knzconnor

Keybase proof

I hereby claim:

• I am timocratic on github.
• I am timocratic (https://keybase.io/timocratic) on keybase.
• I have a public key whose fingerprint is 7E07 1867 9F3F 2174 FA58 27C5 B405 8899 5CD3 22B9

To claim this, I am signing this object:

knzconnor

# If you return self you have either mutated self, mutated something else (essentially global, even worse)
# or thrown away the change as a NOOP. Let's play with examples? 

knzconnor

namespace :db do
  task :migrate => :clear_load_paths do
    Dependencies.load_paths = @old_load_paths
  end

  task :clear_load_paths do
    @old_load_paths = Dependencies.load_paths
    Dependencies.load_paths = []
  end
end

knzconnor

def Object.method_defined_where(method)
  self.ancestors.detect { |a| a.methods(false).include?(method.to_s) }
end

#Usage - define in your .irbrc and then:
#File.method_defined_where('read')
#=> IO

#Alternatively it has been added to my copy of utility_belt: http://github.com/timocratic/utility-belt/commit/74397c4f8be135cf46f65ca509ddb90e2e47799e

knzconnor

Note to Self

Test

Tests build confidence. Write 'em. They'll save your ass, and they'll let you take a chainsaw to your code without being afraid of unintended consequences.

Automate

knzconnor

def foo(value)
  "#{value}foo"
end
[1,2].map &method(:foo)
#=> ["1foo", "2foo"]

def foo(value)
  "#{value[0]}foo"
end
[[1,2],[3,4]].map &method(:foo)

knzconnor

test = Rake::Task['test']
test.clear
desc 'Run all units, functionals, integration, libs'
task :test do
  run_sets_of_tests(%w(test:units test:functionals test:integration test:libs))
end

knzconnor

#stolen from http://pastie.org/395671 twitter:@seacreature.  Just repo'ed here so I can find it again
require "irb"
IRB.setup(nil)
IRB.conf[:MAIN_CONTEXT] = IRB::Context.new(IRB::Irb.new)
require "irb/ext/multi-irb"
IRB.irb(nil,binding)

knzconnor

class RspecInTU
  class << self
    alias it define_method
  end
  it "should say hello" do
    puts "hello"
  end
end
RspecInTU.new.send "should say hello"

knzconnor

#Or just check-out: http://github.com/timocratic/test_benchmark/tree/master
#It's only one file too: http://github.com/timocratic/test_benchmark/blob/832b2217451b49ed218d2db31dfad2b81a2399eb/lib/test_benchmark.rb
#Go ahead and steal anything you want from it - or even better fork it and add what features you like