require 'spec'

dir = File.dirname __FILE__
require "#{dir}/spec_require"
require "#{dir}/../lib/ruby_ext/should"
require "#{dir}/../lib/ruby_ext/declarative_cache"

describe 'DeclarativeCache' do
	class CachedClass
		attr_accessor :value
		def value_get; @value end
		cache! :value_get
		
		attr_accessor :value2
		def value2_get; @value2 end
		
		attr_accessor :params
		def params_get param; @params[param] end 				
	end						
	
  # DeclarativeCache.cache! CachedClass, :value_get
	DeclarativeCache.cache! :cache_version_name, CachedClass, :value2_get
	DeclarativeCache.cache_with_params! CachedClass, CachedClass, :params_get	
	
	it "Simple Cache" do
		o = CachedClass.new
		o.value = 0
		o.value2 = 0
		o.value_get.should == 0
		o.value2_get.should == 0
		o.value = 1
		o.value2 = 1
		o.value_get.should == 0
		o.value2_get.should == 0
		DeclarativeCache.update CachedClass
		o.value_get.should == 1
		o.value2_get.should == 0
		DeclarativeCache.update :cache_version_name
		o.value2_get.should == 1
		DeclarativeCache.update CachedClass, :cache_version_name
	end
	
	it "Cache With Params" do
		o = CachedClass.new
		o.params = {:a => :b}
		o.params_get(:a).should == :b
		o.params = {:a => :c}
		o.params_get(:a).should == :b
		DeclarativeCache.update CachedClass
		o.params_get(:a).should == :c
	end
	
	class CachedClass2
		class << self
			attr_accessor :value
			def value_get; @value end 								
		end
	end				
	
	DeclarativeCache.cache! CachedClass2, CachedClass2.singleton_class, :value_get				
	
	it "Simple Cache" do
		CachedClass2.value = 0
		CachedClass2.value_get.should == 0
		CachedClass2.value = 1
		CachedClass2.value_get.should == 0
		DeclarativeCache.update CachedClass2
		CachedClass2.value_get.should == 1
	end
	
	class MultipleCacheVersions
		attr_accessor :value
		def value_get; @value end 								
			
		attr_accessor :value2
		def value2_get params; @value2 end
	end
	
	DeclarativeCache.cache! [:class, :resource_update, :security_update], MultipleCacheVersions, :value_get				
	DeclarativeCache.cache_with_params! [:class, :resource_update, :security_update], MultipleCacheVersions, :value2_get				
	
	it "Multiple cache versions" do
		o = MultipleCacheVersions.new
		o.value, o.value2 = 0, 0
		
		o.value_get.should == 0
		o.value = 1
		o.value_get.should == 0			
		DeclarativeCache.update :class
		o.value_get.should == 1
		o.value = 2
		o.value_get.should == 1
		DeclarativeCache.update :resource_update, :security_update
		o.value_get.should == 2
		
		o.value2_get("params").should == 0
	end
end