Pytest Other exception is raised

def fib(n):
    if n < 1:
        raise Exception(f'Invalid parameter {n}')
    a, b = 1, 1
    for _ in range(1, n):
        a, b = b, a+b
    return a

import pytest
from fibonacci import fib

def test_fib():
    assert fib(10) == 55

def test_fib_negative():
    with pytest.raises(Exception) as err:
        fib(-1)
    assert err.type == ValueError
    assert str(err.value) == 'Invalid parameter -1'

def test_fib_negative_again():
    with pytest.raises(ValueError) as err:
        fib(-1)
    assert str(err.value) == 'Invalid parameter -1'

Output:

============================= test session starts ==============================
platform linux -- Python 3.8.6, pytest-6.1.2, py-1.9.0, pluggy-0.13.1
rootdir: /home/gabor/work/slides/python/examples/pytest/fib5
plugins: flake8-1.0.6, dash-1.17.0
collected 3 items

test_fibonacci.py .FF                                                    [100%]

=================================== FAILURES ===================================
______________________________ test_fib_negative _______________________________

    def test_fib_negative():
        with pytest.raises(Exception) as err:
            fib(-1)
>       assert err.type == ValueError
E       AssertionError: assert <class 'Exception'> == ValueError
E        +  where <class 'Exception'> = <ExceptionInfo Exception('Invalid parameter -1') tblen=2>.type

test_fibonacci.py:10: AssertionError
___________________________ test_fib_negative_again ____________________________

    def test_fib_negative_again():
        with pytest.raises(ValueError) as err:
>           fib(-1)

test_fibonacci.py:15: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

n = -1

    def fib(n):
        if n < 1:
>           raise Exception(f'Invalid parameter {n}')
E           Exception: Invalid parameter -1

fibonacci.py:3: Exception
=========================== short test summary info ============================
FAILED test_fibonacci.py::test_fib_negative - AssertionError: assert <class '...
FAILED test_fibonacci.py::test_fib_negative_again - Exception: Invalid parame...
========================= 2 failed, 1 passed in 0.03s ==========================