Files
deb-python-cassandra-driver/cqlengine/tests/columns/test_container_columns.py
2013-06-27 14:22:47 -07:00

409 lines
14 KiB
Python

from datetime import datetime, timedelta
import json
from uuid import uuid4
from cqlengine import Model, ValidationError
from cqlengine import columns
from cqlengine.management import create_table, delete_table
from cqlengine.tests.base import BaseCassEngTestCase
class TestSetModel(Model):
partition = columns.UUID(primary_key=True, default=uuid4)
int_set = columns.Set(columns.Integer, required=False)
text_set = columns.Set(columns.Text, required=False)
class JsonTestColumn(columns.Column):
db_type = 'text'
def to_python(self, value):
if value is None: return
if isinstance(value, basestring):
return json.loads(value)
else:
return value
def to_database(self, value):
if value is None: return
return json.dumps(value)
class TestSetColumn(BaseCassEngTestCase):
@classmethod
def setUpClass(cls):
super(TestSetColumn, cls).setUpClass()
delete_table(TestSetModel)
create_table(TestSetModel)
@classmethod
def tearDownClass(cls):
super(TestSetColumn, cls).tearDownClass()
delete_table(TestSetModel)
def test_empty_set_initial(self):
"""
tests that sets are set() by default, should never be none
:return:
"""
m = TestSetModel.create()
m.int_set.add(5)
m.save()
def test_io_success(self):
""" Tests that a basic usage works as expected """
m1 = TestSetModel.create(int_set={1, 2}, text_set={'kai', 'andreas'})
m2 = TestSetModel.get(partition=m1.partition)
assert isinstance(m2.int_set, set)
assert isinstance(m2.text_set, set)
assert 1 in m2.int_set
assert 2 in m2.int_set
assert 'kai' in m2.text_set
assert 'andreas' in m2.text_set
def test_type_validation(self):
"""
Tests that attempting to use the wrong types will raise an exception
"""
with self.assertRaises(ValidationError):
TestSetModel.create(int_set={'string', True}, text_set={1, 3.0})
def test_partial_updates(self):
""" Tests that partial udpates work as expected """
m1 = TestSetModel.create(int_set={1, 2, 3, 4})
m1.int_set.add(5)
m1.int_set.remove(1)
assert m1.int_set == {2, 3, 4, 5}
m1.save()
m2 = TestSetModel.get(partition=m1.partition)
assert m2.int_set == {2, 3, 4, 5}
def test_partial_update_creation(self):
"""
Tests that proper update statements are created for a partial set update
:return:
"""
ctx = {}
col = columns.Set(columns.Integer, db_field="TEST")
statements = col.get_update_statement({1, 2, 3, 4}, {2, 3, 4, 5}, ctx)
assert len([v for v in ctx.values() if {1} == v.value]) == 1
assert len([v for v in ctx.values() if {5} == v.value]) == 1
assert len([s for s in statements if '"TEST" = "TEST" -' in s]) == 1
assert len([s for s in statements if '"TEST" = "TEST" +' in s]) == 1
def test_update_from_none(self):
""" Tests that updating an 'None' list creates a straight insert statement """
ctx = {}
col = columns.Set(columns.Integer, db_field="TEST")
statements = col.get_update_statement({1, 2, 3, 4}, None, ctx)
#only one variable /statement should be generated
assert len(ctx) == 1
assert len(statements) == 1
assert ctx.values()[0].value == {1, 2, 3, 4}
assert statements[0] == '"TEST" = :{}'.format(ctx.keys()[0])
def test_update_from_empty(self):
""" Tests that updating an empty list creates a straight insert statement """
ctx = {}
col = columns.Set(columns.Integer, db_field="TEST")
statements = col.get_update_statement({1, 2, 3, 4}, set(), ctx)
#only one variable /statement should be generated
assert len(ctx) == 1
assert len(statements) == 1
assert ctx.values()[0].value == {1, 2, 3, 4}
assert statements[0] == '"TEST" = :{}'.format(ctx.keys()[0])
def test_instantiation_with_column_class(self):
"""
Tests that columns instantiated with a column class work properly
and that the class is instantiated in the constructor
"""
column = columns.Set(columns.Text)
assert isinstance(column.value_col, columns.Text)
def test_instantiation_with_column_instance(self):
"""
Tests that columns instantiated with a column instance work properly
"""
column = columns.Set(columns.Text(min_length=100))
assert isinstance(column.value_col, columns.Text)
def test_to_python(self):
""" Tests that to_python of value column is called """
column = columns.Set(JsonTestColumn)
val = {1, 2, 3}
db_val = column.to_database(val)
assert db_val.value == {json.dumps(v) for v in val}
py_val = column.to_python(db_val.value)
assert py_val == val
class TestListModel(Model):
partition = columns.UUID(primary_key=True, default=uuid4)
int_list = columns.List(columns.Integer, required=False)
text_list = columns.List(columns.Text, required=False)
class TestListColumn(BaseCassEngTestCase):
@classmethod
def setUpClass(cls):
super(TestListColumn, cls).setUpClass()
delete_table(TestListModel)
create_table(TestListModel)
@classmethod
def tearDownClass(cls):
super(TestListColumn, cls).tearDownClass()
delete_table(TestListModel)
def test_initial(self):
tmp = TestListModel.create()
tmp.int_list.append(1)
def test_io_success(self):
""" Tests that a basic usage works as expected """
m1 = TestListModel.create(int_list=[1, 2], text_list=['kai', 'andreas'])
m2 = TestListModel.get(partition=m1.partition)
assert isinstance(m2.int_list, list)
assert isinstance(m2.text_list, list)
assert len(m2.int_list) == 2
assert len(m2.text_list) == 2
assert m2.int_list[0] == 1
assert m2.int_list[1] == 2
assert m2.text_list[0] == 'kai'
assert m2.text_list[1] == 'andreas'
def test_type_validation(self):
"""
Tests that attempting to use the wrong types will raise an exception
"""
with self.assertRaises(ValidationError):
TestListModel.create(int_list=['string', True], text_list=[1, 3.0])
def test_partial_updates(self):
""" Tests that partial udpates work as expected """
final = range(10)
initial = final[3:7]
m1 = TestListModel.create(int_list=initial)
m1.int_list = final
m1.save()
m2 = TestListModel.get(partition=m1.partition)
assert list(m2.int_list) == final
def test_partial_update_creation(self):
""" Tests that proper update statements are created for a partial list update """
final = range(10)
initial = final[3:7]
ctx = {}
col = columns.List(columns.Integer, db_field="TEST")
statements = col.get_update_statement(final, initial, ctx)
assert len([v for v in ctx.values() if [2, 1, 0] == v.value]) == 1
assert len([v for v in ctx.values() if [7, 8, 9] == v.value]) == 1
assert len([s for s in statements if '"TEST" = "TEST" +' in s]) == 1
assert len([s for s in statements if '+ "TEST"' in s]) == 1
def test_update_from_none(self):
""" Tests that updating an 'None' list creates a straight insert statement """
ctx = {}
col = columns.List(columns.Integer, db_field="TEST")
statements = col.get_update_statement([1, 2, 3], None, ctx)
#only one variable /statement should be generated
assert len(ctx) == 1
assert len(statements) == 1
assert ctx.values()[0].value == [1, 2, 3]
assert statements[0] == '"TEST" = :{}'.format(ctx.keys()[0])
def test_update_from_empty(self):
""" Tests that updating an empty list creates a straight insert statement """
ctx = {}
col = columns.List(columns.Integer, db_field="TEST")
statements = col.get_update_statement([1, 2, 3], [], ctx)
#only one variable /statement should be generated
assert len(ctx) == 1
assert len(statements) == 1
assert ctx.values()[0].value == [1, 2, 3]
assert statements[0] == '"TEST" = :{}'.format(ctx.keys()[0])
def test_instantiation_with_column_class(self):
"""
Tests that columns instantiated with a column class work properly
and that the class is instantiated in the constructor
"""
column = columns.List(columns.Text)
assert isinstance(column.value_col, columns.Text)
def test_instantiation_with_column_instance(self):
"""
Tests that columns instantiated with a column instance work properly
"""
column = columns.List(columns.Text(min_length=100))
assert isinstance(column.value_col, columns.Text)
def test_to_python(self):
""" Tests that to_python of value column is called """
column = columns.List(JsonTestColumn)
val = [1, 2, 3]
db_val = column.to_database(val)
assert db_val.value == [json.dumps(v) for v in val]
py_val = column.to_python(db_val.value)
assert py_val == val
class TestMapModel(Model):
partition = columns.UUID(primary_key=True, default=uuid4)
int_map = columns.Map(columns.Integer, columns.UUID, required=False)
text_map = columns.Map(columns.Text, columns.DateTime, required=False)
class TestMapColumn(BaseCassEngTestCase):
@classmethod
def setUpClass(cls):
super(TestMapColumn, cls).setUpClass()
delete_table(TestMapModel)
create_table(TestMapModel)
@classmethod
def tearDownClass(cls):
super(TestMapColumn, cls).tearDownClass()
delete_table(TestMapModel)
def test_empty_default(self):
tmp = TestMapModel.create()
tmp.int_map['blah'] = 1
def test_io_success(self):
""" Tests that a basic usage works as expected """
k1 = uuid4()
k2 = uuid4()
now = datetime.now()
then = now + timedelta(days=1)
m1 = TestMapModel.create(int_map={1: k1, 2: k2}, text_map={'now': now, 'then': then})
m2 = TestMapModel.get(partition=m1.partition)
assert isinstance(m2.int_map, dict)
assert isinstance(m2.text_map, dict)
assert 1 in m2.int_map
assert 2 in m2.int_map
assert m2.int_map[1] == k1
assert m2.int_map[2] == k2
assert 'now' in m2.text_map
assert 'then' in m2.text_map
assert (now - m2.text_map['now']).total_seconds() < 0.001
assert (then - m2.text_map['then']).total_seconds() < 0.001
def test_type_validation(self):
"""
Tests that attempting to use the wrong types will raise an exception
"""
with self.assertRaises(ValidationError):
TestMapModel.create(int_map={'key': 2, uuid4(): 'val'}, text_map={2: 5})
def test_partial_updates(self):
""" Tests that partial udpates work as expected """
now = datetime.now()
#derez it a bit
now = datetime(*now.timetuple()[:-3])
early = now - timedelta(minutes=30)
earlier = early - timedelta(minutes=30)
later = now + timedelta(minutes=30)
initial = {'now': now, 'early': earlier}
final = {'later': later, 'early': early}
m1 = TestMapModel.create(text_map=initial)
m1.text_map = final
m1.save()
m2 = TestMapModel.get(partition=m1.partition)
assert m2.text_map == final
def test_updates_from_none(self):
""" Tests that updates from None work as expected """
m = TestMapModel.create(int_map=None)
expected = {1: uuid4()}
m.int_map = expected
m.save()
m2 = TestMapModel.get(partition=m.partition)
assert m2.int_map == expected
def test_updates_to_none(self):
""" Tests that setting the field to None works as expected """
m = TestMapModel.create(int_map={1: uuid4()})
m.int_map = None
m.save()
m2 = TestMapModel.get(partition=m.partition)
assert m2.int_map is None
def test_instantiation_with_column_class(self):
"""
Tests that columns instantiated with a column class work properly
and that the class is instantiated in the constructor
"""
column = columns.Map(columns.Text, columns.Integer)
assert isinstance(column.key_col, columns.Text)
assert isinstance(column.value_col, columns.Integer)
def test_instantiation_with_column_instance(self):
"""
Tests that columns instantiated with a column instance work properly
"""
column = columns.Map(columns.Text(min_length=100), columns.Integer())
assert isinstance(column.key_col, columns.Text)
assert isinstance(column.value_col, columns.Integer)
def test_to_python(self):
""" Tests that to_python of value column is called """
column = columns.Map(JsonTestColumn, JsonTestColumn)
val = {1: 2, 3: 4, 5: 6}
db_val = column.to_database(val)
assert db_val.value == {json.dumps(k):json.dumps(v) for k,v in val.items()}
py_val = column.to_python(db_val.value)
assert py_val == val
# def test_partial_update_creation(self):
# """
# Tests that proper update statements are created for a partial list update
# :return:
# """
# final = range(10)
# initial = final[3:7]
#
# ctx = {}
# col = columns.List(columns.Integer, db_field="TEST")
# statements = col.get_update_statement(final, initial, ctx)
#
# assert len([v for v in ctx.values() if [0,1,2] == v.value]) == 1
# assert len([v for v in ctx.values() if [7,8,9] == v.value]) == 1
# assert len([s for s in statements if '"TEST" = "TEST" +' in s]) == 1
# assert len([s for s in statements if '+ "TEST"' in s]) == 1