cpython/Lib/test/test_userlist.py

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1999-03-26 12:20:45 -04:00
# Check every path through every method of UserList
from UserList import UserList
from test import test_support, list_tests
class UserListTest(list_tests.CommonTest):
type2test = UserList
def test_getslice(self):
super(UserListTest, self).test_getslice()
l = [0, 1, 2, 3, 4]
u = self.type2test(l)
for i in range(-3, 6):
self.assertEqual(u[:i], l[:i])
self.assertEqual(u[i:], l[i:])
for j in xrange(-3, 6):
self.assertEqual(u[i:j], l[i:j])
def test_add_specials(self):
u = UserList("spam")
u2 = u + "eggs"
self.assertEqual(u2, list("spameggs"))
def test_radd_specials(self):
u = UserList("eggs")
u2 = "spam" + u
self.assertEqual(u2, list("spameggs"))
u2 = u.__radd__(UserList("spam"))
self.assertEqual(u2, list("spameggs"))
def test_iadd(self):
super(UserListTest, self).test_iadd()
u = [0, 1]
u += UserList([0, 1])
self.assertEqual(u, [0, 1, 0, 1])
def test_mixedcmp(self):
u = self.type2test([0, 1])
self.assertEqual(u, [0, 1])
self.assertNotEqual(u, [0])
self.assertNotEqual(u, [0, 2])
def test_mixedadd(self):
u = self.type2test([0, 1])
self.assertEqual(u + [], u)
self.assertEqual(u + [2], [0, 1, 2])
def test_getitemoverwriteiter(self):
# Verify that __getitem__ overrides *are* recognized by __iter__
class T(self.type2test):
def __getitem__(self, key):
return str(key) + '!!!'
self.assertEqual(iter(T((1,2))).next(), "0!!!")
def test_main():
with test_support.check_py3k_warnings(
(".+__(get|set|del)slice__ has been removed", DeprecationWarning)):
test_support.run_unittest(UserListTest)
if __name__ == "__main__":
test_main()