fix(forms): parse exponential notation in numberInputType parser

Closes #12121

Author: caitp

src/ng/directive/input.js

@@ -13,7 +13,7 @@
 var ISO_DATE_REGEXP = /\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+([+-][0-2]\d:[0-5]\d|Z)/;
 var URL_REGEXP = /^(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?$/;
 var EMAIL_REGEXP = /^[a-z0-9!#$%&'*+\/=?^_`{|}~.-]+@[a-z0-9]([a-z0-9-]*[a-z0-9])?(\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)*$/i;
-var NUMBER_REGEXP = /^\s*(\-|\+)?(\d+|(\d*(\.\d*)))\s*$/;
+var NUMBER_REGEXP = /^\s*(\-|\+)?(\d+|(\d*(\.\d*)))(e\+?\d+)?\s*$/;
 var DATE_REGEXP = /^(\d{4})-(\d{2})-(\d{2})$/;
 var DATETIMELOCAL_REGEXP = /^(\d{4})-(\d\d)-(\d\d)T(\d\d):(\d\d)(?::(\d\d)(\.\d{1,3})?)?$/;
 var WEEK_REGEXP = /^(\d{4})-W(\d\d)$/;

test/ng/directive/inputSpec.js

@@ -1917,6 +1917,31 @@ describe('input', function() {
     });
 
 
+    it('should parse exponential notation', function() {
+      var inputElm = helper.compileInput('<input type="number" name="alias" ng-model="value" />');
+
+      // #.###e+##
+      $rootScope.form.alias.$setViewValue("1.23214124123412412e+26");
+      expect(inputElm).toBeValid();
+      expect($rootScope.value).toBe(1.23214124123412412e+26);
+
+      // #.###e##
+      $rootScope.form.alias.$setViewValue("1.23214124123412412e26");
+      expect(inputElm).toBeValid();
+      expect($rootScope.value).toBe(1.23214124123412412e26);
+
+      // ####e+##
+      $rootScope.form.alias.$setViewValue("123214124123412412e+26");
+      expect(inputElm).toBeValid();
+      expect($rootScope.value).toBe(123214124123412412e26);
+
+      // ####e##
+      $rootScope.form.alias.$setViewValue("123214124123412412e26");
+      expect(inputElm).toBeValid();
+      expect($rootScope.value).toBe(123214124123412412e26);
+    });
+
+
     describe('min', function() {
 
       it('should validate', function() {