09b9d2a491
The class allows to check for data produced on stdout and stderr. However, programs reporting data on stderr usually fails with an exit code != 0. If the command is not called with raise_on_error=False it will never be possible to catch information from stderr. As we don't know if programs returns a failed exit code even on their e.g --usage message we should always pass the no raise option to make this more useful
137 lines
5.2 KiB
Python
137 lines
5.2 KiB
Python
import logging
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from mock import (
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patch, call
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)
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from pytest import (
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raises, fixture
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)
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from collections import namedtuple
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from kiwi.utils.command_capabilities import CommandCapabilities
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from kiwi.exceptions import KiwiCommandCapabilitiesError
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class TestCommandCapabilities:
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@fixture(autouse=True)
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def inject_fixtures(self, caplog):
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self._caplog = caplog
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@patch('kiwi.command.Command.run')
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def test_has_option_in_help(self, mock_run):
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command_type = namedtuple('command', ['output', 'error'])
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mock_run.return_value = command_type(
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output="Dummy line\n\t--some-flag\n\t--some-other-flag",
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error="Dummy line\n\t--error-flag\n\t--some-other-flag"
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)
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assert CommandCapabilities.has_option_in_help(
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'command', '--some-flag'
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) is True
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assert CommandCapabilities.has_option_in_help(
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'command', '--error-flag'
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) is True
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assert CommandCapabilities.has_option_in_help(
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'command', '--some-flag', help_flags=['subcommand', '-h']
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) is True
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assert CommandCapabilities.has_option_in_help(
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'command', '--some-other-flag',
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help_flags=['subcommand', '-h'], root='root_dir'
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) is True
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assert CommandCapabilities.has_option_in_help(
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'command', '--non-existing-flag', raise_on_error=False
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) is False
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mock_run.assert_has_calls(
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[
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call(['command', '--help'], raise_on_error=False),
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call(['command', '--help'], raise_on_error=False),
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call(['command', 'subcommand', '-h'], raise_on_error=False),
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call(
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['chroot', 'root_dir', 'command', 'subcommand', '-h'],
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raise_on_error=False
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),
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call(['command', '--help'], raise_on_error=False)
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]
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)
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@patch('kiwi.command.Command.run')
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def test_has_option_in_help_command_failure_warning(self, mock_run):
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mock_run.return_value.output = ''
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mock_run.return_value.error = ''
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with self._caplog.at_level(logging.WARNING):
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CommandCapabilities.has_option_in_help(
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'command_that_fails', '--non-existing-flag',
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raise_on_error=False
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)
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@patch('kiwi.command.Command.run')
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def test_has_option_in_help_command_failure_exception(self, mock_run):
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mock_run.return_value.output = ''
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mock_run.return_value.error = ''
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with raises(KiwiCommandCapabilitiesError):
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CommandCapabilities.has_option_in_help(
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'command_that_fails', '--non-existing-flag'
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)
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@patch('kiwi.command.Command.run')
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def test_check_version(self, mock_run):
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command_type = namedtuple('command', ['output'])
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mock_run.return_value = command_type(
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output="Dummy line\ncommand v1.2.3\n"
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)
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assert CommandCapabilities.check_version('command', (1, 2, 3))
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assert CommandCapabilities.check_version('command', (1, 1, 3))
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assert not CommandCapabilities.check_version('command', (1, 3))
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assert CommandCapabilities.check_version(
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'command', (1, 2, 3), version_flags=['-v']
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)
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assert CommandCapabilities.check_version(
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'command', (1, 2, 3), version_flags=['-v'], root='root_dir'
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)
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mock_run.assert_has_calls([
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call(['command', '--version']),
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call(['command', '--version']),
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call(['command', '--version']),
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call(['command', '-v']),
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call(['chroot', 'root_dir', 'command', '-v'])
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])
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@patch('kiwi.command.Command.run')
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def test_check_version_complex_pattern(self, mock_run):
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command_type = namedtuple('command', ['output'])
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mock_run.return_value = command_type(
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output="grub2-mkconfig (GRUB2) 2.02\n"
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)
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assert CommandCapabilities.check_version('command', (2, 2)) is True
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assert CommandCapabilities.check_version('command', (2, 4)) is False
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@patch('kiwi.command.Command.run')
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def test_check_version_no_match(self, mock_run):
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command_type = namedtuple('command', ['output'])
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mock_run.return_value = command_type(
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output="Dummy line\ncommand someother stuff\n"
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)
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with raises(KiwiCommandCapabilitiesError):
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CommandCapabilities.check_version('command', (1, 2, 3))
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@patch('kiwi.command.Command.run')
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def test_check_version_failure_warning(self, mock_run):
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def side_effect():
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raise Exception("Something went wrong")
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mock_run.side_effect = side_effect
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with self._caplog.at_level(logging.WARNING):
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CommandCapabilities.check_version(
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'command_that_fails', (1, 2), raise_on_error=False
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)
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@patch('kiwi.command.Command.run')
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def test_check_version_failure_exception(self, mock_run):
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def side_effect():
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raise Exception("Something went wrong")
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mock_run.side_effect = side_effect
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with raises(KiwiCommandCapabilitiesError):
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CommandCapabilities.check_version(
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'command_that_fails', '--non-existing-flag'
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)
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