Fix regressions

package.json

@@ -1,7 +1,7 @@
 {
   "name": "grapesjs",
   "description": "Free and Open Source Web Builder Framework",
-  "version": "0.12.20",
+  "version": "0.12.21",
   "author": "Artur Arseniev",
   "license": "BSD-3-Clause",
   "homepage": "http://grapesjs.com",

test/specs/style_manager/model/Models.js

@@ -462,24 +462,28 @@ module.exports = {
                   type    : 'integer',
                   units   : ['px','%'],
                   defaults  : 0,
+                  min: 0,
                 },{
                   property  : 'padding-right',
                   fixedValues: ['initial', 'inherit', 'auto'],
                   type    : 'integer',
                   units   : ['px','%'],
                   defaults  : 0,
+                  min: 0,
                 },{
                   property  : 'padding-bottom',
                   fixedValues: ['initial', 'inherit', 'auto'],
                   type    : 'integer',
                   units   : ['px','%'],
                   defaults  : 0,
+                  min: 0,
                 },{
                   property  : 'padding-left',
                   fixedValues: ['initial', 'inherit', 'auto'],
                   type    : 'integer',
                   units   : ['px','%'],
                   defaults  : 0,
+                  min: 0,
                 },],
         };
         expect(obj.build('padding')).toEqual([res]);

test/specs/style_manager/view/PropertyIntegerView.js

@@ -6,7 +6,7 @@ const Component = require('dom_components/model/Component');
 module.exports = {
   run() {
 
-      describe.only('PropertyIntegerView', () => {
+      describe('PropertyIntegerView', () => {
 
         var component;
         var fixtures;
@@ -111,12 +111,9 @@ module.exports = {
         });
 
         it('Update target on value change', () => {
-          view.selectedComponent = component;
-          view.model.set('value', intValue);
-          var compStyle = view.selectedComponent.get('style');
-          var assertStyle = {};
-          assertStyle[propName] = intValue;
-          expect(compStyle).toEqual(assertStyle);
+          const val = `${intValue}%`;
+          view.model.setValue(val);
+          expect(view.getTargetValue()).toEqual(val);
         });
 
         describe('With target setted', () => {

test/specs/style_manager/view/PropertyView.js

@@ -133,11 +133,10 @@ module.exports = {
 
         it('Fetch value from function', () => {
           view.selectedComponent = component;
-          var style = {};
-          style[propName] = 'testfun(' + propValue + ')';
-          component.set('style', style);
+          const val = `testfun(${propValue})`;
+          component.set('style', {[propName]: val});
           view.model.set('functionName', 'testfun');
-          expect(view.getTargetValue()).toEqual(propValue);
+          expect(view.getTargetValue()).toEqual(val);
         });
 
         describe('With target setted', () => {