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b4db5d322f
When running tests with --enable-coverage, gcov writes diagnostic messages to stderr which get mixed with program output due to stderr=subprocess.STDOUT in run_and_get_output(). This causes test failures as the TAP parser encounters unexpected output. Add hide_stderr=True to most run_and_get_output() calls to discard coverage diagnostics while preserving the actual program output needed for test validation. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
91 lines
3.3 KiB
Python
Executable File
91 lines
3.3 KiB
Python
Executable File
#!/bin/env python3
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# crun - OCI runtime written in C
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#
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# Copyright (C) 2017, 2018, 2019 Giuseppe Scrivano <giuseppe@scrivano.org>
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# crun is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# crun is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with crun. If not, see <http://www.gnu.org/licenses/>.
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from tests_utils import *
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def test_limit_pid_minus_1():
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conf = base_config()
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add_all_namespaces(conf)
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if is_rootless():
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return (77, "requires root privileges")
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conf['process']['args'] = ['/init', 'cat', '/dev/null']
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conf['linux']['resources'] = {"pids" : {"limit" : -1}}
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try:
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out, _ = run_and_get_output(conf, hide_stderr=True)
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if len(out) == 0:
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return 0
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logger.info("PID limit -1 test failed: expected empty output")
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logger.info("actual output length: %d", len(out))
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logger.info("output: %s", out)
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return -1
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except Exception as e:
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logger.info("PID limit -1 test failed with exception: %s", e)
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return -1
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def test_limit_pid_0():
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conf = base_config()
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add_all_namespaces(conf)
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if is_rootless():
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return (77, "requires root privileges")
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conf['process']['args'] = ['/init', 'cat', '/dev/null']
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conf['linux']['resources'] = {"pids" : {"limit" : 0}}
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try:
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out, _ = run_and_get_output(conf, hide_stderr=True)
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if len(out) == 0:
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return 0
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logger.info("PID limit 0 test failed: expected empty output")
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logger.info("actual output length: %d", len(out))
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logger.info("output: %s", out)
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return -1
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except Exception as e:
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logger.info("PID limit 0 test failed with exception: %s", e)
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return -1
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def test_limit_pid_n():
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conf = base_config()
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if is_rootless():
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return (77, "requires root privileges")
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add_all_namespaces(conf)
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conf['process']['args'] = ['/init', 'forkbomb', '20']
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pid_limit = 10
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conf['linux']['resources'] = {"pids" : {"limit" : pid_limit}}
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try:
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out, _ = run_and_get_output(conf)
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logger.info("PID limit %d test failed: expected fork bomb to be limited but command succeeded", pid_limit)
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logger.info("output: %s", out)
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return -1
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except Exception as e:
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error_output = ""
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if hasattr(e, 'output') and e.output:
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error_output = e.output.decode('utf-8', errors='ignore')
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if "fork: Resource temporarily unavailable" in error_output:
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return 0
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logger.info("PID limit %d test failed: expected 'fork: Resource temporarily unavailable' error", pid_limit)
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logger.info("actual error: %s", e.output)
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if error_output:
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logger.info("error output: %s", e.output)
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return -1
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all_tests = {
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"limit-pid-minus-1" : test_limit_pid_minus_1,
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"limit-pid-0" : test_limit_pid_0,
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"limit-pid-n" : test_limit_pid_n,
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}
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if __name__ == "__main__":
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tests_main(all_tests)
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