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from __future__ import absolute_import, division, print_function
from tests.common.file_utils import create_table_from_parquet
from tests.common.impala_test_suite import ImpalaTestSuite
from tests.common.test_dimensions import create_single_exec_option_dimension


class TestDatasketches(ImpalaTestSuite):
  @classmethod
  def add_test_dimensions(cls):
    super(TestDatasketches, cls).add_test_dimensions()
    cls.ImpalaTestMatrix.add_dimension(create_single_exec_option_dimension())
    cls.ImpalaTestMatrix.add_constraint(lambda v:
        v.get_value('table_format').file_format in ['parquet'])

  def test_hll(self, vector, unique_database):
    create_table_from_parquet(self.client, unique_database, 'hll_sketches_from_hive')
    create_table_from_parquet(self.client, unique_database, 'hll_sketches_from_impala')
    self.run_test_case('QueryTest/datasketches-hll', vector, unique_database)

  def test_cpc(self, vector, unique_database):
    create_table_from_parquet(self.client, unique_database, 'cpc_sketches_from_hive')
    create_table_from_parquet(self.client, unique_database, 'cpc_sketches_from_impala')
    self.run_test_case('QueryTest/datasketches-cpc', vector, unique_database)

  def test_theta(self, vector, unique_database):
    create_table_from_parquet(self.client, unique_database, 'theta_sketches_from_hive')
    create_table_from_parquet(self.client, unique_database, 'theta_sketches_from_impala')
    self.run_test_case('QueryTest/datasketches-theta', vector, unique_database)

  def test_kll(self, vector, unique_database):
    create_table_from_parquet(self.client, unique_database, 'kll_sketches_from_hive')
    create_table_from_parquet(self.client, unique_database, 'kll_sketches_from_impala')
    self.run_test_case('QueryTest/datasketches-kll', vector, unique_database)