🧪 TEST: add missing isIBAN tests

Author: Danial

test/validators/isIBAN.test.js

@@ -0,0 +1,29 @@
+import test from '../testFunctions';
+
+describe('isIBAN', () => {
+  it('should validate IBANs', () => {
+    test({
+      validator: 'isIBAN',
+      valid: [
+        'IR576406610070915600106898',
+      ],
+      invalid: [
+        // Invalid format/checksum
+        'IR545049154806779008008299',
+
+        // Invalid structure
+        'IR5750491548067790080082',
+
+        // Country code not in whitelist when specified
+        // Empty/null values
+        '',
+        '   ',
+
+        // Random invalid strings
+        'not an iban',
+        '1234567890',
+        'ABCD1234567890',
+      ],
+    });
+  });
+});