public void testCCsGetNonZeros() {
SparseMatrixLil A = spzeros(3, 3);
A.append(1, 0, 5);
A.append(0, 1, 7);
A.append(0, 0, 11);
SparseMatrixCCS B = A.toCCS();
assertEquals(3, B.nonZeros());
assertEquals(2, B.nonZeros(0));
assertEquals(1, B.nonZeros(1));
assertEquals(0, B.nonZeros(2));
}
