diff --git a/spec/other-spec.js b/spec/other-spec.js
new file mode 100644
index 0000000..87c350e
--- /dev/null
+++ b/spec/other-spec.js
@@ -0,0 +1,63 @@
+var LTT = require('../dist/list-to-tree.npm');
+
+describe('Default keys:', function() {
+
+    var tree = null;
+
+    beforeEach(function() {
+        var list = [
+            { "id" : 6000, "parent" : 0 },
+            { "id" : 6001, "parent" : 6000 },
+            { "id" : 6002, "parent" : 6000},
+            { "id" : 6003, "parent" : 6000 },
+            { "id" : 6004, "parent" : 6000 },
+            { "id" : 6005, "parent" : 6000 },
+            { "id" : 6006, "parent" : 6000 },
+            { "id" : 6007, "parent" : 6000 },
+            { "id" : 6008, "parent" : 6001 },
+        ];
+        var ltt = new LTT(list);
+        tree = ltt.GetTree();
+    });
+
+
+    it('It is workly', function() {
+        expect( tree.length ).toBe(1);
+
+    });
+
+    it('First node check id', function() {
+        var firstNode = tree[0];
+        expect( firstNode.id ).toBe(6000);
+    });
+
+    it('First node check parent', function() {
+        var firstNode = tree[0];
+        expect( firstNode.parent ).toBe(0);
+    });
+
+    it('First node check child', function() {
+        var child = tree[0].child;
+        expect( child.length ).toBe(7);
+    });
+
+    it('First child - check id', function() {
+        var child = tree[0].child;
+        var node = child[0];
+        expect( node.id ).toBe(6001);
+    });
+
+    it('First child - check parent', function() {
+        var child = tree[0].child;
+        var node = child[0];
+        console.log(node.parent);
+        expect( node.parent ).toBe(6000);
+    });
+
+    it('Child node have a child key', function() {
+        var child = tree[0].child;
+        var node = child[0];
+        expect( 'child' in node ).toBe(true);
+    });
+
+});