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from __future__ import unicode_literals
"""Benchmark for SQLAlchemy.
An adaptation of Robert Brewers' ZooMark speed tests. """
import datetime
from sqlalchemy import Table, Column, Integer, Unicode, Date, \
DateTime, Time, Float, Sequence, ForeignKey, \
select, and_, func
from sqlalchemy.orm import mapper
from sqlalchemy.testing import replay_fixture
ITERATIONS = 1
Zoo = Animal = session = None
class ZooMarkTest(replay_fixture.ReplayFixtureTest):
"""Runs the ZooMark and squawks if method counts vary from the norm.
"""
__requires__ = 'cpython',
__only_on__ = 'postgresql+psycopg2'
def _run_steps(self, ctx):
with ctx():
self._baseline_1a_populate()
with ctx():
self._baseline_2_insert()
with ctx():
self._baseline_3_properties()
with ctx():
self._baseline_4_expressions()
with ctx():
self._baseline_5_aggregates()
with ctx():
self._baseline_6_editing()
def setup_engine(self):
self._baseline_1_create_tables()
def teardown_engine(self):
self._baseline_7_drop()
def _baseline_1_create_tables(self):
zoo = Table(
'Zoo',
self.metadata,
Column('ID', Integer, Sequence('zoo_id_seq'),
primary_key=True, index=True),
Column('Name', Unicode(255)),
Column('Founded', Date),
Column('Opens', Time),
Column('LastEscape', DateTime),
Column('Admission', Float),
)
animal = Table(
'Animal',
self.metadata,
Column('ID', Integer, Sequence('animal_id_seq'),
primary_key=True),
Column('ZooID', Integer, ForeignKey('Zoo.ID'), index=True),
Column('Name', Unicode(100)),
Column('Species', Unicode(100)),
Column('Legs', Integer, default=4),
Column('LastEscape', DateTime),
Column('Lifespan', Float(4)),
Column('MotherID', Integer, ForeignKey('Animal.ID')),
Column('PreferredFoodID', Integer),
Column('AlternateFoodID', Integer),
)
self.metadata.create_all()
global Zoo, Animal
class Zoo(object):
def __init__(self, **kwargs):
for k, v in kwargs.items():
setattr(self, k, v)
class Animal(object):
def __init__(self, **kwargs):
for k, v in kwargs.items():
setattr(self, k, v)
mapper(Zoo, zoo)
mapper(Animal, animal)
def _baseline_1a_populate(self):
wap = Zoo(
Name='Wild Animal Park', Founded=datetime.date(
2000, 1, 1), Opens=datetime.time(
8, 15, 59), LastEscape=datetime.datetime(
2004, 7, 29, 5, 6, 7, ), Admission=4.95)
self.session.add(wap)
sdz = Zoo(
Name='San Diego Zoo', Founded=datetime.date(
1835, 9, 13), Opens=datetime.time(
9, 0, 0), Admission=0)
self.session.add(sdz)
bio = Zoo(Name='Montr\xe9al Biod\xf4me',
Founded=datetime.date(1992, 6, 19),
Opens=datetime.time(9, 0, 0), Admission=11.75)
self.session.add(bio)
seaworld = Zoo(Name='Sea_World', Admission=60)
self.session.add(seaworld)
# Let's add a crazy futuristic Zoo to test large date values.
lp = Zoo(Name='Luna Park', Founded=datetime.date(2072, 7, 17),
Opens=datetime.time(0, 0, 0), Admission=134.95)
self.session.add(lp)
# Animals
leopard = Animal(Species='Leopard', Lifespan=73.5)
self.session.add(leopard)
leopard.ZooID = wap.ID
leopard.LastEscape = \
datetime.datetime(2004, 12, 21, 8, 15, 0, 999907, )
self.session.add(Animal(Species='Lion', ZooID=wap.ID))
self.session.add(Animal(Species='Slug', Legs=1, Lifespan=.75))
self.session.add(Animal(Species='Tiger', ZooID=sdz.ID))
# Override Legs.default with itself just to make sure it works.
self.session.add(Animal(Species='Bear', Legs=4))
self.session.add(Animal(Species='Ostrich', Legs=2, Lifespan=103.2))
self.session.add(Animal(Species='Centipede', Legs=100))
self.session.add(Animal(Species='Emperor Penguin', Legs=2,
ZooID=seaworld.ID))
self.session.add(Animal(Species='Adelie Penguin', Legs=2,
ZooID=seaworld.ID))
self.session.add(Animal(Species='Millipede', Legs=1000000,
ZooID=sdz.ID))
# Add a mother and child to test relationships
bai_yun = Animal(Species='Ape', Nameu='Bai Yun', Legs=2)
self.session.add(bai_yun)
self.session.add(Animal(Species='Ape', Name='Hua Mei', Legs=2,
MotherID=bai_yun.ID))
self.session.commit()
def _baseline_2_insert(self):
for x in range(ITERATIONS):
self.session.add(Animal(Species='Tick', Name='Tick %d' % x,
Legs=8))
self.session.flush()
def _baseline_3_properties(self):
for x in range(ITERATIONS):
# Zoos
list(self.session.query(Zoo).filter(
Zoo.Name == 'Wild Animal Park'))
list(
self.session.query(Zoo).filter(
Zoo.Founded == datetime.date(
1835,
9,
13)))
list(
self.session.query(Zoo).filter(
Zoo.Name == 'Montr\xe9al Biod\xf4me'))
list(self.session.query(Zoo).filter(Zoo.Admission == float(60)))
# Animals
list(self.session.query(Animal).filter(
Animal.Species == 'Leopard'))
list(self.session.query(Animal).filter(
Animal.Species == 'Ostrich'))
list(self.session.query(Animal).filter(
Animal.Legs == 1000000))
list(self.session.query(Animal).filter(
Animal.Species == 'Tick'))
def _baseline_4_expressions(self):
for x in range(ITERATIONS):
assert len(list(self.session.query(Zoo))) == 5
assert len(list(self.session.query(Animal))) == ITERATIONS + 12
assert len(list(self.session.query(Animal).filter(Animal.Legs
== 4))) == 4
assert len(list(self.session.query(Animal).filter(Animal.Legs
== 2))) == 5
assert len(
list(
self.session.query(Animal).filter(
and_(
Animal.Legs >= 2,
Animal.Legs < 20)))) == ITERATIONS + 9
assert len(list(self.session.query(Animal).filter(Animal.Legs
> 10))) == 2
assert len(list(self.session.query(Animal).filter(Animal.Lifespan
> 70))) == 2
assert len(list(self.session.query(Animal).
filter(Animal.Species.like('L%')))) == 2
assert len(list(self.session.query(Animal).
filter(Animal.Species.like('%pede')))) == 2
assert len(list(self.session.query(Animal).filter(Animal.LastEscape
!= None))) == 1
assert len(
list(
self.session.query(Animal).filter(
Animal.LastEscape == None))) == ITERATIONS + 11
# In operator (containedby)
assert len(list(self.session.query(Animal).filter(
Animal.Species.like('%pede%')))) == 2
assert len(
list(
self.session.query(Animal). filter(
Animal.Species.in_(
('Lion', 'Tiger', 'Bear'))))) == 3
# Try In with cell references
class thing(object):
pass
pet, pet2 = thing(), thing()
pet.Name, pet2.Name = 'Slug', 'Ostrich'
assert len(list(self.session.query(Animal).
filter(Animal.Species.in_((pet.Name,
pet2.Name))))) == 2
# logic and other functions
name = 'Lion'
assert len(list(self.session.query(Animal).
filter(func.length(Animal.Species)
== len(name)))) == ITERATIONS + 3
assert len(list(self.session.query(Animal).
filter(Animal.Species.like('%i%'
)))) == ITERATIONS + 7
# Test now(), today(), year(), month(), day()
assert len(
list(
self.session.query(Zoo).filter(
and_(
Zoo.Founded != None,
Zoo.Founded < func.now())))) == 3
assert len(list(self.session.query(Animal).filter(Animal.LastEscape
== func.now()))) == 0
assert len(list(self.session.query(Animal).filter(
func.date_part('year', Animal.LastEscape) == 2004))) == 1
assert len(
list(
self.session.query(Animal). filter(
func.date_part(
'month',
Animal.LastEscape) == 12))) == 1
assert len(list(self.session.query(Animal).filter(
func.date_part('day', Animal.LastEscape) == 21))) == 1
def _baseline_5_aggregates(self):
Animal = self.metadata.tables['Animal']
Zoo = self.metadata.tables['Zoo']
# TODO: convert to ORM
engine = self.metadata.bind
for x in range(ITERATIONS):
# views
view = engine.execute(select([Animal.c.Legs])).fetchall()
legs = sorted([x[0] for x in view])
expected = {
'Leopard': 73.5,
'Slug': .75,
'Tiger': None,
'Lion': None,
'Bear': None,
'Ostrich': 103.2,
'Centipede': None,
'Emperor Penguin': None,
'Adelie Penguin': None,
'Millipede': None,
'Ape': None,
'Tick': None,
}
for species, lifespan in engine.execute(
select([Animal.c.Species, Animal.c.Lifespan])).fetchall():
assert lifespan == expected[species]
expected = ['Montr\xe9al Biod\xf4me', 'Wild Animal Park']
e = select([Zoo.c.Name],
and_(Zoo.c.Founded != None,
Zoo.c.Founded <= func.current_timestamp(),
Zoo.c.Founded >= datetime.date(1990,
1,
1)))
values = [val[0] for val in engine.execute(e).fetchall()]
assert set(values) == set(expected)
# distinct
legs = [
x[0]
for x in engine.execute(
select([Animal.c.Legs],
distinct=True)).fetchall()]
legs.sort()
def _baseline_6_editing(self):
for x in range(ITERATIONS):
# Edit
SDZ = self.session.query(Zoo).filter(Zoo.Name == 'San Diego Zoo'
).one()
SDZ.Name = 'The San Diego Zoo'
SDZ.Founded = datetime.date(1900, 1, 1)
SDZ.Opens = datetime.time(7, 30, 0)
SDZ.Admission = 35.00
# Test edits
SDZ = self.session.query(Zoo).filter(Zoo.Name
== 'The San Diego Zoo').one()
assert SDZ.Founded == datetime.date(1900, 1, 1), SDZ.Founded
# Change it back
SDZ.Name = 'San Diego Zoo'
SDZ.Founded = datetime.date(1835, 9, 13)
SDZ.Opens = datetime.time(9, 0, 0)
SDZ.Admission = 0
# Test re-edits
SDZ = self.session.query(Zoo).filter(Zoo.Name == 'San Diego Zoo'
).one()
assert SDZ.Founded == datetime.date(1835, 9, 13), \
SDZ.Founded
def _baseline_7_drop(self):
self.session.rollback()
self.metadata.drop_all()
|
