Add test for Layout

tests/layout.test.js

@@ -0,0 +1,25 @@
+import React from 'react';
+import TestUtils from 'react-addons-test-utils';
+
+jest.dontMock('../components/layout/index');
+jest.dontMock('../components/layout/col');
+jest.dontMock('../components/layout/row');
+
+const { Col, Row } = require('../components/layout/index');
+
+describe('Layout', function() {
+  it('should render Col', () => {
+    const col = TestUtils.renderIntoDocument(
+      <Col span="2"></Col>
+    );
+    const colNode = TestUtils.findRenderedDOMComponentWithTag(col, 'DIV');
+    expect(colNode.className).toBe('col-2');
+  });
+  it('should render Row', () => {
+    const row = TestUtils.renderIntoDocument(
+      <Row></Row>
+    );
+    const rowNode = TestUtils.findRenderedDOMComponentWithTag(row, 'DIV');
+    expect(rowNode.className).toBe('row');
+  });
+});