test(input): ensure Date objects work for min/max in date input types

Tests that
- interpolated Date objects work for min/max
- Date objects work for ng-min/ng-max

Author: Narretz

test/ng/directive/inputSpec.js

@@ -1857,6 +1857,16 @@ describe('input', function() {
       it('should parse ISO-based date strings as a valid min date value', function() {
         var inputElm = helper.compileInput('<input name="myControl" type="date" min="{{ min }}" ng-model="value">');
 
+        $rootScope.value = new Date(2010, 1, 1, 0, 0, 0);
+        $rootScope.min = new Date(2014, 10, 10, 0, 0, 0).toISOString();
+        $rootScope.$digest();
+
+        expect($rootScope.form.myControl.$error.min).toBeTruthy();
+      });
+
+      it('should parse interpolated Date objects as a valid min date value', function() {
+        var inputElm = helper.compileInput('<input name="myControl" type="date" min="{{ min }}" ng-model="value">');
+
         $rootScope.value = new Date(2010, 1, 1, 0, 0, 0);
         $rootScope.min = new Date(2014, 10, 10, 0, 0, 0);
         $rootScope.$digest();
@@ -1896,6 +1906,16 @@ describe('input', function() {
       it('should parse ISO-based date strings as a valid max date value', function() {
         var inputElm = helper.compileInput('<input name="myControl" type="date" max="{{ max }}" ng-model="value">');
 
+        $rootScope.value = new Date(2020, 1, 1, 0, 0, 0);
+        $rootScope.max = new Date(2014, 10, 10, 0, 0, 0).toISOString();
+        $rootScope.$digest();
+
+        expect($rootScope.form.myControl.$error.max).toBeTruthy();
+      });
+
+      it('should parse interpolated Date objects as a valid max date value', function() {
+        var inputElm = helper.compileInput('<input name="myControl" type="date" max="{{ max }}" ng-model="value">');
+
         $rootScope.value = new Date(2020, 1, 1, 0, 0, 0);
         $rootScope.max = new Date(2014, 10, 10, 0, 0, 0);
         $rootScope.$digest();
@@ -1990,6 +2010,44 @@ describe('input', function() {
       expect(inputElm).toBeValid();
     });
 
+
+    it('should allow Date objects as valid ng-max values', function() {
+      $rootScope.max = new Date(2012, 1, 1, 1, 2, 0);
+      var inputElm = helper.compileInput('<input type="datetime-local" ng-model="value" name="alias" ng-max="max" />');
+
+      helper.changeInputValueTo('2014-01-01T12:34:00');
+      expect(inputElm).toBeInvalid();
+
+      $rootScope.max = new Date(2013, 1, 1, 1, 2, 0);
+      $rootScope.$digest();
+
+      expect(inputElm).toBeInvalid();
+
+      $rootScope.max = new Date(2014, 1, 1, 1, 2, 0);
+      $rootScope.$digest();
+
+      expect(inputElm).toBeValid();
+    });
+
+
+    it('should allow Date objects as valid ng-min values', function() {
+      $rootScope.min = new Date(2013, 1, 1, 1, 2, 0);
+      var inputElm = helper.compileInput('<input type="datetime-local" ng-model="value" name="alias" ng-min="min" />');
+
+      helper.changeInputValueTo('2010-01-01T12:34:00');
+      expect(inputElm).toBeInvalid();
+
+      $rootScope.min = new Date(2014, 1, 1, 1, 2, 0);
+      $rootScope.$digest();
+
+      expect(inputElm).toBeInvalid();
+
+      $rootScope.min = new Date(2009, 1, 1, 1, 2, 0);
+      $rootScope.$digest();
+
+      expect(inputElm).toBeValid();
+    });
+
     describe('ISO_DATE_REGEXP', function() {
       var dates = [
         // Validate date