Add test case.

Author: huangzg

.gitignore

@@ -8,4 +8,6 @@
 *.log
 *.gem
 *.sqlite3
+*.swp
+*.swo
 

Gemfile.lock

@@ -0,0 +1,97 @@
+PATH
+  remote: .
+  specs:
+    second_level_cache (1.1.1)
+      rails (> 3.0)
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    actionmailer (3.2.1)
+      actionpack (= 3.2.1)
+      mail (~> 2.4.0)
+    actionpack (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
+      builder (~> 3.0.0)
+      erubis (~> 2.7.0)
+      journey (~> 1.0.1)
+      rack (~> 1.4.0)
+      rack-cache (~> 1.1)
+      rack-test (~> 0.6.1)
+      sprockets (~> 2.1.2)
+    activemodel (3.2.1)
+      activesupport (= 3.2.1)
+      builder (~> 3.0.0)
+    activerecord (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
+      arel (~> 3.0.0)
+      tzinfo (~> 0.3.29)
+    activeresource (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
+    activesupport (3.2.1)
+      i18n (~> 0.6)
+      multi_json (~> 1.0)
+    arel (3.0.0)
+    builder (3.0.0)
+    erubis (2.7.0)
+    hike (1.2.1)
+    i18n (0.6.0)
+    journey (1.0.1)
+    json (1.6.5)
+    mail (2.4.1)
+      i18n (>= 0.4.0)
+      mime-types (~> 1.16)
+      treetop (~> 1.4.8)
+    mime-types (1.17.2)
+    multi_json (1.0.4)
+    polyglot (0.3.3)
+    rack (1.4.1)
+    rack-cache (1.1)
+      rack (>= 0.4)
+    rack-ssl (1.3.2)
+      rack
+    rack-test (0.6.1)
+      rack (>= 1.0)
+    rails (3.2.1)
+      actionmailer (= 3.2.1)
+      actionpack (= 3.2.1)
+      activerecord (= 3.2.1)
+      activeresource (= 3.2.1)
+      activesupport (= 3.2.1)
+      bundler (~> 1.0)
+      railties (= 3.2.1)
+    railties (3.2.1)
+      actionpack (= 3.2.1)
+      activesupport (= 3.2.1)
+      rack-ssl (~> 1.3.2)
+      rake (>= 0.8.7)
+      rdoc (~> 3.4)
+      thor (~> 0.14.6)
+    rake (0.9.2.2)
+    rdoc (3.12)
+      json (~> 1.4)
+    redis (2.2.2)
+    sprockets (2.1.2)
+      hike (~> 1.2)
+      rack (~> 1.0)
+      tilt (~> 1.1, != 1.3.0)
+    sqlite3 (1.3.5)
+    thor (0.14.6)
+    tilt (1.3.3)
+    treetop (1.4.10)
+      polyglot
+      polyglot (>= 0.3.1)
+    tzinfo (0.3.31)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  activerecord (> 3.0)
+  rake
+  redis
+  second_level_cache!
+  sqlite3

Rakefile

@@ -1,2 +1,10 @@
 #!/usr/bin/env rake
-require "bundler/gem_tasks"
+require 'bundler/gem_tasks'
+require 'rake/testtask'
+
+task :default => :test
+
+Rake::TestTask.new do |t|
+  t.libs << "lib" << "test"
+  t.test_files = FileList['test/**/*_test.rb']
+end

second_level_cache.gemspec

@@ -18,6 +18,7 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency "rails", ["> 3.0"]
 
   gem.add_development_dependency "activerecord", ["> 3.0"]
+  gem.add_development_dependency "sqlite3"
   gem.add_development_dependency "redis"
   gem.add_development_dependency "rake"
 end

test/active_record/model/book.rb

@@ -0,0 +1,11 @@
+ActiveRecord::Base.connection.create_table(:books, :force => true) do |t|
+  t.string  :title
+  t.string  :body
+  t.integer :user_id
+end
+
+class Book < ActiveRecord::Base
+  acts_as_cached
+
+  belongs_to :user
+end

test/active_record/model/user.rb

@@ -0,0 +1,10 @@
+ActiveRecord::Base.connection.create_table(:users, :force => true) do |t|
+  t.string :name
+  t.string :email
+end
+
+class User < ActiveRecord::Base
+  acts_as_cached
+
+  has_many :books
+end

test/active_record/second_level_cache_test.rb

@@ -0,0 +1,43 @@
+require 'active_record/test_helper'
+
+class ActiveRecord::SecondLevelCacheTest < Test::Unit::TestCase
+  def setup
+    @user = User.create :name => 'csdn', :email => '[email protected]'
+  end
+
+  def teardown
+    User.delete_all
+  end
+
+  def test_should_get_cache_key
+    assert_equal "users/#{@user.id}", @user.second_level_cache_key
+  end
+
+  def test_should_have_cache_when_create
+    no_connection do
+      assert_not_nil User.cache_store.get(@user.second_level_cache_key)
+      assert_equal @user, User.find(@user.id)
+    end
+  end
+
+  def test_should_update_cache_when_update
+    @user.update_attributes :name => 'change'
+
+    no_connection do
+      assert_equal 'change', User.find(@user.id).name
+    end
+  end
+
+  def test_should_get_cache_when_use_singular_association
+    book = @user.books.create
+
+    no_connection do
+      assert_equal @user, book.user
+    end
+  end
+
+  def test_should_expire_cache_when_destroy
+    @user.destroy
+    assert_nil User.cache_store.get(@user.second_level_cache_key)
+  end
+end

test/active_record/test_helper.rb

@@ -0,0 +1,26 @@
+require 'test_helper'
+require 'active_record'
+
+def open_test_db_connect
+  ActiveRecord::Base.establish_connection(
+    :adapter => 'sqlite3',
+    :database => 'test/test.sqlite3'
+  )
+end
+open_test_db_connect
+
+def close_test_db_connect
+  ActiveRecord::Base.connection.disconnect!
+end
+
+class Test::Unit::TestCase
+  def no_connection
+    close_test_db_connect
+    assert_nothing_raised { yield }
+  ensure
+    open_test_db_connect
+  end
+end
+
+require 'active_record/model/user'
+require 'active_record/model/book'

test/test_helper.rb

@@ -0,0 +1,6 @@
+require 'rubygems'
+require 'bundler/setup'
+require 'second_level_cache'
+require 'test/unit'
+
+$redis = Redis.new