def test_factorial():
assert factorial.fact(4) == 4 * 3 * 2 * 1
def test_factorial_zero():
assert factorial.fact(0) == 1
def test_xfact():
assert factorial.fact(4)==24
def test_int():
assert type(factorial.fact(5)) is int
def test_factorial_with_0():
assert factorial.fact(0) == 1
def test_factorial_with_5():
assert factorial.fact(5) == 120
def test_factorial_1():
assert factorial.fact(0) == 1
def test_factorial_2():
assert factorial.fact(3) == 6
def test_factorial():
assert factorial.fact(2)==2
def test_zero_factorial():
assert factorial.fact(0)==1
def test_factorial_string():
with pytest.raises(Exception):
assert fact("hello")
def test_factorial_4():
assert fact(4) == 24
def test_factorial_negative():
assert fact(-3) == "Invalid input"