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test_types.py
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# Copyright 2013-2016 DataStax, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
try:
import unittest2 as unittest
except ImportError:
import unittest # noqa
from binascii import unhexlify
import datetime
import tempfile
import six
import time
import cassandra
from cassandra.cqltypes import (BooleanType, lookup_casstype_simple, lookup_casstype,
LongType, DecimalType, SetType, cql_typename,
CassandraType, UTF8Type, parse_casstype_args,
SimpleDateType, TimeType, ByteType, ShortType,
EmptyValue, _CassandraType, DateType, int64_pack)
from cassandra.encoder import cql_quote
from cassandra.protocol import (write_string, read_longstring, write_stringmap,
read_stringmap, read_inet, write_inet,
read_string, write_longstring)
from cassandra.query import named_tuple_factory
class TypeTests(unittest.TestCase):
def test_lookup_casstype_simple(self):
"""
Ensure lookup_casstype_simple returns the correct classes
"""
self.assertEqual(lookup_casstype_simple('AsciiType'), cassandra.cqltypes.AsciiType)
self.assertEqual(lookup_casstype_simple('LongType'), cassandra.cqltypes.LongType)
self.assertEqual(lookup_casstype_simple('BytesType'), cassandra.cqltypes.BytesType)
self.assertEqual(lookup_casstype_simple('BooleanType'), cassandra.cqltypes.BooleanType)
self.assertEqual(lookup_casstype_simple('CounterColumnType'), cassandra.cqltypes.CounterColumnType)
self.assertEqual(lookup_casstype_simple('DecimalType'), cassandra.cqltypes.DecimalType)
self.assertEqual(lookup_casstype_simple('DoubleType'), cassandra.cqltypes.DoubleType)
self.assertEqual(lookup_casstype_simple('FloatType'), cassandra.cqltypes.FloatType)
self.assertEqual(lookup_casstype_simple('InetAddressType'), cassandra.cqltypes.InetAddressType)
self.assertEqual(lookup_casstype_simple('Int32Type'), cassandra.cqltypes.Int32Type)
self.assertEqual(lookup_casstype_simple('UTF8Type'), cassandra.cqltypes.UTF8Type)
self.assertEqual(lookup_casstype_simple('DateType'), cassandra.cqltypes.DateType)
self.assertEqual(lookup_casstype_simple('SimpleDateType'), cassandra.cqltypes.SimpleDateType)
self.assertEqual(lookup_casstype_simple('ByteType'), cassandra.cqltypes.ByteType)
self.assertEqual(lookup_casstype_simple('ShortType'), cassandra.cqltypes.ShortType)
self.assertEqual(lookup_casstype_simple('TimeUUIDType'), cassandra.cqltypes.TimeUUIDType)
self.assertEqual(lookup_casstype_simple('TimeType'), cassandra.cqltypes.TimeType)
self.assertEqual(lookup_casstype_simple('UUIDType'), cassandra.cqltypes.UUIDType)
self.assertEqual(lookup_casstype_simple('IntegerType'), cassandra.cqltypes.IntegerType)
self.assertEqual(lookup_casstype_simple('MapType'), cassandra.cqltypes.MapType)
self.assertEqual(lookup_casstype_simple('ListType'), cassandra.cqltypes.ListType)
self.assertEqual(lookup_casstype_simple('SetType'), cassandra.cqltypes.SetType)
self.assertEqual(lookup_casstype_simple('CompositeType'), cassandra.cqltypes.CompositeType)
self.assertEqual(lookup_casstype_simple('ColumnToCollectionType'), cassandra.cqltypes.ColumnToCollectionType)
self.assertEqual(lookup_casstype_simple('ReversedType'), cassandra.cqltypes.ReversedType)
self.assertEqual(str(lookup_casstype_simple('unknown')), str(cassandra.cqltypes.mkUnrecognizedType('unknown')))
def test_lookup_casstype(self):
"""
Ensure lookup_casstype returns the correct classes
"""
self.assertEqual(lookup_casstype('AsciiType'), cassandra.cqltypes.AsciiType)
self.assertEqual(lookup_casstype('LongType'), cassandra.cqltypes.LongType)
self.assertEqual(lookup_casstype('BytesType'), cassandra.cqltypes.BytesType)
self.assertEqual(lookup_casstype('BooleanType'), cassandra.cqltypes.BooleanType)
self.assertEqual(lookup_casstype('CounterColumnType'), cassandra.cqltypes.CounterColumnType)
self.assertEqual(lookup_casstype('DateType'), cassandra.cqltypes.DateType)
self.assertEqual(lookup_casstype('DecimalType'), cassandra.cqltypes.DecimalType)
self.assertEqual(lookup_casstype('DoubleType'), cassandra.cqltypes.DoubleType)
self.assertEqual(lookup_casstype('FloatType'), cassandra.cqltypes.FloatType)
self.assertEqual(lookup_casstype('InetAddressType'), cassandra.cqltypes.InetAddressType)
self.assertEqual(lookup_casstype('Int32Type'), cassandra.cqltypes.Int32Type)
self.assertEqual(lookup_casstype('UTF8Type'), cassandra.cqltypes.UTF8Type)
self.assertEqual(lookup_casstype('DateType'), cassandra.cqltypes.DateType)
self.assertEqual(lookup_casstype('TimeType'), cassandra.cqltypes.TimeType)
self.assertEqual(lookup_casstype('ByteType'), cassandra.cqltypes.ByteType)
self.assertEqual(lookup_casstype('ShortType'), cassandra.cqltypes.ShortType)
self.assertEqual(lookup_casstype('TimeUUIDType'), cassandra.cqltypes.TimeUUIDType)
self.assertEqual(lookup_casstype('UUIDType'), cassandra.cqltypes.UUIDType)
self.assertEqual(lookup_casstype('IntegerType'), cassandra.cqltypes.IntegerType)
self.assertEqual(lookup_casstype('MapType'), cassandra.cqltypes.MapType)
self.assertEqual(lookup_casstype('ListType'), cassandra.cqltypes.ListType)
self.assertEqual(lookup_casstype('SetType'), cassandra.cqltypes.SetType)
self.assertEqual(lookup_casstype('CompositeType'), cassandra.cqltypes.CompositeType)
self.assertEqual(lookup_casstype('ColumnToCollectionType'), cassandra.cqltypes.ColumnToCollectionType)
self.assertEqual(lookup_casstype('ReversedType'), cassandra.cqltypes.ReversedType)
self.assertEqual(str(lookup_casstype('unknown')), str(cassandra.cqltypes.mkUnrecognizedType('unknown')))
self.assertRaises(ValueError, lookup_casstype, 'AsciiType~')
def test_casstype_parameterized(self):
self.assertEqual(LongType.cass_parameterized_type_with(()), 'LongType')
self.assertEqual(LongType.cass_parameterized_type_with((), full=True), 'org.apache.cassandra.db.marshal.LongType')
self.assertEqual(SetType.cass_parameterized_type_with([DecimalType], full=True), 'org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.DecimalType)')
self.assertEqual(LongType.cql_parameterized_type(), 'bigint')
subtypes = (cassandra.cqltypes.UTF8Type, cassandra.cqltypes.UTF8Type)
self.assertEqual('map<text, text>',
cassandra.cqltypes.MapType.apply_parameters(subtypes).cql_parameterized_type())
def test_datetype_from_string(self):
# Ensure all formats can be parsed, without exception
for format in cassandra.cqltypes.cql_timestamp_formats:
date_string = str(datetime.datetime.now().strftime(format))
cassandra.cqltypes.DateType.interpret_datestring(date_string)
def test_cql_typename(self):
"""
Smoke test cql_typename
"""
self.assertEqual(cql_typename('DateType'), 'timestamp')
self.assertEqual(cql_typename('org.apache.cassandra.db.marshal.ListType(IntegerType)'), 'list<varint>')
def test_named_tuple_colname_substitution(self):
colnames = ("func(abc)", "[applied]", "func(func(abc))", "foo_bar", "foo_bar_")
rows = [(1, 2, 3, 4, 5)]
result = named_tuple_factory(colnames, rows)[0]
self.assertEqual(result[0], result.func_abc)
self.assertEqual(result[1], result.applied)
self.assertEqual(result[2], result.func_func_abc)
self.assertEqual(result[3], result.foo_bar)
self.assertEqual(result[4], result.foo_bar_)
def test_parse_casstype_args(self):
class FooType(CassandraType):
typename = 'org.apache.cassandra.db.marshal.FooType'
def __init__(self, subtypes, names):
self.subtypes = subtypes
self.names = names
@classmethod
def apply_parameters(cls, subtypes, names):
return cls(subtypes, [unhexlify(six.b(name)) if name is not None else name for name in names])
class BarType(FooType):
typename = 'org.apache.cassandra.db.marshal.BarType'
ctype = parse_casstype_args(''.join((
'org.apache.cassandra.db.marshal.FooType(',
'63697479:org.apache.cassandra.db.marshal.UTF8Type,',
'BarType(61646472657373:org.apache.cassandra.db.marshal.UTF8Type),',
'7a6970:org.apache.cassandra.db.marshal.UTF8Type',
')')))
self.assertEqual(FooType, ctype.__class__)
self.assertEqual(UTF8Type, ctype.subtypes[0])
# middle subtype should be a BarType instance with its own subtypes and names
self.assertIsInstance(ctype.subtypes[1], BarType)
self.assertEqual([UTF8Type], ctype.subtypes[1].subtypes)
self.assertEqual([b"address"], ctype.subtypes[1].names)
self.assertEqual(UTF8Type, ctype.subtypes[2])
self.assertEqual([b'city', None, b'zip'], ctype.names)
def test_empty_value(self):
self.assertEqual(str(EmptyValue()), 'EMPTY')
def test_datetype(self):
now_time_seconds = time.time()
now_datetime = datetime.datetime.utcfromtimestamp(now_time_seconds)
# Cassandra timestamps in millis
now_timestamp = now_time_seconds * 1e3
# same results serialized
self.assertEqual(DateType.serialize(now_datetime, 0), DateType.serialize(now_timestamp, 0))
# deserialize
# epoc
expected = 0
self.assertEqual(DateType.deserialize(int64_pack(1000 * expected), 0), datetime.datetime.utcfromtimestamp(expected))
# beyond 32b
expected = 2 ** 33
self.assertEqual(DateType.deserialize(int64_pack(1000 * expected), 0), datetime.datetime(2242, 3, 16, 12, 56, 32))
# less than epoc (PYTHON-119)
expected = -770172256
self.assertEqual(DateType.deserialize(int64_pack(1000 * expected), 0), datetime.datetime(1945, 8, 5, 23, 15, 44))
# work around rounding difference among Python versions (PYTHON-230)
expected = 1424817268.274
self.assertEqual(DateType.deserialize(int64_pack(int(1000 * expected)), 0), datetime.datetime(2015, 2, 24, 22, 34, 28, 274000))
# Large date overflow (PYTHON-452)
expected = 2177403010.123
self.assertEqual(DateType.deserialize(int64_pack(int(1000 * expected)), 0), datetime.datetime(2038, 12, 31, 10, 10, 10, 123000))
def test_write_read_string(self):
with tempfile.TemporaryFile() as f:
value = u'test'
write_string(f, value)
f.seek(0)
self.assertEqual(read_string(f), value)
def test_write_read_longstring(self):
with tempfile.TemporaryFile() as f:
value = u'test'
write_longstring(f, value)
f.seek(0)
self.assertEqual(read_longstring(f), value)
def test_write_read_stringmap(self):
with tempfile.TemporaryFile() as f:
value = {'key': 'value'}
write_stringmap(f, value)
f.seek(0)
self.assertEqual(read_stringmap(f), value)
def test_write_read_inet(self):
with tempfile.TemporaryFile() as f:
value = ('192.168.1.1', 9042)
write_inet(f, value)
f.seek(0)
self.assertEqual(read_inet(f), value)
with tempfile.TemporaryFile() as f:
value = ('2001:db8:0:f101::1', 9042)
write_inet(f, value)
f.seek(0)
self.assertEqual(read_inet(f), value)
def test_cql_quote(self):
self.assertEqual(cql_quote(u'test'), "'test'")
self.assertEqual(cql_quote('test'), "'test'")
self.assertEqual(cql_quote(0), '0')