def test_cross_validation(self):
cfg = Config()
axi = xapian.Database(cfg.axi)
packages = ["gimp","aaphoto","eog","emacs","dia","ferret",
"festival","file","inkscape","xpdf"]
path = "test_data/.sample_axi"
sample_axi = SampleAptXapianIndex(packages,axi,path)
rec = Recommender(cfg)
rec.items_repository = sample_axi
user = User({"gimp":1,"aaphoto":1,"eog":1,"emacs":1})
metrics = []
metrics.append(Precision())
metrics.append(Recall())
metrics.append(F1())
validation = CrossValidation(0.3,5,rec,metrics,0.5)
validation.run(user)
print validation
