mirror of
https://github.com/catchorg/Catch2.git
synced 2024-11-05 13:49:55 +01:00
78 lines
2.6 KiB
Python
Executable File
78 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
# Copyright Catch2 Authors
|
|
# Distributed under the Boost Software License, Version 1.0.
|
|
# (See accompanying file LICENSE.txt or copy at
|
|
# https://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
# SPDX-License-Identifier: BSL-1.0
|
|
|
|
"""
|
|
This test script verifies that the random ordering of tests inside
|
|
Catch2 is invariant in regards to subsetting. This is done by running
|
|
the binary 3 times, once with all tests selected, and twice with smaller
|
|
subsets of tests selected, and verifying that the selected tests are in
|
|
the same relative order.
|
|
"""
|
|
|
|
import subprocess
|
|
import sys
|
|
import random
|
|
import xml.etree.ElementTree as ET
|
|
|
|
def none_to_empty_str(e):
|
|
if e is None:
|
|
return ""
|
|
assert type(e) is str
|
|
return e
|
|
|
|
def list_tests(self_test_exe, tags, rng_seed):
|
|
cmd = [self_test_exe, '--reporter', 'xml', '--list-tests', '--order', 'rand',
|
|
'--rng-seed', str(rng_seed)]
|
|
tags_arg = ','.join('[{}]~[.]'.format(t) for t in tags)
|
|
if tags_arg:
|
|
cmd.append(tags_arg)
|
|
process = subprocess.Popen(
|
|
cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
stdout, stderr = process.communicate()
|
|
if stderr:
|
|
raise RuntimeError("Unexpected error output:\n" + process.stderr)
|
|
|
|
root = ET.fromstring(stdout)
|
|
result = [(none_to_empty_str(tc.find('Name').text),
|
|
none_to_empty_str(tc.find('Tags').text),
|
|
none_to_empty_str(tc.find('ClassName').text)) for tc in root.findall('./TestCase')]
|
|
|
|
if len(result) < 2:
|
|
raise RuntimeError("Unexpectedly few tests listed (got {})".format(
|
|
len(result)))
|
|
return result
|
|
|
|
def check_is_sublist_of(shorter, longer):
|
|
assert len(shorter) < len(longer)
|
|
assert len(set(longer)) == len(longer)
|
|
|
|
indexes_in_longer = {s: i for i, s in enumerate(longer)}
|
|
for s1, s2 in zip(shorter, shorter[1:]):
|
|
assert indexes_in_longer[s1] < indexes_in_longer[s2], (
|
|
'{} comes before {} in longer list.\n'
|
|
'Longer: {}\nShorter: {}'.format(s2, s1, longer, shorter))
|
|
|
|
def main():
|
|
self_test_exe, = sys.argv[1:]
|
|
|
|
# We want a random seed for the test, but want to avoid 0,
|
|
# because it has special meaning
|
|
seed = random.randint(1, 2 ** 32 - 1)
|
|
|
|
list_one_tag = list_tests(self_test_exe, ['generators'], seed)
|
|
list_two_tags = list_tests(self_test_exe, ['generators', 'matchers'], seed)
|
|
list_all = list_tests(self_test_exe, [], seed)
|
|
|
|
# First, verify that restricting to a subset yields the same order
|
|
check_is_sublist_of(list_two_tags, list_all)
|
|
check_is_sublist_of(list_one_tag, list_two_tags)
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|