rails--rails/activesupport/test/caching_test.rb

require 'abstract_unit'

class CacheStoreSettingTest < Test::Unit::TestCase
  def test_file_fragment_cache_store
    store = ActiveSupport::Cache.lookup_store :file_store, "/path/to/cache/directory"
    assert_kind_of(ActiveSupport::Cache::FileStore, store)
    assert_equal "/path/to/cache/directory", store.cache_path
  end
  
  def test_drb_fragment_cache_store
    store = ActiveSupport::Cache.lookup_store :drb_store, "druby://localhost:9192"
    assert_kind_of(ActiveSupport::Cache::DRbStore, store)
    assert_equal "druby://localhost:9192", store.address
  end

  def test_mem_cache_fragment_cache_store
    store = ActiveSupport::Cache.lookup_store :mem_cache_store, "localhost"
    assert_kind_of(ActiveSupport::Cache::MemCacheStore, store)
    assert_equal %w(localhost), store.addresses
  end

  def test_object_assigned_fragment_cache_store
    store = ActiveSupport::Cache.lookup_store ActiveSupport::Cache::FileStore.new("/path/to/cache/directory")
    assert_kind_of(ActiveSupport::Cache::FileStore, store)
    assert_equal "/path/to/cache/directory", store.cache_path
  end
end

uses_mocha 'high-level cache store tests' do
  class CacheStoreTest < Test::Unit::TestCase
    def setup
      @cache = ActiveSupport::Cache.lookup_store(:memory_store)
    end

    def test_fetch_without_cache_miss
      @cache.stubs(:read).with('foo', {}).returns('bar')
      @cache.expects(:write).never
      assert_equal 'bar', @cache.fetch('foo') { 'baz' }
    end

    def test_fetch_with_cache_miss
      @cache.stubs(:read).with('foo', {}).returns(nil)
      @cache.expects(:write).with('foo', 'baz', {})
      assert_equal 'baz', @cache.fetch('foo') { 'baz' }
    end

    def test_fetch_with_forced_cache_miss
      @cache.expects(:read).never
      @cache.expects(:write).with('foo', 'bar', :force => true)
      @cache.fetch('foo', :force => true) { 'bar' }
    end
  end
end