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9066219f
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9066219f
编写于
1月 05, 2018
作者:
M
Manish Goregaokar
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差异文件
Regression tests for #47175
上级
ff55725a
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1
隐藏空白更改
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1 changed file
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src/libcore/tests/pattern.rs
src/libcore/tests/pattern.rs
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src/libcore/tests/pattern.rs
浏览文件 @
9066219f
...
...
@@ -262,3 +262,41 @@ fn test_reverse_search_shared_bytes() {
[
InRange
(
37
,
40
),
Rejects
(
34
,
37
),
InRange
(
10
,
13
),
Rejects
(
8
,
10
),
Done
]
);
}
#[test]
fn
double_ended_regression_test
()
{
// https://github.com/rust-lang/rust/issues/47175
// Ensures that double ended searching comes to a convergence
search_asserts!
(
"abcdeabcdeabcde"
,
'a'
,
"alternating double ended search"
,
[
next_match
,
next_match_back
,
next_match
,
next_match_back
],
[
InRange
(
0
,
1
),
InRange
(
10
,
11
),
InRange
(
5
,
6
),
Done
]
);
search_asserts!
(
"abcdeabcdeabcde"
,
'a'
,
"triple double ended search for a"
,
[
next_match
,
next_match_back
,
next_match_back
,
next_match_back
],
[
InRange
(
0
,
1
),
InRange
(
10
,
11
),
InRange
(
5
,
6
),
Done
]
);
search_asserts!
(
"abcdeabcdeabcde"
,
'd'
,
"triple double ended search for d"
,
[
next_match
,
next_match_back
,
next_match_back
,
next_match_back
],
[
InRange
(
3
,
4
),
InRange
(
13
,
14
),
InRange
(
8
,
9
),
Done
]
);
search_asserts!
(
STRESS
,
'Á'
,
"Double ended search for two-byte Latin character"
,
[
next_match
,
next_match_back
,
next_match
,
next_match_back
],
[
InRange
(
0
,
2
),
InRange
(
32
,
34
),
InRange
(
8
,
10
),
Done
]
);
search_asserts!
(
STRESS
,
'각'
,
"Reverse double ended search for three-byte Hangul character"
,
[
next_match_back
,
next_back
,
next_match
,
next
,
next_match_back
,
next_match
],
[
InRange
(
34
,
37
),
Rejects
(
32
,
34
),
InRange
(
19
,
22
),
Rejects
(
22
,
25
),
InRange
(
28
,
31
),
Done
]
);
search_asserts!
(
STRESS
,
'ก'
,
"Double ended search for three-byte Thai character"
,
[
next_match
,
next_back
,
next
,
next_match_back
,
next_match
],
[
InRange
(
22
,
25
),
Rejects
(
47
,
48
),
Rejects
(
25
,
28
),
InRange
(
40
,
43
),
Done
]
);
search_asserts!
(
STRESS
,
'😁'
,
"Double ended search for four-byte emoji"
,
[
next_match_back
,
next
,
next_match
,
next_back
,
next_match
],
[
InRange
(
43
,
47
),
Rejects
(
0
,
2
),
InRange
(
15
,
19
),
Rejects
(
40
,
43
),
Done
]
);
search_asserts!
(
STRESS
,
'ꁁ'
,
"Double ended search for three-byte Yi character with repeated bytes"
,
[
next_match
,
next
,
next_match_back
,
next_back
,
next_match
],
[
InRange
(
10
,
13
),
Rejects
(
13
,
14
),
InRange
(
37
,
40
),
Rejects
(
34
,
37
),
Done
]
);
}
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