def test_insert_index_matches_python_interpretation(self):
for insertion_index in range(-10, 10):
with self.subTest(insertion_index=insertion_index):
tl = TraitList([5, 6, 7])
pl = [5, 6, 7]
tl.insert(insertion_index, 1729)
pl.insert(insertion_index, 1729)
self.assertEqual(tl, pl)
def test_insert_validates(self):
tl = TraitList([2],
item_validator=int_item_validator,
notifiers=[self.notification_handler])
with self.assertRaises(TraitError):
tl.insert(0, 1.0)
self.assertEqual(tl, [2])
self.assertIsNone(self.index)
self.assertIsNone(self.removed)
self.assertIsNone(self.added)
def test_insert(self):
tl = TraitList([2],
item_validator=int_item_validator,
notifiers=[self.notification_handler])
tl.insert(0, 1) # [1,2]
self.assertEqual(self.index, 0)
self.assertEqual(self.removed, [])
self.assertEqual(self.added, [1])
tl.insert(-1, 3) # [1,3,2]
self.assertEqual(self.index, 1)
self.assertEqual(self.removed, [])
self.assertEqual(self.added, [3])
def test_insert_converts(self):
tl = TraitList([2, 3],
item_validator=int_item_validator,
notifiers=[self.notification_handler])
tl.insert(1, True)
self.assertEqual(tl, [2, 1, 3])
self.assertEqual(self.index, 1)
self.assertEqual(self.removed, [])
self.assertEqual(self.added, [1])
self.assertTrue(
all(type(item) is int for item in tl),
msg="Non-integers found in int-only list",
)
self.assertTrue(
all(type(item) is int for item in self.added),
msg="Event contains non-integers for int-only list",
)