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tests_pwiz.py
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tests_pwiz.py
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import unittest
from peewee import *
from pwiz import *
# test databases
sqlite_db = SqliteDatabase('tmp.db')
try:
import MySQLdb
mysql_db = MySQLDatabase('peewee_test')
except ImportError:
mysql_db = None
try:
import psycopg2
postgres_db = PostgresqlDatabase('peewee_test')
except ImportError:
postgres_db = None
DATABASES = (
('Sqlite', sqlite_db),
('MySQL', mysql_db),
('Postgres', postgres_db))
class BaseModel(Model):
class Meta:
database = sqlite_db
class ColTypes(BaseModel):
f1 = BigIntegerField()
f2 = BlobField()
f3 = BooleanField()
f4 = CharField()
f5 = DateField()
f6 = DateTimeField()
f7 = DecimalField()
f8 = DoubleField()
f9 = FloatField()
f10 = IntegerField()
f11 = PrimaryKeyField()
f12 = TextField()
f13 = TimeField()
class Nullable(BaseModel):
nullable_cf = CharField(null=True)
nullable_if = IntegerField(null=True)
class RelModel(BaseModel):
col_types = ForeignKeyField(ColTypes, related_name='foo')
col_types_nullable = ForeignKeyField(ColTypes, null=True)
class FKPK(BaseModel):
col_types = ForeignKeyField(ColTypes, primary_key=True)
DATABASES = (
(sqlite_db, 'sqlite'),
(mysql_db, 'mysql'),
(postgres_db, 'postgres'),
)
MODELS = (
ColTypes,
Nullable,
RelModel,
FKPK)
class TestPwiz(unittest.TestCase):
def setUp(self):
pass
def create_tables(self, db):
for model in MODELS:
model._meta.database = db
model.create_table(True)
def generative_test(fn):
def inner(self):
for database, db_name in DATABASES:
if database:
self.create_tables(database)
fn(self, database, db_name)
else:
print 'Skipping %s, driver not found' % db_name
return inner
def introspect(self, database, db_name):
db = get_introspector(db_name, database.database)
return introspect(db, None)
@generative_test
def test_col_types(self, database, db_name):
models, _, _, _ = self.introspect(database, db_name)
coltypes = models['coltypes']
expected = (
('coltypes', (
('f1', BigIntegerField, False),
('f2', BlobField, False),
('f3', (BooleanField, IntegerField), False),
('f4', CharField, False),
('f5', DateField, False),
('f6', DateTimeField, False),
('f7', DecimalField, False),
('f8', (DoubleField, FloatField), False),
('f9', FloatField, False),
('f10', IntegerField, False),
('f11', PrimaryKeyField, False),
('f12', TextField, False),
('f13', TimeField, False))),
('relmodel', (
('col_types_id', ForeignKeyField, False),
('col_types_nullable_id', ForeignKeyField, True))),
('nullable', (
('nullable_cf', CharField, True),
('nullable_if', IntegerField, True))),
('fkpk', (
('col_types_id', ForeignKeyField, False),))
)
for table, table_cols in expected:
data = models[table]
for field, klass, nullable in table_cols:
if not isinstance(klass, (list, tuple)):
klass = (klass,)
column_info = data[field]
self.assertTrue(
column_info.field_class in klass,
'[%s] %s %s not in %s' % (
db_name, table, column_info.field_class, klass))
self.assertEqual(column_info.nullable, nullable)
@generative_test
def test_foreign_keys(self, database, db_name):
_, _, table_fks, _ = self.introspect(database, db_name)
self.assertEqual(table_fks['coltypes'], [])
rm = table_fks['relmodel']
self.assertEqual(len(rm), 2)
fkpk = table_fks['fkpk']
self.assertEqual(len(fkpk), 1)
fkpk_fk = fkpk[0]
self.assertEqual(fkpk_fk.column, 'col_types_id')
self.assertEqual(fkpk_fk.table, 'coltypes')
self.assertEqual(fkpk_fk.pk, 'f11')
@generative_test
def test_table_names(self, database, db_name):
_, table_to_model, _, _ = self.introspect(database, db_name)
names = (
('coltypes', 'Coltypes'),
('nullable', 'Nullable'),
('relmodel', 'Relmodel'),
('fkpk', 'Fkpk'))
for k, v in names:
self.assertEqual(table_to_model[k], v)
@generative_test
def test_column_meta(self, database, db_name):
_, _, _, col_meta = self.introspect(database, db_name)
rm_meta = col_meta['relmodel']
self.assertEqual(rm_meta['col_types_id'], {
'db_column': "'col_types_id'",
'rel_model': 'Coltypes'})
self.assertEqual(rm_meta['col_types_nullable_id'], {
'db_column': "'col_types_nullable_id'",
'rel_model': 'Coltypes',
'null': 'True'})
fkpk_meta = col_meta['fkpk']
self.assertEqual(fkpk_meta['col_types_id'], {
'db_column': "'col_types_id'",
'rel_model': 'Coltypes',
'primary_key': True})