def METHOD_NAME(using_opengl_renderer):
    """Test VGroup item-assignment adds to correct position for OpenGLVMObjects"""
    n_items = 10
    vgroup = VGroup()
    for _i in range(n_items):
        vgroup.add(OpenGLVMobject())
    new_obj = OpenGLVMobject()
    vgroup[6] = new_obj
    assert vgroup[6] == new_obj
    assert len(vgroup) == n_items