Commentator2.0
afa5b924cd
currently, there is a small helper funciton in lang_util to check if something is of a list type generic to improve re-usability, this function is moved to utils and improved to be also check for nested iterables and such Change-Id: I92984daa4c4decf13d340a2ea5e52f724cee800e
88 lines
2.1 KiB
Python
88 lines
2.1 KiB
Python
from collections.abc import Callable, Generator
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from typing import Literal, Any
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import pytest
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from functional2.testlib.utils import is_value_of_type
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def test_list_type_valid():
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assert is_value_of_type([1, 2, 3], list[int])
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def test_list_type_valid_multi_type():
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assert is_value_of_type([1, "a", 2], list[int | str])
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def test_list_type_invalid_single_fail():
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assert not is_value_of_type([1, 2, "a"], list[int])
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def test_list_type_invalid_all_wrong():
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assert not is_value_of_type([1, 2, 3], list[str])
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def test_list_type_nested():
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assert is_value_of_type([[1], [2, 3], [4]], list[list[int]])
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def test_list_type_nested_single_invalid():
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assert not is_value_of_type([[1], [2, 3], ["a"]], list[list[int]])
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def test_weird_type_valid():
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assert is_value_of_type(42, Literal[42])
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def test_type_type():
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class Foo: ...
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assert is_value_of_type(Foo, type[Foo])
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def test_type_doesnt_allow_generator():
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def foo():
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yield 1
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with pytest.raises(ValueError, match="Unsupported expected_type.+"):
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is_value_of_type(foo, Generator[int, None, None])
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def test_type_doesnt_allow_callable():
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def foo(a): # noqa: ANN001, ANN202: dummy stuff within testing, nothing external
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return "a" + str(a)
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with pytest.raises(ValueError, match="Unsupported expected_type.+"):
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is_value_of_type(foo, Callable[[int], str])
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def test_type_allows_none():
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assert is_value_of_type(None, type[None])
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def test_doesnt_allow_generic():
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class X[T]: ...
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with pytest.raises(ValueError, match="Unsupported expected_type.+"):
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is_value_of_type(0, X[int])
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def test_type_dict_checks_valid():
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d = {"a": 1, "b": 2}
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assert is_value_of_type(d, dict[str, int])
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def test_type_dict_key_invalid():
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d = {"a": 1, 1: 2}
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assert not is_value_of_type(d, dict[str, int])
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def test_type_dict_value_invalid():
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d = {"a": 1, "b": "2"}
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assert not is_value_of_type(d, dict[str, int])
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def test_type_allows_any():
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assert is_value_of_type(1, Any)
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assert is_value_of_type("a", Any)
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assert is_value_of_type(lambda x: x, Any)
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