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# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from typing import Callable
import libcst as cst
from libcst._nodes.tests.base import CSTNodeTest
from libcst.testing.utils import data_provider
class NewlineTest(CSTNodeTest):
@data_provider(
(
(cst.Newline("\r\n"), "\r\n"),
(cst.Newline("\r"), "\r"),
(cst.Newline("\n"), "\n"),
)
)
def test_valid(self, node: cst.CSTNode, code: str) -> None:
self.validate_node(node, code)
@data_provider(
(
(lambda: cst.Newline("bad input"), "invalid value"),
(lambda: cst.Newline("\nbad input\n"), "invalid value"),
(lambda: cst.Newline("\n\n"), "invalid value"),
)
)
def test_invalid(
self, get_node: Callable[[], cst.CSTNode], expected_re: str
) -> None:
self.assert_invalid(get_node, expected_re)
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