def _GetName(entity, fn):
"""Tries to get name of an entity.
@type entity: string or dict
@param fn: Function retrieving name from entity
"""
if isinstance(entity, basestring):
result = entity
else:
result = fn(entity)
if not ht.TNonEmptyString(result):
raise Exception("Invalid name '%s'" % result)
return result
def testNonEmptyString(self):
self.assertTrue(ht.TNonEmptyString("xyz"))
self.assertTrue(ht.TNonEmptyString("Hello World"))
self.assertFalse(ht.TNonEmptyString(""))
self.assertFalse(ht.TNonEmptyString(None))
self.assertFalse(ht.TNonEmptyString([]))