def METHOD_NAME(self):
    self.box_settings[Tags.STRUCTURE_START_MM] = [0.75, 0, 0.75]
    edge_length = 1.5
    self.box_settings[Tags.STRUCTURE_X_EXTENT_MM] = edge_length
    self.box_settings[Tags.STRUCTURE_Y_EXTENT_MM] = edge_length
    self.box_settings[Tags.STRUCTURE_Z_EXTENT_MM] = edge_length
    bs = RectangularCuboidStructure(self.global_settings, self.box_settings)
    assert bs.geometrical_volume[1, 0, 1] == 1
    assert bs.geometrical_volume[0, 0, 0] == 0.25**2
    assert bs.geometrical_volume[0, 0, 2] == 0.25**2
    assert bs.geometrical_volume[2, 0, 0] == 0.25**2
    assert bs.geometrical_volume[2, 0, 2] == 0.25**2
    assert bs.geometrical_volume[0, 0, 1] == 0.5**2
    assert bs.geometrical_volume[1, 0, 0] == 0.5**2
    assert bs.geometrical_volume[2, 0, 1] == 0.5**2
    assert bs.geometrical_volume[1, 0, 2] == 0.5**2