def add_component(self, component: Metadatable, name: str = None,
update_snapshot: bool = True) -> str:
"""
Record one component as part of this Station.
Args:
component (Any): components to add to the Station.
name (str): name of the component
update_snapshot (bool): immediately update the snapshot
of each component as it is added to the Station, default true
Returns:
str: The name assigned this component, which may have been changed
to make it unique among previously added components.
"""
try:
component.snapshot(update=update_snapshot)
except:
pass
if name is None:
name = getattr(component, 'name',
'component{}'.format(len(self.components)))
namestr = make_unique(str(name), self.components)
self.components[namestr] = component
return namestr
def test_changes(self):
self.assertEqual(make_unique('a', ('a', )), 'a_2')
self.assertEqual(make_unique('a_2', ('a_2', )), 'a_2_2')
self.assertEqual(make_unique('a', ('a', 'a_2', 'a_3')), 'a_4')
def test_no_changes(self):
for s, existing in (('a', []), ('a', {}), ('a', ('A', ' a', 'a '))):
self.assertEqual(make_unique(s, existing), s)
