diff --git a/front/core/components/treeview/childs.js b/front/core/components/treeview/childs.js
index a9bd42077..d94c88df9 100644
--- a/front/core/components/treeview/childs.js
+++ b/front/core/components/treeview/childs.js
@@ -7,10 +7,6 @@ class Controller extends Component {
         event.preventDefault();
         this.treeview.onToggle(item);
     }
-
-    onDrop(item, dragged, dropped) {
-        this.treeview.onDrop(item, dragged, dropped);
-    }
 }
 
 ngModule.component('vnTreeviewChilds', {
diff --git a/front/core/components/treeview/index.js b/front/core/components/treeview/index.js
index 9ecbf52e6..728ea182e 100644
--- a/front/core/components/treeview/index.js
+++ b/front/core/components/treeview/index.js
@@ -103,7 +103,8 @@ export default class Treeview extends Component {
         const $dropped = this.dropping.$ctrl.item;
         const $dragged = this.dragging.$ctrl.item;
 
-        this.emit('drop', {$dropped, $dragged});
+        if ($dropped != $dragged.parent)
+            this.emit('drop', {$dropped, $dragged});
     }
 
     get data() {
diff --git a/front/core/components/treeview/index.spec.js b/front/core/components/treeview/index.spec.js
new file mode 100644
index 000000000..75c35fb25
--- /dev/null
+++ b/front/core/components/treeview/index.spec.js
@@ -0,0 +1,260 @@
+describe('Component vnTreeview', () => {
+    let controller;
+    let $element;
+
+    beforeEach(angular.mock.module('vnCore', $translateProvider => {
+        $translateProvider.translations('en', {});
+    }));
+
+    beforeEach(inject(($compile, $rootScope) => {
+        $element = $compile(`<vn-treeview></vn-treeview>`)($rootScope);
+        controller = $element.controller('vnTreeview');
+
+        const promise = new Promise(() => {
+            return {name: 'My item'};
+        });
+
+        controller.fetchFunc = () => {
+            return promise;
+        };
+
+        controller.createFunc = () => {
+            return promise;
+        };
+
+        controller.removeFunc = () => {
+            return promise;
+        };
+
+        controller.sortFunc = () => {
+            return promise;
+        };
+    }));
+
+    afterEach(() => {
+        $element.remove();
+    });
+
+    // See how to test DOM element in Jest
+    xdescribe('undrop()', () => {
+        it(`should reset all drop events and properties`, () => {
+            controller.dropping = angular.element(`<vn-treeview-child class="dropping"></vn-treeview-child>`);
+            spyOn(controller.dropping.classList, 'remove');
+
+            controller.undrop();
+
+            expect(controller.dropping).toBeNull();
+        });
+    });
+
+    describe('dragOver()', () => {
+        it(`should set the dragClientY property`, () => {
+            const event = new Event('dragover');
+            event.clientY = 100;
+
+            controller.dragOver(event);
+
+            expect(controller.dragClientY).toEqual(100);
+        });
+    });
+
+    describe('data() setter', () => {
+        it(`should set the items property nested into a root element`, () => {
+            const items = [{name: 'Item1'}, {name: 'Item2'}];
+            controller.data = items;
+
+            const rootItem = controller.items[0];
+
+            expect(rootItem.childs).toEqual(items);
+        });
+    });
+
+    describe('fetch()', () => {
+        it(`should call the fetchFunc() method`, () => {
+            spyOn(controller, 'fetchFunc').and.returnValue(
+                new Promise(resolve => resolve())
+            );
+            controller.fetch().then(() => {
+                expect(controller.data).toBeDefined();
+            });
+
+            expect(controller.fetchFunc).toHaveBeenCalledWith();
+        });
+    });
+
+    describe('setParent()', () => {
+        it(`should set the parent property recursively to each element of an item list`, () => {
+            spyOn(controller, 'setParent').and.callThrough();
+            const items = [{name: 'Item1'}, {name: 'Item2', childs: [
+                {name: 'Item3'}
+            ]}];
+            const rootItem = {name: 'Nested tree', sons: items};
+            controller.setParent(rootItem, items);
+
+            expect(items[0].parent).toEqual(rootItem);
+            expect(items[1].parent).toEqual(rootItem);
+            expect(controller.setParent).toHaveBeenCalledWith(rootItem, items[1].childs);
+        });
+    });
+
+    describe('onToggle()', () => {
+        it(`should call the fold() or unfold() methods`, () => {
+            spyOn(controller, 'fold');
+            spyOn(controller, 'unfold');
+
+            const item = {name: 'My item'};
+
+            controller.onToggle(item);
+            item.active = true;
+            controller.onToggle(item);
+
+            expect(controller.unfold).toHaveBeenCalledWith(item);
+            expect(controller.fold).toHaveBeenCalledWith(item);
+        });
+    });
+
+    describe('fold()', () => {
+        it(`should remove the childs and set the active property to false`, () => {
+            const item = {name: 'My item', childs: [{name: 'Item 1'}], active: true};
+
+            controller.fold(item);
+
+            expect(item.childs).toBeUndefined();
+            expect(item.active).toBeFalsy();
+        });
+    });
+
+    describe('unfold()', () => {
+        it(`should unfold a parent item`, () => {
+            const expectedResponse = [{name: 'Item 1'}, {name: 'Item 2'}];
+            spyOn(controller, 'fetchFunc').and.returnValue(
+                new Promise(resolve => resolve(expectedResponse))
+            );
+            spyOn(controller, 'setParent');
+            spyOn(controller, 'sortFunc');
+            const parent = {name: 'My item', sons: 1};
+            const child = {name: 'Item 1'};
+            child.parent = parent;
+            parent.childs = [child];
+
+            controller.unfold(parent).then(() => {
+                expect(controller.fetchFunc).toHaveBeenCalledWith({$item: parent});
+                expect(controller.setParent).toHaveBeenCalledWith(parent, expectedResponse);
+                expect(controller.sortFunc).toHaveBeenCalledWith(jasmine.any(Object));
+                expect(parent.active).toBeTruthy();
+            });
+        });
+    });
+
+    describe('onRemove()', () => {
+        it(`should call the removeFunc() method`, () => {
+            spyOn(controller, 'removeFunc');
+            const item = {name: 'My item'};
+            controller.onRemove(item);
+
+            expect(controller.removeFunc).toHaveBeenCalledWith({$item: item});
+        });
+    });
+
+    describe('remove()', () => {
+        it(`should remove a child element`, () => {
+            const parent = {name: 'My item', sons: 1};
+            const child = {name: 'Item 1'};
+            child.parent = parent;
+            parent.childs = [child];
+
+            controller.remove(child);
+
+            expect(parent.childs).toEqual([]);
+            expect(parent.sons).toEqual(0);
+        });
+    });
+
+    describe('onCreate()', () => {
+        it(`should call the createFunc() method`, () => {
+            spyOn(controller, 'createFunc');
+            const parent = {name: 'My item'};
+            controller.onCreate(parent);
+
+            expect(controller.createFunc).toHaveBeenCalledWith({$parent: parent});
+        });
+    });
+
+    describe('create()', () => {
+        it(`should unfold an inactive parent and then create a child`, () => {
+            spyOn(controller, 'unfold');
+            spyOn(controller, 'sortFunc');
+            const parent = {name: 'My item', sons: 2, childs: [
+                {name: 'Item 1'},
+                {name: 'Item 2'}
+            ]};
+            const child = {name: 'Item 3'};
+            child.parent = parent;
+            parent.childs.push(child);
+
+            controller.create(child);
+
+            expect(parent.sons).toEqual(3);
+            expect(controller.unfold).toHaveBeenCalledWith(parent);
+            expect(controller.sortFunc).toHaveBeenCalledWith(jasmine.any(Object));
+            expect(controller.sortFunc).toHaveBeenCalledTimes(2);
+        });
+
+        it(`should create a child on an active parent`, () => {
+            spyOn(controller, 'unfold');
+            spyOn(controller, 'sortFunc');
+            const parent = {name: 'My item', sons: 2, childs: [
+                {name: 'Item 1'},
+                {name: 'Item 2'}
+            ], active: true};
+            const child = {name: 'Item 3'};
+            child.parent = parent;
+
+            controller.create(child);
+
+            expect(parent.sons).toEqual(3);
+            expect(controller.unfold).not.toHaveBeenCalledWith(parent);
+            expect(controller.sortFunc).toHaveBeenCalledWith(jasmine.any(Object));
+            expect(controller.sortFunc).toHaveBeenCalledTimes(2);
+        });
+    });
+
+    describe('move()', () => {
+        it(`should move an item to anocher parent and then unfold the parent`, () => {
+            spyOn(controller, 'unfold').and.returnValue(
+                new Promise(resolve => resolve())
+            );
+            const newParent = {name: 'My item 2', sons: 0};
+            const parent = {name: 'My item', sons: 3, childs: [
+                {name: 'Item 1'},
+                {name: 'Item 2'}
+            ]};
+            const child = {name: 'Item 3'};
+            child.parent = parent;
+            parent.childs.push(child);
+
+            controller.move(child, newParent);
+
+            expect(parent.sons).toEqual(2);
+            expect(controller.unfold).toHaveBeenCalledWith(newParent);
+        });
+
+        it(`should move an item to anocher parent`, () => {
+            spyOn(controller, 'unfold');
+            spyOn(controller, 'create');
+            const newParent = {name: 'My item 2', sons: 0, active: true};
+            const parent = {name: 'My item', sons: 3, childs: [
+                {name: 'Item 1'},
+                {name: 'Item 2'}
+            ]};
+            const child = {name: 'Item 3'};
+            child.parent = parent;
+            parent.childs.push(child);
+
+            controller.move(child, newParent);
+
+            expect(parent.sons).toEqual(2);
+            expect(controller.unfold).not.toHaveBeenCalledWith(newParent);
+        });
+    });
+});
diff --git a/modules/claim/front/action/index.html b/modules/claim/front/action/index.html
index 65467d349..35a0e56e2 100644
--- a/modules/claim/front/action/index.html
+++ b/modules/claim/front/action/index.html
@@ -50,6 +50,7 @@
                     </vn-check>
                 </vn-one>
             </vn-horizontal>
+            <vn-data-viewer model="model">
             <vn-table model="model">
                 <vn-thead>
                     <vn-tr>
@@ -114,6 +115,7 @@
                     </vn-tr>
                 </vn-tbody>
             </vn-table>
+           </vn-data-viewer>
         </vn-vertical>
     </vn-card>
     <vn-button-bar>