Added tests for ElementsRenderer.js

test/ElementsRenderer.test.js

@@ -0,0 +1,40 @@
+import { mount } from 'enzyme';
+import React from 'react';
+
+import ElementsRenderer from '../src/ElementsRenderer';
+
+describe('<ElementsRenderer>', () => {
+  it('should render null when no item in elements', () => {
+    const elements = [];
+    const wrapper = mount(
+      <ElementsRenderer elements={elements} />
+    );
+    expect(wrapper.html()).toBe(null);
+  });
+
+  it('should render element', () => {
+    const elements = [<div />];
+    const wrapper = mount(
+      <ElementsRenderer elements={elements} />
+    );
+    expect(wrapper.find('div')).toHaveLength(1);
+  });
+
+  it('should render elements with nested structure', () => {
+    const Parent = ({ children }) => <div className="parent">{children}</div>;
+    Parent.propTypes = { children: React.PropTypes.element };
+    const Child = () => <div className="child" />;
+
+    const elements = [<Parent />, <Child />];
+
+    const wrapper = mount(
+      <ElementsRenderer elements={elements} />
+    );
+
+    const parent = wrapper.find(Parent);
+    expect(parent).toHaveLength(1);
+
+    const child = parent.find(Child);
+    expect(child).toHaveLength(1);
+  });
+});