def METHOD_NAME(self):
    """EmitterGroup.block_all"""
    grp = EmitterGroup(em1=Event)
    grp.em1.connect(self.error_event)
    with use_log_level('warning',
                       record=True, print_msg=False) as emit_list:
        grp.em1()
    assert_true(len(emit_list) >= 1)
    grp.ignore_callback_errors = False
    assert_raises(RuntimeError, grp.em1)
    grp.ignore_callback_errors = True
    with use_log_level('warning',
                       record=True, print_msg=False) as emit_list:
        grp.em1()
    assert_true(len(emit_list) >= 1)