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using
System
;
using
System
.
Collections
.
Generic
;
using
NUnit
.
Framework
;
using
Python
.
Runtime
;
using
Python
.
Runtime
.
Codecs
;
namespace
Python
.
EmbeddingTest
{
public
class
NumPyTests
{
[
OneTimeSetUp
]
public
void
SetUp
(
)
{
PythonEngine
.
Initialize
(
)
;
TupleCodec
<
ValueTuple
>
.
Register
(
)
;
}
[
OneTimeTearDown
]
public
void
Dispose
(
)
{
PythonEngine
.
Shutdown
(
)
;
}
[
Test
]
public
void
TestReadme
(
)
{
dynamic
np
;
try
{
np
=
Py
.
Import
(
"numpy"
)
;
}
catch
(
PythonException
)
{
Assert
.
Inconclusive
(
"Numpy or dependency not installed"
)
;
return
;
}
Assert
.
AreEqual
(
"1.0"
,
np
.
cos
(
np
.
pi
*
2
)
.
ToString
(
)
)
;
dynamic
sin
=
np
.
sin
;
StringAssert
.
StartsWith
(
"-0.95892"
,
sin
(
5
)
.
ToString
(
)
)
;
double
c
=
(
double
)
(
np
.
cos
(
5
)
+
sin
(
5
)
)
;
Assert
.
AreEqual
(
-
0.675262
,
c
,
0.01
)
;
dynamic
a
=
np
.
array
(
new
List
<
float
>
{
1
,
2
,
3
}
)
;
Assert
.
AreEqual
(
"float64"
,
a
.
dtype
.
ToString
(
)
)
;
dynamic
b
=
np
.
array
(
new
List
<
float
>
{
6
,
5
,
4
}
,
Py
.
kw
(
"dtype"
,
np
.
int32
)
)
;
Assert
.
AreEqual
(
"int32"
,
b
.
dtype
.
ToString
(
)
)
;
Assert
.
AreEqual
(
"[ 6. 10. 12.]"
,
(
a
*
b
)
.
ToString
(
)
.
Replace
(
" "
,
" "
)
)
;
}
[
Test
]
public
void
MultidimensionalNumPyArray
(
)
{
PyObject
np
;
try
{
np
=
Py
.
Import
(
"numpy"
)
;
}
catch
(
PythonException
)
{
Assert
.
Inconclusive
(
"Numpy or dependency not installed"
)
;
return
;
}
var
array
=
new
[
,
]
{
{
1
,
2
}
,
{
3
,
4
}
}
;
var
ndarray
=
np
.
InvokeMethod
(
"asarray"
,
array
.
ToPython
(
)
)
;
Assert
.
AreEqual
(
(
2
,
2
)
,
ndarray
.
GetAttr
(
"shape"
)
.
As
<
(
int
,
int
)
>
(
)
)
;
Assert
.
AreEqual
(
1
,
ndarray
[
(
0
,
0
)
.
ToPython
(
)
]
.
InvokeMethod
(
"__int__"
)
.
As
<
int
>
(
)
)
;
Assert
.
AreEqual
(
array
[
1
,
0
]
,
ndarray
[
(
1
,
0
)
.
ToPython
(
)
]
.
InvokeMethod
(
"__int__"
)
.
As
<
int
>
(
)
)
;
}
[
Test
]
public
void
Int64Array
(
)
{
PyObject
np
;
try
{
np
=
Py
.
Import
(
"numpy"
)
;
}
catch
(
PythonException
)
{
Assert
.
Inconclusive
(
"Numpy or dependency not installed"
)
;
return
;
}
var
array
=
new
long
[
,
]
{
{
1
,
2
}
,
{
3
,
4
}
}
;
var
ndarray
=
np
.
InvokeMethod
(
"asarray"
,
array
.
ToPython
(
)
)
;
Assert
.
AreEqual
(
(
2
,
2
)
,
ndarray
.
GetAttr
(
"shape"
)
.
As
<
(
int
,
int
)
>
(
)
)
;
Assert
.
AreEqual
(
1
,
ndarray
[
(
0
,
0
)
.
ToPython
(
)
]
.
InvokeMethod
(
"__int__"
)
.
As
<
long
>
(
)
)
;
Assert
.
AreEqual
(
array
[
1
,
0
]
,
ndarray
[
(
1
,
0
)
.
ToPython
(
)
]
.
InvokeMethod
(
"__int__"
)
.
As
<
long
>
(
)
)
;
}
}
}
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