Rails - Sep 2013 - Speed up image processing of Paperclip in Acceptance Tests

Hi All, 

I have a question here: How to Speed up image processing of Paperclip in 
Acceptance Tests

When running capybara feature specs I can see lots of Slow factory notices 
which are populated byfactory_girl. These Slow factory things heavy slow 
down the feature specs, I think, even feature specs are intrinsic slow 
specs. Then I had some inspect and found out most of the Slow factory was 
caused bypaperclip. We had model using paperclip here:

FactoryGirl.define do
  factory :asset do
    image Rails.root.join(''spec/fixtures/sample.jpg'').open
  endend

So I wonder if there''s a way like test mode for paperclip to speed up 
tests. I have simple solution here: Just copy the original file instead of 
actually crop it.

The stackoverflow link: 
http://stackoverflow.com/questions/18605203/speed-up-image-processing-of-paperclip-in-acceptance-tests

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On Sep 4, 2013, at 12:41 AM, Ryan
<ryancheung.go-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hi All, 
> 
> I have a question here: How to Speed up image processing of Paperclip in
Acceptance Tests
> 
> When running capybara feature specs I can see lots of Slow factory notices
which are populated byfactory_girl. These Slow factory things heavy slow down
the feature specs, I think, even feature specs are intrinsic slow specs. Then I
had some inspect and found out most of the Slow factory was caused bypaperclip.
We had model using paperclip here:
> 
> FactoryGirl.define do
> 
>   factory 
> :asset do
> 
>     image 
> Rails.root.join(''spec/fixtures/sample.jpg'').
> open
>   
> end
> end
> So I wonder if there''s a way like test mode for paperclip to speed
up tests. I have simple solution here: Just copy the original file instead of
actually crop it.
> 
> The stackoverflow link:
http://stackoverflow.com/questions/18605203/speed-up-image-processing-of-paperclip-in-acceptance-tests
Wondering also, how many times do you test the same paths with this? Maybe
judicious use of before(:all) for some tests might speed things up as well?
Another though (not really knowing if this makes sense) — if your image is 1x1
pixels does it do anything? You really should not need to test the actual image
rendering bits more than once or twice in your whole suite.

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Speed up image processing by using a easy to use image scaling, image
resizing, image cropping or image flipping pulgins. Adopt the simplest
apis and sample codes in this tutorial.

http://www.rasteredge.com/how-to/asp-net-imaging/imaging-processing/

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