func TestDHT(t *testing.T) { testwith.WithIpfs(t, func(node *ipfsutil.Node) { if err := node.Online(); err != nil { t.Errorf("Failed to go online: %v", err) return } t.Logf("Im online.") data := []byte("Im a moose") mh, err := ipfsutil.AddBlock(node, data) if err != nil { t.Errorf("Adding block failed: %v", err) return } t.Logf("Added block.") peers, err := ipfsutil.Locate(node, mh, 1, 5*time.Second) t.Logf("Located.") if err != nil { t.Errorf("Looking up providers failed: %v", err) return } for _, peer := range peers { // TODO: check if fmt.Println(peer) } blockData, err := ipfsutil.CatBlock(node, mh, 1*time.Second) if err != nil { t.Errorf("Retrieving block failed: %v", err) return } if !bytes.Equal(data, blockData) { t.Errorf("Returned block data differs.") t.Errorf("\tExpect: %v", data) t.Errorf("\tGot: %v", blockData) return } // Modify the hash and hope it there is none like that yet. mh[0] = 0 _, err = ipfsutil.CatBlock(node, mh, 1*time.Second) if err != util.ErrTimeout { t.Errorf("Oops, is there really a hash like that? %v", err) return } }) }
func (id ID) Taken(node *ipfsutil.Node) (bool, error) { data, err := ipfsutil.CatBlock(node, id.Hash(), 5*time.Second) if err != nil { return false, err } // This is kinda paranoid... // (Disclaimer: I doubt hash collisions, but bugs are everywhere) return bytes.Equal(data, id.asBlockData()), nil }