GoodTestHelpers.java

class MeteredCacheTest {
  Meter gets = new Meter();
  Meter puts = new Meter();
  Meter hits = new Meter();
  MetricRegistry metrics = new MetricRegistry();
  
  Cache delegate = mock<Cache>();
  Cache cache = new MeteredCache(delegate, metrics);

  @Test
  void getAndPut() {
    registerMetrics();
    // test cache and check generated metrics
  }
  
  void registerMetrics() {
    metrics.register("gets", puts);
    metrics.register("puts", puts);
    metrics.register("hits", hits);
  }
}