YQ Connector: fix integration tests style (ydb-platform#640)

Author: vitalyisaev2

ydb/library/yql/providers/generic/connector/tests/test_cases/select_positive_common.py

@@ -241,7 +241,7 @@ def _large_table(self) -> Sequence[TestCase]:
         test_cases = []
         for data_source_kind in data_source_kinds:
             tc = TestCase(
-                name=f'large_table',
+                name='large_table',
                 data_source_kind=data_source_kind,
                 data_in=data_in,
                 data_out_=data_in,

ydb/library/yql/providers/generic/connector/tests/utils/dqrun.py

@@ -1,7 +1,6 @@
 from pathlib import Path
 import subprocess
 from typing import Final
-import json
 
 import jinja2
 

ydb/library/yql/providers/generic/connector/tests/utils/settings.py

@@ -1,4 +1,3 @@
-from os import environ
 from dataclasses import dataclass
 from typing import Optional, Sequence
 
@@ -46,7 +45,7 @@ def from_env(cls) -> 'Settings':
             connector=cls.Connector(
                 grpc_host='localhost',
                 grpc_port=50051,
-                paging_bytes_per_page=4*1024*1024,
+                paging_bytes_per_page=4 * 1024 * 1024,
                 paging_prefetch_queue_capacity=2,
             ),
             clickhouse=cls.ClickHouse(

ydb/library/yql/providers/generic/connector/tests/utils/sql.py

@@ -1,6 +1,7 @@
 import datetime
 from typing import Sequence
 
+
 def format_values_for_sql_insert(row: Sequence) -> str:
     row_values_dump = []
     for val in row:
@@ -17,6 +18,7 @@ def format_values_for_sql_insert(row: Sequence) -> str:
     values = "(" + ", ".join(row_values_dump) + ")"
     return values
 
+
 def format_values_for_bulk_sql_insert(data_in: Sequence) -> str:
     """
     This function helps to build multiline INSERTs, like this:

ydb/library/yql/providers/generic/connector/tests/ya.make

@@ -57,3 +57,8 @@ DEPENDS(
 )
 
 END()
+
+RECURSE_FOR_TESTS(
+    test_cases
+    utils
+)