# Copyright 2017 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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from autotest_lib.client.common_lib import error
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from autotest_lib.client.common_lib import utils as sys_utils
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from autotest_lib.client.cros import upstart
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"""Provides utility methods for CUPS."""
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def has_cups_upstart():
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"""Returns True if cups is installed under upstart."""
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return upstart.has_service('cupsd')
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def has_cups_systemd():
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"""Returns True if cups is running under systemd.
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Attempts to start cups if it is not already running.
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"""
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return sys_utils.has_systemd() and (
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(sys_utils.get_service_pid('cups') != 0) or
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(sys_utils.start_service('cups', ignore_status=True) == 0))
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def has_cups_or_die():
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"""Checks if the cups dameon is installed. Raises TestNAError if it is not.
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TestNA skips the test.
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"""
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if not (has_cups_upstart() or has_cups_systemd()):
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raise error.TestNAError('No cupsd service found')
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