Add tests for baseClass

test/index.html

@@ -58,6 +58,7 @@
         </script>
 
         <script src="spec/attr.js"></script>
+        <script src="spec/baseClass.js"></script>
         <script src="spec/class.js"></script>
         <script src="spec/contains.js"></script>
         <script src="spec/css.js"></script>

test/lib/helpers.js

@@ -26,4 +26,16 @@ chai.Assertion.addMethod('elements', function(expectedCollection) {
         expectedCollection.length,
         collection.length
     );
-});
+});
+
+function _inherits(subClass, superClass) {
+    subClass.prototype = Object.create(superClass.prototype, {
+        constructor: {
+            value: subClass,
+            enumerable: false,
+            writable: true,
+            configurable: true
+        }
+    });
+    subClass.__proto__ = superClass;
+}

test/spec/baseClass.js

@@ -0,0 +1,42 @@
+describe('baseClass', function() {
+
+    function MyComponent() {
+        Object.getPrototypeOf(MyComponent.prototype).constructor.apply(this, arguments); // super()
+    }
+
+    _inherits(MyComponent, $.BaseClass);
+
+    MyComponent.prototype.doSomething = function(value) {
+        return this.addClass(value);
+    };
+
+    it('should allow to extend from baseClass', function() {
+        var component = new MyComponent('body');
+        expect(component instanceof MyComponent).to.be.true;
+        expect(component instanceof $.BaseClass).to.be.true;
+        expect(MyComponent.prototype instanceof $.BaseClass).to.be.true;
+    });
+
+    it('should extend properly from baseClass', function() {
+        var expected = getRndStr(),
+            component = new MyComponent('body');
+        component.doSomething(expected);
+        expect(component.find).to.be.a('function');
+        expect(document.body.className).to.contain(expected);
+    });
+
+    it('should accept Nodes, just like $()', function() {
+        var expected = $(document.body),
+            actual = new MyComponent(document.body);
+        expect(actual).to.have.same.elements(expected);
+    });
+
+    it('should be chainable', function() {
+        var className = getRndStr(),
+            expected = new MyComponent(document.body),
+            actual = expected.doSomething(className).addClass(className);
+        expect(actual).to.equal(expected);
+        expect(document.body.className).to.contain(className);
+    });
+
+});