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# coding=utf-8
from __future__ import unicode_literals
from tests.testcase import BaseTestCase
from clickhouse_driver import errors
class FixedStringTestCase(BaseTestCase):
def test_simple(self):
data = [('a', ), ('bb', ), ('ccc', ), ('dddd', ), ('я', )]
with self.create_table('a FixedString(4)'):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted, (
'a\\0\\0\\0\n'
'bb\\0\\0\n'
'ccc\\0\n'
'dddd\n'
'я\\0\\0\n'
)
)
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_non_utf(self):
data = [('яндекс'.encode('koi8-r'), )]
with self.create_table('a FixedString(6)'):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query, encoding='koi8-r')
self.assertEqual(inserted, 'яндекс\n')
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_oversized(self):
columns = 'a FixedString(4)'
data = [('aaaaa', )]
with self.create_table(columns):
with self.assertRaises(errors.TooLargeStringSize):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
data = [('тест', )]
with self.create_table(columns):
with self.assertRaises(errors.TooLargeStringSize):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
def test_nullable(self):
with self.create_table('a Nullable(FixedString(10))'):
data = [(None, ), ('test', ), (None, ), ('nullable', )]
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted,
'\\N\ntest\\0\\0\\0\\0\\0\\0\n\\N\nnullable\\0\\0\n'
)
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_null_byte_in_the_middle(self):
data = [('test\0test', )]
with self.create_table('a FixedString(9)'):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_empty(self):
data = [('',)]
with self.create_table('a FixedString(5)'):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_custom_encoding(self):
settings = {'strings_encoding': 'cp1251'}
data = [(('яндекс'), ), (('test'), )]
with self.create_table('a FixedString(10)'):
self.client.execute(
'INSERT INTO test (a) VALUES', data, settings=settings
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query, encoding='cp1251')
self.assertEqual(
inserted,
'яндекс\\0\\0\\0\\0\n'
'test\\0\\0\\0\\0\\0\\0\n'
)
inserted = self.client.execute(query, settings=settings)
self.assertEqual(inserted, data)
self.assertIsInstance(inserted[0][0], str)
self.assertIsInstance(inserted[1][0], str)
def test_not_supported_types(self):
datas = [
[(bytearray(b'asd'), )],
[(123, )]
]
with self.create_table('a String'):
for data in datas:
with self.assertRaises(errors.TypeMismatchError) as e:
self.client.execute(
'INSERT INTO test (a) VALUES', data,
types_check=True
)
self.assertIn('for column "a"', str(e.exception))
with self.assertRaises(AttributeError):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
class ByteFixedStringTestCase(BaseTestCase):
client_kwargs = {'settings': {'strings_as_bytes': True}}
def test_oversized(self):
columns = 'a FixedString(4)'
data = [(bytes('aaaaa'.encode('utf-8')), )]
with self.create_table(columns):
with self.assertRaises(errors.TooLargeStringSize):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
data = [(bytes('тест'.encode('utf-8')), )]
with self.create_table(columns):
with self.assertRaises(errors.TooLargeStringSize):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
def test_not_decoded(self):
data = [
(bytes('яндекс'.encode('cp1251')), ),
(bytes('test'.encode('cp1251')), ),
]
with self.create_table('a FixedString(8)'):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query, encoding='cp1251')
self.assertEqual(
inserted, 'яндекс\\0\\0\ntest\\0\\0\\0\\0\n'
)
inserted = self.client.execute(query)
# Assert items with trailing zeros
self.assertEqual(
inserted, [
('яндекс'.encode('cp1251') + b'\x00' * 2, ),
('test'.encode('cp1251') + b'\x00' * 4, )
]
)
self.assertIsInstance(inserted[0][0], bytes)
self.assertIsInstance(inserted[1][0], bytes)
def test_nullable(self):
with self.create_table('a Nullable(FixedString(10))'):
data = [
(None, ),
(b'test\x00\x00\x00\x00\x00\x00', ),
(None, ),
(b'nullable\x00\x00', )
]
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted,
'\\N\ntest\\0\\0\\0\\0\\0\\0\n\\N\nnullable\\0\\0\n'
)
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_not_supported_types(self):
datas = [
[('asd', )],
[(bytearray(b'asd'), )],
[(123, )]
]
with self.create_table('a String'):
for data in datas:
with self.assertRaises(errors.TypeMismatchError) as e:
self.client.execute(
'INSERT INTO test (a) VALUES', data,
types_check=True
)
self.assertIn('for column "a"', str(e.exception))
with self.assertRaises(ValueError) as e:
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
self.assertIn('bytes object expected', str(e.exception))
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