- http://david.heinemeierhansson.com/2014/tdd-is-dead-long-live-testing.html
- http://blog.8thlight.com/uncle-bob/2014/04/25/MonogamousTDD.html
- http://david.heinemeierhansson.com/2014/test-induced-design-damage.html
- http://blog.8thlight.com/uncle-bob/2014/05/01/Design-Damage.html
- http://david.heinemeierhansson.com/2014/slow-database-test-fallacy.html
- http://blog.8thlight.com/uncle-bob/2014/04/30/When-tdd-does-not-work.html
- https://www.destroyallsoftware.com/blog/2014/tdd-straw-men-and-rhetoric
- http://articles.coreyhaines.com/posts/active-record-spec-helper/
- http://martinfowler.com/bliki/UnitTest.html
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require 'yaml' | |
require 'erb' | |
require 'ostruct' | |
class Settings < OpenStruct | |
# Settings.new(:google_analytics) | |
def initialize(config_file_base_name) | |
super(YAML.load(ERB.new(File.read(Rails.root.join("config", "#{config_file_base_name}.yml"))).result)[Rails.env]) | |
end |
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sudo defaults write /Library/Preferences/com.apple.windowserver DisplayResolutionEnabled -bool YES; | |
sudo defaults delete /Library/Preferences/com.apple.windowserver DisplayResolutionDisabled; | |
// by the way, you need to logout and log back in for this to take effect. Or at least that's what | |
// Quartz Debug says. Who knows, maybe it's lying? | |
// P.S. Go to [Apple menu --> System Preferences --> Displays --> Display --> Scaled] after logging | |
// back in, and you'll see a bunch of "HiDPI" resolutions in the list to choose from. |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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# RSpec 2.0 syntax Cheet Sheet by http://ApproachE.com | |
# defining spec within a module will automatically pick Player::MovieList as a 'subject' (see below) | |
module Player | |
describe MovieList, "with optional description" do | |
it "is pending example, so that you can write ones quickly" | |
it "is already working example that we want to suspend from failing temporarily" do | |
pending("working on another feature that temporarily breaks this one") |