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import unittest.mock as mock
import warnings

import pytest

import opensearch_py_ml
from opensearch_py_ml.common import os_version


@pytest.mark.parametrize(
    ["version_number", "version_tuple"],
    [("7.10.0-alpha1", (7, 10, 0)), ("99.99.99", (99, 99, 99))],
)
def test_major_version_mismatch(version_number, version_tuple):
    client = mock.Mock(spec=["info"])
    client.info.return_value = {"version": {"number": version_number}}
    with warnings.catch_warnings(record=True) as w:
        assert os_version(client) == version_tuple
    assert len(w) == 1
    assert str(w[0].message) == (
        f"OpenSearch major version ({opensearch_py_ml.__version__}) doesn't match the major version of the OpenSearch server ({version_number}) "
        "which can lead to compatibility issues. Your major version should be the same as your cluster major version."
    )