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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, Optional
import libcst as cst
from libcst import parse_statement
from libcst._nodes.tests.base import CSTNodeTest
from libcst.testing.utils import data_provider
class IndentedBlockTest(CSTNodeTest):
@data_provider(
(
# Standard render
(
cst.IndentedBlock((cst.SimpleStatementLine((cst.Pass(),)),)),
"\n pass\n",
None,
),
# Render with empty
(cst.IndentedBlock(()), "\n pass\n", None),
# Render with empty subnodes
(cst.IndentedBlock((cst.SimpleStatementLine(()),)), "\n pass\n", None),
# Test render with custom indent
(
cst.IndentedBlock(
(cst.SimpleStatementLine((cst.Pass(),)),), indent="\t"
),
"\n\tpass\n",
None,
),
# Test comments
(
cst.IndentedBlock(
(cst.SimpleStatementLine((cst.Pass(),)),),
header=cst.TrailingWhitespace(
whitespace=cst.SimpleWhitespace(" "),
comment=cst.Comment("# header comment"),
),
),
" # header comment\n pass\n",
None,
),
(
cst.IndentedBlock(
(cst.SimpleStatementLine((cst.Pass(),)),),
footer=(cst.EmptyLine(comment=cst.Comment("# footer comment")),),
),
"\n pass\n # footer comment\n",
None,
),
(
cst.IndentedBlock(
(cst.SimpleStatementLine((cst.Pass(),)),),
footer=(
cst.EmptyLine(
whitespace=cst.SimpleWhitespace(" "),
comment=cst.Comment("# footer comment"),
),
),
),
"\n pass\n # footer comment\n",
None,
),
(
cst.IndentedBlock(
(
cst.SimpleStatementLine((cst.Continue(),)),
cst.SimpleStatementLine((cst.Pass(),)),
)
),
"\n continue\n pass\n",
None,
),
# Basic parsing test
(
cst.If(
cst.Name("conditional"),
cst.IndentedBlock((cst.SimpleStatementLine((cst.Pass(),)),)),
),
"if conditional:\n pass\n",
parse_statement,
),
# Multi-level parsing test
(
cst.If(
cst.Name("conditional"),
cst.IndentedBlock(
(
cst.SimpleStatementLine((cst.Pass(),)),
cst.If(
cst.Name("other_conditional"),
cst.IndentedBlock(
(cst.SimpleStatementLine((cst.Pass(),)),)
),
),
)
),
),
"if conditional:\n pass\n if other_conditional:\n pass\n",
parse_statement,
),
# Inconsistent indentation parsing test
(
cst.If(
cst.Name("conditional"),
cst.IndentedBlock(
(
cst.SimpleStatementLine((cst.Pass(),)),
cst.If(
cst.Name("other_conditional"),
cst.IndentedBlock(
(cst.SimpleStatementLine((cst.Pass(),)),),
indent=" ",
),
),
)
),
),
"if conditional:\n pass\n if other_conditional:\n pass\n",
parse_statement,
),
)
)
def test_valid(
self,
node: cst.CSTNode,
code: str,
parser: Optional[Callable[[str], cst.CSTNode]],
) -> None:
self.validate_node(node, code, parser)
@data_provider(
(
(
lambda: cst.IndentedBlock(
(cst.SimpleStatementLine((cst.Pass(),)),), indent=""
),
"non-zero width indent",
),
(
lambda: cst.IndentedBlock(
(cst.SimpleStatementLine((cst.Pass(),)),),
indent="this isn't valid whitespace!",
),
"only whitespace",
),
)
)
def test_invalid(
self, get_node: Callable[[], cst.CSTNode], expected_re: str
) -> None:
self.assert_invalid(get_node, expected_re)
|
