11 total bound "
"parameter sets ... (1,), (1,)]] "
"(Background on this error at: http://sqlalche.me/e/e3q8)",
)
def test_db_error_busted_dbapi(self):
try:
raise sa_exceptions.DBAPIError.instance(
"", [], ProgrammingError(), DatabaseError
)
except sa_exceptions.DBAPIError as e:
self.assert_(True)
self.assert_("Error in str() of DB-API" in e.args[0])
def test_db_error_noncompliant_dbapi(self):
try:
raise sa_exceptions.DBAPIError.instance(
"", [], OutOfSpec(), DatabaseError
)
except sa_exceptions.DBAPIError as e:
# OutOfSpec subclasses DatabaseError
self.assert_(e.__class__ is sa_exceptions.DatabaseError)
except OutOfSpec:
self.assert_(False)
try:
raise sa_exceptions.DBAPIError.instance(
"", [], sa_exceptions.ArgumentError(), DatabaseError
)
except sa_exceptions.DBAPIError as e:
self.assert_(e.__class__ is sa_exceptions.DBAPIError)
except sa_exceptions.ArgumentError:
self.assert_(False)
dialect = self._translating_dialect_fixture()
try:
raise sa_exceptions.DBAPIError.instance(
"",
[],
sa_exceptions.ArgumentError(),
DatabaseError,
dialect=dialect,
)
except sa_exceptions.DBAPIError as e:
self.assert_(e.__class__ is sa_exceptions.DBAPIError)
except sa_exceptions.ArgumentError:
self.assert_(False)
def test_db_error_dbapi_uses_wrong_names(self):
dialect = self._translating_dialect_fixture()
try:
raise sa_exceptions.DBAPIError.instance(
"", [], IntegrityError(), DatabaseError, dialect=dialect
)
except sa_exceptions.DBAPIError as e:
self.assert_(e.__class__ is sa_exceptions.IntegrityError)
try:
raise sa_exceptions.DBAPIError.instance(
"",
[],
SpecificIntegrityError(),
DatabaseError,
dialect=dialect,
)
except sa_exceptions.DBAPIError as e:
self.assert_(e.__class__ is sa_exceptions.IntegrityError)
try:
raise sa_exceptions.DBAPIError.instance(
"", [], SpecificIntegrityError(), DatabaseError
)
except sa_exceptions.DBAPIError as e:
# doesn't work without a dialect
self.assert_(e.__class__ is not sa_exceptions.IntegrityError)
def test_db_error_keyboard_interrupt(self):
try:
raise sa_exceptions.DBAPIError.instance(
"", [], KeyboardInterrupt(), DatabaseError
)
except sa_exceptions.DBAPIError:
self.assert_(False)
except KeyboardInterrupt:
self.assert_(True)
def test_db_error_system_exit(self):
try:
raise sa_exceptions.DBAPIError.instance(
"", [], SystemExit(), DatabaseError
)
except sa_exceptions.DBAPIError:
self.assert_(False)
except SystemExit:
self.assert_(True)
|
