89 lines
2.0 KiB
Python
89 lines
2.0 KiB
Python
|
# Authors: Raghav RV <rvraghav93@gmail.com>
|
||
|
|
# License: BSD 3 clause
|
||
|
|
|
||
|
|
|
||
|
|
import pickle
|
||
|
|
|
||
|
|
import pytest
|
||
|
|
|
||
|
|
from sklearn.utils.deprecation import _is_deprecated, deprecated
|
||
|
|
|
||
|
|
|
||
|
|
@deprecated("qwerty")
|
||
|
|
class MockClass1:
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
class MockClass2:
|
||
|
|
@deprecated("mockclass2_method")
|
||
|
|
def method(self):
|
||
|
|
pass
|
||
|
|
|
||
|
|
@deprecated("n_features_ is deprecated") # type: ignore
|
||
|
|
@property
|
||
|
|
def n_features_(self):
|
||
|
|
"""Number of input features."""
|
||
|
|
return 10
|
||
|
|
|
||
|
|
|
||
|
|
class MockClass3:
|
||
|
|
@deprecated()
|
||
|
|
def __init__(self):
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
class MockClass4:
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
class MockClass5(MockClass1):
|
||
|
|
"""Inherit from deprecated class but does not call super().__init__."""
|
||
|
|
|
||
|
|
def __init__(self, a):
|
||
|
|
self.a = a
|
||
|
|
|
||
|
|
|
||
|
|
@deprecated("a message")
|
||
|
|
class MockClass6:
|
||
|
|
"""A deprecated class that overrides __new__."""
|
||
|
|
|
||
|
|
def __new__(cls, *args, **kwargs):
|
||
|
|
assert len(args) > 0
|
||
|
|
return super().__new__(cls)
|
||
|
|
|
||
|
|
|
||
|
|
@deprecated()
|
||
|
|
def mock_function():
|
||
|
|
return 10
|
||
|
|
|
||
|
|
|
||
|
|
def test_deprecated():
|
||
|
|
with pytest.warns(FutureWarning, match="qwerty"):
|
||
|
|
MockClass1()
|
||
|
|
with pytest.warns(FutureWarning, match="mockclass2_method"):
|
||
|
|
MockClass2().method()
|
||
|
|
with pytest.warns(FutureWarning, match="deprecated"):
|
||
|
|
MockClass3()
|
||
|
|
with pytest.warns(FutureWarning, match="qwerty"):
|
||
|
|
MockClass5(42)
|
||
|
|
with pytest.warns(FutureWarning, match="a message"):
|
||
|
|
MockClass6(42)
|
||
|
|
with pytest.warns(FutureWarning, match="deprecated"):
|
||
|
|
val = mock_function()
|
||
|
|
assert val == 10
|
||
|
|
|
||
|
|
|
||
|
|
def test_is_deprecated():
|
||
|
|
# Test if _is_deprecated helper identifies wrapping via deprecated
|
||
|
|
# NOTE it works only for class methods and functions
|
||
|
|
assert _is_deprecated(MockClass1.__new__)
|
||
|
|
assert _is_deprecated(MockClass2().method)
|
||
|
|
assert _is_deprecated(MockClass3.__init__)
|
||
|
|
assert not _is_deprecated(MockClass4.__init__)
|
||
|
|
assert _is_deprecated(MockClass5.__new__)
|
||
|
|
assert _is_deprecated(mock_function)
|
||
|
|
|
||
|
|
|
||
|
|
def test_pickle():
|
||
|
|
pickle.loads(pickle.dumps(mock_function))
|