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"""MaxDB-specific tests."""
from sqlalchemy.test.testing import eq_
import StringIO, sys
from sqlalchemy import *
from sqlalchemy import exc, sql
from decimal import Decimal
from sqlalchemy.databases import maxdb
from sqlalchemy.test import *
# TODO
# - add "Database" test, a quick check for join behavior on different
# max versions
# - full max-specific reflection suite
# - datetime tests
# - the orm/query 'test_has' destabilizes the server- cover here
class ReflectionTest(TestBase, AssertsExecutionResults):
"""Extra reflection tests."""
__only_on__ = 'maxdb'
def _test_decimal(self, tabledef):
"""Checks a variety of FIXED usages.
This is primarily for SERIAL columns, which can be FIXED (scale-less)
or (SMALL)INT. Ensures that FIXED id columns are converted to
integers and that are assignable as such. Also exercises general
decimal assignment and selection behavior.
"""
meta = MetaData(testing.db)
try:
if isinstance(tabledef, basestring):
# run textual CREATE TABLE
testing.db.execute(tabledef)
else:
_t = tabledef.tometadata(meta)
_t.create()
t = Table('dectest', meta, autoload=True)
vals = [Decimal('2.2'), Decimal('23'), Decimal('2.4'), 25]
cols = ['d1','d2','n1','i1']
t.insert().execute(dict(zip(cols,vals)))
roundtrip = list(t.select().execute())
eq_(roundtrip, [tuple([1] + vals)])
t.insert().execute(dict(zip(['id'] + cols,
[2] + list(roundtrip[0][1:]))))
roundtrip2 = list(t.select(order_by=t.c.id).execute())
eq_(roundtrip2, [tuple([1] + vals),
tuple([2] + vals)])
finally:
try:
testing.db.execute("DROP TABLE dectest")
except exc.DatabaseError:
pass
def test_decimal_fixed_serial(self):
tabledef = """
CREATE TABLE dectest (
id FIXED(10) DEFAULT SERIAL PRIMARY KEY,
d1 FIXED(10,2),
d2 FIXED(12),
n1 NUMERIC(12,2),
i1 INTEGER)
"""
return self._test_decimal(tabledef)
def test_decimal_integer_serial(self):
tabledef = """
CREATE TABLE dectest (
id INTEGER DEFAULT SERIAL PRIMARY KEY,
d1 DECIMAL(10,2),
d2 DECIMAL(12),
n1 NUMERIC(12,2),
i1 INTEGER)
"""
return self._test_decimal(tabledef)
def test_decimal_implicit_serial(self):
tabledef = """
CREATE TABLE dectest (
id SERIAL PRIMARY KEY,
d1 FIXED(10,2),
d2 FIXED(12),
n1 NUMERIC(12,2),
i1 INTEGER)
"""
return self._test_decimal(tabledef)
def test_decimal_smallint_serial(self):
tabledef = """
CREATE TABLE dectest (
id SMALLINT DEFAULT SERIAL PRIMARY KEY,
d1 FIXED(10,2),
d2 FIXED(12),
n1 NUMERIC(12,2),
i1 INTEGER)
"""
return self._test_decimal(tabledef)
def test_decimal_sa_types_1(self):
tabledef = Table('dectest', MetaData(),
Column('id', Integer, primary_key=True),
Column('d1', DECIMAL(10, 2)),
Column('d2', DECIMAL(12)),
Column('n1', NUMERIC(12,2)),
Column('i1', Integer))
return self._test_decimal(tabledef)
def test_decimal_sa_types_2(self):
tabledef = Table('dectest', MetaData(),
Column('id', Integer, primary_key=True),
Column('d1', maxdb.MaxNumeric(10, 2)),
Column('d2', maxdb.MaxNumeric(12)),
Column('n1', maxdb.MaxNumeric(12,2)),
Column('i1', Integer))
return self._test_decimal(tabledef)
def test_decimal_sa_types_3(self):
tabledef = Table('dectest', MetaData(),
Column('id', Integer, primary_key=True),
Column('d1', maxdb.MaxNumeric(10, 2)),
Column('d2', maxdb.MaxNumeric),
Column('n1', maxdb.MaxNumeric(12,2)),
Column('i1', Integer))
return self._test_decimal(tabledef)
def test_assorted_type_aliases(self):
"""Ensures that aliased types are reflected properly."""
meta = MetaData(testing.db)
try:
testing.db.execute("""
CREATE TABLE assorted (
c1 INT,
c2 BINARY(2),
c3 DEC(4,2),
c4 DEC(4),
c5 DEC,
c6 DOUBLE PRECISION,
c7 NUMERIC(4,2),
c8 NUMERIC(4),
c9 NUMERIC,
c10 REAL(4),
c11 REAL,
c12 CHARACTER(2))
""")
table = Table('assorted', meta, autoload=True)
expected = [maxdb.MaxInteger,
maxdb.MaxNumeric,
maxdb.MaxNumeric,
maxdb.MaxNumeric,
maxdb.MaxNumeric,
maxdb.MaxFloat,
maxdb.MaxNumeric,
maxdb.MaxNumeric,
maxdb.MaxNumeric,
maxdb.MaxFloat,
maxdb.MaxFloat,
maxdb.MaxChar,]
for i, col in enumerate(table.columns):
self.assert_(isinstance(col.type, expected[i]))
finally:
try:
testing.db.execute("DROP TABLE assorted")
except exc.DatabaseError:
pass
class DBAPITest(TestBase, AssertsExecutionResults):
"""Asserts quirks in the native Python DB-API driver.
If any of these fail, that's good- the bug is fixed!
"""
__only_on__ = 'maxdb'
def test_dbapi_breaks_sequences(self):
con = testing.db.connect().connection
cr = con.cursor()
cr.execute('CREATE SEQUENCE busto START WITH 1 INCREMENT BY 1')
try:
vals = []
for i in xrange(3):
cr.execute('SELECT busto.NEXTVAL FROM DUAL')
vals.append(cr.first()[0])
# should be 1,2,3, but no...
self.assert_(vals != [1,2,3])
# ...we get:
self.assert_(vals == [2,4,6])
finally:
cr.execute('DROP SEQUENCE busto')
def test_dbapi_breaks_mod_binds(self):
con = testing.db.connect().connection
cr = con.cursor()
# OK
cr.execute('SELECT MOD(3, 2) FROM DUAL')
# Broken!
try:
cr.execute('SELECT MOD(3, ?) FROM DUAL', [2])
self.assert_(False)
except:
self.assert_(True)
# OK
cr.execute('SELECT MOD(?, 2) FROM DUAL', [3])
def test_dbapi_breaks_close(self):
dialect = testing.db.dialect
cargs, ckw = dialect.create_connect_args(testing.db.url)
# There doesn't seem to be a way to test for this as it occurs in
# regular usage- the warning doesn't seem to go through 'warnings'.
con = dialect.dbapi.connect(*cargs, **ckw)
con.close()
del con # <-- exception during __del__
# But this does the same thing.
con = dialect.dbapi.connect(*cargs, **ckw)
self.assert_(con.close == con.__del__)
con.close()
try:
con.close()
self.assert_(False)
except dialect.dbapi.DatabaseError:
self.assert_(True)
def test_modulo_operator(self):
st = str(select([sql.column('col') % 5]).compile(testing.db))
eq_(st, 'SELECT mod(col, ?) FROM DUAL')
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