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#
# 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,
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import pytest

from nemo.export.utils._mock_import import _mock_import


def test_mock_import_existing_module():
    """Test mocking an existing module."""
    import math as math_org

    with _mock_import("math"):
        import math

        assert math is math_org


def test_mock_import_non_existing_module():
    """Test mocking a non-existing module."""
    with _mock_import("non.existing.module"):
        import non.existing.module

    with pytest.raises(ModuleNotFoundError):
        import non.existing.module