  @Test
  public void testViewPart() {

    int[] offset = {1, 1};
    int[] size = {2, 1};
    Matrix view = test.viewPart(offset, size);
    int[] c = view.size();
    for (int row = 0; row < c[ROW]; row++) {
      for (int col = 0; col < c[COL]; col++) {
        assertEquals("value[" + row + "][" + col + ']',
            values[row + 2][col + 2], view.getQuick(row, col), EPSILON);
      }
    }
  }