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79 lines
2.9 KiB
79 lines
2.9 KiB
# Copyright 2015 Confluent Inc. |
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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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from kafkatest import __version__ as __kafkatest_version__ |
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import re |
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import time |
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def kafkatest_version(): |
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"""Return string representation of current ducktape version.""" |
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return __kafkatest_version__ |
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def _kafka_jar_versions(proc_string): |
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"""Use a rough heuristic to find all kafka versions explicitly in the process classpath""" |
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versions = re.findall("kafka-[a-z]+-([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)", proc_string) |
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versions.extend(re.findall("kafka-([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)", proc_string)) |
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return set(versions) |
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def is_version(node, version_list, proc_grep_string="kafka", logger=None): |
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"""Heuristic to check that only the specified version appears in the classpath of the process |
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A useful tool to aid in checking that service version apis are working correctly. |
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""" |
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lines = [l for l in node.account.ssh_capture("ps ax | grep %s | grep -v grep" % proc_grep_string)] |
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assert len(lines) == 1 |
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versions = _kafka_jar_versions(lines[0]) |
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r = versions == {str(v) for v in version_list} |
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if not r and logger is not None: |
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logger.warning("%s: %s version mismatch: expected %s: actual %s" % \ |
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(str(node), proc_grep_string, version_list, versions)) |
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return r |
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def is_int(msg): |
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"""Method used to check whether the given message is an integer |
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return int or raises an exception if message is not an integer |
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""" |
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try: |
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return int(msg) |
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except ValueError: |
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raise Exception("Unexpected message format (expected an integer). Message: %s" % (msg)) |
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def is_int_with_prefix(msg): |
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""" |
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Method used check whether the given message is of format 'integer_prefix'.'integer_value' |
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:param msg: message to validate |
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:return: msg or raises an exception is a message is of wrong format |
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""" |
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try: |
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parts = msg.split(".") |
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if len(parts) != 2: |
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raise Exception("Unexpected message format. Message should be of format: integer " |
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"prefix dot integer value. Message: %s" % (msg)) |
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int(parts[0]) |
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int(parts[1]) |
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return msg |
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except ValueError: |
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raise Exception("Unexpected message format. Message should be of format: integer " |
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"prefix dot integer value, but one of the two parts (before or after dot) " |
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"are not integers. Message: %s" % (msg)) |
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