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from datetime import date
from clickhouse_driver import errors
from tests.testcase import BaseTestCase
from tests.util import require_server_version
class TupleTestCase(BaseTestCase):
def entuple(self, lst):
return tuple(
self.entuple(x) if isinstance(x, list) else x for x in lst
)
def test_simple(self):
columns = 'a Tuple(Int32, String)'
data = [((1, 'a'), ), ((2, 'b'), )]
with self.create_table(columns):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(inserted, "(1,'a')\n(2,'b')\n")
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_tuple_single_element(self):
columns = 'a Tuple(Int32)'
data = [((1, ), ), ((2, ), )]
with self.create_table(columns):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(inserted, "(1)\n(2)\n")
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_nullable(self):
data = [
((1, 'a'),),
((2, None),), ((None, None),), ((None, 'd'),),
((5, 'e'),)
]
with self.create_table('a Tuple(Nullable(Int32), Nullable(String))'):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted,
"(1,'a')\n"
"(2,NULL)\n(NULL,NULL)\n(NULL,'d')\n"
"(5,'e')\n"
)
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_nested_tuple_with_common_types(self):
columns = 'a Tuple(String, Tuple(Int32, String), String)'
data = [
(('one', (1, 'a'), 'two'),),
(('three', (2, 'b'), 'four'),)
]
with self.create_table(columns):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted,
"('one',(1,'a'),'two')\n"
"('three',(2,'b'),'four')\n"
)
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_tuple_of_tuples(self):
columns = (
"a Tuple("
"Tuple(Int32, String),"
"Tuple(Enum8('hello' = 1, 'world' = 2), Date)"
")"
)
data = [
(((1, 'a'), (1, date(2020, 3, 11))),),
(((2, 'b'), (2, date(2020, 3, 12))),)
]
with self.create_table(columns):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted,
"((1,'a'),('hello','2020-03-11'))\n"
"((2,'b'),('world','2020-03-12'))\n"
)
inserted = self.client.execute(query)
self.assertEqual(
inserted, [
(((1, 'a'), ('hello', date(2020, 3, 11))), ),
(((2, 'b'), ('world', date(2020, 3, 12))), )
]
)
def test_tuple_of_arrays(self):
data = [(([1, 2, 3],),), (([4, 5, 6],),)]
with self.create_table('a Tuple(Array(Int32))'):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted,
"([1,2,3])\n([4,5,6])\n"
)
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
# Bug in Array of Tuple handing before 19.16.13:
# DESCRIBE TABLE test
#
# | a.1 | Array(UInt8) |
# | a.2 | Array(UInt8) |
# | a.3 | Array(UInt8) |
# https://github.com/ClickHouse/ClickHouse/pull/8866
@require_server_version(19, 16, 13)
def test_array_of_tuples(self):
data = [
([(1, 2, 3), (4, 5, 6)],),
([(7, 8, 9)],),
]
with self.create_table('a Array(Tuple(UInt8, UInt8, UInt8))'):
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted,
"[(1,2,3),(4,5,6)]\n"
"[(7,8,9)]\n"
)
inserted = self.client.execute(query)
self.assertEqual(inserted, data)
def test_type_mismatch_error(self):
columns = 'a Tuple(Int32)'
data = [('test', )]
with self.create_table(columns):
with self.assertRaises(errors.TypeMismatchError):
self.client.execute('INSERT INTO test (a) VALUES', data)
|
