prysm-pulse/beacon-chain/db/testing/setup_db.go

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// Package testing allows for spinning up a real bolt-db
// instance for unit tests throughout the Prysm repo.
package testing
import (
"context"
"testing"
"github.com/prysmaticlabs/prysm/beacon-chain/cache"
"github.com/prysmaticlabs/prysm/beacon-chain/db"
"github.com/prysmaticlabs/prysm/beacon-chain/db/kv"
)
// SetupDB instantiates and returns database backed by key value store.
func SetupDB(t testing.TB) (db.Database, *cache.StateSummaryCache) {
sc := cache.NewStateSummaryCache()
s, err := kv.NewKVStore(context.Background(), t.TempDir(), sc)
if err != nil {
t.Fatal(err)
}
t.Cleanup(func() {
if err := s.Close(); err != nil {
t.Fatalf("failed to close database: %v", err)
}
})
return s, sc
}