Ghost/core/test/unit/lib/request_spec.js

var should = require('should'),
    sinon = require('sinon'),
    rewire = require('rewire'),
    nock = require('nock'),
    request = rewire('../../../server/lib/request'),
    sandbox = sinon.sandbox.create();

describe('Request', function () {
    var result,
        requestMock,
        secondRequestMock;

    afterEach(function () {
        sandbox.restore();
    });

    it('[success] should return response for http request', function (done) {
        var url = 'http://some-website.com/endpoint/',
            expectedResponse =
            {
                body: 'Response body',
                url: 'http://some-website.com/endpoint/',
                statusCode: 200
            },
            options = {
                headers: {
                    'User-Agent': 'Mozilla/5.0'
                }
            };

        requestMock = nock('http://some-website.com')
            .get('/endpoint/')
            .reply(200, 'Response body');

        result = request(url, options).then(function (res) {
            requestMock.isDone().should.be.true();
            should.exist(res);
            should.exist(res.body);
            res.body.should.be.equal(expectedResponse.body);
            should.exist(res.url);
            res.statusCode.should.be.equal(expectedResponse.statusCode);
            should.exist(res.statusCode);
            res.url.should.be.equal(expectedResponse.url);
            done();
        }).catch(done);
    });

    it('[success] can handle redirect', function (done) {
        var url = 'http://some-website.com/endpoint/',
            expectedResponse =
            {
                body: 'Redirected response',
                url: 'http://someredirectedurl.com/files/',
                statusCode: 200
            },
            options = {
                headers: {
                    'User-Agent': 'Mozilla/5.0'
                }
            };

        requestMock = nock('http://some-website.com')
            .get('/endpoint/')
            .reply(301, 'Oops, got redirected',
            {
                location: 'http://someredirectedurl.com/files/'
            });

        secondRequestMock = nock('http://someredirectedurl.com')
            .get('/files/')
            .reply(200, 'Redirected response');

        result = request(url, options).then(function (res) {
            requestMock.isDone().should.be.true();
            secondRequestMock.isDone().should.be.true();
            should.exist(res);
            should.exist(res.body);
            res.body.should.be.equal(expectedResponse.body);
            should.exist(res.url);
            res.statusCode.should.be.equal(expectedResponse.statusCode);
            should.exist(res.statusCode);
            res.url.should.be.equal(expectedResponse.url);
            done();
        }).catch(done);
    });

    it('[failure] can handle invalid url', function (done) {
        var url = 'test',
            options = {
                headers: {
                    'User-Agent': 'Mozilla/5.0'
                }
            };

        result = request(url, options)
            .catch(function (err) {
                should.exist(err);
                err.message.should.be.equal('URL empty or invalid.');
                done();
            });
    });

    it('[failure] can handle empty url', function (done) {
        var url = '',
            options = {
                headers: {
                    'User-Agent': 'Mozilla/5.0'
                }
            };

        result = request(url, options)
            .catch(function (err) {
                should.exist(err);
                err.message.should.be.equal('URL empty or invalid.');
                done();
            });
    });

    it('[failure] can handle an error with statuscode not 200', function (done) {
        var url = 'http://nofilehere.com/files/test.txt',
            options = {
                headers: {
                    'User-Agent': 'Mozilla/5.0'
                }
            };

        requestMock = nock('http://nofilehere.com')
            .get('/files/test.txt')
            .reply(404);

        result = request(url, options)
            .catch(function (err) {
                requestMock.isDone().should.be.true();
                should.exist(err);
                err.statusMessage.should.be.equal('Not Found');
                done();
            });
    });

    it('[failure] will timeout', function (done) {
        var url = 'http://nofilehere.com/files/test.txt',
            options = {
                headers: {
                    'User-Agent': 'Mozilla/5.0'
                },
                timeout: 10
            };

        requestMock = nock('http://nofilehere.com')
            .get('/files/test.txt')
            .socketDelay(100)
            .reply(408);

        result = request(url, options)
            .catch(function (err) {
                requestMock.isDone().should.be.true();
                should.exist(err);
                err.statusMessage.should.be.equal('Request Timeout');
                done();
            });
    });

    it('[failure] returns error if request errors', function (done) {
        var url = 'http://nofilehere.com/files/test.txt',
            options = {
                headers: {
                    'User-Agent': 'Mozilla/5.0'
                }
            };

        requestMock = nock('http://nofilehere.com')
            .get('/files/test.txt')
            .reply(500, {message: 'something aweful happend', code: 'AWFUL_ERROR'});

        result = request(url, options)
            .catch(function (err) {
                requestMock.isDone().should.be.true();
                should.exist(err);
                err.statusMessage.should.be.equal('Internal Server Error');
                done();
            });
    });
});