1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
# 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, DummyIndentedBlock
from libcst.metadata import CodeRange
from libcst.testing.utils import data_provider
class WhileTest(CSTNodeTest):
@data_provider(
(
# Simple while block
{
"node": cst.While(
cst.Call(cst.Name("iter")), cst.SimpleStatementSuite((cst.Pass(),))
),
"code": "while iter(): pass\n",
"parser": parse_statement,
},
# While block with else
{
"node": cst.While(
cst.Call(cst.Name("iter")),
cst.SimpleStatementSuite((cst.Pass(),)),
cst.Else(cst.SimpleStatementSuite((cst.Pass(),))),
),
"code": "while iter(): pass\nelse: pass\n",
"parser": parse_statement,
},
# indentation
{
"node": DummyIndentedBlock(
" ",
cst.While(
cst.Call(cst.Name("iter")),
cst.SimpleStatementSuite((cst.Pass(),)),
),
),
"code": " while iter(): pass\n",
"parser": None,
"expected_position": CodeRange((1, 4), (1, 22)),
},
# while an indented body
{
"node": DummyIndentedBlock(
" ",
cst.While(
cst.Call(cst.Name("iter")),
cst.IndentedBlock((cst.SimpleStatementLine((cst.Pass(),)),)),
),
),
"code": " while iter():\n pass\n",
"parser": None,
"expected_position": CodeRange((1, 4), (2, 12)),
},
# leading_lines
{
"node": cst.While(
cst.Call(cst.Name("iter")),
cst.IndentedBlock((cst.SimpleStatementLine((cst.Pass(),)),)),
leading_lines=(
cst.EmptyLine(comment=cst.Comment("# leading comment")),
),
),
"code": "# leading comment\nwhile iter():\n pass\n",
"parser": parse_statement,
"expected_position": CodeRange((2, 0), (3, 8)),
},
{
"node": cst.While(
cst.Call(cst.Name("iter")),
cst.IndentedBlock((cst.SimpleStatementLine((cst.Pass(),)),)),
cst.Else(
cst.IndentedBlock((cst.SimpleStatementLine((cst.Pass(),)),)),
leading_lines=(
cst.EmptyLine(comment=cst.Comment("# else comment")),
),
),
leading_lines=(
cst.EmptyLine(comment=cst.Comment("# leading comment")),
),
),
"code": "# leading comment\nwhile iter():\n pass\n# else comment\nelse:\n pass\n",
"parser": None,
"expected_position": CodeRange((2, 0), (6, 8)),
},
# Weird spacing rules
{
"node": cst.While(
cst.Call(
cst.Name("iter"),
lpar=(cst.LeftParen(),),
rpar=(cst.RightParen(),),
),
cst.SimpleStatementSuite((cst.Pass(),)),
whitespace_after_while=cst.SimpleWhitespace(""),
),
"code": "while(iter()): pass\n",
"parser": parse_statement,
"expected_position": CodeRange((1, 0), (1, 19)),
},
# Whitespace
{
"node": cst.While(
cst.Call(cst.Name("iter")),
cst.SimpleStatementSuite((cst.Pass(),)),
whitespace_after_while=cst.SimpleWhitespace(" "),
whitespace_before_colon=cst.SimpleWhitespace(" "),
),
"code": "while iter() : pass\n",
"parser": parse_statement,
"expected_position": CodeRange((1, 0), (1, 21)),
},
)
)
def test_valid(self, **kwargs: Any) -> None:
self.validate_node(**kwargs)
@data_provider(
(
{
"get_node": lambda: cst.While(
cst.Call(cst.Name("iter")),
cst.SimpleStatementSuite((cst.Pass(),)),
whitespace_after_while=cst.SimpleWhitespace(""),
),
"expected_re": "Must have at least one space after 'while' keyword",
},
)
)
def test_invalid(self, **kwargs: Any) -> None:
self.assert_invalid(**kwargs)
|
