# Run tests faster in command line mode?

**URL:** <https://discuss.emberjs.com/t/run-tests-faster-in-command-line-mode/9610>\
**Category:** Testing\
**Created:** [January 30, 2016, 10:59am UTC](https://discuss.emberjs.com/t/run-tests-faster-in-command-line-mode/9610 "2016-01-30T10:59:21Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![GCorbel](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.emberjs.com/gcorbel/32/11010_2.png) [@GCorbel](https://discuss.emberjs.com/u/GCorbel)\
**Post date:** [January 30, 2016, 10:59am UTC](https://discuss.emberjs.com/t/run-tests-faster-in-command-line-mode/9610/1 "2016-01-30T10:59:21Z")

</div>

Hi,

I want to test my app and I prefer to use command lines instead of the server but I find it a lot slower. Here is an example :

```
time ember test --filter CreateSubscriptionsService
Future versions of Ember CLI will not support v4.2.6. Please update to Node 0.12 or io.js.
version: 1.13.8
Built project successfully. Stored in "/frontend/tmp/class-tests_dist-HY1vdEkR.tmp".
ok 1 PhantomJS 2.1 - CreateSubscriptionsService returns
ok 2 PhantomJS 2.1 - CreateSubscriptionsService returns true

1..2
# tests 2
# pass 2
# fail 0

# ok
ember test --filter CreateSubscriptionsService 9.32s user 1.15s system 83% cpu 12.551 total

```

The output format is really better than the server version and I’m looking for a way to speed up this.

I looked for a way to keeps the server running in background without success. As I understand, ember use Testem and I didn’t find this option in testem.

I tried with karma but I find it a lot more complicated. I have to use browserify, babel etc. and I have a lot of problems. I didn’t find a good resource to explain that.

Does someone have a solution?