notify/signal_receive_cache_test.go

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package notify
import "testing"
func TestReceivedSignalCacheDetectsDuplicateAndScopeIsolation(t *testing.T) {
cache := newReceivedSignalCache(4)
if duplicate := cache.seenOrRemember("client", 1); duplicate {
t.Fatal("first signal should not be duplicate")
}
if duplicate := cache.seenOrRemember("client", 1); !duplicate {
t.Fatal("second signal with same scope/id should be duplicate")
}
if duplicate := cache.seenOrRemember("server:client-a", 1); duplicate {
t.Fatal("same signal id in another scope should not be duplicate")
}
}
func TestReceivedSignalCacheEvictsOldest(t *testing.T) {
cache := newReceivedSignalCache(2)
cache.seenOrRemember("client", 1)
cache.seenOrRemember("client", 2)
cache.seenOrRemember("client", 3)
if duplicate := cache.seenOrRemember("client", 1); duplicate {
t.Fatal("oldest signal should have been evicted from cache")
}
if duplicate := cache.seenOrRemember("client", 3); !duplicate {
t.Fatal("latest signal should still be cached")
}
}