def test_removeOption_noneLeft(self):
"""removeOption should cull options and return F when none left."""
test = SearchNode(SearchNodeHelper.alphabet)
num_options = len(test.Options)
#removeOption num_options times: that should get 'em all
for i in xrange(num_options): some_left = test.removeOption()
#return value should be false (no options remain)
self.assertEqual(some_left, False)
def test_removeOption_someLeft(self):
"""removeOption should cull options and return T when some left."""
#create a search node and get its current value
test = SearchNode(SearchNodeHelper.alphabet)
last_val = test.Value
some_left = test.removeOption()
#new current value must be different from old
#and return value must be true
self.assertNotEqual(test.Value, last_val)
self.assertEqual(some_left, True)
