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Many python files had a hashbang and the executable bit set though they were not intended to be run a standalone script. That makes determining which python files are actually scripts very difficult. A future patch will update the hashbang in real python scripts so they use $IMPALA_HOME/bin/impala-python. Change-Id: I04eafdc73201feefe65b85817a00474e182ec2ba Reviewed-on: http://gerrit.cloudera.org:8080/599 Reviewed-by: Casey Ching <casey@cloudera.com> Reviewed-by: Taras Bobrovytsky <tbobrovytsky@cloudera.com> Tested-by: Internal Jenkins
72 lines
2.8 KiB
Python
72 lines
2.8 KiB
Python
# Copyright (c) 2012 Cloudera, Inc. All rights reserved.
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# Validates limit on scan nodes
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#
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import logging
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import pytest
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from copy import copy
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from tests.beeswax.impala_beeswax import ImpalaBeeswaxException
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from tests.common.impala_test_suite import ImpalaTestSuite
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from tests.common.test_vector import *
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from tests.util.test_file_parser import QueryTestSectionReader
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class TestLimit(ImpalaTestSuite):
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LIMIT_VALUES = [1, 2, 3, 4, 5, 10, 100, 5000]
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LIMIT_VALUES_CORE = [1, 5, 10, 5000]
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QUERIES = ["select * from lineitem limit %d"]
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# TODO: we should be able to run count(*) in setup rather than hardcoding the values
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# but I have no idea how to do this with this framework.
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TOTAL_ROWS = 6001215
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@classmethod
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def get_workload(self):
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return 'tpch'
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@classmethod
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def add_test_dimensions(cls):
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super(TestLimit, cls).add_test_dimensions()
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# Add two more dimensions
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if cls.exploration_strategy() == 'core':
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cls.TestMatrix.add_dimension(
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TestDimension('limit_value', *TestLimit.LIMIT_VALUES_CORE))
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else:
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cls.TestMatrix.add_dimension(
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TestDimension('limit_value', *TestLimit.LIMIT_VALUES))
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cls.TestMatrix.add_dimension(TestDimension('query', *TestLimit.QUERIES))
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# Don't run with large limits and tiny batch sizes. This generates excessive
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# network traffic and makes the machine run very slowly.
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cls.TestMatrix.add_constraint(lambda v:\
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v.get_value('limit_value') < 100 or v.get_value('exec_option')['batch_size'] == 0)
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# TPCH is not generated in hbase format.
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# TODO: Add test coverage for hbase.
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cls.TestMatrix.add_constraint(lambda v:\
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v.get_value('table_format').file_format != "hbase")
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def test_limit(self, vector):
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# We can't validate the rows that are returned since that is non-deterministic.
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# This is why this is a python test rather than a .test.
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limit = vector.get_value('limit_value')
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expected_num_rows = min(limit, TestLimit.TOTAL_ROWS)
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query_string = vector.get_value('query') % limit
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result = self.execute_query(query_string, vector.get_value('exec_option'),
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table_format=vector.get_value('table_format'))
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assert(len(result.data) == expected_num_rows)
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class TestLimitBase(ImpalaTestSuite):
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def exec_query_validate(self, query, exec_options, should_succeed, expected_rows,
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expected_error):
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"""Executes a query and validates the results"""
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try:
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result = self.execute_query(query, exec_options)
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assert should_succeed, 'Query was expected to fail'
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assert len(result.data) == expected_rows,\
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'Wrong number of rows returned %d' % len(result.data)
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except ImpalaBeeswaxException as e:
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assert not should_succeed, 'Query was not expected to fail: %s' % e
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if (expected_error not in str(e)):
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print str(e)
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assert expected_error in str(e)
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