optimize_memory_spec.rb in picky-4.30.0

- old
+ new

@@ -2,24 +2,27 @@
 #
 require 'spec_helper'
 
 describe "Memory optimization" do
   
-  it 'saves memory' do
+  before(:each) do
     # Remove all indexes.
     Picky::Indexes.clear_indexes
     
-    index = Picky::Index.new :memory_optimization do
+    @index = Picky::Index.new :memory_optimization do
       category :text1
       category :text2
       category :text3
       category :text4
     end
-    try = Picky::Search.new index
     
-    thing = Struct.new(:id, :text1, :text2, :text3, :text4)
-    
+    @thing = Struct.new(:id, :text1, :text2, :text3, :text4)
+  end
+  
+  attr_reader :index, :thing
+  
+  it 'saves memory' do
     require 'objspace'
     
     GC.start
     memsize_without_added_thing = ObjectSpace.memsize_of_all(Array)
     GC.start
@@ -36,9 +39,43 @@
     
     GC.start
     memsize_with_optimized_memory = ObjectSpace.memsize_of_all(Array)
     GC.start
     
+    # Still larger than with nothing.
+    memsize_without_added_thing.should < memsize_with_optimized_memory
+    # But smaller than with added.
     memsize_with_optimized_memory.should < memsize_with_added_thing
+  end
+  
+  it 'saves a certain amount of memory' do
+    require 'objspace'
+    
+    GC.start
+    memsize_without_added_thing = ObjectSpace.memsize_of_all(Array)
+    GC.start
+    
+    index.add thing.new(1, 'one', 'two', 'three', 'four')
+    
+    GC.start
+    memsize_with_added_thing = ObjectSpace.memsize_of_all(Array)
+    GC.start
+    
+    10.times do |i|
+      index.add thing.new(i+1, 'one', 'two', 'three', 'four')
+    end
+    
+    GC.start
+    memsize_with_readded_thing = ObjectSpace.memsize_of_all(Array)
+    GC.start
+    
+    Picky::Indexes.optimize_memory
+    
+    GC.start
+    memsize_with_optimized_memory = ObjectSpace.memsize_of_all(Array)
+    GC.start
+    
+    # Optimize saves some memory.
+    (memsize_with_optimized_memory + 2952).should == memsize_with_readded_thing
   end
 
 end