sinon

I tried a dummy module and to stub it, but does not work. the app.js function foo() { return run_func() } function run_func() { return '1' } exports._test = {foo: foo, run_func: run_func} the test.js app = require("./app.js")._test describe('test', function(){ it('test', function(){ var test_stub = sinon.stub(app, 'run_func').callsFake( function(){ return '0' }) test_stub.restore() var res = app.foo() assert.equal('0', res) }) }) I tried the advice from: sinon stub not replacing function But still the same. It does not replace the function. You have a couple of problems here. The first is that

I have written a NodeJS app using express that proxies some calls to external APIs. So I am trying to write a unit test using Mocha and Sinon. My goal is to test the app without any internet connectivity so I am trying to mock the https requests and return mock replies. I'm having a problem that I can't find any examples or tutorials that fit my case. My node app listens on port 8081 for http requests and then proxies them to another site. I want to test my app without it having to actually send the request to those external servers. I'm trying it below and I put the json replies I want to

Apologies if this is a simple question, I'm relatively new to Node and Sinon. I'm struggling trying to figure out how to assert that a nested asynchronous function was called in Nodejs. I'm using mocha, chai, sinon, and request ( https://github.com/request/request ) but think I'm missing something basic on the stubbing part. Example inside my_app.js - var request = require('request'); function MyModule() { }; MyModule.prototype.getTicker = function(callback) { request('http://example.com/api/ticker', function(error, response) { if (error) { callback(error); } else { callback(null, response); }

Edit: Being a little bit more precise. I want to test usecases for a Github API wrapper extension, that our team has created. For testing, we don't want to use API wrapper extension directly, so we want to stub out its functions. All calls to the API wrapper should be stubbed out for the tests, not just creating a clone stub. I have a module "github" in Node.js: module.exports = function(args, done) { ... } And I am requiring it like this: var github = require('../services/github'); Now, I would like to stub out github(...) using Sinon.js: var stub_github = sinon.stub(???, "github", function

I'm trying to intercept a call with Sinon.js so I can do some logging and then execute the original call. I don't see a way to do this with sinon.spy(), but I think I can do it with sinon.stub(). I provided a custom function: sinon.stub(servicecore.ServiceWrapper.prototype, '_invoke', function(method, name, body, headers, callback) { console.log('---- ServiceWrapper._invoke called! ----'); // How do I call the original function? }); The problem I have is executing the original function, so my application behaves the same. Any idea? You could use a closure. For example: var obj = { foo: