Updates test message and adds default case

src/ui/react/src/adapter/alloy-editor.js

@@ -43,13 +43,13 @@
 
             editor.config.selectionKeystrokes = this.get('selectionKeystrokes');
 
+            AlloyEditor.Lang.mix(editor.config, config);
+
             if (CKEDITOR.env.ie) {
                 editor.config.extraPlugins = editor.config.extraPlugins.replace('ae_dragresize', 'ae_dragresize_ie');
                 editor.config.removePlugins = editor.config.removePlugins.replace('ae_dragresize', 'ae_dragresize_ie');
             }
 
-            AlloyEditor.Lang.mix(editor.config, config);
-
             editor.once('contentDom', function() {
 
                 this._addReadOnlyLinkClickListener(editor);

src/ui/react/test/alloy-editor.js

@@ -12,6 +12,13 @@
         document.body.removeChild(this.el);
     };
 
+    var doTestIE = function() {
+        if (!CKEDITOR.env.ie) {
+            this.skip();
+        }
+        return;
+    };
+
     var initEditor = function(done, config) {
         this.el = document.createElement('div');
         this.el.setAttribute('id', 'editable');
@@ -315,5 +322,35 @@
                 assert.sameMembers(['foo2', 'bar2'], buttons);
             });
         });
+
+        describe('in IE browsers', function () {
+            this.timeout(35000);
+
+            beforeEach(function() {
+                doTestIE.call(this);
+            });
+
+            afterEach(function() {
+                cleanUpEditor.call(this);
+            });
+
+            it('should use the ae_dragresize_ie plugin instead of ae_dragresize by default', function(done) {
+                doTestIE.call(this);
+
+                initEditor.call(this, function() {
+                    assert.isTrue(this.alloyEditor.get('nativeEditor').config.extraPlugins.indexOf('ae_dragresize_ie') >= 0);
+                    done();
+                }.bind(this));
+            });
+
+            it('should use the ae_dragresize_ie plugin even if the ae_dragresize is passed in the editor configuration', function(done) {
+                initEditor.call(this, function() {
+                    assert.isTrue(this.alloyEditor.get('nativeEditor').config.extraPlugins.indexOf('ae_dragresize_ie') >= 0);
+                    done();
+                }.bind(this), {
+                    extraPlugins: 'ae_dragresize'
+                });
+            });
+        });
     });
 }());