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"""unit tests for sparse utility functions"""
import numpy as np
from numpy.testing import *
from scipy.sparse.sputils import *
class TestSparseUtils(TestCase):
def test_upcast(self):
assert_equal(upcast('intc'),np.intc)
assert_equal(upcast('int32','float32'),np.float64)
assert_equal(upcast('bool',complex,float),np.complex128)
assert_equal(upcast('i','d'),np.float64)
def test_getdtype(self):
A = np.array([1],dtype='int8')
assert_equal(getdtype(None,default=float),np.float)
assert_equal(getdtype(None,a=A),np.int8)
def test_isscalarlike(self):
assert_equal(isscalarlike(3.0),True)
assert_equal(isscalarlike(-4),True)
assert_equal(isscalarlike(2.5),True)
assert_equal(isscalarlike(1 + 3j),True)
assert_equal(isscalarlike(np.array(3)),True)
assert_equal(isscalarlike( "16" ), True)
assert_equal(isscalarlike( np.array([3])), False)
assert_equal(isscalarlike( [[3]] ), False)
assert_equal(isscalarlike( (1,) ), False)
assert_equal(isscalarlike( (1,2) ), False)
def test_isintlike(self):
assert_equal(isintlike(3.0),True)
assert_equal(isintlike(-4),True)
assert_equal(isintlike(np.array(3)),True)
assert_equal(isintlike(np.array([3])), False)
assert_equal(isintlike(2.5),False)
assert_equal(isintlike(1 + 3j),False)
assert_equal(isintlike( (1,) ), False)
assert_equal(isintlike( (1,2) ), False)
def test_isshape(self):
assert_equal(isshape( (1,2) ),True)
assert_equal(isshape( (5,2) ),True)
assert_equal(isshape( (1.5,2) ),False)
assert_equal(isshape( (2,2,2) ),False)
assert_equal(isshape( ([2],2) ),False)
def test_issequence(self):
assert_equal(issequence( (1,) ),True)
assert_equal(issequence( (1,2,3) ),True)
assert_equal(issequence( [1] ),True)
assert_equal(issequence( [1,2,3] ),True)
assert_equal(issequence( np.array([1,2,3]) ),True)
assert_equal(issequence( np.array([[1],[2],[3]]) ),False)
assert_equal(issequence( 3 ),False)
def test_isdense(self):
assert_equal(isdense( np.array([1]) ),True)
assert_equal(isdense( np.matrix([1]) ),True)
if __name__ == "__main__":
run_module_suite()
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