Merge pull request kanwei#22 from ysksn/master

small re-factoring

Author: kanwei

spec/heap_spec.rb

@@ -38,7 +38,7 @@
     before(:each) do
       @random_array = []
       @num_items = 100
-      @num_items.times { |x| @random_array << rand(@num_items) }
+      @num_items.times { @random_array << rand(@num_items) }
       @heap = Containers::MaxHeap.new(@random_array)
     end
 

spec/sort_spec.rb

@@ -15,7 +15,7 @@
 
   it "should work for a container of size 1" do
     one_array = [1]
-    @sorts.each { |sort| Sort.send(sort, one_array).should eql(one_array) }
+    @sorts.each { |sort| Sort.send(sort, one_array).should eql([1]) }
   end
 
   it "should work for random arrays of numbers" do
@@ -26,4 +26,4 @@
     @sorts.each { |sort| Sort.send(sort, rand_array.dup).should eql(sorted_array) }
   end    
 
-end
+end