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pythonnet/src/embed_tests/TestPyBuffer.cs at fix-enum-codec · Nik527/pythonnet · GitHub
Nik527
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pythonnet
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TestPyBuffer.cs
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using
System
;
using
System
.
Text
;
using
NUnit
.
Framework
;
using
Python
.
Runtime
;
using
Python
.
Runtime
.
Codecs
;
namespace
Python
.
EmbeddingTest
{
class
TestPyBuffer
{
[
OneTimeSetUp
]
public
void
SetUp
(
)
{
PythonEngine
.
Initialize
(
)
;
TupleCodec
<
ValueTuple
>
.
Register
(
)
;
}
[
OneTimeTearDown
]
public
void
Dispose
(
)
{
PythonEngine
.
Shutdown
(
)
;
}
[
Test
]
public
void
TestBufferWrite
(
)
{
string
bufferTestString
=
"hello world! !$%&/()=?"
;
using
(
Py
.
GIL
(
)
)
{
using
(
var
scope
=
Py
.
CreateScope
(
)
)
{
scope
.
Exec
(
$
"arr = bytearray(
{
bufferTestString
.
Length
}
)"
)
;
PyObject
pythonArray
=
scope
.
Get
(
"arr"
)
;
byte
[
]
managedArray
=
new
UTF8Encoding
(
)
.
GetBytes
(
bufferTestString
)
;
using
(
PyBuffer
buf
=
pythonArray
.
GetBuffer
(
)
)
{
buf
.
Write
(
managedArray
,
0
,
managedArray
.
Length
)
;
}
string
result
=
scope
.
Eval
(
"arr.decode('utf-8')"
)
.
ToString
(
)
;
Assert
.
IsTrue
(
result
==
bufferTestString
)
;
}
}
}
[
Test
]
public
void
TestBufferRead
(
)
{
string
bufferTestString
=
"hello world! !$%&/()=?"
;
using
(
Py
.
GIL
(
)
)
{
using
(
var
scope
=
Py
.
CreateScope
(
)
)
{
scope
.
Exec
(
$
"arr = b'
{
bufferTestString
}
'"
)
;
PyObject
pythonArray
=
scope
.
Get
(
"arr"
)
;
byte
[
]
managedArray
=
new
byte
[
bufferTestString
.
Length
]
;
using
(
PyBuffer
buf
=
pythonArray
.
GetBuffer
(
)
)
{
buf
.
Read
(
managedArray
,
0
,
managedArray
.
Length
)
;
}
string
result
=
new
UTF8Encoding
(
)
.
GetString
(
managedArray
)
;
Assert
.
IsTrue
(
result
==
bufferTestString
)
;
}
}
}
[
Test
]
public
void
ArrayHasBuffer
(
)
{
var
array
=
new
[
,
]
{
{
1
,
2
}
,
{
3
,
4
}
}
;
var
memoryView
=
PythonEngine
.
Eval
(
"memoryview"
)
;
var
mem
=
memoryView
.
Invoke
(
array
.
ToPython
(
)
)
;
Assert
.
AreEqual
(
1
,
mem
[
(
0
,
0
)
.
ToPython
(
)
]
.
As
<
int
>
(
)
)
;
Assert
.
AreEqual
(
array
[
1
,
0
]
,
mem
[
(
1
,
0
)
.
ToPython
(
)
]
.
As
<
int
>
(
)
)
;
}
}
}
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