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import subprocess
import unittest
from django.shortcuts import aget_object_or_404
from django.utils import inspect
class Person:
def no_arguments(self):
return None
def one_argument(self, something):
return something
def just_args(self, *args):
return args
def all_kinds(self, name, address="home", age=25, *args, **kwargs):
return kwargs
@classmethod
def cls_all_kinds(cls, name, address="home", age=25, *args, **kwargs):
return kwargs
class TestInspectMethods(unittest.TestCase):
def test_get_callable_parameters(self):
self.assertIs(
inspect._get_callable_parameters(Person.no_arguments),
inspect._get_callable_parameters(Person.no_arguments),
)
self.assertIs(
inspect._get_callable_parameters(Person().no_arguments),
inspect._get_callable_parameters(Person().no_arguments),
)
def test_get_func_full_args_no_arguments(self):
self.assertEqual(inspect.get_func_full_args(Person.no_arguments), [])
self.assertEqual(inspect.get_func_full_args(Person().no_arguments), [])
def test_get_func_full_args_one_argument(self):
self.assertEqual(
inspect.get_func_full_args(Person.one_argument), [("something",)]
)
self.assertEqual(
inspect.get_func_full_args(Person().one_argument),
[("something",)],
)
def test_get_func_full_args_all_arguments_method(self):
arguments = [
("name",),
("address", "home"),
("age", 25),
("*args",),
("**kwargs",),
]
self.assertEqual(inspect.get_func_full_args(Person.all_kinds), arguments)
self.assertEqual(inspect.get_func_full_args(Person().all_kinds), arguments)
def test_get_func_full_args_all_arguments_classmethod(self):
arguments = [
("name",),
("address", "home"),
("age", 25),
("*args",),
("**kwargs",),
]
self.assertEqual(inspect.get_func_full_args(Person.cls_all_kinds), arguments)
self.assertEqual(inspect.get_func_full_args(Person().cls_all_kinds), arguments)
def test_func_accepts_var_args_has_var_args(self):
self.assertIs(inspect.func_accepts_var_args(Person.just_args), True)
self.assertIs(inspect.func_accepts_var_args(Person().just_args), True)
def test_func_accepts_var_args_no_var_args(self):
self.assertIs(inspect.func_accepts_var_args(Person.one_argument), False)
self.assertIs(inspect.func_accepts_var_args(Person().one_argument), False)
def test_method_has_no_args(self):
self.assertIs(inspect.method_has_no_args(Person.no_arguments), True)
self.assertIs(inspect.method_has_no_args(Person().no_arguments), True)
self.assertIs(inspect.method_has_no_args(Person.one_argument), False)
self.assertIs(inspect.method_has_no_args(Person().one_argument), False)
def test_func_supports_parameter(self):
self.assertIs(
inspect.func_supports_parameter(Person.all_kinds, "address"), True
)
self.assertIs(
inspect.func_supports_parameter(Person().all_kinds, "address"),
True,
)
self.assertIs(inspect.func_supports_parameter(Person.all_kinds, "zone"), False)
self.assertIs(
inspect.func_supports_parameter(Person().all_kinds, "zone"),
False,
)
def test_func_accepts_kwargs(self):
self.assertIs(inspect.func_accepts_kwargs(Person.just_args), False)
self.assertIs(inspect.func_accepts_kwargs(Person().just_args), False)
self.assertIs(inspect.func_accepts_kwargs(Person.all_kinds), True)
self.assertIs(inspect.func_accepts_kwargs(Person().just_args), False)
class IsModuleLevelFunctionTestCase(unittest.TestCase):
@classmethod
def _class_method(cls) -> None:
return None
@staticmethod
def _static_method() -> None:
return None
def test_builtin(self):
self.assertIs(inspect.is_module_level_function(any), False)
self.assertIs(inspect.is_module_level_function(isinstance), False)
def test_from_module(self):
self.assertIs(inspect.is_module_level_function(subprocess.run), True)
self.assertIs(inspect.is_module_level_function(subprocess.check_output), True)
self.assertIs(
inspect.is_module_level_function(inspect.is_module_level_function), True
)
def test_private_function(self):
def private_function():
pass
self.assertIs(inspect.is_module_level_function(private_function), False)
def test_coroutine(self):
self.assertIs(inspect.is_module_level_function(aget_object_or_404), True)
def test_method(self):
self.assertIs(inspect.is_module_level_function(self.test_method), False)
self.assertIs(inspect.is_module_level_function(self.setUp), False)
def test_unbound_method(self):
self.assertIs(
inspect.is_module_level_function(self.__class__.test_unbound_method), True
)
self.assertIs(inspect.is_module_level_function(self.__class__.setUp), True)
def test_lambda(self):
self.assertIs(inspect.is_module_level_function(lambda: True), False)
def test_class_and_static_method(self):
self.assertIs(inspect.is_module_level_function(self._static_method), True)
self.assertIs(inspect.is_module_level_function(self._class_method), False)
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