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# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved
import logging
import unittest

from detectron2 import model_zoo
from detectron2.modeling import FPN, GeneralizedRCNN

logger = logging.getLogger(__name__)


class TestModelZoo(unittest.TestCase):
    def test_get_returns_model(self):
        model = model_zoo.get("Misc/scratch_mask_rcnn_R_50_FPN_3x_gn.yaml", trained=False)
        self.assertIsInstance(model, GeneralizedRCNN)
        self.assertIsInstance(model.backbone, FPN)

    def test_get_invalid_model(self):
        self.assertRaises(RuntimeError, model_zoo.get, "Invalid/config.yaml")

    def test_get_url(self):
        url = model_zoo.get_checkpoint_url("Misc/scratch_mask_rcnn_R_50_FPN_3x_gn.yaml")
        self.assertEqual(
            url,
            "https://dl.fbaipublicfiles.com/detectron2/Misc/scratch_mask_rcnn_R_50_FPN_3x_gn/138602908/model_final_01ca85.pkl",  # noqa
        )


if __name__ == "__main__":
    unittest.main()