Test Usecase adding

test/spec/controllers/use-case-test.js

@@ -0,0 +1,24 @@
+'use strict';
+describe("apacheZeppelinGsocApp UseCase Testing", function() {
+  beforeEach(module("apacheZeppelinGsocApp"));
+  var myChart;
+  beforeEach(inject(function(GoogleChartFactory,HighChartFactory,NVD3ChartFactory) {
+    //making mock chart called mychart from GoogleChartFactory
+    myChart = GoogleChartFactory;
+  }));
+  //testing for Google chart factory
+  describe("Switching Chart Types", function() {
+    it(" from default chart type to line then to bar", function() {
+      expect(myChart).toBeDefined();
+      expect(myChart.libname).toBe('googleChart');
+      expect(myChart.viewModel.type).toBe('BarChart');
+      myChart.setChartType('Line');
+      expect(myChart.viewModel.type).toBe('LineChart');
+      myChart.setChartType('Bar');
+      expect(myChart.viewModel.type).toBe('BarChart');
+    });
+    it(" using google chart library", function() {
+
+    });
+  });
+});