def test_getRow(self):
"""Get a row"""
exp = SparseMat(1,3)
exp.update({(0,2):3})
obs = self.obj.getRow(1)
self.assertEqual(obs, exp)
exp = SparseMat(1,3)
obs = self.obj.getRow(4)
self.assertEqual(obs,exp)
obj = SparseMat(4,1)
obj[0,0] = 5
obj[1,0] = 6
obj[2,0] = 7
obj[3,0] = 8
exp1 = SparseMat(1,1)
exp1[0,0] = 5
exp2 = SparseMat(1,1)
exp2[0,0] = 6
exp3 = SparseMat(1,1)
exp3[0,0] = 7
exp4 = SparseMat(1,1)
exp4[0,0] = 8
obs1 = obj.getRow(0)
obs2 = obj.getRow(1)
obs3 = obj.getRow(2)
obs4 = obj.getRow(3)
self.assertRaises(IndexError,obj.getRow, 4)
self.assertEqual(obs1, exp1)
self.assertEqual(obs2, exp2)
self.assertEqual(obs3, exp3)
self.assertEqual(obs4, exp4)
self.assertRaises(KeyError, self.obj.getRow, -1)
class SparseMatTests(TestCase):
def setUp(self):
self.obj = SparseMat(6,3)
self.obj.update({(1,2):3,(5,2):6})
def test_copy(self):
"""copy thy self"""
obs = self.obj.copy()
self.assertEqual(obs, self.obj)
self.assertNotEqual(id(obs), id(self.obj))
obs[1,2] = 10
self.assertNotEqual(obs, self.obj)
obs[1,2] = 3
obs[0,0] = 5
self.assertNotEqual(obs, self.obj)
self.assertNotEqual(id(self.obj._index_rows), id(obs._index_rows))
self.assertNotEqual(id(self.obj._index_cols), id(obs._index_cols))
def test_rebuildIndices(self):
"""rebuild table indices"""
sm = SparseMat(3,4,enable_indices=False)
sm[0,0] = 10
sm[0,2] = 0
sm[1,3] = -5
sm[1,2] = 1
self.assertEqual(sm._index_rows, None)
self.assertEqual(sm._index_cols, None)
sm.rebuildIndices()
self.assertEqual(sm._index_rows, [set([(0,0)]),set([(1,3), (1,2)]),
set([])])
self.assertEqual(sm._index_cols, [set([(0,0)]), set([]),
set([(1,2)]), set([(1,3)])])
def test_setitem(self):
self.obj[(2,2)] = 10
exp = sorted([((1,2),3),((5,2),6),((2,2),10)])
self.assertEqual(sorted(self.obj.items()), exp)
self.assertRaises(KeyError, self.obj.__setitem__, (100,50), 10)
self.assertEqual(self.obj._index_rows, [set(),set([(1,2)]),
set([(2,2)]), set(), set(),
set([(5,2)])])
self.assertEqual(self.obj._index_cols, [set(),set(),
set([(1,2),(2,2),(5,2)])])
def test_getitem_simple(self):
"""Tests simple getitem"""
self.assertEqual(self.obj[(1,2)], 3)
self.assertEqual(self.obj[1,2], 3)
self.assertEqual(self.obj[1,1], 0)
self.assertRaises(KeyError, self.obj.__getitem__, (3,3))
self.assertRaises(KeyError, self.obj.__getitem__, (-1,2))
self.assertRaises(IndexError, self.obj.__getitem__, 1)
def test_getitem_slice(self):
"""Tests for slices on getitem"""
exp = SparseMat(1,3)
exp[0,2] = 3
self.assertEqual(exp, self.obj[1,:])
exp = SparseMat(6,1)
exp[1,0] = 3
exp[5,0] = 6
self.assertEqual(exp, self.obj[:,2])
self.assertRaises(IndexError, self.obj.__getitem__, (10,slice(None)))
self.assertRaises(AttributeError, self.obj.__getitem__, (3, slice(1,2,3)))
def test_contains(self):
"""Make sure we can check things exist"""
sm1 = SparseMat(3,4)
for r in range(3):
for c in range(4):
assert (r,c) not in sm1
sm1[1,2] = 0
assert (1,2) not in sm1
sm1[1,2] = 10
assert (1,2) in sm1
sm1.erase(1,2)
assert (1,2) not in sm1
def test_erase(self):
"""Make sure we can get rid of elements"""
sm1 = SparseMat(4,6)
self.assertEqual(sm1[2,3], 0.0)
sm1.erase(2,3)
self.assertEqual(sm1[2,3], 0.0)
sm1[2,3] = 10
self.assertEqual(sm1[2,3], 10.0)
self.assertEqual(sm1._index_rows, [set([]), set([]), set([(2,3)]), set([])])
self.assertEqual(sm1._index_cols, [set([]), set([]), set([]), set([(2,3)]), set([]), set([])])
sm1.erase(2,3)
self.assertEqual(sm1._index_rows, [set([]), set([]), set([]), set([])])
self.assertEqual(sm1._index_cols, [set([]), set([]), set([]), set([]), set([]), set([])])
self.assertEqual(sm1[2,3], 0.0)
self.assertEqual(sm1._index_rows, [set([]), set([]), set([]), set([])])
self.assertEqual(sm1._index_cols, [set([]), set([]), set([]), set([]), set([]), set([])])
def test_eq(self):
"""Tests for equality"""
sm1 = SparseMat(4,6)
sm2 = SparseMat(4,6)
sm3 = SparseMat(6,4)
self.assertEqual(sm1, sm2)
self.assertNotEqual(sm1,sm3)
sm1[0,1] = 10
sm2[0,1] = 5
self.assertNotEqual(sm1, sm2)
sm2[0,1] = 10
self.assertEqual(sm1, sm2)
def test_update_internal_indices(self):
"""Update internal indices"""
sd = SparseMat(2,3)
self.assertEqual(sd._index_rows, [set(),set()])
self.assertEqual(sd._index_cols, [set(),set(),set()])
sd[(1,2)] = 5
self.assertEqual(sd._index_rows, [set(),set([(1,2)])])
self.assertEqual(sd._index_cols, [set(),set(),set([(1,2)])])
sd[(1,2)] = 0
self.assertEqual(sd._index_rows, [set(),set()])
self.assertEqual(sd._index_cols, [set(),set(),set()])
sd[(1,1)] = 0
self.assertEqual(sd._index_rows, [set(),set()])
self.assertEqual(sd._index_cols, [set(),set(),set()])
def test_getRow(self):
"""Get a row"""
exp = SparseMat(1,3)
exp.update({(0,2):3})
obs = self.obj.getRow(1)
self.assertEqual(obs, exp)
exp = SparseMat(1,3)
obs = self.obj.getRow(4)
self.assertEqual(obs,exp)
obj = SparseMat(4,1)
obj[0,0] = 5
obj[1,0] = 6
obj[2,0] = 7
obj[3,0] = 8
exp1 = SparseMat(1,1)
exp1[0,0] = 5
exp2 = SparseMat(1,1)
exp2[0,0] = 6
exp3 = SparseMat(1,1)
exp3[0,0] = 7
exp4 = SparseMat(1,1)
exp4[0,0] = 8
obs1 = obj.getRow(0)
obs2 = obj.getRow(1)
obs3 = obj.getRow(2)
obs4 = obj.getRow(3)
self.assertRaises(IndexError,obj.getRow, 4)
self.assertEqual(obs1, exp1)
self.assertEqual(obs2, exp2)
self.assertEqual(obs3, exp3)
self.assertEqual(obs4, exp4)
self.assertRaises(KeyError, self.obj.getRow, -1)
def test_getCol(self):
"""Get a col"""
exp = SparseMat(6,1)
exp.update({(1,0):3,(5,0):6})
obs = self.obj.getCol(2)
self.assertEqual(obs,exp)
exp = SparseMat(6,1)
obs = self.obj.getCol(1)
self.assertEqual(obs,exp)
self.assertRaises(KeyError, self.obj.getCol, -1)
def test_update(self):
"""updates should work and update indexes"""
items = self.obj.items()
indexes = (self.obj._index_rows, self.obj._index_cols)
self.obj.update({(1,2):3,(5,2):6})
self.assertEqual(items, self.obj.items())
self.assertEqual(indexes, (self.obj._index_rows, self.obj._index_cols))
self.obj.update({(1,2):0,(5,2):6})
self.assertEqual(self.obj.items(), {(5,2):6}.items())
self.assertEqual(self.obj._index_rows, [set(),set(),set(),set(),\
set(), set([(5,2)])])
self.assertEqual(self.obj._index_cols, [set(),set(),set([(5,2)])])
self.obj.update({(1,2):1,(2,2):0,(1,1):10})
self.assertEqual(sorted(self.obj.items()), sorted({(1,2):1.0,(1,1):10.0,(5,2):6.0}.items()))
self.assertEqual(self.obj._index_rows, [set(),set([(1,2),(1,1)]),\
set(),set(),\
set(), set([(5,2)])])
self.assertEqual(self.obj._index_cols, [set(),set([(1,1)]),set([(1,2),(5,2)])])
def test_T(self):
"""test transpose"""
exp = SparseMat(3,6)
exp.update({(2,1):3,(2,5):6})
obs = self.obj.T
self.assertEqual(obs, exp)
def test_get_size(self):
"""test getting the number of nonzero elements"""
self.assertEqual(self.obj.size, 2)
# Test with setting an element explicitly to zero.
sm = SparseMat(2,4)
sm.update({(0,1):3,(1,2):7,(0,0):0})
self.assertEqual(sm.size, 2)
# Test with an empty matrix.
sm = SparseMat(2,4)
self.assertEqual(sm.size, 0)
sm = SparseMat(0,0)
self.assertEqual(sm.size, 0)
