Streamline TDD with Spork & Guard
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Streamline TDD with Spork & Guard
- 1. Spork & Guard || How To Streamline Your TDD Process Arik Fraimovich @arikfr Ruby Underground, August 2011
- 2. The Problem $ time rails runner “puts 1” 1 real 0m14.917s user 0m10.932s sys 0m3.007s
- 3. $ rails new timetest $ cd timetest $ bundle $ time rails runner “puts 1” 2.30s user 0.63s system 77% cpu 3.786 total
- 4. The Problem $ time rspec ./spec/models/asset_spec.rb Finished in 0.02351 seconds real 0m19.014s user 0m13.108s sys 0m3.440s
- 5. The Problem $ time rspec ./spec/models/asset_spec.rb Finished in 0.02351 seconds real 0m19.014s user 0m13.108s sys 0m3.440s
- 6. The Problem $ time rspec ./spec/models/asset_spec.rb Finished in 0.02351 seconds real 0m19.014s user 0m13.108s sys 0m3.440s
- 7. The Solution Spork (supports RSpec, Test::Unit, Cucumber) https://github.com/timcharper/spork Guard https://github.com/guard/guard Guard-Spork https://github.com/guard/guard-spork Guard-RSpec https://github.com/guard/guard-rspec
- 8. $ guard # starts all your “guards” in one command $ time rspec ./spec/models/asset_spec.rb Finished in 0.01704 seconds real 0m3.046s user 0m0.400s sys 0m0.116s
- 9. $ guard # starts all your “guards” in one command $ time rspec ./spec/models/asset_spec.rb Finished in 0.01704 seconds real 0m3.046s user 0m0.400s sys 0m0.116s
- 10. $ guard # starts all your “guards” in one command $ time rspec ./spec/models/asset_spec.rb Finished in 0.01704 seconds real 0m3.046s user 0m0.400s sys 0m0.116s
- 11. Guard-RSpec
- 13. Wow, looks simple... It is, but there are some caveats when using other gems (Devise, Mongoid, FactoryGirl) Collection of helpful links to help you solve (some of) them: https://gist.github.com/1118210
- 14. Other options? Isolation Just don’t run Rails when running specs...
- 17. Questions?
Notas del editor
- How many use Rails3? How many practice TDD? How many suffer as result?\n
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- So you wait 14 seconds for Rails to boot, to run a 0.02 seconds spec. Now try to do it few times every minute.\n
- So you wait 14 seconds for Rails to boot, to run a 0.02 seconds spec. Now try to do it few times every minute.\n
- Spork is Tim Harper’s implementation of test server\nSpork runs on POSIX systems using fork. It also runs on windows by pre-populating a pool of ready processes (referred to here as the “magazine” strategy).\nGuard is a command line tool that easily handle events on files modifications.\n\n
- Why still 3 seconds? Because there are still some things we reload on every run of specs (although this can be probably optimized).\nBesides this, you also save time by not having to run specs manually. So guard-rspec is relevant even if you don't have a big Rails project or non Rails project at all.\n\n
- Why still 3 seconds? Because there are still some things we reload on every run of specs (although this can be probably optimized).\nBesides this, you also save time by not having to run specs manually. So guard-rspec is relevant even if you don't have a big Rails project or non Rails project at all.\n\n
- Automatic spec runs\nGrowl notifications\nRe runs your specs until they’re green\n
- Show spec_helper...\n
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