keithrbennett

/Users/kbennett/.rvm/rubies/ruby-2.1.2/bin/ruby -S rspec spec/avatar_spec.rb spec/basic_session_spec.rb spec/comment_spec.rb spec/configuration_spec.rb spec/field_parser_spec.rb spec/issue_spec.rb spec/jiralicious_spec.rb spec/project_avatar_spec.rb spec/project_spec.rb spec/search_result_spec.rb spec/search_spec.rb spec/user_avatar_spec.rb spec/user_spec.rb spec/watchers_spec.rb
FF..FF..F............F.F.FFFF..FFFFF......FF...FFF...F...FF...FFFFFF..

Failures:

  1) Jiralicious avatar obtain system avatar list
     Failure/Error: avatar = Jiralicious::Avatar.system('user')
     NoMethodError:
       The property 'system' is not defined for Jiralicious::Avatar.
     # ./lib/jiralicious/avatar.rb:19:in `initialize'

keithrbennett

# This is the source code included in the Ruby Lambdas presentation
# given at Steel City Ruby Conf in Pittsburgh, Pennsylvania, USA on August 15, 2014.

# This file is available at:
# https://gist.github.com/keithrbennett/0df037c29198ab401cf8

# and the presentation slides PDF is at:
# https://speakerdeck.com/keithrbennett/ruby-lambdas

# -- Keith Bennett (@keithrbennett)

keithrbennett

2.1.2 :001 > require 'dot_notation'
 => true
2.1.2 :002 > h = { a: { b: 3 }}
 => {:a=>{:b=>3}}
2.1.2 :004 > DotNotation.dot(h, 'a.b')
NoMethodError: undefined method `dot' for DotNotation:Module
	from (irb):4
	from /Users/kbennett/.rvm/rubies/ruby-2.1.2/bin/irb:11:in `<main>'

keithrbennett

module DotNotation
  # ...
  def dot_lambda(a_hash)
    ->(dotted_string) { DotNotation.dot(a_hash, dotted_string)}
  end
end

dl = dot_lambda(my_hash)
dl.('a.b')
dl.('c.d')

keithrbennett

#!/usr/bin/env ruby

# Modification of @tbloncar's script at
# https://gist.github.com/tbloncar/05265cb74762754b812d.

# @tbloncar, thank you for the gist.  I see now that I should
# mention the performance cost of defining lambdas in methods
# in my presentation.

# Added ConstantLambdaApproach.  Results I got with Ruby 2.1.2 were:

keithrbennett

require 'diffy'

s1 = "apple\npear\npapaya\nmango\n"
s2 = "apple\npapaya\nmango\njackfruit\n"
diff = Diffy::Diff.new(s1, s2).to_s
puts diff

=begin
Output is:

keithrbennett

(take 10 (map first (iterate (fn [[a b]] [b (+ a b)]) [0 1])))

keithrbennett

Ruby 1.9.3:

➜  dnsruby git:(master) ✗ ruby test/ts_dnsruby.rb
/Users/kbennett/.rvm/rubies/ruby-1.9.3-p547/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- test/ts_online.rb (LoadError)
	from /Users/kbennett/.rvm/rubies/ruby-1.9.3-p547/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in `require'
	from test/ts_dnsruby.rb:16:in `<main>'
	
➜  dnsruby git:(master) ✗ rake test
ruby setup.rb
setup.rb:789: Use RbConfig instead of obsolete and deprecated Config.

keithrbennett

➜  dnsruby git:(lowercase-dnsruby-dirname) gem build *gemspec
WARNING:  no description specified
WARNING:  deprecated autorequire specified
WARNING:  pessimistic dependency on rake (~> 10.3.2, development) may be overly strict
  if rake is semantically versioned, use:
    add_development_dependency 'rake', '~> 10.3', '>= 10.3.2'
WARNING:  See http://guides.rubygems.org/specification-reference/ for help
  Successfully built RubyGem
  Name: dnsruby
  Version: 1.56.0

keithrbennett

I need to test a type-parameterized data structure
basically, I want to loop through various types 
such as Long or BigInt, and run the same unit test suite with them:

[fake syntax]  Seq(Long, BigInt).foreach(runTestSuite[_])

that is, I don't want to copy-paste code only because 
I want to test CMS[Long], CMS[BigInt], etc.
Is there any (easy) way to do this?