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import pytest
from unittest.mock import Mock
from kombu import Exchange
from kombu.utils.imports import symbol_by_name
class test_symbol_by_name:
def test_instance_returns_instance(self):
instance = object()
assert symbol_by_name(instance) is instance
def test_returns_default(self):
default = object()
assert symbol_by_name(
'xyz.ryx.qedoa.weq:foz', default=default) is default
def test_no_default(self):
with pytest.raises(ImportError):
symbol_by_name('xyz.ryx.qedoa.weq:foz')
def test_imp_reraises_ValueError(self):
imp = Mock()
imp.side_effect = ValueError()
with pytest.raises(ValueError):
symbol_by_name('kombu.Connection', imp=imp)
def test_package(self):
assert symbol_by_name('.entity:Exchange', package='kombu') is Exchange
assert symbol_by_name(':Consumer', package='kombu')
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