Fixing unit test cases for http proxy

Author: karanshah-browserstack

test/core/proxy.test.js

@@ -37,9 +37,9 @@ describe('Proxy', () => {
   });
 
   it('should handle request', () => {
-    const requestStub = stub(http, 'request');
+    const requestSpy = spy(http, 'request');
     this.proxy.requestHandler(this.request, this.response);
-    expect(requestStub.calledOnce).to.be.equal(true);
+    expect(requestSpy.calledOnce).to.be.equal(true);
   });
 
   it('should set connection id', () => {