fix(input): take timezone into account when validating minimum and maximum date spans

Closes angular#16342
Closes angular#16390

Author: m-amr

src/ng/directive/input.js

@@ -1440,11 +1440,7 @@ function createDateInputType(type, regexp, parseDate, format) {
         // Note: We cannot read ctrl.$modelValue, as there might be a different
         // parser/formatter in the processing chain so that the model
         // contains some different data format!
-        var parsedDate = parseDate(value, previousDate);
-        if (timezone) {
-          parsedDate = convertTimezoneToLocal(parsedDate, timezone);
-        }
-        return parsedDate;
+        return parseDateAndConvertTimeZoneToLocal(value, previousDate);
       }
       ctrl.$$parserName = type;
       return undefined;
@@ -1494,7 +1490,15 @@ function createDateInputType(type, regexp, parseDate, format) {
     }
 
     function parseObservedDateValue(val) {
-      return isDefined(val) && !isDate(val) ? parseDate(val) || undefined : val;
+      return isDefined(val) && !isDate(val) ? parseDateAndConvertTimeZoneToLocal(val) || undefined : val;
+    }
+
+    function parseDateAndConvertTimeZoneToLocal(value, previousDate) {
+      var parsedDate = previousDate ? parseDate(value, previousDate) : parseDate(value);
+      if (timezone) {
+        parsedDate = convertTimezoneToLocal(parsedDate, timezone);
+      }
+      return parsedDate;
     }
   };
 }

test/ng/directive/inputSpec.js

@@ -840,6 +840,16 @@ describe('input', function() {
 
         expect($rootScope.form.alias.$error.max).toBeFalsy();
       });
+
+      it('should validate when timezone is provided.', function() {
+        inputElm = helper.compileInput('<input type="date" ng-model="value" name="alias" ' +
+            'min="2013-01-01" max="2013-12-31" ng-model-options="{timezone: \'UTC\', allowInvalid: true}" required/>');
+        $rootScope.value = new Date(Date.UTC(2013, 11, 31));
+        $rootScope.$digest();
+
+        expect($rootScope.form.alias.$error.max).toBeFalsy();
+        expect($rootScope.form.alias.$valid).toBeTruthy();
+      });
     });
   });