def test_launch_context_locals():
"""Test "locals" feature of LaunchContext class."""
lc = LaunchContext()
assert len(lc.get_locals_as_dict()) == 0
lc.extend_locals({'foo': 1})
assert 'foo' in lc.get_locals_as_dict()
assert lc.get_locals_as_dict()['foo'] == 1
assert lc.locals.foo == 1
with pytest.raises(AttributeError):
lc.locals.foo = 2
lc._push_locals()
assert lc.locals.foo == 1
lc.extend_locals({'foo': 2, 'bar': 3})
assert lc.locals.foo == 2
assert lc.locals.bar == 3
lc._pop_locals()
assert lc.locals.foo == 1
with pytest.raises(AttributeError):
assert lc.locals.bar == 3
with pytest.raises(RuntimeError):
lc._pop_locals()
def test_this_launch_file_path_methods():
"""Test the methods of the ThisLaunchFileDir class."""
tlfp = ThisLaunchFileDir()
lc = LaunchContext()
with pytest.raises(SubstitutionFailure):
tlfp.perform(lc)
lc.extend_locals({'current_launch_file_directory': 'foo'})
assert tlfp.perform(lc) == 'foo'
