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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
220 lines
9.2 KiB
Python
220 lines
9.2 KiB
Python
# Copyright (c) 2013 Cloudera, Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import re
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import shlex
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from subprocess import call
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from tests.common.test_vector import *
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from tests.common.impala_test_suite import *
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from tests.util.filesystem_utils import WAREHOUSE
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# The purpose of the show create table tests are to ensure that the "SHOW CREATE TABLE"
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# output can actually be used to recreate the table. A test consists of a table
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# definition. The table is created, then the output of "SHOW CREATE TABLE" is used to
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# test if the table can be recreated. This test class does not support --update-results.
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class TestShowCreateTable(ImpalaTestSuite):
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TEST_DB_NAME = "show_create_table_test_db"
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VALID_SECTION_NAMES = ["CREATE_TABLE", "QUERY", "RESULTS"]
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# Properties to filter before comparing results
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FILTER_TBL_PROPERTIES = ["transient_lastDdlTime", "numFiles", "numPartitions",\
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"numRows", "rawDataSize", "totalSize", "COLUMN_STATS_ACCURATE",
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"STATS_GENERATED_VIA_STATS_TASK"]
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@classmethod
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def get_workload(self):
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return 'functional-query'
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@classmethod
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def add_test_dimensions(cls):
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super(TestShowCreateTable, cls).add_test_dimensions()
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# don't use any exec options, running exactly once is fine
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cls.TestMatrix.clear_dimension('exec_option')
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# There is no reason to run these tests using all dimensions.
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cls.TestMatrix.add_dimension(create_uncompressed_text_dimension(cls.get_workload()))
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cls.TestMatrix.add_constraint(lambda v:\
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v.get_value('table_format').file_format == 'text' and\
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v.get_value('table_format').compression_codec == 'none')
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def setup_method(self, method):
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""" cleanup and create a fresh test database """
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self.cleanup_db(self.TEST_DB_NAME)
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self.execute_query("create database %s location '%s/%s.db'" %
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(self.TEST_DB_NAME, WAREHOUSE, self.TEST_DB_NAME))
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def teardown_method(self, method):
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self.cleanup_db(self.TEST_DB_NAME)
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def test_show_create_table(self, vector):
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self.__run_show_create_table_test_case('QueryTest/show-create-table', vector)
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def __run_show_create_table_test_case(self, test_file_name, vector):
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"""
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Runs a show-create-table test file, containing the following sections:
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---- CREATE_TABLE
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contains a table creation statement to create table TABLE_NAME
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---- RESULTS
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contains the expected result of SHOW CREATE TABLE table_name
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OR
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---- QUERY
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a show create table query
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---- RESULTS
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contains the expected output of the SHOW CREATE TABLE query
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"""
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sections = self.load_query_test_file(self.get_workload(), test_file_name,\
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self.VALID_SECTION_NAMES)
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for test_section in sections:
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test_case = ShowCreateTableTestCase(test_section, test_file_name, self.TEST_DB_NAME)
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if not test_case.existing_table:
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# create table in Impala
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self.__exec(test_case.create_table_sql)
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# execute "SHOW CREATE TABLE ..."
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result = self.__exec(test_case.show_create_table_sql)
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create_table_result = self.__normalize(result.data[0])
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if not test_case.existing_table:
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# drop the table
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self.__exec(test_case.drop_table_sql)
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# check the result matches the expected result
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expected_result = self.__normalize(self.__replace_uri(\
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test_case.expected_result,\
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self.__get_location_uri(create_table_result)))
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self.__compare_result(expected_result, create_table_result)
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if test_case.existing_table:
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continue
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# recreate the table with the result from above
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self.__exec(create_table_result)
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try:
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# we should get the same result from "show create table ..."
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result = self.__exec(test_case.show_create_table_sql)
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new_create_table_result = self.__normalize(result.data[0])
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assert create_table_result == new_create_table_result
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finally:
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# drop the table
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self.__exec(test_case.drop_table_sql)
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def __exec(self, sql_str):
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return self.execute_query_expect_success(self.client, sql_str)
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def __get_location_uri(self, sql_str):
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m = re.search("LOCATION '([^\']+)'", sql_str)
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if m is not None:
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return m.group(1)
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def __compare_result(self, expected_sql, actual_sql):
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""" Extract all properties """
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expected_tbl_props = self.__get_properties_map(expected_sql, "TBLPROPERTIES")
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actual_tbl_props = self.__get_properties_map(actual_sql, "TBLPROPERTIES")
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assert expected_tbl_props == actual_tbl_props
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expected_serde_props = self.__get_properties_map(expected_sql, "SERDEPROPERTIES")
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actual_serde_props = self.__get_properties_map(actual_sql, "SERDEPROPERTIES")
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assert expected_serde_props == actual_serde_props
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expected_sql_filtered = self.__remove_properties_maps(expected_sql)
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actual_sql_filtered = self.__remove_properties_maps(actual_sql)
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assert expected_sql_filtered == actual_sql_filtered
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def __normalize(self, s):
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""" Normalize the string to remove extra whitespaces and remove keys
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from tblproperties and serdeproperties that we don't want
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"""
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s = ' '.join(s.split())
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for k in self.FILTER_TBL_PROPERTIES:
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kv_regex = "'%s'\s*=\s*'[^\']+'\s*,?" % (k)
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s = re.sub(kv_regex, "", s)
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# If we removed the last property, there will be a dangling comma that is not valid
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# e.g. 'k1'='v1', ) -> 'k1'='v1')
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s = re.sub(",\s*\)", ")", s)
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# Need to remove any whitespace after left parens and before right parens
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s = re.sub("\(\s+", "(", s)
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s = re.sub("\s+\)", ")", s)
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# If the only properties were removed, the properties sections may be empty, which
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# is not valid
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s = re.sub("TBLPROPERTIES\s*\(\s*\)", "", s)
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s = re.sub("SERDEPROPERTIES\s*\(\s*\)", "", s)
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return s
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def __properties_map_regex(self, name):
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return "%s \(([^)]+)\)" % name
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def __remove_properties_maps(self, s):
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""" Removes the tblproperties and serdeproperties from the string """
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return re.sub(self.__properties_map_regex("WITH SERDEPROPERTIES"), "",\
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re.sub(self.__properties_map_regex("TBLPROPERTIES"), "", s)).strip()
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def __get_properties_map(self, s, properties_map_name):
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""" Extracts a dict of key-value pairs from the sql string s. The properties_map_name
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is the name of the properties map, e.g. 'tblproperties' or 'serdeproperties'
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"""
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map_match = re.search(self.__properties_map_regex(properties_map_name), s)
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if map_match is None:
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return dict()
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kv_regex = "'([^\']+)'\s*=\s*'([^\']+)'"
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kv_results = dict(re.findall(kv_regex, map_match.group(1)))
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for filtered_key in self.FILTER_TBL_PROPERTIES:
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if filtered_key in kv_results:
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del kv_results[filtered_key]
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return kv_results
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def __replace_uri(self, s, uri):
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return s if uri is None else s.replace("$$location_uri$$", uri)
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# Represents one show-create-table test case. Performs validation of the test sections
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# and provides SQL to execute for each section.
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class ShowCreateTableTestCase(object):
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def __init__(self, test_section, test_file_name, test_db_name):
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if 'QUERY' in test_section:
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self.existing_table = True
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self.show_create_table_sql = test_section['QUERY'].strip()
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elif 'CREATE_TABLE' in test_section:
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self.existing_table = False
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self.create_table_sql = QueryTestSectionReader.build_query(\
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test_section['CREATE_TABLE'])
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name = self.__get_table_name(self.create_table_sql)
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assert name.find(".") == -1, 'Error in test file %s. Found unexpected table '\
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'name %s that is qualified with a database' % (test_file_name, name)
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self.table_name = test_db_name + '.' + name
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self.create_table_sql =\
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self.create_table_sql.replace(name, self.table_name, 1)
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self.show_create_table_sql = 'show create table %s' % (self.table_name)
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self.drop_table_sql = "drop table %s" % (self.table_name)
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else:
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assert 0, 'Error in test file %s. Test cases require a '\
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'CREATE_TABLE section.\n%s' %\
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(test_file_name, pprint.pformat(test_section))
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self.expected_result = test_section['RESULTS']
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def __get_table_name(self, create_table_sql):
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lexer = shlex.shlex(create_table_sql)
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tokens = list(lexer)
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# sanity check the create table statement
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if len(tokens) < 3 or tokens[0].lower() != "create":
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assert 0, 'Error in test. Invalid CREATE TABLE statement: %s' % (create_table_sql)
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if tokens[1].lower() != "table" and \
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(tokens[1].lower() != "external" or tokens[2].lower() != "table"):
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assert 0, 'Error in test. Invalid CREATE TABLE statement: %s' % (create_table_sql)
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if tokens[1].lower() == "external":
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# expect "create external table table_name ..."
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return tokens[3]
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else:
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# expect a create table table_name ...
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return tokens[2]
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