javascript - Method under test appearing in unit test other than in the action -


i wondering if give me pointers on designing unit tests, function being tested appears in test other in unit's action.

i'm writing server side javascript node , using rsvp asynchronous calls restful backend.

i structure unit tests follows.

//setup //action //assertion //cleanup

right now, i'm building function asynchronously deletes enteries in database unit test looks this.

"deletingfunction_1entry_returns1entrydeleted": function() {       return new rsvp.promise(function( resolve, reject ) {       //setup       var databaseentry = { "info": "info" };       setup( databaseentry ).then(function( xpostedentries ) {       //if setup promise resolves then...           //action           xdelete( xpostedentries ).then(function( xdeletedenteries ) {               //assertion               if ( xpostedentries === xdeletedentries ) {               //if posted enteries matched deleted enteries then...                   resolve();               } else {               //otherwise posted enteries did not match deleted                 //enteries so...                   reject("the posted enteries did not match deleted enteries.");               }               });       }, function( xpostedenteries ) {       //otherwise setup promise did not resolve so...           //cleanup           /***************************************************************/           /* here's i'm having trouble. if setup fails post */           /* of entries database test       */                                         /* scratch want clean posts 'were'    */           /* posted remove them database, i'd using */           /* deleting function, function i'm testing.  */           /* how can redesign unit test not use function  */           /* it's testing.                                          */           /***************************************************************/           reject("the setup failed.");          }); });

}

edited: wrote function truncates database table clean still appreciate pointers on how improve testing.

this isn't unit test because has side-effects. of course can't use "delete" function you're testing. doesn't exist until passes unit tests. unit test needs unit test.

probably, want database connection dependency injected, abstract datastore. unit test use mock datastore.


Comments

Post a Comment

Popular posts from this blog

get url and add instance to a model with prefilled foreign key :django admin -

Image
i have page in each contest shown in row. each row contains contest id , link other model names have foreign key contest. news model: class news(models.model): title = models.charfield(max_length=50, null=true) description = models.textfield() time = models.timefield( default= datetime.datetime.now().time()) contest = models.foreignkey(contest) i want use admin adding , changing these models. want when user clicks on 'news' has foreign key contest id=1, shows list of news value foreign key. use {% instance in instances %} <tr class="{% cycle 'row1' 'row2' %}"> <td>{{ instance.title }}</td> <td>{{ instance.starttime }}</td> <td>{{ instance.timespan }}</td> <td>{{ instance.date }}</td> <td><a href="/adm...
Read more

css - Make div keyboard-scrollable in jQuery Mobile? -

from can tell, although jquery-mobile-powered pages can contain divs overflow set scroll or auto, , these divs can scrolled one-screen bar or mouse wheel, cannot scrolled using arrow keys, page-up/page-down, or home/end. instead, official "page" div (with data-role="page") absorbs input. perhaps other divs can't acquire focus, i'm not sure. is there way around this? edit: jsfiddle of simple example: https://jsfiddle.net/qogz0shx/ <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js"> </script> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"/> <style> #outer { overflow:scroll; height: 50vh; width: 50vw; } #inner { height: 500vh; width: 500vw; } ...
Read more

ruby on rails - Seeing duplicate requests handled with Unicorn -

recently upgraded our ec2 instances c3.large in order boost more unicorn workers handle increased traffic our site. (6xworkers per machine - 2 ec2 instances). when did this, started seeing duplicate records being created! looks somehow, maybe 2 unicorn workers attempting process same request? in nginx logs see 1 [post] request particular rails controller - yet 2 records being created in database. i'm hitting kind of race condition issue - have no idea how debug this. doesn't happen time, when it's frustrating well. noticed 2 database records within 5 seconds of each other. (and yes disable button when user clicks submit button). unicorn 4.8.2 ruby 1.9.3 rails 3.2.14 any great! thanks! although may not fix problem, upgrade ruby 2.0.0. there blog mentioning idea upgrade ruby 2.0.0 if using unicorn. for example: https://www.digitalocean.com/community/articles/how-to-optimize-unicorn-workers-in-a-ruby-on-rails-app specifically: if using ruby 1.9, ...
Read more