317 lines
9.7 KiB
Python
317 lines
9.7 KiB
Python
from numpy.testing import *
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from numpy.lib import *
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from numpy.core import *
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from numpy import matrix, asmatrix
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class TestApplyAlongAxis(TestCase):
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def test_simple(self):
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a = ones((20,10),'d')
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assert_array_equal(apply_along_axis(len,0,a),len(a)*ones(shape(a)[1]))
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def test_simple101(self,level=11):
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a = ones((10,101),'d')
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assert_array_equal(apply_along_axis(len,0,a),len(a)*ones(shape(a)[1]))
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def test_3d(self):
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a = arange(27).reshape((3,3,3))
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assert_array_equal(apply_along_axis(sum,0,a),
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[[27,30,33],[36,39,42],[45,48,51]])
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class TestApplyOverAxes(TestCase):
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def test_simple(self):
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a = arange(24).reshape(2,3,4)
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aoa_a = apply_over_axes(sum, a, [0,2])
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assert_array_equal(aoa_a, array([[[60],[92],[124]]]))
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class TestArraySplit(TestCase):
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def test_integer_0_split(self):
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a = arange(10)
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try:
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res = array_split(a,0)
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assert(0) # it should have thrown a value error
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except ValueError:
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pass
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def test_integer_split(self):
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a = arange(10)
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res = array_split(a,1)
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desired = [arange(10)]
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compare_results(res,desired)
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res = array_split(a,2)
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desired = [arange(5),arange(5,10)]
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compare_results(res,desired)
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res = array_split(a,3)
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desired = [arange(4),arange(4,7),arange(7,10)]
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compare_results(res,desired)
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res = array_split(a,4)
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desired = [arange(3),arange(3,6),arange(6,8),arange(8,10)]
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compare_results(res,desired)
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res = array_split(a,5)
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desired = [arange(2),arange(2,4),arange(4,6),arange(6,8),arange(8,10)]
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compare_results(res,desired)
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res = array_split(a,6)
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desired = [arange(2),arange(2,4),arange(4,6),arange(6,8),arange(8,9),
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arange(9,10)]
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compare_results(res,desired)
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res = array_split(a,7)
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desired = [arange(2),arange(2,4),arange(4,6),arange(6,7),arange(7,8),
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arange(8,9), arange(9,10)]
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compare_results(res,desired)
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res = array_split(a,8)
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desired = [arange(2),arange(2,4),arange(4,5),arange(5,6),arange(6,7),
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arange(7,8), arange(8,9), arange(9,10)]
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compare_results(res,desired)
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res = array_split(a,9)
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desired = [arange(2),arange(2,3),arange(3,4),arange(4,5),arange(5,6),
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arange(6,7), arange(7,8), arange(8,9), arange(9,10)]
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compare_results(res,desired)
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res = array_split(a,10)
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desired = [arange(1),arange(1,2),arange(2,3),arange(3,4),
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arange(4,5),arange(5,6), arange(6,7), arange(7,8),
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arange(8,9), arange(9,10)]
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compare_results(res,desired)
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res = array_split(a,11)
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desired = [arange(1),arange(1,2),arange(2,3),arange(3,4),
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arange(4,5),arange(5,6), arange(6,7), arange(7,8),
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arange(8,9), arange(9,10),array([])]
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compare_results(res,desired)
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def test_integer_split_2D_rows(self):
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a = array([arange(10),arange(10)])
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res = array_split(a,3,axis=0)
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desired = [array([arange(10)]),array([arange(10)]),array([])]
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compare_results(res,desired)
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def test_integer_split_2D_cols(self):
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a = array([arange(10),arange(10)])
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res = array_split(a,3,axis=-1)
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desired = [array([arange(4),arange(4)]),
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array([arange(4,7),arange(4,7)]),
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array([arange(7,10),arange(7,10)])]
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compare_results(res,desired)
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def test_integer_split_2D_default(self):
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""" This will fail if we change default axis
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"""
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a = array([arange(10),arange(10)])
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res = array_split(a,3)
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desired = [array([arange(10)]),array([arange(10)]),array([])]
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compare_results(res,desired)
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#perhaps should check higher dimensions
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def test_index_split_simple(self):
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a = arange(10)
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indices = [1,5,7]
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res = array_split(a,indices,axis=-1)
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desired = [arange(0,1),arange(1,5),arange(5,7),arange(7,10)]
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compare_results(res,desired)
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def test_index_split_low_bound(self):
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a = arange(10)
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indices = [0,5,7]
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res = array_split(a,indices,axis=-1)
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desired = [array([]),arange(0,5),arange(5,7),arange(7,10)]
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compare_results(res,desired)
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def test_index_split_high_bound(self):
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a = arange(10)
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indices = [0,5,7,10,12]
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res = array_split(a,indices,axis=-1)
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desired = [array([]),arange(0,5),arange(5,7),arange(7,10),
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array([]),array([])]
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compare_results(res,desired)
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class TestSplit(TestCase):
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"""* This function is essentially the same as array_split,
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except that it test if splitting will result in an
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equal split. Only test for this case.
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*"""
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def test_equal_split(self):
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a = arange(10)
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res = split(a,2)
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desired = [arange(5),arange(5,10)]
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compare_results(res,desired)
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def test_unequal_split(self):
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a = arange(10)
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try:
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res = split(a,3)
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assert(0) # should raise an error
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except ValueError:
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pass
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class TestDstack(TestCase):
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def test_0D_array(self):
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a = array(1); b = array(2);
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res=dstack([a,b])
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desired = array([[[1,2]]])
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assert_array_equal(res,desired)
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def test_1D_array(self):
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a = array([1]); b = array([2]);
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res=dstack([a,b])
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desired = array([[[1,2]]])
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assert_array_equal(res,desired)
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def test_2D_array(self):
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a = array([[1],[2]]); b = array([[1],[2]]);
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res=dstack([a,b])
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desired = array([[[1,1]],[[2,2,]]])
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assert_array_equal(res,desired)
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def test_2D_array2(self):
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a = array([1,2]); b = array([1,2]);
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res=dstack([a,b])
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desired = array([[[1,1],[2,2]]])
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assert_array_equal(res,desired)
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""" array_split has more comprehensive test of splitting.
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only do simple test on hsplit, vsplit, and dsplit
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"""
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class TestHsplit(TestCase):
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""" only testing for integer splits.
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"""
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def test_0D_array(self):
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a= array(1)
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try:
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hsplit(a,2)
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assert(0)
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except ValueError:
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pass
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def test_1D_array(self):
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a= array([1,2,3,4])
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res = hsplit(a,2)
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desired = [array([1,2]),array([3,4])]
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compare_results(res,desired)
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def test_2D_array(self):
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a= array([[1,2,3,4],
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[1,2,3,4]])
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res = hsplit(a,2)
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desired = [array([[1,2],[1,2]]),array([[3,4],[3,4]])]
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compare_results(res,desired)
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class TestVsplit(TestCase):
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""" only testing for integer splits.
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"""
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def test_1D_array(self):
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a= array([1,2,3,4])
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try:
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vsplit(a,2)
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assert(0)
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except ValueError:
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pass
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def test_2D_array(self):
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a= array([[1,2,3,4],
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[1,2,3,4]])
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res = vsplit(a,2)
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desired = [array([[1,2,3,4]]),array([[1,2,3,4]])]
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compare_results(res,desired)
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class TestDsplit(TestCase):
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""" only testing for integer splits.
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"""
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def test_2D_array(self):
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a= array([[1,2,3,4],
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[1,2,3,4]])
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try:
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dsplit(a,2)
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assert(0)
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except ValueError:
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pass
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def test_3D_array(self):
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a= array([[[1,2,3,4],
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[1,2,3,4]],
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[[1,2,3,4],
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[1,2,3,4]]])
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res = dsplit(a,2)
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desired = [array([[[1,2],[1,2]],[[1,2],[1,2]]]),
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array([[[3,4],[3,4]],[[3,4],[3,4]]])]
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compare_results(res,desired)
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class TestSqueeze(TestCase):
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def test_basic(self):
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a = rand(20,10,10,1,1)
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b = rand(20,1,10,1,20)
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c = rand(1,1,20,10)
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assert_array_equal(squeeze(a),reshape(a,(20,10,10)))
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assert_array_equal(squeeze(b),reshape(b,(20,10,20)))
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assert_array_equal(squeeze(c),reshape(c,(20,10)))
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class TestKron(TestCase):
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def test_return_type(self):
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a = ones([2,2])
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m = asmatrix(a)
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assert_equal(type(kron(a,a)), ndarray)
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assert_equal(type(kron(m,m)), matrix)
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assert_equal(type(kron(a,m)), matrix)
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assert_equal(type(kron(m,a)), matrix)
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class myarray(ndarray):
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__array_priority__ = 0.0
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ma = myarray(a.shape, a.dtype, a.data)
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assert_equal(type(kron(a,a)), ndarray)
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assert_equal(type(kron(ma,ma)), myarray)
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assert_equal(type(kron(a,ma)), ndarray)
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assert_equal(type(kron(ma,a)), myarray)
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class TestTile(TestCase):
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def test_basic(self):
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a = array([0,1,2])
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b = [[1,2],[3,4]]
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assert_equal(tile(a,2), [0,1,2,0,1,2])
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assert_equal(tile(a,(2,2)), [[0,1,2,0,1,2],[0,1,2,0,1,2]])
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assert_equal(tile(a,(1,2)), [[0,1,2,0,1,2]])
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assert_equal(tile(b, 2), [[1,2,1,2],[3,4,3,4]])
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assert_equal(tile(b,(2,1)),[[1,2],[3,4],[1,2],[3,4]])
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assert_equal(tile(b,(2,2)),[[1,2,1,2],[3,4,3,4],
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[1,2,1,2],[3,4,3,4]])
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def test_empty(self):
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a = array([[[]]])
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d = tile(a,(3,2,5)).shape
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assert_equal(d,(3,2,0))
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def test_kroncompare(self):
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import numpy.random as nr
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reps=[(2,),(1,2),(2,1),(2,2),(2,3,2),(3,2)]
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shape=[(3,),(2,3),(3,4,3),(3,2,3),(4,3,2,4),(2,2)]
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for s in shape:
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b = nr.randint(0,10,size=s)
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for r in reps:
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a = ones(r, b.dtype)
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large = tile(b, r)
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klarge = kron(a, b)
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assert_equal(large, klarge)
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# Utility
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def compare_results(res,desired):
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for i in range(len(desired)):
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assert_array_equal(res[i],desired[i])
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if __name__ == "__main__":
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run_module_suite()
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