PrometheusHistogramMetricsTrackerFactoryTest.new PoolStats() {...}

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	8 of 8	0%	0 of 0	n/a	2	2	2	2	2	2
{...}		0%		n/a	1	1	1	1	1	1
update()		0%		n/a	1	1	1	1	1	1