added few test cases

Author: jesroffrouk

test/validators.test.js

@@ -11860,11 +11860,20 @@ describe('Validators', () => {
     '2023-01-31',
     '2023-03',
     '2023',
+    '2020-001',
+    '2023-W01',
+    '2023-03-15T12:30Z',
+    '2023-03-15T12:30:45.1Z',
+    '2023-03-15T12:30:45.12Z',
+    '2023-03-15T12:30:45.123456Z',
+    '2020-W53-4',
+    '2009-W53-4',
   ];
 
   const invalidISO8601 = [
     '2019-W53-2',
     '2020-W52-8',
+    '2012-W53-4',
     '2019-366',
     '2023-13-01',
     '2023-02-30',
@@ -11894,6 +11903,20 @@ describe('Validators', () => {
     '20A3',
     '+001980-13-25',
     '0000-01-01',
+    '2023-0032',
+    '2023-W01-8',
+    '2023-W01-0',
+    '2023-W01-01',
+    '2023-03-15T',
+    '2023-03-15T12:',
+    '2023-03-15T12:30:Z',
+    '2023-03-15T12:30:45.',
+    '2023-03-15T12:30:45.12+2400',
+    '2023-03-15T12:30:45+2400',
+    '2023-03-15T12:30:45+2360',
+    '2023-W1',
+    '2023-W01-',
+    '2023-03-15T12:30:45.123+01',
   ];
 
   it('should validate ISO 8601 dates', () => {