Пример #1
0
func TestEnumerateChildren(t *testing.T) {
	bsi := bstest.Mocks(1)
	ds := NewDAGService(bsi[0])

	read := io.LimitReader(u.NewTimeSeededRand(), 1024*1024)
	root, err := imp.BuildDagFromReader(ds, chunk.NewSizeSplitter(read, 512))
	if err != nil {
		t.Fatal(err)
	}

	ks := key.NewKeySet()
	err = EnumerateChildren(context.Background(), ds, root, ks, false)
	if err != nil {
		t.Fatal(err)
	}

	var traverse func(n *Node)
	traverse = func(n *Node) {
		// traverse dag and check
		for _, lnk := range n.Links {
			k := key.Key(lnk.Hash)
			if !ks.Has(k) {
				t.Fatal("missing key in set!")
			}
			child, err := ds.Get(context.Background(), k)
			if err != nil {
				t.Fatal(err)
			}
			traverse(child)
		}
	}

	traverse(root)
}
Пример #2
0
func TestFetchGraph(t *testing.T) {
	var dservs []DAGService
	bsis := bstest.Mocks(2)
	for _, bsi := range bsis {
		dservs = append(dservs, NewDAGService(bsi))
	}

	read := io.LimitReader(u.NewTimeSeededRand(), 1024*32)
	root, err := imp.BuildDagFromReader(dservs[0], chunk.NewSizeSplitter(read, 512))
	if err != nil {
		t.Fatal(err)
	}

	err = FetchGraph(context.TODO(), root, dservs[1])
	if err != nil {
		t.Fatal(err)
	}

	// create an offline dagstore and ensure all blocks were fetched
	bs := bserv.New(bsis[1].Blockstore, offline.Exchange(bsis[1].Blockstore))

	offline_ds := NewDAGService(bs)
	ks := key.NewKeySet()

	err = EnumerateChildren(context.Background(), offline_ds, root, ks, false)
	if err != nil {
		t.Fatal(err)
	}
}
Пример #3
0
func TestEnumerateChildren(t *testing.T) {
	bsi := bstest.Mocks(1)
	ds := NewDAGService(bsi[0])

	read := io.LimitReader(u.NewTimeSeededRand(), 1024*1024)
	root, err := imp.BuildDagFromReader(ds, chunk.NewSizeSplitter(read, 512))
	if err != nil {
		t.Fatal(err)
	}

	set := cid.NewSet()
	err = EnumerateChildren(context.Background(), ds, root.Cid(), set.Visit, false)
	if err != nil {
		t.Fatal(err)
	}

	var traverse func(n node.Node)
	traverse = func(n node.Node) {
		// traverse dag and check
		for _, lnk := range n.Links() {
			c := lnk.Cid
			if !set.Has(c) {
				t.Fatal("missing key in set! ", lnk.Cid.String())
			}
			child, err := ds.Get(context.Background(), c)
			if err != nil {
				t.Fatal(err)
			}
			traverse(child)
		}
	}

	traverse(root)
}
Пример #4
0
func runBatchFetchTest(t *testing.T, read io.Reader) {
	ctx := context.Background()
	var dagservs []DAGService
	for _, bsi := range bstest.Mocks(5) {
		dagservs = append(dagservs, NewDAGService(bsi))
	}

	spl := chunk.NewSizeSplitter(read, 512)

	root, err := imp.BuildDagFromReader(dagservs[0], spl)
	if err != nil {
		t.Fatal(err)
	}

	t.Log("finished setup.")

	dagr, err := uio.NewDagReader(ctx, root, dagservs[0])
	if err != nil {
		t.Fatal(err)
	}

	expected, err := ioutil.ReadAll(dagr)
	if err != nil {
		t.Fatal(err)
	}

	_, err = dagservs[0].Add(root)
	if err != nil {
		t.Fatal(err)
	}

	t.Log("Added file to first node.")

	k, err := root.Key()
	if err != nil {
		t.Fatal(err)
	}

	wg := sync.WaitGroup{}
	errs := make(chan error)

	for i := 1; i < len(dagservs); i++ {
		wg.Add(1)
		go func(i int) {
			defer wg.Done()
			first, err := dagservs[i].Get(ctx, k)
			if err != nil {
				errs <- err
			}
			fmt.Println("Got first node back.")

			read, err := uio.NewDagReader(ctx, first, dagservs[i])
			if err != nil {
				errs <- err
			}
			datagot, err := ioutil.ReadAll(read)
			if err != nil {
				errs <- err
			}

			if !bytes.Equal(datagot, expected) {
				errs <- errors.New("Got bad data back!")
			}
		}(i)
	}

	go func() {
		wg.Wait()
		close(errs)
	}()

	for err := range errs {
		if err != nil {
			t.Fatal(err)
		}
	}
}
Пример #5
0
func runBatchFetchTest(t *testing.T, read io.Reader) {
	var dagservs []DAGService
	for _, bsi := range bstest.Mocks(t, 5) {
		dagservs = append(dagservs, NewDAGService(bsi))
	}

	spl := &chunk.SizeSplitter{512}

	root, err := imp.BuildDagFromReader(read, dagservs[0], spl, nil)
	if err != nil {
		t.Fatal(err)
	}

	t.Log("finished setup.")

	dagr, err := uio.NewDagReader(context.TODO(), root, dagservs[0])
	if err != nil {
		t.Fatal(err)
	}

	expected, err := ioutil.ReadAll(dagr)
	if err != nil {
		t.Fatal(err)
	}

	err = dagservs[0].AddRecursive(root)
	if err != nil {
		t.Fatal(err)
	}

	t.Log("Added file to first node.")

	k, err := root.Key()
	if err != nil {
		t.Fatal(err)
	}

	wg := sync.WaitGroup{}
	for i := 1; i < len(dagservs); i++ {
		wg.Add(1)
		go func(i int) {
			defer wg.Done()
			first, err := dagservs[i].Get(context.Background(), k)
			if err != nil {
				t.Fatal(err)
			}
			fmt.Println("Got first node back.")

			read, err := uio.NewDagReader(context.TODO(), first, dagservs[i])
			if err != nil {
				t.Fatal(err)
			}
			datagot, err := ioutil.ReadAll(read)
			if err != nil {
				t.Fatal(err)
			}

			if !bytes.Equal(datagot, expected) {
				t.Fatal("Got bad data back!")
			}
		}(i)
	}

	wg.Wait()
}