def test_handle_diff_delimiters():
result = add_function("//[*][%]\n1*2%3")
assert result == 6
result = add_function("//;\n1;2")
assert result == 3
result = add_function("//4\n142")
assert result == 3
def test_ignores_integers_greater_than_or_equal_to_1000():
result = add_function("2,1001")
assert result == 2
result = add_function("2,1451,5")
assert result == 7
result = add_function("2\n1001,4521,6,12")
assert result == 20
def handle_negative_numbers():
with pytest.raises(ValueError):
result = add_function("-4")
with pytest.raises(ValueError):
result = add_function("1,-2")
with pytest.raises(ValueError):
result = add_function("1,2,-3,4,5,-6,7")
with pytest.raises(ValueError):
result = add_function("-1\n2,3")
def test_invalid_delimiters():
result = add_function("//[***][%]\n1***2%3")
assert result == 6
result = add_function("//[*][%^%^%^][==]\n1*2%^%^%^3==4")
assert result == 10
def test_supports_any_len_delimeter():
result = add_function("//[***]\n1***2***3")
assert result == 6
result = add_function("//[abc][777][:(]\n1abc27773:(1")
assert result == 7
def test_add_delimiter():
result = add_function("//;\n1;2")
assert result == 3
def test_add_empty_str():
result = add_function("")
assert result == 0
def test_new_lines():
result = add_function("1\n2,3")
assert result == 6
result = add_function("1\n2\n3\n4")
assert result == 10
def test_add_many_numbers():
result = add_function("1,2,3,4,5")
assert result == 15
result = add_function("5,4,3,2,1")
assert result == 15
def test_add_two_numbers():
result = add_function("1,2")
assert result == 3
result = add_function("2,2")
assert result == 4
def test_add_one_number():
result = add_function("4")
assert result == 4