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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 Any
import libcst as cst
from libcst import parse_statement
from libcst._nodes.tests.base import CSTNodeTest
from libcst.metadata import CodeRange
from libcst.testing.utils import data_provider
class ReturnCreateTest(CSTNodeTest):
@data_provider(
(
{
"node": cst.SimpleStatementLine([cst.Return()]),
"code": "return\n",
"expected_position": CodeRange((1, 0), (1, 6)),
},
{
"node": cst.SimpleStatementLine([cst.Return(cst.Name("abc"))]),
"code": "return abc\n",
"expected_position": CodeRange((1, 0), (1, 10)),
},
)
)
def test_valid(self, **kwargs: Any) -> None:
self.validate_node(**kwargs)
@data_provider(
(
{
"get_node": lambda: cst.Return(
cst.Name("abc"), whitespace_after_return=cst.SimpleWhitespace("")
),
"expected_re": "Must have at least one space after 'return'.",
},
)
)
def test_invalid(self, **kwargs: Any) -> None:
self.assert_invalid(**kwargs)
class ReturnParseTest(CSTNodeTest):
@data_provider(
(
{
"node": cst.SimpleStatementLine(
[cst.Return(whitespace_after_return=cst.SimpleWhitespace(""))]
),
"code": "return\n",
"parser": parse_statement,
},
{
"node": cst.SimpleStatementLine(
[
cst.Return(
cst.Name("abc"),
whitespace_after_return=cst.SimpleWhitespace(" "),
)
]
),
"code": "return abc\n",
"parser": parse_statement,
},
{
"node": cst.SimpleStatementLine(
[
cst.Return(
cst.Name("abc"),
whitespace_after_return=cst.SimpleWhitespace(" "),
)
]
),
"code": "return abc\n",
"parser": parse_statement,
},
{
"node": cst.SimpleStatementLine(
[
cst.Return(
cst.Name(
"abc", lpar=[cst.LeftParen()], rpar=[cst.RightParen()]
),
whitespace_after_return=cst.SimpleWhitespace(""),
)
]
),
"code": "return(abc)\n",
"parser": parse_statement,
},
{
"node": cst.SimpleStatementLine(
[
cst.Return(
cst.Name("abc"),
whitespace_after_return=cst.SimpleWhitespace(" "),
semicolon=cst.Semicolon(),
)
]
),
"code": "return abc;\n",
"parser": parse_statement,
},
)
)
def test_valid(self, **kwargs: Any) -> None:
self.validate_node(**kwargs)
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