gecko-dev/netwerk/test/unit/test_cache2-10-evict-direct.js

function run_test()
{
  do_get_profile();

  asyncOpenCacheEntry("http://b/", "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
    new OpenCallback(NEW, "b1m", "b1d", function(entry) {
      asyncOpenCacheEntry("http://b/", "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
        new OpenCallback(NORMAL, "b1m", "b1d", function(entry) {
          entry.asyncDoom(
            new EvictionCallback(true, function() {
              finish_cache2_test();
            })
          );
        })
      );
    })
  );

  do_test_pending();
}