public void SparseRowMatrixCheck()
{
SparseRowMatrix sm = new SparseRowMatrix(10, 100);
Assert.Equal(0, sm.NonZeroValueCount);
sm.At(8, 8, 0);
Assert.Equal(0.0D, sm.At(8, 8)); // Should not insert a value
Assert.Equal(0, sm.NonZeroValueCount);
Assert.Equal(sm.rowLength(0), 0);
Assert.Throws <IndexOutOfRangeException>(() => sm.rowLength(-2));
Assert.Throws <ArgumentOutOfRangeException>(() => sm.RowLengthSafe(-2));
Assert.Throws <IndexOutOfRangeException>(() => sm.rowLength(101));
Assert.Throws <ArgumentOutOfRangeException>(() => sm.RowLengthSafe(101));
}
