Added test cases for allow_idn option

test/validators.test.js

@@ -140,6 +140,29 @@ describe('Validators', () => {
     });
   });
 
+  it('should not validate email addresses with non-ASCII domain names if allow_idn is set to false', () => {
+    test({
+      validator: 'isEmail',
+      args: [{ allow_idn: false }],
+      valid: [],
+      invalid: [
+        "ka25maj@gˇmail.com", // Original issue example
+        "i18n@exampلe.com",   // Arabic
+        "i18n@EXАМПЛЕ.com",   // Cyrillic
+        "i18n@exамple.com",   // Cyrillic
+        'i18n@éxample.com',   // French
+        'i18n@eßample.com',   // German
+        "i18n@EXΑΜΠΛΕ.com",   // Greek
+        "i18n@exαmple.com",   // Greek
+        'i18n@exampłe.com',   // Polish
+        'i18n@eซample.com',   // Thai
+        "i18n@例題.com",      // Chinese
+        "i18n@例え.com",      // Japanese
+        "i18n@사례.com",      // Korean
+      ],
+    });
+  });
+
   it('should validate email addresses with display names', () => {
     test({
       validator: 'isEmail',
@@ -828,6 +851,29 @@ describe('Validators', () => {
     });
   });
 
+  it('should not validate URLs with non-ASCII domain names if allow_idn is set to false', () => {
+    test({
+      validator: 'isURL',
+      args: [{ allow_idn: false }],
+      valid: [],
+      invalid: [
+        "gˇmail.com",    // Original issue example
+        "exampلe.com",   // Arabic
+        "EXАМПЛЕ.com",   // Cyrillic
+        "exамple.com",   // Cyrillic
+        'éxample.com',   // French
+        'eßample.com',   // German
+        "EXΑΜΠΛΕ.com",   // Greek
+        "exαmple.com",   // Greek
+        'exampłe.com',   // Polish
+        'eซample.com',   // Thai
+        "例題.com",      // Chinese
+        "例え.com",      // Japanese
+        "사례.com",      // Korean
+      ],
+    });
+  });
+
   it('should validate MAC addresses', () => {
     test({
       validator: 'isMACAddress',