seako

def should_be_a_subset(superset, records_selected_by_scope, &condition)
  flunk "Your superset is empty" if superset.empty?
  flunk "Your scope did not select any records" if records_selected_by_scope.empty?

  records_selected_by_block, records_excluded_by_block = superset.partition(&condition)
  flunk "Your test condition did not select any records" if records_selected_by_block.empty?
  flunk "Your test condition did not exclude any records" if records_excluded_by_block.empty?

  records_selected_by_scope.map(&:id).should =~ records_selected_by_block.map(&:id)
end

seako

RSpec::Matchers.define :be_an_ordering_of do |all_records, condition|
  match do |ordered_records|
    should_be_an_ordering(all_records, ordered_records, &condition)
  end
end

def should_be_an_ordering(all_records, ordered_records, &condition)
  flunk "There are no records" if all_records.empty?
  flunk "Your ordered records are the same as the default ordering" if all_records == ordered_records

seako

tweaking the colors of mbostock's Color Flood III

Prim’s algorithm is used to flood a 960×500 canvas with color.

Compare to Wilson’s algorithm and randomized breadth-first traversal.

seako

require 'benchmark'

class LocalLambda
  def local_lambda
    a_lambda = -> { 1 }
    a_lambda.call
    1
  end

  def nested_definition

seako

Keybase proof

I hereby claim:

• I am seako on github.
• I am seako (https://keybase.io/seako) on keybase.
• I have a public key ASAhRer4e4zz5ykwt06S9Huk2MyWE0QMRWWghwMOevxaLQo

To claim this, I am signing this object: