protected internal virtual void CreateRules()
{
TestDirectory = TestDirectory.testDirectory();
EphemeralFileSystemRule ephemeralFileSystemRule = new EphemeralFileSystemRule();
FileSystemRule = ephemeralFileSystemRule;
PageCacheRule = new PageCacheRule();
Rules = RuleChain.outerRule(ephemeralFileSystemRule).around(TestDirectory).around(PageCacheRule);
}