def test_xor(self):
with self.subTest('Some ^ Some'):
self.assertTrue(Some2(1).xor(Some2(2)).is_none())
with self.subTest('Some ^ None'):
self.assertEqual(Some2(1).xor(None2).unwrap(), 1)
with self.subTest('None ^ Some'):
self.assertTrue(None2.xor(Some2(2)).unwrap(), 2)
with self.subTest('None ^ None'):
self.assertTrue(None2.xor(None2).is_none())
def test_filter(self):
with self.subTest('Some :: true'):
self.assertEqual(Some2(1).filter(bool).unwrap(), 1)
with self.subTest('Some :: false'):
self.assertTrue(Some2(0).filter(bool).is_none())
with self.subTest('None'):
self.assertTrue(None2.filter(bool).is_none())
def test_or_else(self):
with self.subTest('Some'):
self.assertEqual(
Some2(1).or_else(lambda: Some2(object())).unwrap(), 1)
with self.subTest('None'):
self.assertEqual(None2.or_else(lambda: 1), 1)
def test_and_then(self):
with self.subTest('Some'):
self.assertEqual(
Some2(object()).and_then(lambda: Some2(1)).unwrap(), 1)
with self.subTest('None'):
self.assertTrue(None2.and_then(lambda: Some2(object())).is_none())
def test_and(self):
with self.subTest('Some'):
self.assertEqual((Some2(object()) & Some2(1)).unwrap(), 1)
with self.subTest('None'):
self.assertTrue(None2.and_(object()).is_none())
def test_map_or_else(self):
with self.subTest('Some'):
self.assertEqual(Some2(-1).map_or_else(lambda: 2, abs), 1)
with self.subTest('None'):
self.assertEqual(None2.map_or_else(lambda: 2, abs), 2)
def test_map(self):
with self.subTest('Some'):
self.assertEqual(Some2(-1).map(abs).unwrap(), 1)
with self.subTest('None'):
self.assertTrue(None2.map(abs).is_none())
def test_unwrap_or_else(self):
with self.subTest('Some'):
self.assertEqual(Some2(1).unwrap_or_else(lambda: 2), 1)
with self.subTest('None'):
self.assertEqual(None2.unwrap_or_else(lambda: 2), 2)
def test_unwrap(self):
with self.subTest('Some'):
self.assertEqual(Some2(1).unwrap(), 1)
with self.subTest('None'):
with self.assertRaises(RuntimeError):
None2.unwrap()
def test_is_none(self):
with self.subTest('Some'):
self.assertFalse(Some2(1).is_none())
with self.subTest('None'):
self.assertTrue(None2.is_none())
def test_expect(self):
with self.subTest('Some'):
self.assertEqual(Some2(1).expect(RuntimeError), 1)
with self.subTest('None'):
with self.assertRaises(RuntimeError):
None2.expect(RuntimeError, 'lol')