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from __future__ import annotations
import sys
from datetime import timedelta
from functools import partial
from types import ModuleType
import pytest
from apscheduler import SerializationError
from apscheduler.marshalling import callable_from_ref, callable_to_ref
class DummyClass:
def meth(self):
pass
@staticmethod
def staticmeth():
pass
@classmethod
def classmeth(cls):
pass
def __call__(self):
pass
class InnerDummyClass:
@classmethod
def innerclassmeth(cls):
pass
class InheritedDummyClass(DummyClass):
@classmethod
def classmeth(cls):
pass
class TestCallableToRef:
@pytest.mark.parametrize(
"obj, error",
[
(partial(DummyClass.meth), "Cannot create a reference to a partial()"),
(lambda: None, "Cannot create a reference to a lambda"),
],
ids=["partial", "lambda"],
)
def test_errors(self, obj, error):
exc = pytest.raises(SerializationError, callable_to_ref, obj)
assert str(exc.value) == error
def test_nested_function_error(self):
def nested():
pass
exc = pytest.raises(SerializationError, callable_to_ref, nested)
assert str(exc.value) == "Cannot create a reference to a nested function"
@pytest.mark.parametrize(
"input,expected",
[
(DummyClass.meth, "test_marshalling:DummyClass.meth"),
(DummyClass.classmeth, "test_marshalling:DummyClass.classmeth"),
(
DummyClass.InnerDummyClass.innerclassmeth,
"test_marshalling:DummyClass.InnerDummyClass.innerclassmeth",
),
(DummyClass.staticmeth, "test_marshalling:DummyClass.staticmeth"),
(
InheritedDummyClass.classmeth,
"test_marshalling:InheritedDummyClass.classmeth",
),
(timedelta, "datetime:timedelta"),
],
ids=[
"unbound method",
"class method",
"inner class method",
"static method",
"inherited class method",
"timedelta",
],
)
def test_valid_refs(self, input, expected):
assert callable_to_ref(input) == expected
class TestCallableFromRef:
def test_valid_ref(self):
from logging.handlers import RotatingFileHandler
assert (
callable_from_ref("logging.handlers:RotatingFileHandler")
is RotatingFileHandler
)
def test_complex_path(self):
pkg1 = ModuleType("pkg1")
pkg1.pkg2 = "blah"
pkg2 = ModuleType("pkg1.pkg2")
pkg2.varname = lambda: None
sys.modules["pkg1"] = pkg1
sys.modules["pkg1.pkg2"] = pkg2
assert callable_from_ref("pkg1.pkg2:varname") == pkg2.varname
@pytest.mark.parametrize(
"input,error",
[(object(), TypeError), ("module", ValueError), ("module:blah", LookupError)],
ids=["raw object", "module", "module attribute"],
)
def test_lookup_error(self, input, error):
pytest.raises(error, callable_from_ref, input)
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