11using System ;
22using System . Collections . Generic ;
3+
34using NUnit . Framework ;
5+
46using Python . Runtime ;
57using Python . Runtime . Codecs ;
68
@@ -24,17 +26,6 @@ public void Dispose()
2426[ Test ]
2527public void TestReadme ( )
2628{
27- dynamic np ;
28- try
29- {
30- np = Py . Import ( "numpy" ) ;
31- }
32- catch ( PythonException )
33- {
34- Assert . Inconclusive ( "Numpy or dependency not installed" ) ;
35- return ;
36- }
37-
3829Assert . AreEqual ( "1.0" , np . cos ( np . pi * 2 ) . ToString ( ) ) ;
3930
4031dynamic sin = np . sin ;
@@ -55,40 +46,52 @@ public void TestReadme()
5546[ Test ]
5647public void MultidimensionalNumPyArray ( )
5748{
58- PyObject np ;
59- try {
60- np = Py . Import ( "numpy" ) ;
61- } catch ( PythonException ) {
62- Assert . Inconclusive ( "Numpy or dependency not installed" ) ;
63- return ;
64- }
65-
6649var array = new [ , ] { { 1 , 2 } , { 3 , 4 } } ;
6750var ndarray = np . InvokeMethod ( "asarray" , array . ToPython ( ) ) ;
68- Assert . AreEqual ( ( 2 , 2 ) , ndarray . GetAttr ( "shape" ) . As < ( int , int ) > ( ) ) ;
51+ Assert . AreEqual ( ( 2 , 2 ) , ndarray . GetAttr ( "shape" ) . As < ( int , int ) > ( ) ) ;
6952Assert . AreEqual ( 1 , ndarray [ ( 0 , 0 ) . ToPython ( ) ] . InvokeMethod ( "__int__" ) . As < int > ( ) ) ;
7053Assert . AreEqual ( array [ 1 , 0 ] , ndarray [ ( 1 , 0 ) . ToPython ( ) ] . InvokeMethod ( "__int__" ) . As < int > ( ) ) ;
7154}
7255
7356[ Test ]
7457public void Int64Array ( )
7558{
76- PyObject np ;
77- try
78- {
79- np = Py . Import ( "numpy" ) ;
80- }
81- catch ( PythonException )
82- {
83- Assert . Inconclusive ( "Numpy or dependency not installed" ) ;
84- return ;
85- }
86-
8759var array = new long [ , ] { { 1 , 2 } , { 3 , 4 } } ;
8860var ndarray = np . InvokeMethod ( "asarray" , array . ToPython ( ) ) ;
8961Assert . AreEqual ( ( 2 , 2 ) , ndarray . GetAttr ( "shape" ) . As < ( int , int ) > ( ) ) ;
9062Assert . AreEqual ( 1 , ndarray [ ( 0 , 0 ) . ToPython ( ) ] . InvokeMethod ( "__int__" ) . As < long > ( ) ) ;
9163Assert . AreEqual ( array [ 1 , 0 ] , ndarray [ ( 1 , 0 ) . ToPython ( ) ] . InvokeMethod ( "__int__" ) . As < long > ( ) ) ;
9264}
65+
66+ [ Test ]
67+ public void VarArg ( )
68+ {
69+ dynamic zX = np . array ( new [ , ] { { 1 , 2 , 3 } , { 4 , 5 , 6 } , { 8 , 9 , 0 } } ) ;
70+ dynamic grad = np . gradient ( zX , 4.0 , 5.0 ) ;
71+ dynamic grad2 = np . InvokeMethod ( "gradient" , new PyObject [ ] { zX , new PyFloat ( 4.0 ) , new PyFloat ( 5.0 ) } ) ;
72+
73+ Assert . AreEqual ( 4.125 , grad [ 0 ] . sum ( ) . __float__ ( ) . As < double > ( ) , 0.001 ) ;
74+ Assert . AreEqual ( - 1.2 , grad [ 1 ] . sum ( ) . __float__ ( ) . As < double > ( ) , 0.001 ) ;
75+ Assert . AreEqual ( 4.125 , grad2 [ 0 ] . sum ( ) . __float__ ( ) . As < double > ( ) , 0.001 ) ;
76+ Assert . AreEqual ( - 1.2 , grad2 [ 1 ] . sum ( ) . __float__ ( ) . As < double > ( ) , 0.001 ) ;
77+ }
78+
79+ #pragma warning disableIDE1006
80+ dynamic np
81+ {
82+ get
83+ {
84+ try
85+ {
86+ return Py . Import ( "numpy" ) ;
87+ }
88+ catch ( PythonException )
89+ {
90+ Assert . Inconclusive ( "Numpy or dependency not installed" ) ;
91+ return null ;
92+ }
93+ }
94+ }
95+
9396}
9497}