adding new validation for future dates to admin in customer DOB

Author: tiagooctp

app/code/Magento/Customer/view/base/ui_component/customer_form.xml

@@ -264,7 +264,7 @@
             </argument>
             <settings>
                 <validation>
-                    <rule name="validate-date" xsi:type="boolean">true</rule>
+                    <rule name="validate-dob" xsi:type="boolean">true</rule>
                 </validation>
                 <dataType>text</dataType>
                 <visible>true</visible>

app/code/Magento/Ui/view/base/web/js/lib/validation/rules.js

@@ -1067,6 +1067,16 @@ define([
                 return new RegExp(param).test(value);
             },
             $.mage.__('This link is not allowed.')
+        ],
+        'validate-dob': [
+            function (value, params, additionalParams) {
+                if(value === '') {
+                    return true;
+                }
+
+                return moment(value).isBefore(moment());
+            },
+            $.mage.__('The Date of Birth should not be greater than today')
         ]
     }, function (data) {
         return {