unit test cases for request(url, function(error, response, body) method

[svlungade]

Hi All,
in most of my files i have used below method -

var request = require('request');
request(url, function(error, response, body) {
    if (!error && response.statusCode === 200) {

how do i stub this method in unit testing?

already tried sinon.stub(request), but thats not helping.

[svlungade]

@simov tried already, but couldnt locate it, did anyone came across this issue already?

[tstapleton]

Try proxyquire:

var proxyquire = require('proxyquire');
var requestSpy = jasmine.createSpy();
var myFile = proxyquire('../../file/that/requires/request', {
    request: requestSpy,
});
describe('the test', function() {
    it('should use the mock', function() {
        myFile.makeARequest();
        expect(requestSpy).toHaveBeenCalledWith(jasmine.objectContaining({
            headers: jasmine.objectContaining({
                Accept: 'application/json',
            }),
            method: 'GET',
        }), jasmine.any(Function));
    });
});

Example: http://vansande.org/2015/03/22/unit_testing_with_mocks_in_node_js/

Or mock-require

var mock = require('mock-require');
var requestSpy = jasmine.createSpy();
mock('request', requestSpy);
var myFile = require('../../file/that/requires/request');
describe('the test', function() {
    it('should use the mock', function() {
        myFile.makeARequest();
        expect(requestSpy).toHaveBeenCalled();
        // and you should be able to invoke the callback also, e.g.
        // var callback = requestSpy.calls.first().args[1];
        // expect(callback(/* vars */))...
    });
});

[stale]

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