Add unit tests

Author: jsanthosh-godaddy

test/unit/carousel.tests.js

@@ -6,7 +6,6 @@ import sinon from 'sinon';
 import sinonChai from 'sinon-chai';
 import Carousel from '../../src/index';
 
-
 chai.use(sinonChai);
 let imagesFetched;
 
@@ -447,6 +446,28 @@ describe('Carousel', () => {
     expect(selectedSlide.prop('style').opacity).to.equal(1);
   });
 
+  it('should render vertical carousal with default arrows.', () => {
+    renderToJsdom(
+        <Carousel slideWidth='300px'
+                  viewportWidth='300px'
+                  lazyLoad={ false }
+                  infinite={ false }
+                  isVertical={ true }>
+          <div id='slide1' />
+          <div id='slide2' />
+          <div id='slide3' />
+        </Carousel>);
+    const topArrow = tree.find('.carousel-top-arrow');
+    const bottomArrow = tree.find('.carousel-bottom-arrow');
+    const carousalDiv = tree.find('.carousel-container-inner');
+
+    expect(carousalDiv.prop('style').display).to.eql('flex');
+    expect(topArrow.length).to.eql(1);
+    expect(topArrow.children().html()).to.eql('<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24"><path d="m0 16.67 2.829 2.83 9.175-9.339 9.167 9.339L24 16.67 12.004 4.5z"></path></svg>');
+    expect(bottomArrow.length).to.eql(1);
+    expect(bottomArrow.children().html()).to.eql('<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24"><path d="M0 7.33 2.829 4.5l9.175 9.339L21.171 4.5 24 7.33 12.004 19.5z"></path></svg>');
+  });
+
   it('should have transitions with the given duration and easing', done => {
     let slidingCarousel;