def test_with_n_3():
assert consecutive_numbers(3) == [[1], [1,2], [1,2,3]]
def test_with_n_1():
assert consecutive_numbers(1) == [[1]]
def test_with_n_as_float():
"""check that an exception is raised if a float number is passed instead of an int"""
with pytest.raises(Exception):
assert consecutive_numbers(2.5)
def test_with_n_0():
assert consecutive_numbers(0) == []
def test_with_n_negative():
assert consecutive_numbers(-3) == []