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from typing import Dict, Set, List, Tuple, Type, Callable, Any, Awaitable, Union
from unittest import TestCase
import numpy
from typish import get_type, instance_of, NoneType, Unknown
class TestGetType(TestCase):
def test_get_type_list(self):
self.assertEqual(List[int], get_type([1, 2, 3]))
self.assertEqual(List[object], get_type([1, 2, '3']))
self.assertEqual(List[Unknown], get_type([]))
def test_get_type_list_with_union(self):
self.assertEqual(List[Union[int, str, float]], get_type([1, '2', 3.0], True))
def test_get_type_set(self):
self.assertEqual(Set[int], get_type({1, 2, 3}))
self.assertEqual(Set[object], get_type({1, 2, '3'}))
self.assertEqual(Set[Unknown], get_type(set([])))
def test_get_type_dict(self):
self.assertEqual(Dict[str, int], get_type({'a': 1, 'b': 2}))
self.assertEqual(Dict[int, object], get_type({1: 'a', 2: 2}))
self.assertEqual(Dict[Unknown, Unknown], get_type({}))
def test_get_type_tuple(self):
self.assertEqual(Tuple[int, int, int], get_type((1, 2, 3)))
self.assertEqual(Tuple[int, str, str], get_type((1, '2', '3')))
def test_get_type_callable(self):
def func1(x: int, y: str) -> object:
pass
def func2() -> int:
pass
def func3(x: int):
pass
def func4():
pass
def func5(x):
pass
def func6(l: List[List[List[int]]]):
pass
self.assertEqual(Callable[[int, str], object], get_type((func1)))
self.assertEqual(Callable[[], int], get_type(func2))
self.assertEqual(Callable[[int], NoneType], get_type(func3))
self.assertEqual(Callable, get_type(func4))
self.assertEqual(Callable[[Any], NoneType], get_type(func5))
self.assertEqual(Callable[[List[List[List[int]]]], NoneType], get_type(func6))
def test_get_type_async(self):
async def func(x: int) -> str:
return '42'
self.assertEqual(Callable[[int], Awaitable[str]], get_type(func))
def test_get_type_lambda(self):
self.assertEqual(Callable[[Unknown, Unknown], Unknown], get_type(lambda x, y: 42))
self.assertEqual(Callable[[], Unknown], get_type(lambda: 42))
def test_get_type_deep(self):
self.assertEqual(List[List[int]], get_type([[1, 2], [3]]))
self.assertEqual(List[List[object]], get_type([[1, 2], ['3']]))
deep = [[[1, 2]], [[3]], [[4], [5, '6']]]
self.assertEqual(List[List[List[object]]], get_type(deep))
self.assertEqual(Dict[str, List[List[List[object]]]], get_type({'a': deep}))
def test_get_type_type(self):
self.assertEqual(Type[int], get_type(int))
def test_get_type_some_class(self):
class SomeRandomClass:
pass
self.assertEqual(SomeRandomClass, get_type(SomeRandomClass()))
def test_get_type_any(self):
any_type = get_type(Any)
self.assertEqual(Any, any_type)
def test_get_type_union(self):
union_type = get_type(Union[int, str])
# The following line should not raise.
Union[(union_type,)]
self.assertTrue(instance_of(Union[int, str], union_type))
def test_get_type_of_ndarray(self):
arr_type = get_type(numpy.array([1, 2, 3]))
self.assertEqual(numpy.ndarray, arr_type)
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