func makeFakeDB(graph *dag.DAG, sig []byte) BuildDB {
var bdb BuildDB = db.NewFakeDB()
for _, node := range graph.Nodes() {
record := db.NewBuildRecord()
record.SetTargetSignature(sig)
for _, parent := range graph.ParentNodes(node) {
record.AddParent(parent.Name(), sig)
}
bdb.WriteNode(node.Name(), record)
}
return bdb
}
