Merge pull request #56 from koblas/fr_nif_checksum

fix: checksum calculation for fr/nif
koblas · Jun 22, 2023 · 1a86212 · 1a86212
2 parents 2a95a45 + 78663e7
commit 1a86212
Show file tree

Hide file tree

Showing 2 changed files with 15 additions and 2 deletions.
diff --git a/src/fr/nif.spec.ts b/src/fr/nif.spec.ts
@@ -8,10 +8,16 @@ describe('fr/nif', () => {
     expect(result).toEqual('07 01 987 765 432');
   });
 
+  it('validate:3023217600053', () => {
+    const result = validate('302 321 7600 053');
+
+    expect(result.isValid && result.compact).toEqual('3023217600053');
+  });
+
   it('validate:0701987765432', () => {
-    const result = validate('0701987765432');
+    const result = validate('0701987765493');
 
-    expect(result.isValid && result.compact).toEqual('0701987765432');
+    expect(result.isValid && result.compact).toEqual('0701987765493');
   });
 
   it('validate:12345678', () => {

diff --git a/src/fr/nif.ts b/src/fr/nif.ts
@@ -54,6 +54,13 @@ const impl: Validator = {
       return { isValid: false, error: new exceptions.InvalidFormat() };
     }
 
+    const [prefix, check] = strings.splitAt(value, 10);
+    const pvalue = parseInt(prefix, 10);
+
+    if (String(pvalue % 511).padStart(3, '0') !== check) {
+      return { isValid: false, error: new exceptions.InvalidChecksum() };
+    }
+
     return {
       isValid: true,
       compact: value,