def METHOD_NAME(self):
    us = self.r.get("cheese")
    assert us is None
    spans = self.get_spans()
    assert len(spans) == 1
    span = spans[0]
    assert_is_measured(span)
    assert span.service == "redis"
    assert span.name == "redis.command"
    assert span.span_type == "redis"
    assert span.error == 0
    assert span.get_tag("redis.raw_command") == u"GET cheese"
    assert span.get_tag("component") == "redis"
    assert span.get_tag("db.system") == "redis"
    assert span.get_metric("redis.args_length") == 2
    assert span.resource == "GET cheese"