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adding test for detection of cyclic reference to alias

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gal salomon 2020-03-31 14:35:51 +03:00
parent f42872fd53
commit d543619e71
1 changed files with 22 additions and 6 deletions
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26
s3tests_boto3/functional/test_s3select.py
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@ -73,7 +73,6 @@ from . import (
import boto
import boto.s3.connection
import sys
#import urlparse
import random
from botocore.client import Config
@ -216,10 +215,11 @@ def test_column_sum_min_max():
def test_alias():
# purpose: test is comparing result of exact queries , one with alias the other without.
# this test is settign alias on 3 projections, the third projection is using other projection alias, also the where clause is using aliases
# the test validate that where-cluase and projections are executing aliases correctlly, bare in mind that each alias has its own cache,
# and that cache need to invalidate time.
# purpose: test is comparing result of exactly the same queries , one with alias the other without.
# this test is setting alias on 3 projections, the third projection is using other projection alias, also the where clause is using aliases
# the test validate that where-clause and projections are executing aliases correctly, bare in mind that each alias has its own cache,
# and that cache need to be invalidate per new row.
csv_obj = create_random_csv_object(10000,10)
@ -234,3 +234,19 @@ def test_alias():
assert res_s3select_alias == res_s3select_no_alias
def test_alias_cyclic_refernce():
# purpose of test is to validate the s3select-engine is able to detect a cyclic reference to alias.
csv_obj = create_random_csv_object(10000,10)
csv_obj_name = "csv_10000x10"
bucket_name = "test"
upload_csv_object(bucket_name,csv_obj_name,csv_obj)
res_s3select_alias = remove_xml_tags_from_result( run_s3select(bucket_name,csv_obj_name,"select int(_1) as a1,int(_2) as a2, a1+a4 as a3, a5+a1 as a4, int(_3)+a3 as a5 from stdin;") )
find_res = res_s3select_alias.find("number of calls exceed maximum size, probably a cyclic reference to alias");
assert int(find_res) >= 0