def test_remove_empty_list(self):
"""Remove from an empty LinkedList."""
ll = LinkedList()
prestring = ll.__str__()
ll.remove(self.insert_float)
poststring = ll.__str__()
self.assertEqual(prestring, poststring)
def test_remove_list_without_value(self):
"""Remove from a populated LinkedList a value it doesn't contain."""
ll = LinkedList()
ll.insert(self.insert_float)
ll.insert(self.insert_int)
ll.insert(self.insert_string)
prestring = ll.__str__()
ll.remove(self.value_not_in_list)
poststring = ll.__str__()
self.assertEqual(prestring, poststring)
def test_str_many_list(self):
"""Get the string representation of a LinkedList with many values."""
ll = LinkedList()
ll.insert(self.insert_float)
ll.insert(self.insert_int)
ll.insert(self.insert_string)
self.assertEqual(ll.__str__(), '(' + "'" + self.insert_string +
"', " + str(self.insert_int) + ', ' + str(self.insert_float) +
')')
def test_remove_list_with_value_at_tail(self):
"""Remove from a populated LinkedList a value it contains at its tail."""
ll = LinkedList()
ll.insert(self.insert_float)
ll.insert(self.insert_int)
ll.insert(self.insert_string)
ll.remove(self.insert_float)
expected = '(' + "'" + self.insert_string + "'" + ', ' + \
str(self.insert_int) + ')'
poststring = ll.__str__()
self.assertEqual(expected, poststring)
def test_str_one_list(self):
"""Get the string representation of a LinkedList with one value."""
ll = LinkedList()
ll.insert(self.insert_float)
self.assertEqual(ll.__str__(), '(' + str(self.insert_float) + ')')
def test_str_empty_list(self):
"""Get the string representation of an empty LinkedList."""
ll = LinkedList()
self.assertEqual(ll.__str__(), '()')
