javascript - unit testing for input tag with file type -


this directive file input

angular.module("app", []); angular.module("app").directive("filesinput", function () { return {     require: "ngmodel",     link: function postlink(scope, elem, attrs, ngmodel) {         elem.on("change", function (e) {             console.log('here');             var files = elem[0].files;             ngmodel.$setviewvalue(files);             console.log(files[0].size);         })     } } });

this html code

<div>     <input type="file" files-input ng-model="filearray" multiple> </div>

this unit testing. goal mocking actual file or file object triggering change event code inside directive can run. use jasmine. no ui testing in case

describe('unit testing', function () { var $compile,     $rootscope;  beforeeach(module('app'));  beforeeach(inject(function (_$compile_, _$rootscope_) {     $compile = _$compile_;     $rootscope = _$rootscope_; }));  it('test file directive', function () {     var element = $compile("<input type='file' files-input ng-model='filearray'>")($rootscope);     $rootscope.$digest();  }); });

i not find way mock file object , trigger change event code inside directive can run. using jasmine


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