text: var SslPinning = require("nativescript-ssl-pinning").SslPinning;
  var sslPinning = new SslPinning();
  
  describe("greet function", function() {
      it("exists", function() {
          expect(sslPinning.greet).toBeDefined();
      });
  
      it("returns a string", function() {
          expect(sslPinning.greet()).toEqual("Hello, NS");
      });
  });