type indexedWatchers struct {
	allWatchers   map[namespacedName]watchersMap
	valueWatchers map[string]watchersMap
}

func (i *indexedWatchers) addWatcher(w *cacheWatcher, number int, scope namespacedName, value string, supported bool) {
	if supported {
		if _, ok := i.valueWatchers[value]; !ok {
			i.valueWatchers[value] = watchersMap{}
		}
		i.valueWatchers[value].addWatcher(w, number)
	} else {

		cacher.Lock()
		defer cacher.Unlock()

		require.Equal(t, expectedWatchersCounter, len(cacher.watchers.allWatchers))
		require.Equal(t, expectedValueWatchersCounter, len(cacher.watchers.valueWatchers))
	}
	assertCacherInternalState(0, 0)

	var forgetWatcherFn func(bool)
	var forgetCounter int
	forgetWatcherWrapped := func(drainWatcher bool) {
		forgetCounter++
		forgetWatcherFn(drainWatcher)