Jasmine unit testing: inject http service - angularjs

Question

I have the next service "IrChartService":
public getDataAfterUpdate(entityId: number, timestamp: number) {
var deferred = this.$q.defer();
var requestUrl = this.IrChartData + '/datasequences/entities/' + entityId + '/ir?timestamp=' + timestamp;
this.$http.get(requestUrl).then((result) => {
deferred.resolve(result.data);
});
return deferred.promise;
}
That service is used in a controller.
Here I have the test file:
/* Test Code */
describe('IrChartService', function () {
var IrChartService, $httpBackend, $q, IrChartData;
beforeEach(function(){
angular.module('genscape.rt.irchart')
});
beforeEach(inject(function(_$httpBackend_, _IrChartService_, _$q_, _IrChartData_) {
IrChartService = _IrChartService_;
$httpBackend = _$httpBackend_;
$q = _$q_;
IrChartData = _IrChartData_;
}));
it('is defined', function () {
console.log('def');
expect(IrChartService).toBeDefined();
});
it('should call the backend testurl', function() {
var returnData = {
"ImagePath": "/20160406/167/167_20160406_065626.jpg",
"ConfidenceValue": 4
};
console.log('test');
//7. expectGET to make sure this is called once.
$httpBackend.expectGET("../mock/chartData.specs.json").respond(returnData);
$httpBackend.flush();
});
});
It return me errors like:
Error: [$injector:unpr] http://errors.angularjs.org/1.4.0-rc.2/$injector/unpr?p0=IrChartServiceProvider%20%3C-%20IrChartService
TypeError: Cannot read property 'expectGET' of undefined
Expected undefined to be defined.
Can you help me, please? Thanks!
Update:
// Karma configuration
// Generated on Wed May 20 2015 15:52:13 GMT-0400 (Eastern Daylight Time)
module.exports = function (config) {
config.set({
// base path that will be used to resolve all patterns (eg. files, exclude)
basePath: '',
// frameworks to use
// available frameworks: https://npmjs.org/browse/keyword/karma-adapter
frameworks: ['jasmine'],
plugins: [
'karma-chrome-launcher',
'karma-jasmine',
'karma-html-reporter',
'karma-ng-html2js-preprocessor'
],
// list of files / patterns to load in the browser
files: [
'Scripts/angular.min.js',
'Scripts/angular-mocks.js',
'Scripts/genscape.common.js',
'app/template.module.js',
'app/app.module.js',
'app/templates.js',
'app/app.widget.service.js',
'app/IRchart/IRchart.service.js',
'app/IRchart/IRchart.controller.js',
'app/IRchart/IRchart.directive.js',
'app/IRchart/IRchart-error.directive.js',
'app/IRchart/IRchart-popup/IRchart-popup.controller.js',
'app/IRchart/IRchart-player/IRchart-player.controller.js',
'app/IRchart/IRchart-player/IRchart-player.directive.js',
'test/specs/specs.js',
// fixtures
{ pattern: 'test/mock/*.json', watched: true, served: true, included: false }
],
preprocessors: {
'**/*.html': ['ng-html2js']
},
ngHtml2JsPreprocessor: {
// we want all templates to be loaded in the same module called 'templates'
moduleName: 'genscape.rt.irchart'
},
// list of files to exclude
exclude: [
],
// test results reporter to use
// possible values: 'dots', 'progress'
// available reporters: https://npmjs.org/browse/keyword/karma-reporter
reporters: ['progress', 'html'],
// web server port
port: 9876,
// enable / disable colors in the output (reporters and logs)
colors: true,
// level of logging
// possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
logLevel: config.LOG_INFO,
// enable / disable watching file and executing tests whenever any file changes
autoWatch: true,
// start these browsers
// available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
//browsers: ['Chrome'],
browsers: ['Chrome'],
// Continuous Integration mode
// if true, Karma captures browsers, runs the tests and exits
singleRun: false
});
};