def test_clear(self):
"""Verifies that clear works as expected"""
h = Assoc(_u.new_assoc(), freeit=True)
a = Node.from_ptr(parse_simple_expression("a.car = 3"), freeit=False)
h[a] = a
h.clear()
self.assertFalse(a in h)
def test_copy(self):
"""Tests the copy behavior"""
h = Assoc(_u.new_assoc(), freeit=True)
a = Node.from_ptr(parse_simple_expression("a.car = 3"), freeit=False)
h[a] = a
h2= h.copy()
self.assertTrue(a in h2)
def empty(key_conversion=NodeConversion(), value_conversion=NodeConversion(), initial_capa=0, freeit=False):
"""
Creates an empty assoc
:param key_conversion: the conversion for the key (object <--> pointer)
:param value_conversion: the conversion of the value (object <--> pointer)
:param initial capa: the initial capacity of the associative array
:param freeit: a flag indicating whether or not this object should be freed
upon garbage collection
:return: a new empty Assoc
"""
if initial_capa == 0:
return Assoc(_utils.new_assoc(), key_conversion, value_conversion, freeit=freeit)
else:
return Assoc(_utils.new_assoc_with_size(initial_capa), key_conversion, value_conversion, freeit=freeit)
def test_associative_array(self):
"""
This function tests the basic functions of the associative array proto
"""
h = Assoc(_u.new_assoc(), freeit=True)
a = Node.from_ptr(parse_simple_expression("a.car = 3"), freeit=False)
# __contains__
self.assertFalse(a in h)
# __setitem__
h[a] = a
self.assertTrue(a in h)
# __getitem__
self.assertEqual(h[a], a)
# __delitem__
del h[a]
self.assertFalse(a in h)