# Copyright 2017 The dm_control Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or  implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============================================================================

"""Tests for the dm_control.suite loader."""

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function

# Internal dependencies.

from absl.testing import absltest

from dm_control import suite
from dm_control.rl import control


class LoaderTest(absltest.TestCase):
    def test_load_without_kwargs(self):
        env = suite.load("cartpole", "swingup")
        self.assertIsInstance(env, control.Environment)

    def test_load_with_kwargs(self):
        env = suite.load(
            "cartpole", "swingup", task_kwargs={"time_limit": 40, "random": 99}
        )
        self.assertIsInstance(env, control.Environment)


class LoaderConstantsTest(absltest.TestCase):
    def testSuiteConstants(self):
        self.assertNotEmpty(suite.BENCHMARKING)
        self.assertNotEmpty(suite.EASY)
        self.assertNotEmpty(suite.HARD)
        self.assertNotEmpty(suite.EXTRA)


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