xgboost/tests/python/test_model_compatibility.py
Jiaming Yuan 7f542d2198
Test model compatibility. (#5248)
* Add model compability tests.

* Typo.
2020-01-31 02:46:13 -08:00

48 lines
1.7 KiB
Python

import xgboost
import os
import generate_models as gm
def test_model_compability():
path = os.path.dirname(os.path.abspath(__file__))
path = os.path.join(path, 'models')
models = [
os.path.join(root, f) for root, subdir, files in os.walk(path)
for f in files
if f != 'version'
]
assert len(models) == 12
for path in models:
name = os.path.basename(path)
if name.startswith('xgboost-'):
booster = xgboost.Booster(model_file=path)
if name.find('cls') != -1:
assert (len(booster.get_dump()) ==
gm.kForests * gm.kRounds * gm.kClasses)
else:
assert len(booster.get_dump()) == gm.kForests * gm.kRounds
elif name.startswith('xgboost_scikit'):
if name.find('reg') != -1:
reg = xgboost.XGBRegressor()
reg.load_model(path)
assert (len(reg.get_booster().get_dump()) ==
gm.kRounds * gm.kForests)
elif name.find('cls') != -1:
cls = xgboost.XGBClassifier()
cls.load_model(path)
assert len(cls.classes_) == gm.kClasses
assert len(cls._le.classes_) == gm.kClasses
assert cls.n_classes_ == gm.kClasses
assert (len(cls.get_booster().get_dump()) ==
gm.kRounds * gm.kForests * gm.kClasses), path
elif name.find('ltr') != -1:
ltr = xgboost.XGBRanker()
ltr.load_model(path)
assert (len(ltr.get_booster().get_dump()) ==
gm.kRounds * gm.kForests)
else:
assert False
else:
assert False