mirror of
https://github.com/ClickHouse/ClickHouse.git
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100 lines
3.8 KiB
Python
100 lines
3.8 KiB
Python
import difflib
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import time
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import logging
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from io import IOBase
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class TSV:
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"""Helper to get pretty diffs between expected and actual tab-separated value files"""
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def __init__(self, contents):
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if isinstance(contents, IOBase):
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raw_lines = contents.readlines()
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elif isinstance(contents, str) or isinstance(contents, str):
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raw_lines = contents.splitlines(True)
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elif isinstance(contents, list):
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raw_lines = ['\t'.join(map(str, l)) if isinstance(l, list) else str(l) for l in contents]
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elif isinstance(contents, TSV):
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self.lines = contents.lines
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return
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else:
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raise TypeError("contents must be either file or string or list, actual type: " + type(contents).__name__)
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self.lines = [l.strip() for l in raw_lines if l.strip()]
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def __eq__(self, other):
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if not isinstance(other, TSV):
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return self == TSV(other)
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return self.lines == other.lines
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def __ne__(self, other):
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if not isinstance(other, TSV):
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return self != TSV(other)
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return self.lines != other.lines
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def diff(self, other, n1='', n2=''):
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if not isinstance(other, TSV):
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return self.diff(TSV(other), n1=n1, n2=n2)
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return list(line.rstrip() for line in difflib.unified_diff(self.lines, other.lines, fromfile=n1, tofile=n2))[2:]
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def __str__(self):
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return '\n'.join(self.lines)
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def __repr__(self):
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return self.__str__()
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def __len__(self):
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return len(self.lines)
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@staticmethod
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def toMat(contents):
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return [line.split("\t") for line in contents.split("\n") if line.strip()]
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def assert_eq_with_retry(instance, query, expectation, retry_count=20, sleep_time=0.5, stdin=None, timeout=None,
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settings=None, user=None, ignore_error=False, get_result=lambda x: x):
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expectation_tsv = TSV(expectation)
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for i in range(retry_count):
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try:
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if TSV(get_result(instance.query(query, user=user, stdin=stdin, timeout=timeout, settings=settings,
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ignore_error=ignore_error))) == expectation_tsv:
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break
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time.sleep(sleep_time)
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except Exception as ex:
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logging.exception(f"assert_eq_with_retry retry {i+1} exception {ex}")
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time.sleep(sleep_time)
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else:
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val = TSV(get_result(instance.query(query, user=user, stdin=stdin, timeout=timeout, settings=settings,
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ignore_error=ignore_error)))
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if expectation_tsv != val:
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raise AssertionError("'{}' != '{}'\n{}".format(expectation_tsv, val, '\n'.join(
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expectation_tsv.diff(val, n1="expectation", n2="query"))))
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def assert_logs_contain(instance, substring):
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if not instance.contains_in_log(substring):
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raise AssertionError("'{}' not found in logs".format(substring))
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def assert_logs_contain_with_retry(instance, substring, retry_count=20, sleep_time=0.5):
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for i in range(retry_count):
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try:
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if instance.contains_in_log(substring):
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break
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time.sleep(sleep_time)
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except Exception as ex:
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logging.exception(f"contains_in_log_with_retry retry {i+1} exception {ex}")
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time.sleep(sleep_time)
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else:
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raise AssertionError("'{}' not found in logs".format(substring))
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def exec_query_with_retry(instance, query, retry_count=40, sleep_time=0.5, settings={}):
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exception = None
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for _ in range(retry_count):
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try:
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instance.query(query, timeout=30, settings=settings)
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break
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except Exception as ex:
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exception = ex
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logging.exception(f"Failed to execute query '{query}' on instance '{instance.name}' will retry")
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time.sleep(sleep_time)
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else:
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raise exception
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