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体验新版 GitCode,发现更多精彩内容 >>
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ece709f1
编写于
8月 21, 2013
作者:
J
Jeff Olson
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差异文件
std: more seek tests
上级
320ccbeb
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
71 addition
and
1 deletion
+71
-1
src/libstd/rt/io/file.rs
src/libstd/rt/io/file.rs
+71
-1
未找到文件。
src/libstd/rt/io/file.rs
浏览文件 @
ece709f1
...
...
@@ -11,7 +11,7 @@
use
prelude
::
*
;
use
super
::
support
::
PathLike
;
use
super
::{
Reader
,
Writer
,
Seek
};
use
super
::{
SeekSet
,
SeekStyle
};
use
super
::{
SeekSet
,
Seek
Cur
,
SeekEnd
,
Seek
Style
};
use
rt
::
rtio
::{
RtioFileStream
,
IoFactory
,
IoFactoryObject
};
use
rt
::
io
::{
io_error
,
read_error
,
EndOfFile
};
use
rt
::
local
::
Local
;
...
...
@@ -314,3 +314,73 @@ fn file_test_io_seeking_impl() {
fn
file_test_io_seek_and_tell_smoke_test
()
{
file_test_io_seeking_impl
();
}
fn
file_test_io_seek_and_write_impl
()
{
use
io
;
do
run_in_newsched_task
{
use
str
;
let
initial_msg
=
"food-is-yummy"
;
let
overwrite_msg
=
"-the-bar!!"
;
let
final_msg
=
"foo-the-bar!!"
;
let
seek_idx
=
3
;
let
mut
read_mem
=
[
0
,
..
13
];
let
filename
=
&
Path
(
"./rt_io_file_test_seek_and_write.txt"
);
{
let
mut
rw_stream
=
FileStream
::
open
(
filename
,
Create
,
ReadWrite
)
.unwrap
();
rw_stream
.write
(
initial_msg
.as_bytes
());
rw_stream
.seek
(
seek_idx
as
i64
,
SeekSet
);
rw_stream
.write
(
overwrite_msg
.as_bytes
());
}
{
let
mut
read_stream
=
FileStream
::
open
(
filename
,
Open
,
Read
)
.unwrap
();
read_stream
.read
(
read_mem
);
}
FileStream
::
unlink
(
filename
);
let
read_str
=
str
::
from_bytes
(
read_mem
);
io
::
println
(
fmt!
(
"read_str: '%?' final_msg: '%?'"
,
read_str
,
final_msg
));
assert
!
(
read_str
==
final_msg
.to_owned
());
}
}
#[test]
fn
file_test_io_seek_and_write
()
{
file_test_io_seek_and_write_impl
();
}
fn
file_test_io_seek_shakedown_impl
()
{
do
run_in_newsched_task
{
use
str
;
// 01234567890123
let
initial_msg
=
"qwer-asdf-zxcv"
;
let
chunk_one
=
"qwer"
;
let
chunk_two
=
"asdf"
;
let
chunk_three
=
"zxcv"
;
let
mut
read_mem
=
[
0
,
..
4
];
let
filename
=
&
Path
(
"./rt_io_file_test_seek_shakedown.txt"
);
{
let
mut
rw_stream
=
FileStream
::
open
(
filename
,
Create
,
ReadWrite
)
.unwrap
();
rw_stream
.write
(
initial_msg
.as_bytes
());
}
{
let
mut
read_stream
=
FileStream
::
open
(
filename
,
Open
,
Read
)
.unwrap
();
read_stream
.seek
(
-
4
,
SeekEnd
);
read_stream
.read
(
read_mem
);
let
read_str
=
str
::
from_bytes
(
read_mem
);
assert
!
(
read_str
==
chunk_three
.to_owned
());
read_stream
.seek
(
-
9
,
SeekCur
);
read_stream
.read
(
read_mem
);
let
read_str
=
str
::
from_bytes
(
read_mem
);
assert
!
(
read_str
==
chunk_two
.to_owned
());
read_stream
.seek
(
0
,
SeekSet
);
read_stream
.read
(
read_mem
);
let
read_str
=
str
::
from_bytes
(
read_mem
);
assert
!
(
read_str
==
chunk_one
.to_owned
());
}
FileStream
::
unlink
(
filename
);
}
}
#[test]
fn
file_test_io_seek_shakedown
()
{
file_test_io_seek_shakedown_impl
();
}
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