test(idn-email): add Unicode NFC normalization cases

Author: vtushar06

tests/draft2019-09/optional/format/idn-email.json

@@ -50,6 +50,16 @@
                 "description": "a valid e-mail address",
                 "data": "joe.bloggs@example.com",
                 "valid": true
+            },
+            {
+                "description": "a domain label that is not in Unicode NFC is invalid",
+                "data": "user@cafe\u0301.com",
+                "valid": false
+            },
+            {
+                "description": "a local part that is not in Unicode NFC is valid",
+                "data": "cafe\u0301@example.com",
+                "valid": true
             }
         ]
     }

tests/draft2020-12/optional/format/idn-email.json

@@ -50,6 +50,16 @@
                 "description": "a valid e-mail address",
                 "data": "joe.bloggs@example.com",
                 "valid": true
+            },
+            {
+                "description": "a domain label that is not in Unicode NFC is invalid",
+                "data": "user@cafe\u0301.com",
+                "valid": false
+            },
+            {
+                "description": "a local part that is not in Unicode NFC is valid",
+                "data": "cafe\u0301@example.com",
+                "valid": true
             }
         ]
     }

tests/draft7/optional/format/idn-email.json

@@ -47,6 +47,16 @@
                 "description": "a valid e-mail address",
                 "data": "joe.bloggs@example.com",
                 "valid": true
+            },
+            {
+                "description": "a domain label that is not in Unicode NFC is invalid",
+                "data": "user@cafe\u0301.com",
+                "valid": false
+            },
+            {
+                "description": "a local part that is not in Unicode NFC is valid",
+                "data": "cafe\u0301@example.com",
+                "valid": true
             }
         ]
     }

tests/v1/format/idn-email.json

@@ -55,6 +55,16 @@
                 "description": "an invalid e-mail address",
                 "data": "2962",
                 "valid": false
+            },
+            {
+                "description": "a domain label that is not in Unicode NFC is invalid",
+                "data": "user@cafe\u0301.com",
+                "valid": false
+            },
+            {
+                "description": "a local part that is not in Unicode NFC is valid",
+                "data": "cafe\u0301@example.com",
+                "valid": true
             }
         ]
     }