channeldb/test: test with postgres

kvdb/kvdb_postgres.go

@@ -0,0 +1,15 @@
+// +build kvdb_postgres
+
+package kvdb
+
+import "github.com/lightningnetwork/lnd/kvdb/postgres"
+
+const PostgresBackend = true
+
+func NewPostgresFixture(dbName string) (postgres.Fixture, error) {
+	return postgres.NewFixture(dbName)
+}
+
+func StartEmbeddedPostgres() (func() error, error) {
+	return postgres.StartEmbeddedPostgres()
+}