asset.checkin("");
RuleAsset ass = new RuleAsset();
ch.retrieveAssetContent(ass, pkg, asset);
assertTrue(ass.content instanceof FactModels);
FactModels fm = (FactModels) ass.content;
assertEquals(1, fm.models.size());
FactMetaModel mm = (FactMetaModel) fm.models.get(0);
assertEquals(1, mm.fields.size());
assertEquals("Foo", mm.name);