energylink/public/app/core/specs/backend_srv_specs.ts

import {describe, beforeEach, it, expect, angularMocks} from 'test/lib/common';
import 'app/core/services/backend_srv';

describe('backend_srv', function() {
  var _backendSrv;
  var _http;
  var _httpBackend;

  beforeEach(angularMocks.module('grafana.core'));
  beforeEach(angularMocks.module('grafana.services'));
  beforeEach(angularMocks.inject(function ($httpBackend, $http, backendSrv) {
    _httpBackend = $httpBackend;
    _http = $http;
    _backendSrv = backendSrv;
  }));

  describe('when handling errors', function() {
    it('should return the http status code', function(done) {
      _httpBackend.whenGET('gateway-error').respond(502);
      _backendSrv.datasourceRequest({
        url: 'gateway-error'
      }).catch(function(err) {
        expect(err.status).to.be(502);
        done();
      });
      _httpBackend.flush();
    });
  });
});