如何为依赖的angulajs过滤器创建单元测试？

Question

如何为我创建单元测试Angularjs过滤器调用？当前代码给出了错误：

  

错误：[$ injector：unpr]   http://errors.angularjs.org/1.6.0/ $注射器/ unpr？P0 = DateForFrontEndFilterFilterProvider％20％3 C-％20DateForFrontEndFilterFilter               at public / scripts / angular / angular.min.js：6：425               at public / scripts / angular / angular.min.js：44：395

我的代码如下：

过滤代码：

app.filter('DateForFrontEndFilter', ['$filter', 'ngOtherSettings', function($filter, ngOtherSettings) {
    return function(date) {
        var format = ngOtherSettings.FrontEndDateFormat;
        var result = $filter('date')(date, format, null);

测试代码：

describe('DateForFrontEndFilter tests', function() {
    beforeEach(function() {

        module.apply('myApp');

        inject(function($injector) {
            filter = $injector.get('$filter')('DateForFrontEndFilter');
        });

        var testDate = "10/12/2017 10:32:12";
    });


    it('check date from DateForFrontEndFilter for date with format long', function() {

        var ngOtherSettings = { FrontEndDateFormat: 'dd/MM/yyyy HH:mm:ss' };
        var result = filter(ngOtherSettings, testDate);
        expect(result).toBe(testDate + "sda");
    });
            return result;
        };
    }]);
...