Próbki kodu

algorytm_quicksort.rb

class Sort
    attr_reader :my_array
    def initialize(my_array)
        @my_array = my_array
    end
    def switch_array(element, element2)
        @my_array[element], @my_array[element2] = @my_array[element2], @my_array[element]
    end
    def quicksort(p, r)
        if p < r then
            q = array_division(p, r)
            quicksort(p, q-1)
            quicksort(q+1, r)
        end
    end
    def array_division(p, r)
        axis = @my_array[r]
        i = p - 1
        p.upto(r-1) do |j|
            if @my_array[j] <= axis
                i = i+1
                switch_array(i, j)
            end       
        end
        switch_array(i+1, r)
        return i + 1
    end
end

algorytm_quicksort_spec.rb

require "sort"
describe Sort do
		before(:each) do
			@a = [9,3,4,5]
			@sort = Sort.new(@a)
		end
		describe "#new" do
	    it "should initialize given array with the same number of elements" do
	       @sort.my_array.size.should == @a.size
	    end
  	end
  	describe "#switch_array" do
  		it "should switch given values that one is point to other and vice versa" do
  			@sort.switch_array(0, 3)
  			@sort.my_array[0].should == 5
  			@sort.my_array[3].should == 9
  		end
  	end
  	describe "#quicksort" do
  		it "should sort given array" do
  			@sort.quicksort(0, 3)
  			@sort.my_array.should == [3,4,5,9]
  		end
  	end
end

application.js

function show_childrens(parent) {
  $(".category-childs").each(function () {
    $(this).hide();
  });
  if(parent != 0) {
    $("#childs-of-" + parent).show();
  }
}
function set_subcategory(id) {
  $(".category-childs").each(function(){
    var element_stay = "childs-of-" + id;
    if($(this).attr("id") != element_stay) {
      $(this).remove();
    }
  })
}
function message_check_all(status) {
  $(".message-check").each( function() {
    $(this).attr("checked",status);
  });
}
function message_checked(root_url) {
  var linki = ""
  $(".message-check").each( function(){
    if($(this).attr("checked") == "checked") {
      linki = linki + $(this).attr("value") + ", ";
    }
  });
  var root = root_url + "/messages/" + linki;
  $("#delete-message").attr("href", root);
}

category_spec.rb

require 'spec_helper'

describe Category do
	before(:each) do
		@category = Category.new
	end
  it "should not be valid without name" do
  	@category.should_not be_valid
  	@category.errors.include?(:name).should == true
  end
  it "should be valid with name" do
  	@category.name = "test"
  	@category.should be_valid
  	@category.errors.size.should == 0
  end
end