Upgrade to Rails 2.2.0

As a side benefit, fix an (non-user-visible) bug in display_s5().
Also fixed a bug where removing orphaned pages did not expire cached summary pages.

vendor/rails/activesupport/test/caching_test.rb

@@ -70,3 +70,104 @@ uses_mocha 'high-level cache store tests' do
     end
   end
 end
+
+# Tests the base functionality that should be identical across all cache stores.
+module CacheStoreBehavior
+  def test_should_read_and_write_strings
+    @cache.write('foo', 'bar')
+    assert_equal 'bar', @cache.read('foo')
+  end
+
+  def test_should_read_and_write_hash
+    @cache.write('foo', {:a => "b"})
+    assert_equal({:a => "b"}, @cache.read('foo'))
+  end
+
+  def test_should_read_and_write_nil
+    @cache.write('foo', nil)
+    assert_equal nil, @cache.read('foo')
+  end
+
+  def test_fetch_without_cache_miss
+    @cache.write('foo', 'bar')
+    assert_equal 'bar', @cache.fetch('foo') { 'baz' }
+  end
+
+  def test_fetch_with_cache_miss
+    assert_equal 'baz', @cache.fetch('foo') { 'baz' }
+  end
+
+  def test_fetch_with_forced_cache_miss
+    @cache.fetch('foo', :force => true) { 'bar' }
+  end
+
+  def test_increment
+    @cache.write('foo', 1, :raw => true)
+    assert_equal 1, @cache.read('foo', :raw => true).to_i
+    assert_equal 2, @cache.increment('foo')
+    assert_equal 2, @cache.read('foo', :raw => true).to_i
+    assert_equal 3, @cache.increment('foo')
+    assert_equal 3, @cache.read('foo', :raw => true).to_i
+  end
+
+  def test_decrement
+    @cache.write('foo', 3, :raw => true)
+    assert_equal 3, @cache.read('foo', :raw => true).to_i
+    assert_equal 2, @cache.decrement('foo')
+    assert_equal 2, @cache.read('foo', :raw => true).to_i
+    assert_equal 1, @cache.decrement('foo')
+    assert_equal 1, @cache.read('foo', :raw => true).to_i
+  end
+end
+
+class FileStoreTest < Test::Unit::TestCase
+  def setup
+    @cache = ActiveSupport::Cache.lookup_store(:file_store, Dir.pwd)
+  end
+
+  def teardown
+    File.delete("foo.cache")
+  end
+
+  include CacheStoreBehavior
+end
+
+class MemoryStoreTest < Test::Unit::TestCase
+  def setup
+    @cache = ActiveSupport::Cache.lookup_store(:memory_store)
+  end
+
+  include CacheStoreBehavior
+
+  def test_store_objects_should_be_immutable
+    @cache.write('foo', 'bar')
+    assert_raise(ActiveSupport::FrozenObjectError) { @cache.read('foo').gsub!(/.*/, 'baz') }
+    assert_equal 'bar', @cache.read('foo')
+  end
+end
+
+uses_memcached 'memcached backed store' do
+  class MemCacheStoreTest < Test::Unit::TestCase
+    def setup
+      @cache = ActiveSupport::Cache.lookup_store(:mem_cache_store)
+      @cache.clear
+    end
+
+    include CacheStoreBehavior
+
+    def test_store_objects_should_be_immutable
+      @cache.write('foo', 'bar')
+      @cache.read('foo').gsub!(/.*/, 'baz')
+      assert_equal 'bar', @cache.read('foo')
+    end
+  end
+
+  class CompressedMemCacheStore < Test::Unit::TestCase
+    def setup
+      @cache = ActiveSupport::Cache.lookup_store(:compressed_mem_cache_store)
+      @cache.clear
+    end
+
+    include CacheStoreBehavior
+  end
+end