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import types
import unittest
import warnings
from websockets.imports import *
foo = object()
bar = object()
class ImportsTests(unittest.TestCase):
def setUp(self):
self.mod = types.ModuleType("tests.test_imports.test_alias")
self.mod.__package__ = self.mod.__name__
def test_get_alias(self):
lazy_import(
vars(self.mod),
aliases={"foo": "...test_imports"},
)
self.assertEqual(self.mod.foo, foo)
def test_get_deprecated_alias(self):
lazy_import(
vars(self.mod),
deprecated_aliases={"bar": "...test_imports"},
)
with warnings.catch_warnings(record=True) as recorded_warnings:
warnings.simplefilter("always")
self.assertEqual(self.mod.bar, bar)
self.assertEqual(len(recorded_warnings), 1)
warning = recorded_warnings[0].message
self.assertEqual(
str(warning), "tests.test_imports.test_alias.bar is deprecated"
)
self.assertEqual(type(warning), DeprecationWarning)
def test_dir(self):
lazy_import(
vars(self.mod),
aliases={"foo": "...test_imports"},
deprecated_aliases={"bar": "...test_imports"},
)
self.assertEqual(
[item for item in dir(self.mod) if not item[:2] == item[-2:] == "__"],
["bar", "foo"],
)
def test_attribute_error(self):
lazy_import(vars(self.mod))
with self.assertRaises(AttributeError) as raised:
self.mod.foo
self.assertEqual(
str(raised.exception),
"module 'tests.test_imports.test_alias' has no attribute 'foo'",
)
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