def test_launch_description_get_launch_arguments():
"""Test the get_launch_arguments() method of the LaunchDescription class."""
ld = LaunchDescription([])
assert len(ld.get_launch_arguments()) == 0
ld = LaunchDescription([DeclareLaunchArgument('foo')])
la = ld.get_launch_arguments()
assert len(la) == 1
assert la[0]._conditionally_included is False
ld = LaunchDescription(
[DeclareLaunchArgument('foo', condition=IfCondition('True'))])
la = ld.get_launch_arguments()
assert len(la) == 1
assert la[0]._conditionally_included is True
ld = LaunchDescription([
IncludeLaunchDescription(
LaunchDescriptionSource(
LaunchDescription([
DeclareLaunchArgument('foo'),
]))),
])
la = ld.get_launch_arguments()
assert len(la) == 1
assert la[0]._conditionally_included is False
this_dir = os.path.dirname(os.path.abspath(__file__))
ld = LaunchDescription([
IncludeLaunchDescription(
PythonLaunchDescriptionSource(
os.path.join(this_dir,
'launch_file_with_argument.launch.py'))),
])
la = ld.get_launch_arguments()
assert len(la) == 1
assert la[0]._conditionally_included is False
ld = LaunchDescription([
IncludeLaunchDescription(
PythonLaunchDescriptionSource([
# This will prevent loading of this launch file to find arguments in it.
ThisLaunchFileDir(),
'launch_file_with_argument.launch.py',
])),
])
la = ld.get_launch_arguments()
assert len(la) == 0
def test_launch_description_get_launch_arguments():
"""Test the get_launch_arguments() method of the LaunchDescription class."""
ld = LaunchDescription([])
assert len(ld.get_launch_arguments()) == 0
ld = LaunchDescription([DeclareLaunchArgument('foo')])
la = ld.get_launch_arguments()
assert len(la) == 1
assert la[0]._conditionally_included is False
ld = LaunchDescription(
[DeclareLaunchArgument('foo', condition=IfCondition('True'))])
la = ld.get_launch_arguments()
assert len(la) == 1
assert la[0]._conditionally_included is True
ld = LaunchDescription([
IncludeLaunchDescription(
LaunchDescriptionSource(
LaunchDescription([
DeclareLaunchArgument('foo'),
]))),
])
la = ld.get_launch_arguments()
assert len(la) == 1
this_dir = os.path.dirname(os.path.abspath(__file__))
ld = LaunchDescription([
IncludeLaunchDescription(
PythonLaunchDescriptionSource(
os.path.join(this_dir,
'launch_file_with_argument.launch.py'))),
])
la = ld.get_launch_arguments()
assert len(la) == 1
# From issue #144: get_launch_arguments was broken when an entitity had conditional
# sub entities
class EntityWithConditional(LaunchDescriptionEntity):
def describe_conditional_sub_entities(self):
return [('String describing condition',
[DeclareLaunchArgument('foo')])]
ld = LaunchDescription([EntityWithConditional()])
la = ld.get_launch_arguments()
assert len(la) == 1