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from datetime import date
from tests.testcase import BaseTestCase
from clickhouse_driver import errors
from clickhouse_driver.errors import ServerException
from tests.util import require_server_version
class InsertTestCase(BaseTestCase):
def test_type_mismatch(self):
with self.create_table('a Float32'):
with self.assertRaises(errors.TypeMismatchError):
data = [(date(2012, 10, 25), )]
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
def test_no_such_column(self):
with self.create_table('a Float32'):
with self.assertRaises(ServerException):
data = [(1, )]
self.client.execute(
'INSERT INTO test (b) VALUES', data
)
def test_data_malformed_rows(self):
with self.create_table('a Int8'), self.assertRaises(TypeError):
data = [1]
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
def test_data_less_columns_then_expected(self):
with self.create_table('a Int8, b Int8'):
with self.assertRaises(ValueError) as e:
data = [(1, )]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data
)
self.assertEqual(str(e.exception), 'Expected 2 columns, got 1')
def test_data_more_columns_then_expected(self):
with self.create_table('a Int8, b Int8'):
with self.assertRaises(ValueError) as e:
data = [(1, 2, 3)]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data
)
self.assertEqual(str(e.exception), 'Expected 2 columns, got 3')
def test_data_different_rows_length(self):
with self.create_table('a Int8, b Int8'):
with self.assertRaises(ValueError) as e:
data = [(1, 2), (3, )]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data
)
self.assertEqual(str(e.exception), 'Different rows length')
def test_data_different_rows_length_from_dicts(self):
with self.create_table('a Int8, b Int8'):
with self.assertRaises(KeyError):
data = [{'a': 1, 'b': 2}, {'a': 3}]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data
)
def test_data_unsupported_row_type(self):
with self.create_table('a Int8'):
with self.assertRaises(TypeError) as e:
data = [1]
self.client.execute(
'INSERT INTO test (a) VALUES', data, types_check=True
)
self.assertIn('dict, list or tuple is expected', str(e.exception))
def test_data_dicts_ok(self):
with self.create_table('a Int8, b Int8'):
data = [{'a': 1, 'b': 2}, {'a': 3, 'b': 4}]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(inserted, '1\t2\n3\t4\n')
inserted = self.client.execute(query)
self.assertEqual(inserted, [(1, 2), (3, 4)])
def test_data_generator_type(self):
with self.create_table('a Int8'):
data = ((x, ) for x in range(3))
self.client.execute(
'INSERT INTO test (a) VALUES', data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(inserted, '0\n1\n2\n')
inserted = self.client.execute(query)
self.assertEqual(inserted, [(0,), (1, ), (2, )])
def test_data_dicts_mixed_with_lists(self):
with self.create_table('a Int8'):
with self.assertRaises(TypeError) as e:
data = [{'a': 1}, (2, )]
self.client.execute(
'INSERT INTO test (a) VALUES', data, types_check=True
)
self.assertIn('dict is expected', str(e.exception))
with self.assertRaises(TypeError) as e:
data = [(1, ), {'a': 2}]
self.client.execute(
'INSERT INTO test (a) VALUES', data, types_check=True
)
self.assertIn('list or tuple is expected', str(e.exception))
def test_empty_insert(self):
with self.create_table('a Int8'):
self.client.execute(
'INSERT INTO test (a) VALUES', []
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(inserted, '')
inserted = self.client.execute(query)
self.assertEqual(inserted, [])
def test_insert_from_select(self):
with self.create_table('a UInt64'):
inserted = self.client.execute(
'INSERT INTO test (a) '
'SELECT number FROM system.numbers LIMIT 5'
)
self.assertEqual(inserted, [])
def test_insert_return(self):
with self.create_table('a Int8'):
rv = self.client.execute(
'INSERT INTO test (a) VALUES', []
)
self.assertEqual(rv, 0)
rv = self.client.execute(
'INSERT INTO test (a) VALUES', [(x,) for x in range(5)]
)
self.assertEqual(rv, 5)
@require_server_version(22, 3, 6)
def test_insert_from_input(self):
with self.create_table('a Int8'):
data = [{'a': 1}]
self.client.execute(
"INSERT INTO test (a) "
"SELECT a from input ('a Int8')",
data
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(inserted, '1\n')
class InsertColumnarTestCase(BaseTestCase):
def test_insert_tuple_ok(self):
with self.create_table('a Int8, b Int8'):
data = [(1, 2, 3), (4, 5, 6)]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data, columnar=True
)
query = 'SELECT * FROM test'
inserted = self.emit_cli(query)
self.assertEqual(inserted, '1\t4\n2\t5\n3\t6\n')
inserted = self.client.execute(query)
self.assertEqual(inserted, [(1, 4), (2, 5), (3, 6)])
inserted = self.client.execute(query, columnar=True)
self.assertEqual(inserted, [(1, 2, 3), (4, 5, 6)])
def test_insert_data_different_column_length(self):
with self.create_table('a Int8, b Int8'):
with self.assertRaises(ValueError) as e:
data = [(1, 2, 3), (4, 5)]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data, columnar=True
)
self.assertEqual(str(e.exception), 'Expected 3 rows, got 2')
def test_data_less_columns_then_expected(self):
with self.create_table('a Int8, b Int8'):
with self.assertRaises(ValueError) as e:
data = [(1, 2)]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data, columnar=True
)
self.assertEqual(str(e.exception), 'Expected 2 columns, got 1')
def test_data_more_columns_then_expected(self):
with self.create_table('a Int8, b Int8'):
with self.assertRaises(ValueError) as e:
data = [(1, 2), (3, 4), (5, 6)]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data, columnar=True
)
self.assertEqual(str(e.exception), 'Expected 2 columns, got 3')
def test_data_invalid_types(self):
with self.create_table('a Int8, b Int8'):
with self.assertRaises(TypeError) as e:
data = [(1, 2), {'a': 3, 'b': 4}]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data,
types_check=True, columnar=True
)
self.assertIn('list or tuple is expected', str(e.exception))
with self.assertRaises(TypeError) as e:
data = [(1, 2), 3]
self.client.execute(
'INSERT INTO test (a, b) VALUES', data,
types_check=True, columnar=True
)
self.assertIn('list or tuple is expected', str(e.exception))
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