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try:
import numpy as np
except ImportError:
np = None
from tests.numpy.testcase import NumpyBaseTestCase
class BoolTestCase(NumpyBaseTestCase):
n = 10
# https://clickhouse.com/docs/en/whats-new/changelog/2021
required_server_version = (21, 12, 0)
def check_result(self, rv, col_type):
data = (np.array(range(self.n)) % 2).astype(bool)
self.assertArraysEqual(rv[0], data)
self.assertEqual(rv[0].dtype, col_type)
def get_query(self, ch_type):
with self.create_table('a {}'.format(ch_type)):
data = [(np.array(range(self.n)) % 2).astype(bool)]
self.client.execute(
'INSERT INTO test (a) VALUES', data, columnar=True
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted, '\n'.join(str(x).lower() for x in data[0]) + '\n'
)
return self.client.execute(query, columnar=True)
def test_bool(self):
rv = self.get_query('Bool')
self.check_result(rv, np.bool_)
def test_insert_nan_into_non_nullable(self):
with self.create_table('a Bool'):
data = [
np.array([True, np.nan], dtype=object)
]
self.client.execute(
'INSERT INTO test (a) VALUES', data, columnar=True
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(
inserted,
'true\nfalse\n'
)
inserted = self.client.execute(query, columnar=True)
self.assertArraysEqual(inserted[0], np.array([True, 0]))
self.assertEqual(inserted[0].dtype, np.bool_)
def test_nullable(self):
with self.create_table('a Nullable(Bool)'):
data = [np.array([False, None, True, None, False])]
self.client.execute(
'INSERT INTO test (a) VALUES', data, columnar=True
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(inserted, 'false\n\\N\ntrue\n\\N\nfalse\n')
inserted = self.client.execute(query, columnar=True)
self.assertArraysEqual(inserted[0], data[0])
self.assertEqual(inserted[0].dtype, object)
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