# SPDX-License-Identifier: Apache-2.0
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# this file be licensed under the Apache-2.0 license or a
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# File called _pytest for PyCharm compatibility

from opensearch_py_ml.utils import is_valid_attr_name


class TestUtils:
    def test_is_valid_attr_name(self):
        assert is_valid_attr_name("_piZZa")
        assert is_valid_attr_name("nice_pizza_with_2_mushrooms")
        assert is_valid_attr_name("_2_pizze")
        assert is_valid_attr_name("_")
        assert is_valid_attr_name("___")

        assert not is_valid_attr_name("4")
        assert not is_valid_attr_name(4)
        assert not is_valid_attr_name(None)
        assert not is_valid_attr_name("4pizze")
        assert not is_valid_attr_name("pizza+")