from src.jcloud_docsgen.utils import assert_that_is_instance
import pytest
import types

class TestType: ...
TestType.__name__ = 'NOT TestType'

@pytest.mark.parametrize('obj,class_or_tuple', [
    (1, int),
    (1, (int,)),
    (1, str | int),
    (1, int | str | list),
    (TestType(), TestType),
    (None, types.NoneType),
])
def test_assert_that_is_instance(obj, class_or_tuple):
    assert_that_is_instance(obj, class_or_tuple)

@pytest.mark.parametrize('obj,class_or_tuple,expected_exception_msg', [
    (1, str, 'expected \'str\', got \'int\''),
    (1, (str,), 'expected \'str\', got \'int\''),
    (1, str | float, 'expected either \'str\' or \'float\', got \'int\''),
    (1, str | float | list, 'expected either \'str\', \'float\' or \'list\', got \'int\''),
    (1, TestType, 'expected \'NOT TestType\', got \'int\''),
])
def test_assert_that_is_instance_exceptions(obj, class_or_tuple, expected_exception_msg):
    with pytest.raises(TypeError) as exc_info:
        assert_that_is_instance(obj, class_or_tuple)
    assert str(exc_info.value) == expected_exception_msg