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# Copyright(c) Open Law Library. All rights reserved.                      #
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# Licensed under the Apache License, Version 2.0 (the "License")           #
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#     http: // www.apache.org/licenses/LICENSE-2.0                         #
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from typing import Optional, Union

from lsprotocol.types import (
    TEXT_DOCUMENT_SEMANTIC_TOKENS_RANGE,
)
from lsprotocol.types import (
    SemanticTokens,
    SemanticTokensParams,
    SemanticTokensPartialResult,
)

from ...conftest import ClientServer


class ConfiguredLS(ClientServer):
    def __init__(self):
        super().__init__()

        @self.server.feature(TEXT_DOCUMENT_SEMANTIC_TOKENS_RANGE)
        def f(
            params: SemanticTokensParams,
        ) -> Union[SemanticTokensPartialResult, Optional[SemanticTokens]]:
            return SemanticTokens(data=[0, 0, 3, 0, 0])


@ConfiguredLS.decorate()
def test_capabilities(client_server):
    _, server = client_server
    capabilities = server.server_capabilities

    assert capabilities.semantic_tokens_provider is None