def test_failing_command_rises(commands):
"""Test that a failing command raises."""
context = LaunchContext()
command = Command(commands['failing'])
with pytest.raises(SubstitutionFailure) as ex:
command.perform(context)
ex.match('executed command failed. Command: .*failing_command')
def test_missing_command_raises(commands):
"""Test that a command that doesn't exist raises."""
context = LaunchContext()
command = Command('ros2_launch_test_command_i_m_not_a_command')
with pytest.raises(SubstitutionFailure) as ex:
command.perform(context)
ex.match('file not found:')
def test_command_with_stderr_raises(commands):
"""Test that a command that produces stderr raises."""
context = LaunchContext()
command = Command(commands['with_stderr'])
with pytest.raises(SubstitutionFailure) as ex:
command.perform(context)
ex.match(
'executed command showed stderr output. Command: .*command_with_stderr'
r'[\w\W]*asd bsd')
def test_command_with_stderr_capture(commands):
"""Test `Command` substitution with `on_stderr='capture'`."""
context = LaunchContext()
command = Command(commands['with_stderr'], on_stderr='capture')
output = command.perform(context)
assert output == 'asd bsd\n'
def test_command_with_stderr_warn(commands):
"""Test `Command` substitution with `on_stderr='warn'`."""
context = LaunchContext()
command = Command(commands['with_stderr'], on_stderr='warn')
output = command.perform(context)
assert output == ''
def test_command_with_stderr_ignored(commands):
"""Test `Command` substitution ignoring stderr."""
context = LaunchContext()
command = Command(commands['with_stderr'], on_stderr='ignore')
output = command.perform(context)
assert output == ''
def test_command(commands):
"""Test a simple command."""
context = LaunchContext()
command = Command(commands['normal'])
output = command.perform(context)
assert output == 'asd bsd csd\n'