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April 2, 2024 11:31
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Henkilötunnus 2023 regex - new finnish social security number regex to identify
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| // Henkilötunnus 2023 regex - new finnish social security, regex to identify potential numbers | |
| // Does not actually validate using the checksum | |
| // Allows for case-insensitivity using the /i in the end. | |
| // Includes test variables and tests, just copy the old-form regex or new one | |
| const oldSsnRegex = /^(\d{6}[-+A]\d{3}\S{1})$/i; | |
| /** Compatible with old-form */ | |
| const newSsnRegex = /^(\d{6}[a-zA-Z]\d{3}\S{1})$/i; | |
| /** Old-form social security numbers | |
| * Generated using https://www.lintukoto.net/muut/henkilotunnus/ | |
| * Note: Could be, by random chance, actual SSN's | |
| */ | |
| const oldSocialSecurityNumbers = ['080575-7270', '200271-500Y', '210152-804P', '010552-8716', '060245-337Y', '010686-629Y', '091188-382P', '020504A902E']; | |
| /** Test-set of imaginary new social-security numbers | |
| * Incompatible with new SsnRegex | |
| Source from Digi- ja Väestötietovirasto https://dvv.fi/hetu-uudistus | |
| */ | |
| const newSocialSecurityNumbers = [ | |
| '010594Y9032', | |
| '010594Y9021', | |
| '020594X903P', | |
| '020594X902N', | |
| '030594W903B', | |
| '030694W9024', | |
| '040594V9030', | |
| '040594V902Y', | |
| '050594U903M', | |
| '050594U902L', | |
| '010516B903X', | |
| '010516B902W', | |
| '020516C903K', | |
| '020516C902J', | |
| '030516D9037', | |
| '030516D9026', | |
| '010501E9032', | |
| '020502E902X', | |
| '020503F9037', | |
| '020504B904H', | |
| ]; | |
| describe('Finnish SSN, simple-regex to detect, does not validate', () => { | |
| // Invalid SSNs for testing purpose | |
| const invalidSSNs = ['123-456-789', '0000-00-0000', 'invalid-ssn', '200271-500YZfsdfsfes', '324142-AFBS', '200271-500YZ', '200271-11500YZ', '120345-33AY', '120345333AY', '1203459331Y']; | |
| oldSocialSecurityNumbers.forEach((ssn) => { | |
| it(`validates old-format SSN: ${ssn}`, () => { | |
| expect(oldSsnRegex.test(ssn)).toBe(true); | |
| }); | |
| }); | |
| newSocialSecurityNumbers.forEach((ssn) => { | |
| it(`validates new-format SSN: ${ssn}`, () => { | |
| expect(newSsnRegex.test(ssn)).toBeTruthy(); | |
| }); | |
| }); | |
| newSocialSecurityNumbers.forEach((ssn) => { | |
| it(`invalid new SSN vs. old Regex: ${ssn}`, () => { | |
| expect(oldSsnRegex.test(ssn)).toBeFalsy(); | |
| }); | |
| }); | |
| invalidSSNs.forEach((ssn) => { | |
| it(`invalidates old SSN: ${ssn}`, () => { | |
| expect(oldSsnRegex.test(ssn)).toBeFalsy(); | |
| }); | |
| }); | |
| invalidSSNs.forEach((ssn) => { | |
| it(`invalidates old SSNs, using the new regex: ${ssn}`, () => { | |
| expect(newSsnRegex.test(ssn)).toBeFalsy(); | |
| }); | |
| }); | |
| }); |
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