phiggins

require 'benchmark/ips'

a = (0..10).to_a

Benchmark.ips do |x|
  x.report("push")      { a.dup.push(100) }
  x.report("shovel")    { a.dup << 100 }
  x.report("concat")    { a.dup.concat([100]) }
  x.report("+")         { a + [100] }
  x.report("unshift")   { a.dup.unshift(100) }

phiggins

require 'objspace'
require 'active_record'
require 'benchmark/ips'

ActiveRecord::Base.establish_connection adapter: "sqlite3",
                                        database: ":memory:"

ActiveRecord::Base.connection.instance_eval do
    create_table(:articles) { |t| t.string :name }
end

phiggins

test_error.rb:3: [BUG] Segmentation fault at 0x00000000000000
ruby 2.1.3p242 (2014-09-19 revision 47630) [x86_64-linux]

-- Control frame information -----------------------------------------------
c:0005 p:---- s:0012 e:000011 CFUNC  :inspect
c:0004 p:---- s:0010 e:000009 CFUNC  :inspect
c:0003 p:---- s:0008 e:000007 CFUNC  :p
c:0002 p:0024 s:0004 E:001dc8 EVAL   test_error.rb:3 [FINISH]
c:0001 p:0000 s:0002 E:001f18 TOP    [FINISH]

phiggins

 > elements = {a1: 'a', b1: 'b', b2: 'b', b3: 'b', c1: 'c'}
 => {:a1=>"a", :b1=>"b", :b2=>"b", :b3=>"b", :c1=>"c"}
 > elements.group_by {|(_, val)| val }.flat_map {|(_, vals)| vals.shuffle }
 => [[:a1, "a"], [:b2, "b"], [:b3, "b"], [:b1, "b"], [:c1, "c"]] 
 > elements.group_by {|(_, val)| val }.flat_map {|(_, vals)| vals.shuffle }
 => [[:a1, "a"], [:b1, "b"], [:b3, "b"], [:b2, "b"], [:c1, "c"]] 
 > elements.group_by {|(_, val)| val }.flat_map {|(_, vals)| vals.shuffle }
 => [[:a1, "a"], [:b1, "b"], [:b3, "b"], [:b2, "b"], [:c1, "c"]] 
 > elements.group_by {|(_, val)| val }.flat_map {|(_, vals)| vals.shuffle }
 => [[:a1, "a"], [:b2, "b"], [:b1, "b"], [:b3, "b"], [:c1, "c"]] 

phiggins

diff --git a/rspec-support/lib/rspec/support/hunk_generator.rb b/rspec-expectations/lib/rspec/expectations/differ.rb
index 5b0d68d..cef9a1f 100644
--- a/rspec-support/lib/rspec/support/hunk_generator.rb
+++ b/rspec-expectations/lib/rspec/expectations/differ.rb
@@ -1,10 +1,7 @@
-require 'diff/lcs'
-require 'diff/lcs/hunk'
-
 module RSpec
-  module Support

phiggins

diff --git a/rspec-support/spec/rspec/support/encoded_string_spec.rb b/rspec-expectations/spec/rspec/expectations/encoded_string_spec.rb
index a9d4052..95b2f97 100644
--- a/rspec-support/spec/rspec/support/encoded_string_spec.rb
+++ b/rspec-expectations/spec/rspec/expectations/encoded_string_spec.rb
@@ -1,6 +1,4 @@
-require 'spec_helper'
-
-module RSpec::Support
+module RSpec::Expectations
   describe EncodedString do

phiggins

diff --git a/rspec-support/lib/rspec/support/encoded_string.rb b/rspec-expectations/lib/rspec/expectations/encoded_string.rb
index 654a208..eeb0b16 100644
--- a/rspec-support/lib/rspec/support/encoded_string.rb
+++ b/rspec-expectations/lib/rspec/expectations/encoded_string.rb
@@ -1,5 +1,5 @@
 module RSpec
-  module Support
+  module Expectations
     # @private
     class EncodedString

phiggins

diff --git a/rspec-support/lib/rspec/support/differ.rb b/rspec-expectations/lib/rspec/expectations/diff_presenter.rb
index 26da8d8..dd6e95d 100644
--- a/rspec-support/lib/rspec/support/differ.rb
+++ b/rspec-expectations/lib/rspec/expectations/diff_presenter.rb
@@ -1,27 +1,14 @@
-RSpec::Support.require_rspec_support 'encoded_string'
-RSpec::Support.require_rspec_support 'hunk_generator'
-
+require 'diff/lcs'
+require 'diff/lcs/hunk'

phiggins

diff --git a/rspec-support/spec/rspec/support/differ_spec.rb b/rspec-expectations/spec/rspec/expectations/diff_presenter_spec.rb
index 69b1237..0c19de4 100644
--- a/rspec-support/spec/rspec/support/differ_spec.rb
+++ b/rspec-expectations/spec/rspec/expectations/diff_presenter_spec.rb
@@ -1,18 +1,21 @@
 # encoding: utf-8
-require 'spec_helper'
 require 'ostruct'
 
 module RSpec

phiggins

--- rspec-expectations/lib/rspec/expectations/diff_presenter.rb	2014-03-23 23:31:14.214580118 -0700
+++ rspec-support/lib/rspec/support/diff_presenter.rb	2014-03-23 23:27:18.402592651 -0700
@@ -1,14 +1,26 @@
-require 'diff/lcs'
-require 'diff/lcs/hunk'
+require "rspec/support/encoded_string"
+require "rspec/support/differ"
 require 'pp'
-RSpec::Support.require_rspec_expectations "encoded_string"
-RSpec::Support.require_rspec_expectations "differ"