private Metrics getLabeledValueMetrics(long timeBucket, String values) {
        MockLabeledValueMetrics mockLabeledValueMetrics = new MockLabeledValueMetrics();
        mockLabeledValueMetrics.setValue(new DataTable(values));
        mockLabeledValueMetrics.setTimeBucket(timeBucket);
        return mockLabeledValueMetrics;
    }
Running rule is the core of how does alarm work.
<p>
So in this test, we need to simulate a lot of scenario to see the reactions.
oap-server/server-alarm-plugin/src/test/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRuleTest.java