def import_to_node_single(imp: SortableImport,
module: cst.Module) -> cst.BaseStatement:
leading_lines = [
cst.EmptyLine(indent=True, comment=cst.Comment(line))
if line.startswith("#") else cst.EmptyLine(indent=False)
for line in imp.comments.before
]
trailing_whitespace = cst.TrailingWhitespace()
trailing_comments = list(imp.comments.first_inline)
names: List[cst.ImportAlias] = []
for item in imp.items:
name = name_to_node(item.name)
asname = cst.AsName(
name=cst.Name(item.asname)) if item.asname else None
node = cst.ImportAlias(name=name, asname=asname)
names.append(node)
trailing_comments += item.comments.before
trailing_comments += item.comments.inline
trailing_comments += item.comments.following
trailing_comments += imp.comments.final
trailing_comments += imp.comments.last_inline
if trailing_comments:
text = COMMENT_INDENT.join(trailing_comments)
trailing_whitespace = cst.TrailingWhitespace(
whitespace=cst.SimpleWhitespace(COMMENT_INDENT),
comment=cst.Comment(text))
if imp.stem:
stem, ndots = split_relative(imp.stem)
if not stem:
module_name = None
else:
module_name = name_to_node(stem)
relative = (cst.Dot(), ) * ndots
line = cst.SimpleStatementLine(
body=[
cst.ImportFrom(module=module_name,
names=names,
relative=relative)
],
leading_lines=leading_lines,
trailing_whitespace=trailing_whitespace,
)
else:
line = cst.SimpleStatementLine(
body=[cst.Import(names=names)],
leading_lines=leading_lines,
trailing_whitespace=trailing_whitespace,
)
return line
def import_to_node_multi(imp: SortableImport,
module: cst.Module) -> cst.BaseStatement:
body: List[cst.BaseSmallStatement] = []
names: List[cst.ImportAlias] = []
prev: Optional[cst.ImportAlias] = None
following: List[str] = []
lpar_lines: List[cst.EmptyLine] = []
lpar_inline: cst.TrailingWhitespace = cst.TrailingWhitespace()
item_count = len(imp.items)
for idx, item in enumerate(imp.items):
name = name_to_node(item.name)
asname = cst.AsName(
name=cst.Name(item.asname)) if item.asname else None
# Leading comments actually have to be trailing comments on the previous node.
# That means putting them on the lpar node for the first item
if item.comments.before:
lines = [
cst.EmptyLine(
indent=True,
comment=cst.Comment(c),
whitespace=cst.SimpleWhitespace(module.default_indent),
) for c in item.comments.before
]
if prev is None:
lpar_lines.extend(lines)
else:
prev.comma.whitespace_after.empty_lines.extend(
lines) # type: ignore
# all items except the last needs whitespace to indent the *next* line/item
indent = idx != (len(imp.items) - 1)
first_line = cst.TrailingWhitespace()
inline = COMMENT_INDENT.join(item.comments.inline)
if inline:
first_line = cst.TrailingWhitespace(
whitespace=cst.SimpleWhitespace(COMMENT_INDENT),
comment=cst.Comment(inline),
)
if idx == item_count - 1:
following = item.comments.following + imp.comments.final
else:
following = item.comments.following
after = cst.ParenthesizedWhitespace(
indent=True,
first_line=first_line,
empty_lines=[
cst.EmptyLine(
indent=True,
comment=cst.Comment(c),
whitespace=cst.SimpleWhitespace(module.default_indent),
) for c in following
],
last_line=cst.SimpleWhitespace(
module.default_indent if indent else ""),
)
node = cst.ImportAlias(
name=name,
asname=asname,
comma=cst.Comma(whitespace_after=after),
)
names.append(node)
prev = node
# from foo import (
# bar
# )
if imp.stem:
stem, ndots = split_relative(imp.stem)
if not stem:
module_name = None
else:
module_name = name_to_node(stem)
relative = (cst.Dot(), ) * ndots
# inline comment following lparen
if imp.comments.first_inline:
inline = COMMENT_INDENT.join(imp.comments.first_inline)
lpar_inline = cst.TrailingWhitespace(
whitespace=cst.SimpleWhitespace(COMMENT_INDENT),
comment=cst.Comment(inline),
)
body = [
cst.ImportFrom(
module=module_name,
names=names,
relative=relative,
lpar=cst.LeftParen(
whitespace_after=cst.ParenthesizedWhitespace(
indent=True,
first_line=lpar_inline,
empty_lines=lpar_lines,
last_line=cst.SimpleWhitespace(module.default_indent),
), ),
rpar=cst.RightParen(),
)
]
# import foo
else:
raise ValueError("can't render basic imports on multiple lines")
# comment lines above import
leading_lines = [
cst.EmptyLine(indent=True, comment=cst.Comment(line))
if line.startswith("#") else cst.EmptyLine(indent=False)
for line in imp.comments.before
]
# inline comments following import/rparen
if imp.comments.last_inline:
inline = COMMENT_INDENT.join(imp.comments.last_inline)
trailing = cst.TrailingWhitespace(
whitespace=cst.SimpleWhitespace(COMMENT_INDENT),
comment=cst.Comment(inline))
else:
trailing = cst.TrailingWhitespace()
return cst.SimpleStatementLine(
body=body,
leading_lines=leading_lines,
trailing_whitespace=trailing,
)
class ImportFromParseTest(CSTNodeTest):
@data_provider(
(
# Simple from import statement
{
"node": cst.ImportFrom(
module=cst.Name("foo"), names=(cst.ImportAlias(cst.Name("bar")),)
),
"code": "from foo import bar",
},
# From import statement with alias
{
"node": cst.ImportFrom(
module=cst.Name("foo"),
names=(
cst.ImportAlias(
cst.Name("bar"), asname=cst.AsName(cst.Name("baz"))
),
),
),
"code": "from foo import bar as baz",
},
# Multiple imports
{
"node": cst.ImportFrom(
module=cst.Name("foo"),
names=(
cst.ImportAlias(
cst.Name("bar"),
comma=cst.Comma(whitespace_after=cst.SimpleWhitespace(" ")),
),
cst.ImportAlias(cst.Name("baz")),
),
),
"code": "from foo import bar, baz",
},
# Trailing comma
{
"node": cst.ImportFrom(
module=cst.Name("foo"),
names=(
cst.ImportAlias(
cst.Name("bar"),
comma=cst.Comma(whitespace_after=cst.SimpleWhitespace(" ")),
),
cst.ImportAlias(cst.Name("baz"), comma=cst.Comma()),
),
),
"code": "from foo import bar, baz,",
},
# Star import statement
{
"node": cst.ImportFrom(module=cst.Name("foo"), names=cst.ImportStar()),
"code": "from foo import *",
},
# Simple relative import statement
{
"node": cst.ImportFrom(
relative=(cst.Dot(),),
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
),
"code": "from .foo import bar",
},
{
"node": cst.ImportFrom(
relative=(cst.Dot(), cst.Dot()),
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
),
"code": "from ..foo import bar",
},
# Relative only import
{
"node": cst.ImportFrom(
relative=(cst.Dot(), cst.Dot()),
module=None,
names=(cst.ImportAlias(cst.Name("bar")),),
),
"code": "from .. import bar",
},
# Parenthesis
{
"node": cst.ImportFrom(
module=cst.Name("foo"),
lpar=cst.LeftParen(),
names=(
cst.ImportAlias(
cst.Name("bar"), asname=cst.AsName(cst.Name("baz"))
),
),
rpar=cst.RightParen(),
),
"code": "from foo import (bar as baz)",
},
# Verify whitespace works everywhere.
{
"node": cst.ImportFrom(
relative=(
cst.Dot(
whitespace_before=cst.SimpleWhitespace(""),
whitespace_after=cst.SimpleWhitespace(" "),
),
cst.Dot(
whitespace_before=cst.SimpleWhitespace(""),
whitespace_after=cst.SimpleWhitespace(" "),
),
),
module=cst.Name("foo"),
lpar=cst.LeftParen(whitespace_after=cst.SimpleWhitespace(" ")),
names=(
cst.ImportAlias(
cst.Name("bar"),
asname=cst.AsName(
cst.Name("baz"),
whitespace_before_as=cst.SimpleWhitespace(" "),
whitespace_after_as=cst.SimpleWhitespace(" "),
),
comma=cst.Comma(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
),
cst.ImportAlias(
cst.Name("unittest"),
asname=cst.AsName(
cst.Name("ut"),
whitespace_before_as=cst.SimpleWhitespace(" "),
whitespace_after_as=cst.SimpleWhitespace(" "),
),
),
),
rpar=cst.RightParen(whitespace_before=cst.SimpleWhitespace(" ")),
whitespace_after_from=cst.SimpleWhitespace(" "),
whitespace_before_import=cst.SimpleWhitespace(" "),
whitespace_after_import=cst.SimpleWhitespace(" "),
),
"code": "from . . foo import ( bar as baz , unittest as ut )",
},
)
)
def test_valid(self, **kwargs: Any) -> None:
self.validate_node(
parser=lambda code: ensure_type(
parse_statement(code), cst.SimpleStatementLine
).body[0],
**kwargs,
)
class ImportFromCreateTest(CSTNodeTest):
@data_provider(
(
# Simple from import statement
{
"node": cst.ImportFrom(
module=cst.Name("foo"), names=(cst.ImportAlias(cst.Name("bar")),)
),
"code": "from foo import bar",
},
# From import statement with alias
{
"node": cst.ImportFrom(
module=cst.Name("foo"),
names=(
cst.ImportAlias(
cst.Name("bar"), asname=cst.AsName(cst.Name("baz"))
),
),
),
"code": "from foo import bar as baz",
},
# Multiple imports
{
"node": cst.ImportFrom(
module=cst.Name("foo"),
names=(
cst.ImportAlias(cst.Name("bar")),
cst.ImportAlias(cst.Name("baz")),
),
),
"code": "from foo import bar, baz",
},
# Trailing comma
{
"node": cst.ImportFrom(
module=cst.Name("foo"),
names=(
cst.ImportAlias(cst.Name("bar"), comma=cst.Comma()),
cst.ImportAlias(cst.Name("baz"), comma=cst.Comma()),
),
),
"code": "from foo import bar,baz,",
"expected_position": CodeRange((1, 0), (1, 23)),
},
# Star import statement
{
"node": cst.ImportFrom(module=cst.Name("foo"), names=cst.ImportStar()),
"code": "from foo import *",
"expected_position": CodeRange((1, 0), (1, 17)),
},
# Simple relative import statement
{
"node": cst.ImportFrom(
relative=(cst.Dot(),),
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
),
"code": "from .foo import bar",
},
{
"node": cst.ImportFrom(
relative=(cst.Dot(), cst.Dot()),
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
),
"code": "from ..foo import bar",
},
# Relative only import
{
"node": cst.ImportFrom(
relative=(cst.Dot(), cst.Dot()),
module=None,
names=(cst.ImportAlias(cst.Name("bar")),),
),
"code": "from .. import bar",
},
# Parenthesis
{
"node": cst.ImportFrom(
module=cst.Name("foo"),
lpar=cst.LeftParen(),
names=(
cst.ImportAlias(
cst.Name("bar"), asname=cst.AsName(cst.Name("baz"))
),
),
rpar=cst.RightParen(),
),
"code": "from foo import (bar as baz)",
"expected_position": CodeRange((1, 0), (1, 28)),
},
# Verify whitespace works everywhere.
{
"node": cst.ImportFrom(
relative=(
cst.Dot(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
cst.Dot(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
),
module=cst.Name("foo"),
lpar=cst.LeftParen(whitespace_after=cst.SimpleWhitespace(" ")),
names=(
cst.ImportAlias(
cst.Name("bar"),
asname=cst.AsName(
cst.Name("baz"),
whitespace_before_as=cst.SimpleWhitespace(" "),
whitespace_after_as=cst.SimpleWhitespace(" "),
),
comma=cst.Comma(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
),
cst.ImportAlias(
cst.Name("unittest"),
asname=cst.AsName(
cst.Name("ut"),
whitespace_before_as=cst.SimpleWhitespace(" "),
whitespace_after_as=cst.SimpleWhitespace(" "),
),
),
),
rpar=cst.RightParen(whitespace_before=cst.SimpleWhitespace(" ")),
whitespace_after_from=cst.SimpleWhitespace(" "),
whitespace_before_import=cst.SimpleWhitespace(" "),
whitespace_after_import=cst.SimpleWhitespace(" "),
),
"code": "from . . foo import ( bar as baz , unittest as ut )",
"expected_position": CodeRange((1, 0), (1, 61)),
},
)
)
def test_valid(self, **kwargs: Any) -> None:
self.validate_node(**kwargs)
@data_provider(
(
{
"get_node": lambda: cst.ImportFrom(
module=None, names=(cst.ImportAlias(cst.Name("bar")),)
),
"expected_re": "Must have a module specified",
},
{
"get_node": lambda: cst.ImportFrom(module=cst.Name("foo"), names=()),
"expected_re": "at least one ImportAlias",
},
{
"get_node": lambda: cst.ImportFrom(
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
lpar=cst.LeftParen(),
),
"expected_re": "left paren without right paren",
},
{
"get_node": lambda: cst.ImportFrom(
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
rpar=cst.RightParen(),
),
"expected_re": "right paren without left paren",
},
{
"get_node": lambda: cst.ImportFrom(
module=cst.Name("foo"), names=cst.ImportStar(), lpar=cst.LeftParen()
),
"expected_re": "cannot have parens",
},
{
"get_node": lambda: cst.ImportFrom(
module=cst.Name("foo"),
names=cst.ImportStar(),
rpar=cst.RightParen(),
),
"expected_re": "cannot have parens",
},
{
"get_node": lambda: cst.ImportFrom(
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
whitespace_after_from=cst.SimpleWhitespace(""),
),
"expected_re": "one space after from",
},
{
"get_node": lambda: cst.ImportFrom(
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
whitespace_before_import=cst.SimpleWhitespace(""),
),
"expected_re": "one space before import",
},
{
"get_node": lambda: cst.ImportFrom(
module=cst.Name("foo"),
names=(cst.ImportAlias(cst.Name("bar")),),
whitespace_after_import=cst.SimpleWhitespace(""),
),
"expected_re": "one space after import",
},
)
)
def test_invalid(self, **kwargs: Any) -> None:
self.assert_invalid(**kwargs)
class ImportParseTest(CSTNodeTest):
@data_provider(
(
# Simple import statement
{
"node": cst.Import(names=(cst.ImportAlias(cst.Name("foo")),)),
"code": "import foo",
},
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar"))
),
)
),
"code": "import foo.bar",
},
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar"))
),
)
),
"code": "import foo.bar",
},
# Comma-separated list of imports
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar")),
comma=cst.Comma(whitespace_after=cst.SimpleWhitespace(" ")),
),
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("baz"))
),
)
),
"code": "import foo.bar, foo.baz",
},
# Import with an alias
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar")),
asname=cst.AsName(cst.Name("baz")),
),
)
),
"code": "import foo.bar as baz",
},
# Import with an alias, comma separated
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar")),
asname=cst.AsName(cst.Name("baz")),
comma=cst.Comma(whitespace_after=cst.SimpleWhitespace(" ")),
),
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("baz")),
asname=cst.AsName(cst.Name("bar")),
),
)
),
"code": "import foo.bar as baz, foo.baz as bar",
},
# Combine for fun and profit
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar")),
asname=cst.AsName(cst.Name("baz")),
comma=cst.Comma(whitespace_after=cst.SimpleWhitespace(" ")),
),
cst.ImportAlias(
cst.Attribute(cst.Name("insta"), cst.Name("gram")),
comma=cst.Comma(whitespace_after=cst.SimpleWhitespace(" ")),
),
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("baz")),
comma=cst.Comma(whitespace_after=cst.SimpleWhitespace(" ")),
),
cst.ImportAlias(
cst.Name("unittest"), asname=cst.AsName(cst.Name("ut"))
),
)
),
"code": "import foo.bar as baz, insta.gram, foo.baz, unittest as ut",
},
# Verify whitespace works everywhere.
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(
cst.Name("foo"),
cst.Name("bar"),
dot=cst.Dot(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
),
asname=cst.AsName(
cst.Name("baz"),
whitespace_before_as=cst.SimpleWhitespace(" "),
whitespace_after_as=cst.SimpleWhitespace(" "),
),
comma=cst.Comma(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
),
cst.ImportAlias(
cst.Name("unittest"),
asname=cst.AsName(
cst.Name("ut"),
whitespace_before_as=cst.SimpleWhitespace(" "),
whitespace_after_as=cst.SimpleWhitespace(" "),
),
),
),
whitespace_after_import=cst.SimpleWhitespace(" "),
),
"code": "import foo . bar as baz , unittest as ut",
},
)
)
def test_valid(self, **kwargs: Any) -> None:
self.validate_node(
parser=lambda code: ensure_type(
parse_statement(code), cst.SimpleStatementLine
).body[0],
**kwargs,
)
class ImportCreateTest(CSTNodeTest):
@data_provider(
(
# Simple import statement
{
"node": cst.Import(names=(cst.ImportAlias(cst.Name("foo")),)),
"code": "import foo",
},
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar"))
),
)
),
"code": "import foo.bar",
},
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar"))
),
)
),
"code": "import foo.bar",
},
# Comma-separated list of imports
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar"))
),
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("baz"))
),
)
),
"code": "import foo.bar, foo.baz",
"expected_position": CodeRange((1, 0), (1, 23)),
},
# Import with an alias
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar")),
asname=cst.AsName(cst.Name("baz")),
),
)
),
"code": "import foo.bar as baz",
},
# Import with an alias, comma separated
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar")),
asname=cst.AsName(cst.Name("baz")),
),
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("baz")),
asname=cst.AsName(cst.Name("bar")),
),
)
),
"code": "import foo.bar as baz, foo.baz as bar",
},
# Combine for fun and profit
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar")),
asname=cst.AsName(cst.Name("baz")),
),
cst.ImportAlias(
cst.Attribute(cst.Name("insta"), cst.Name("gram"))
),
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("baz"))
),
cst.ImportAlias(
cst.Name("unittest"), asname=cst.AsName(cst.Name("ut"))
),
)
),
"code": "import foo.bar as baz, insta.gram, foo.baz, unittest as ut",
},
# Verify whitespace works everywhere.
{
"node": cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(
cst.Name("foo"),
cst.Name("bar"),
dot=cst.Dot(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
),
asname=cst.AsName(
cst.Name("baz"),
whitespace_before_as=cst.SimpleWhitespace(" "),
whitespace_after_as=cst.SimpleWhitespace(" "),
),
comma=cst.Comma(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
),
cst.ImportAlias(
cst.Name("unittest"),
asname=cst.AsName(
cst.Name("ut"),
whitespace_before_as=cst.SimpleWhitespace(" "),
whitespace_after_as=cst.SimpleWhitespace(" "),
),
),
),
whitespace_after_import=cst.SimpleWhitespace(" "),
),
"code": "import foo . bar as baz , unittest as ut",
"expected_position": CodeRange((1, 0), (1, 46)),
},
)
)
def test_valid(self, **kwargs: Any) -> None:
self.validate_node(**kwargs)
@data_provider(
(
{
"get_node": lambda: cst.Import(names=()),
"expected_re": "at least one ImportAlias",
},
{
"get_node": lambda: cst.Import(names=(cst.ImportAlias(cst.Name("")),)),
"expected_re": "empty name identifier",
},
{
"get_node": lambda: cst.Import(
names=(
cst.ImportAlias(cst.Attribute(cst.Name(""), cst.Name("bla"))),
)
),
"expected_re": "empty name identifier",
},
{
"get_node": lambda: cst.Import(
names=(
cst.ImportAlias(cst.Attribute(cst.Name("bla"), cst.Name(""))),
)
),
"expected_re": "empty name identifier",
},
{
"get_node": lambda: cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar")),
comma=cst.Comma(),
),
)
),
"expected_re": "trailing comma",
},
{
"get_node": lambda: cst.Import(
names=(
cst.ImportAlias(
cst.Attribute(cst.Name("foo"), cst.Name("bar"))
),
),
whitespace_after_import=cst.SimpleWhitespace(""),
),
"expected_re": "at least one space",
},
)
)
def test_invalid(self, **kwargs: Any) -> None:
self.assert_invalid(**kwargs)
class AttributeTest(CSTNodeTest):
@data_provider(
(
# Simple attribute access
{
"node": cst.Attribute(cst.Name("foo"), cst.Name("bar")),
"code": "foo.bar",
"parser": parse_expression,
"expected_position": CodeRange((1, 0), (1, 7)),
},
# Parenthesized attribute access
{
"node": cst.Attribute(
lpar=(cst.LeftParen(),),
value=cst.Name("foo"),
attr=cst.Name("bar"),
rpar=(cst.RightParen(),),
),
"code": "(foo.bar)",
"parser": parse_expression,
"expected_position": CodeRange((1, 1), (1, 8)),
},
# Make sure that spacing works
{
"node": cst.Attribute(
lpar=(cst.LeftParen(whitespace_after=cst.SimpleWhitespace(" ")),),
value=cst.Name("foo"),
dot=cst.Dot(
whitespace_before=cst.SimpleWhitespace(" "),
whitespace_after=cst.SimpleWhitespace(" "),
),
attr=cst.Name("bar"),
rpar=(cst.RightParen(whitespace_before=cst.SimpleWhitespace(" ")),),
),
"code": "( foo . bar )",
"parser": parse_expression,
"expected_position": CodeRange((1, 2), (1, 11)),
},
)
)
def test_valid(self, **kwargs: Any) -> None:
self.validate_node(**kwargs)
@data_provider(
(
{
"get_node": (
lambda: cst.Attribute(
cst.Name("foo"), cst.Name("bar"), lpar=(cst.LeftParen(),)
)
),
"expected_re": "left paren without right paren",
},
{
"get_node": (
lambda: cst.Attribute(
cst.Name("foo"), cst.Name("bar"), rpar=(cst.RightParen(),)
)
),
"expected_re": "right paren without left paren",
},
)
)
def test_invalid(self, **kwargs: Any) -> None:
self.assert_invalid(**kwargs)
