diff --git a/resolver/resolver_test.go b/resolver/resolver_test.go index 480ccdf..d3c6913 100644 --- a/resolver/resolver_test.go +++ b/resolver/resolver_test.go @@ -105,3 +105,43 @@ func TestRecurivePathResolution(t *testing.T) { p.String(), rCid.String(), cKey.String())) } } + +func TestResolveToLastNode_NoUnnecessaryFetching(t *testing.T) { + ctx := context.Background() + dagService := dagmock.Mock() + + a := randNode() + b := randNode() + + err := a.AddNodeLink("child", b) + if err != nil { + t.Fatal(err) + } + + err = dagService.Add(ctx, a) + if err != nil { + t.Fatal(err) + } + + aKey := a.Cid() + + segments := []string{aKey.String(), "child"} + p, err := path.FromSegments("/ipfs/", segments...) + if err != nil { + t.Fatal(err) + } + + resolver := resolver.NewBasicResolver(dagService) + resolvedCID, remainingPath, err := resolver.ResolveToLastNode(ctx, p) + if err != nil { + t.Fatal(err) + } + + if len(remainingPath) > 0 { + t.Fatal("cannot have remaining path") + } + + if !resolvedCID.Equals(b.Cid()) { + t.Fatal("resolved to the wrong CID") + } +}