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Ensure serial is not 000 #4

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Jun 16, 2020
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Ensure serial is not 000 #4

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10 changes: 8 additions & 2 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -137,9 +137,10 @@ impl Personnummer {
self.date.month(),
self.date.day()
);

let to_control = format!("{:06}{:03}", ymd, self.serial);

luhn(to_control) == self.control
self.serial > 0 && luhn(to_control) == self.control
}

/// Return the age of the person holding the personal identity number. The dates used for the
Expand Down Expand Up @@ -211,7 +212,12 @@ mod tests {

#[test]
fn test_valid_date_invalid_digits() {
let cases = vec!["19900101-1111", "20160229-1111", "6403273814"];
let cases = vec![
"19900101-1111",
"20160229-1111",
"6403273814",
"20150916-0006",
];

for tc in cases {
assert!(!Personnummer::new(tc).valid());
Expand Down