單元測試採用 nose 套件來管理、執行。
所有 nose 可用的 assert 名稱都跟 unitest.TestCase 底下的的方法名稱相同，但所有方法名稱都依照 PEP 8#function-names 重新命名。以下是可是用的方法列表(正確方法名稱請參考 unitest)：
The following table lists the most commonly used methods:
| Method In unitest | Checks that | Method In nose |
|---|---|---|
assertEqual(a, b) |
a == b |
assert_equal(a, b) |
assertNotEqual(a, b) |
a != b |
assert_not_equal(a, b) |
assertTrue(x) |
bool(x) is True |
assert_true(x) |
assertFalse(x) |
bool(x) is False |
assert_false(x) |
assertIs(a, b) |
a is b |
assert_is(a, b) |
assertIsNot(a, b) |
a is not b |
assert_is_not(a, b) |
assertIsNone(x) |
x is None |
assert_is_none(x) |
assertIsNotNone(x) |
x is not None |
assert_is_not_none(x) |
assertIn(a, b) |
a in b |
assert_in(a, b) |
assertNotIn(a, b) |
a not in b |
assert_not_in(a, b) |
assertIsInstance(a, b) |
isinstance(a, b) |
assert_is_instance(a, b) |
assertNotIsInstance(a, b) |
not isinstance(a, b) |
assert_is_not_instance(a, b) |
It is also possible to check the production of exceptions, warnings, and log messages using the following methods:
| Method In unitest | Checks that | Method In nose |
|---|---|---|
assertRaises(exc, fun, *args, **kwds) |
fun(*args, **kwds) raises exc |
assert_raises(exc, fun, *args, **kwds) |
assertRaisesRegex(exc, r, fun, *args, **kwds) |
fun(*args, **kwds) raises exc and the message matches regex r |
assert_raises_regex(exc, r, fun, *args, **kwds) |
assertWarns(warn, fun, *args, **kwds) |
fun(*args, **kwds) raises warn |
assert_warns(warn, fun, *args, **kwds) |
assertWarnsRegex(warn, r, fun, *args, **kwds) |
fun(*args, **kwds) raises warn and the message matches regex r |
assert_warns_regex(warn, r, fun, *args, **kwds) |
assertLogs(logger, level) |
The with block logs on logger with minimum level |
assert_logs(logger, level) |
There are also other methods used to perform more specific checks, such as:
| Method In unitest | Checks that | Method In nose |
|---|---|---|
assertAlmostEqual(a, b) |
round(a-b, 7) == 0 |
assert_almost_equal(a, b) |
assertNotAlmostEqual(a, b) |
round(a-b, 7) != 0 |
assert_not_almost_equal(a, b) |
assertGreater(a, b) |
a > b |
assert_greater(a, b) |
assertGreaterEqual(a, b) |
a >= b |
assert_greater_equal(a, b) |
assertLess(a, b) |
a < b |
assert_less(a, b) |
assertLessEqual(a, b) |
a <= b |
assert_less_equal(a, b) |
assertRegex(s, r) |
r.search(s) |
assert_regex(a, b) |
assertNotRegex(s, r) |
not r.search(s) |
assert_not_regex(s, r) |
assertCountEqual(a, b) |
a and b have the same elements in the same number, regardless of their order | assert_count_equal(a, b) |
The list of type-specific methods automatically used by assertEqual() are summarized in the following table. Note that it’s usually not necessary to invoke these methods directly:
| Method In unitest | Used to compare | Method In nose |
|---|---|---|
assertMultiLineEqual(a, b) |
strings | assert_multi_line_equal(a, b) |
assertSequenceEqual(a, b) |
sequences | assert_sequence_equal(a, b) |
assertListEqual(a, b) |
lists | assert_list_equal(a, b) |
assertTupleEqual(a, b) |
tuples | assert_tuple_equal(a, b) |
assertSetEqual(a, b) |
sets or frozensets | assert_set_equal(a, b) |
assertDictEqual(a, b) |
dicts | assert_dict_equal(a, b) |