python/test/numpy/indexing.py

56 lines
1.8 KiB
Python

#!/usr/bin/env python
# Copyright Jim Bosch & Ankit Daftery 2010-2012.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
import unittest
import numpy
import indexing_ext
class TestIndexing(unittest.TestCase):
def testSingle(self):
x = numpy.arange(0,10)
for i in range(0,10):
numpy.testing.assert_equal(indexing_ext.single(x,i), i)
for i in range(-10,0):
numpy.testing.assert_equal(indexing_ext.single(x,i),10+i)
def testSlice(self):
x = numpy.arange(0,10)
sl = slice(3,8)
b = [3,4,5,6,7]
numpy.testing.assert_equal(indexing_ext.slice(x,sl), b)
def testStepSlice(self):
x = numpy.arange(0,10)
sl = slice(3,8,2)
b = [3,5,7]
numpy.testing.assert_equal(indexing_ext.slice(x,sl), b)
def testIndex(self):
x = numpy.arange(0,10)
chk = numpy.array([3,4,5,6])
numpy.testing.assert_equal(indexing_ext.indexarray(x,chk),chk)
chk = numpy.array([[0,1],[2,3]])
numpy.testing.assert_equal(indexing_ext.indexarray(x,chk),chk)
x = numpy.arange(9).reshape(3,3)
y = numpy.array([0,1])
z = numpy.array([0,2])
chk = numpy.array([0,5])
numpy.testing.assert_equal(indexing_ext.indexarray(x,y,z),chk)
x = numpy.arange(0,10)
b = x>4
chk = numpy.array([5,6,7,8,9])
numpy.testing.assert_equal(indexing_ext.indexarray(x,b),chk)
x = numpy.arange(9).reshape(3,3)
b = numpy.array([0,2])
sl = slice(0,3)
chk = numpy.array([[0,1,2],[6,7,8]])
numpy.testing.assert_equal(indexing_ext.indexslice(x,b,sl),chk)
if __name__=="__main__":
unittest.main()