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#
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from __future__ import absolute_import, division, print_function

from tests.common.impala_test_suite import ImpalaTestSuite
from tests.common.test_dimensions import (
    create_client_protocol_dimension,
    create_exec_option_dimension,
)


class TestUtf8StringFunctions(ImpalaTestSuite):

  @classmethod
  def add_test_dimensions(cls):
    super(TestUtf8StringFunctions, cls).add_test_dimensions()
    cls.ImpalaTestMatrix.add_dimension(
      create_exec_option_dimension(disable_codegen_options=[False, True]))
    cls.ImpalaTestMatrix.add_constraint(lambda v:
        v.get_value('table_format').file_format in ['parquet']
        and v.get_value('table_format').compression_codec in ['none'])
    # Run these queries through both beeswax and HS2 to get coverage of CHAR/VARCHAR
    # returned via both protocols.
    cls.ImpalaTestMatrix.add_dimension(create_client_protocol_dimension())

  def test_string_functions(self, vector):
    self.run_test_case('QueryTest/utf8-string-functions', vector)