Esempio n. 1
0
func TestIndirectBlocks(t *testing.T) {
	splitter := &chunk.SizeSplitter{512}
	nbytes := 1024 * 1024
	buf := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(buf)

	read := bytes.NewReader(buf)

	ds := mdtest.Mock(t)
	dag, err := buildTestDag(read, ds, splitter)
	if err != nil {
		t.Fatal(err)
	}

	reader, err := uio.NewDagReader(context.Background(), dag, ds)
	if err != nil {
		t.Fatal(err)
	}

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

	if !bytes.Equal(out, buf) {
		t.Fatal("Not equal!")
	}
}
Esempio n. 2
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func TestBuilderConsistency(t *testing.T) {
	nbytes := 100000
	buf := new(bytes.Buffer)
	io.CopyN(buf, u.NewTimeSeededRand(), int64(nbytes))
	should := dup(buf.Bytes())
	dagserv := mdtest.Mock(t)
	nd, err := buildTestDag(buf, dagserv, chunk.DefaultSplitter)
	if err != nil {
		t.Fatal(err)
	}
	r, err := uio.NewDagReader(context.Background(), nd, dagserv)
	if err != nil {
		t.Fatal(err)
	}

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

	err = arrComp(out, should)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 3
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func testFileConsistency(t *testing.T, bs chunk.BlockSplitter, nbytes int) {
	should := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(should)

	read := bytes.NewReader(should)
	ds := mdtest.Mock(t)
	nd, err := buildTestDag(read, ds, bs)
	if err != nil {
		t.Fatal(err)
	}

	r, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

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

	err = arrComp(out, should)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 4
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func TestSeekToAlmostBegin(t *testing.T) {
	ds := mdtest.Mock()
	nd, should := getTestDag(t, ds, 10*1024, 500)

	rs, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	n, err := io.CopyN(ioutil.Discard, rs, 1024*4)
	if err != nil {
		t.Fatal(err)
	}
	if n != 4096 {
		t.Fatal("Copy didnt copy enough bytes")
	}

	seeked, err := rs.Seek(1, os.SEEK_SET)
	if err != nil {
		t.Fatal(err)
	}
	if seeked != 1 {
		t.Fatal("Failed to seek to almost beginning")
	}

	dagrArrComp(t, rs, should[1:])
}
Esempio n. 5
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func TestBalancedDag(t *testing.T) {
	ds := mdtest.Mock()
	buf := make([]byte, 10000)
	u.NewTimeSeededRand().Read(buf)
	r := bytes.NewReader(buf)

	nd, err := BuildDagFromReader(ds, chunk.DefaultSplitter(r), nil)
	if err != nil {
		t.Fatal(err)
	}

	dr, err := uio.NewDagReader(context.TODO(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

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

	if !bytes.Equal(out, buf) {
		t.Fatal("bad read")
	}
}
Esempio n. 6
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func TestAddLink(t *testing.T) {
	ds := mdtest.Mock()
	fishnode := &dag.Node{
		Data: []byte("fishcakes!"),
	}

	fk, err := ds.Add(fishnode)
	if err != nil {
		t.Fatal(err)
	}

	nd := new(dag.Node)
	nnode, err := addLink(context.Background(), ds, nd, "fish", fishnode)
	if err != nil {
		t.Fatal(err)
	}

	fnprime, err := nnode.GetLinkedNode(context.Background(), ds, "fish")
	if err != nil {
		t.Fatal(err)
	}

	fnpkey, err := fnprime.Key()
	if err != nil {
		t.Fatal(err)
	}

	if fnpkey != fk {
		t.Fatal("wrong child node found!")
	}
}
Esempio n. 7
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func TestSeekingConsistency(t *testing.T) {
	nbytes := int64(128 * 1024)
	ds := mdtest.Mock()
	nd, should := getTestDag(t, ds, nbytes, 500)

	rs, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	out := make([]byte, nbytes)

	for coff := nbytes - 4096; coff >= 0; coff -= 4096 {
		t.Log(coff)
		n, err := rs.Seek(coff, os.SEEK_SET)
		if err != nil {
			t.Fatal(err)
		}
		if n != coff {
			t.Fatal("wasnt able to seek to the right position")
		}
		nread, err := rs.Read(out[coff : coff+4096])
		if err != nil {
			t.Fatal(err)
		}
		if nread != 4096 {
			t.Fatal("didnt read the correct number of bytes")
		}
	}

	err = arrComp(out, should)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 8
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func TestAddLink(t *testing.T) {
	ds := mdtest.Mock()
	fishnode := dag.NodeWithData([]byte("fishcakes!"))

	fk, err := ds.Add(fishnode)
	if err != nil {
		t.Fatal(err)
	}

	nd := new(dag.ProtoNode)
	nnode, err := addLink(context.Background(), ds, nd, "fish", fishnode)
	if err != nil {
		t.Fatal(err)
	}

	fnprime, err := nnode.GetLinkedNode(context.Background(), ds, "fish")
	if err != nil {
		t.Fatal(err)
	}

	fnpkey := fnprime.Cid()
	if !fnpkey.Equals(fk) {
		t.Fatal("wrong child node found!")
	}
}
Esempio n. 9
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func TestSeekToBegin(t *testing.T) {
	ds := mdtest.Mock()
	nd, should := getTestDag(t, ds, 10*1024, 500)

	rs, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	n, err := io.CopyN(ioutil.Discard, rs, 1024*4)
	if err != nil {
		t.Fatal(err)
	}
	if n != 4096 {
		t.Fatal("Copy didnt copy enough bytes")
	}

	seeked, err := rs.Seek(0, os.SEEK_SET)
	if err != nil {
		t.Fatal(err)
	}
	if seeked != 0 {
		t.Fatal("Failed to seek to beginning")
	}

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

	err = arrComp(out, should)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 10
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func TestSeekingBasic(t *testing.T) {
	nbytes := int64(10 * 1024)
	ds := mdtest.Mock()
	nd, should := getTestDag(t, ds, nbytes, 500)

	rs, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	start := int64(4000)
	n, err := rs.Seek(start, os.SEEK_SET)
	if err != nil {
		t.Fatal(err)
	}
	if n != start {
		t.Fatal("Failed to seek to correct offset")
	}

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

	err = arrComp(out, should[start:])
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 11
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func TestEmptyKey(t *testing.T) {
	ds := dstest.Mock()
	_, err := ds.Get(context.Background(), key.Key(""))
	if err != ErrNotFound {
		t.Error("dag service should error when key is nil", err)
	}
}
Esempio n. 12
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func TestSeekEndSingleBlockFile(t *testing.T) {
	nbytes := int64(100)
	should := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(should)

	read := bytes.NewReader(should)
	ds := mdtest.Mock(t)
	nd, err := buildTestDag(read, ds, &chunk.SizeSplitter{5000})
	if err != nil {
		t.Fatal(err)
	}

	rs, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	seeked, err := rs.Seek(0, os.SEEK_END)
	if err != nil {
		t.Fatal(err)
	}
	if seeked != nbytes {
		t.Fatal("Failed to seek to end")
	}
}
Esempio n. 13
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func getBalancedDag(t testing.TB, size int64, blksize int) (*dag.Node, dag.DAGService) {
	ds := mdtest.Mock(t)
	r := io.LimitReader(u.NewTimeSeededRand(), size)
	nd, err := BuildDagFromReader(r, ds, &chunk.SizeSplitter{blksize}, nil)
	if err != nil {
		t.Fatal(err)
	}
	return nd, ds
}
Esempio n. 14
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func getTrickleDag(t testing.TB, size int64, blksize int64) (*dag.Node, dag.DAGService) {
	ds := mdtest.Mock()
	r := io.LimitReader(u.NewTimeSeededRand(), size)
	nd, err := BuildTrickleDagFromReader(ds, chunk.NewSizeSplitter(r, blksize), nil)
	if err != nil {
		t.Fatal(err)
	}
	return nd, ds
}
Esempio n. 15
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func TestCantGet(t *testing.T) {
	ds := dstest.Mock()
	a := NodeWithData([]byte("A"))

	c := a.Cid()
	_, err := ds.Get(context.Background(), c)
	if !strings.Contains(err.Error(), "not found") {
		t.Fatal("expected err not found, got: ", err)
	}
}
Esempio n. 16
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func TestFetchFailure(t *testing.T) {
	ds := dstest.Mock()
	ds_bad := dstest.Mock()

	top := new(Node)
	for i := 0; i < 10; i++ {
		nd := &Node{Data: []byte{byte('a' + i)}}
		_, err := ds.Add(nd)
		if err != nil {
			t.Fatal(err)
		}

		err = top.AddNodeLinkClean(fmt.Sprintf("AA%d", i), nd)
		if err != nil {
			t.Fatal(err)
		}
	}

	for i := 0; i < 10; i++ {
		nd := &Node{Data: []byte{'f', 'a' + byte(i)}}
		_, err := ds_bad.Add(nd)
		if err != nil {
			t.Fatal(err)
		}

		err = top.AddNodeLinkClean(fmt.Sprintf("BB%d", i), nd)
		if err != nil {
			t.Fatal(err)
		}
	}

	getters := GetDAG(context.Background(), ds, top)
	for i, getter := range getters {
		_, err := getter.Get(context.Background())
		if err != nil && i < 10 {
			t.Fatal(err)
		}
		if err == nil && i >= 10 {
			t.Fatal("should have failed request")
		}
	}
}
Esempio n. 17
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func testFileConsistency(t *testing.T, nbytes int64, blksize int64) {
	ds := mdtest.Mock()
	nd, should := getTestDag(t, ds, nbytes, blksize)

	r, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	dagrArrComp(t, r, should)
}
Esempio n. 18
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func TestTwoChunks(t *testing.T) {
	ds := mdtest.Mock()

	nd, should := getTestDag(t, ds, 2000, 1000)
	r, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	dagrArrComp(t, r, should)
}
Esempio n. 19
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func TestGetRawNodes(t *testing.T) {
	rn := NewRawNode([]byte("test"))

	ds := dstest.Mock()

	c, err := ds.Add(rn)
	if err != nil {
		t.Fatal(err)
	}

	if !c.Equals(rn.Cid()) {
		t.Fatal("output cids didnt match")
	}

	out, err := ds.Get(context.TODO(), c)
	if err != nil {
		t.Fatal(err)
	}

	if !bytes.Equal(out.RawData(), []byte("test")) {
		t.Fatal("raw block should match input data")
	}

	if out.Links() != nil {
		t.Fatal("raw blocks shouldnt have links")
	}

	if out.Tree("", -1) != nil {
		t.Fatal("tree should return no paths in a raw block")
	}

	size, err := out.Size()
	if err != nil {
		t.Fatal(err)
	}
	if size != 4 {
		t.Fatal("expected size to be 4")
	}

	ns, err := out.Stat()
	if err != nil {
		t.Fatal(err)
	}

	if ns.DataSize != 4 {
		t.Fatal("expected size to be 4, got: ", ns.DataSize)
	}

	_, _, err = out.Resolve([]string{"foo"})
	if err != ErrLinkNotFound {
		t.Fatal("shouldnt find links under raw blocks")
	}
}
Esempio n. 20
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func TestFindLink(t *testing.T) {
	ds := mdtest.Mock()
	k, err := ds.Add(new(ProtoNode))
	if err != nil {
		t.Fatal(err)
	}

	nd := &ProtoNode{}
	nd.SetLinks([]*node.Link{
		{Name: "a", Cid: k},
		{Name: "c", Cid: k},
		{Name: "b", Cid: k},
	})

	_, err = ds.Add(nd)
	if err != nil {
		t.Fatal(err)
	}

	lnk, err := nd.GetNodeLink("b")
	if err != nil {
		t.Fatal(err)
	}

	if lnk.Name != "b" {
		t.Fatal("got wrong link back")
	}

	_, err = nd.GetNodeLink("f")
	if err != ErrLinkNotFound {
		t.Fatal("shouldnt have found link")
	}

	_, err = nd.GetLinkedNode(context.Background(), ds, "b")
	if err != nil {
		t.Fatal(err)
	}

	outnd, err := nd.UpdateNodeLink("b", nd)
	if err != nil {
		t.Fatal(err)
	}

	olnk, err := outnd.GetNodeLink("b")
	if err != nil {
		t.Fatal(err)
	}

	if olnk.Cid.String() == k.String() {
		t.Fatal("new link should have different hash")
	}
}
Esempio n. 21
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func TestRecurivePathResolution(t *testing.T) {
	ctx := context.Background()
	dagService := dagmock.Mock()

	a, _ := randNode()
	b, _ := randNode()
	c, cKey := randNode()

	err := b.AddNodeLink("grandchild", c)
	if err != nil {
		t.Fatal(err)
	}

	err = a.AddNodeLink("child", b)
	if err != nil {
		t.Fatal(err)
	}

	for _, n := range []*merkledag.Node{a, b, c} {
		_, err = dagService.Add(n)
		if err != nil {
			t.Fatal(err)
		}
	}

	aKey, err := a.Key()
	if err != nil {
		t.Fatal(err)
	}

	segments := []string{aKey.String(), "child", "grandchild"}
	p, err := path.FromSegments("/ipfs/", segments...)
	if err != nil {
		t.Fatal(err)
	}

	resolver := &path.Resolver{DAG: dagService}
	node, err := resolver.ResolvePath(ctx, p)
	if err != nil {
		t.Fatal(err)
	}

	key, err := node.Key()
	if err != nil {
		t.Fatal(err)
	}
	if key.String() != cKey.String() {
		t.Fatal(fmt.Errorf(
			"recursive path resolution failed for %s: %s != %s",
			p.String(), key.String(), cKey.String()))
	}
}
Esempio n. 22
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// This test appends one byte at a time to an empty file
func TestMultipleAppends(t *testing.T) {
	ds := mdtest.Mock()

	// TODO: fix small size appends and make this number bigger
	nbytes := int64(1000)
	should := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(should)

	read := bytes.NewReader(nil)
	nd, err := buildTestDag(ds, chunk.NewSizeSplitter(read, 500))
	if err != nil {
		t.Fatal(err)
	}

	dbp := &h.DagBuilderParams{
		Dagserv:  ds,
		Maxlinks: 4,
	}

	spl := chunk.SizeSplitterGen(500)

	ctx := context.Background()
	for i := 0; i < len(should); i++ {
		blks, errs := chunk.Chan(spl(bytes.NewReader(should[i : i+1])))

		nnode, err := TrickleAppend(ctx, nd, dbp.New(blks, errs))
		if err != nil {
			t.Fatal(err)
		}

		err = VerifyTrickleDagStructure(nnode, ds, dbp.Maxlinks, layerRepeat)
		if err != nil {
			t.Fatal(err)
		}

		fread, err := uio.NewDagReader(ctx, nnode, ds)
		if err != nil {
			t.Fatal(err)
		}

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

		err = arrComp(out, should[:i+1])
		if err != nil {
			t.Fatal(err)
		}
	}
}
Esempio n. 23
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func TestSet(t *testing.T) {
	ds := mdtest.Mock()
	limit := 10000 // 10000 reproduces the pinloss issue fairly reliably

	if os.Getenv("STRESS_IT_OUT_YO") != "" {
		limit = 10000000
	}
	var inputs []*cid.Cid
	for i := 0; i < limit; i++ {
		c, err := ds.Add(dag.NodeWithData([]byte(fmt.Sprint(i))))
		if err != nil {
			t.Fatal(err)
		}

		inputs = append(inputs, c)
	}

	out, err := storeSet(context.Background(), ds, inputs, ignoreCids)
	if err != nil {
		t.Fatal(err)
	}

	// weird wrapper node because loadSet expects us to pass an
	// object pointing to multiple named sets
	setroot := &dag.ProtoNode{}
	err = setroot.AddNodeLinkClean("foo", out)
	if err != nil {
		t.Fatal(err)
	}

	outset, err := loadSet(context.Background(), ds, setroot, "foo", ignoreCids)
	if err != nil {
		t.Fatal(err)
	}

	if len(outset) != limit {
		t.Fatal("got wrong number", len(outset), limit)
	}

	seen := cid.NewSet()
	for _, c := range outset {
		seen.Add(c)
	}

	for _, c := range inputs {
		if !seen.Has(c) {
			t.Fatalf("expected to have %s, didnt find it")
		}
	}
}
Esempio n. 24
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func TestAppend(t *testing.T) {
	nbytes := int64(128 * 1024)
	should := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(should)

	// Reader for half the bytes
	read := bytes.NewReader(should[:nbytes/2])
	ds := mdtest.Mock()
	nd, err := buildTestDag(ds, chunk.NewSizeSplitter(read, 500))
	if err != nil {
		t.Fatal(err)
	}

	dbp := &h.DagBuilderParams{
		Dagserv:  ds,
		Maxlinks: h.DefaultLinksPerBlock,
	}

	r := bytes.NewReader(should[nbytes/2:])
	blks, errs := chunk.Chan(chunk.NewSizeSplitter(r, 500))

	ctx := context.Background()
	nnode, err := TrickleAppend(ctx, nd, dbp.New(blks, errs))
	if err != nil {
		t.Fatal(err)
	}

	err = VerifyTrickleDagStructure(nnode, ds, dbp.Maxlinks, layerRepeat)
	if err != nil {
		t.Fatal(err)
	}

	fread, err := uio.NewDagReader(ctx, nnode, ds)
	if err != nil {
		t.Fatal(err)
	}

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

	err = arrComp(out, should)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 25
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func TestAppendSingleBytesToEmpty(t *testing.T) {
	ds := mdtest.Mock()

	data := []byte("AB")

	nd := new(merkledag.Node)
	nd.Data = ft.FilePBData(nil, 0)

	dbp := &h.DagBuilderParams{
		Dagserv:  ds,
		Maxlinks: 4,
	}

	spl := chunk.SizeSplitterGen(500)

	blks, errs := chunk.Chan(spl(bytes.NewReader(data[:1])))

	ctx := context.Background()
	nnode, err := TrickleAppend(ctx, nd, dbp.New(blks, errs))
	if err != nil {
		t.Fatal(err)
	}

	blks, errs = chunk.Chan(spl(bytes.NewReader(data[1:])))

	nnode, err = TrickleAppend(ctx, nnode, dbp.New(blks, errs))
	if err != nil {
		t.Fatal(err)
	}

	fread, err := uio.NewDagReader(ctx, nnode, ds)
	if err != nil {
		t.Fatal(err)
	}

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

	fmt.Println(out, data)
	err = arrComp(out, data)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 26
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func TestAppend(t *testing.T) {
	nbytes := int64(128 * 1024)
	should := make([]byte, nbytes)
	u.NewTimeSeededRand().Read(should)

	// Reader for half the bytes
	read := bytes.NewReader(should[:nbytes/2])
	ds := mdtest.Mock(t)
	nd, err := buildTestDag(read, ds, &chunk.SizeSplitter{500})
	if err != nil {
		t.Fatal(err)
	}

	dbp := &h.DagBuilderParams{
		Dagserv:  ds,
		Maxlinks: h.DefaultLinksPerBlock,
	}

	spl := &chunk.SizeSplitter{500}
	blks := spl.Split(bytes.NewReader(should[nbytes/2:]))

	nnode, err := TrickleAppend(nd, dbp.New(blks))
	if err != nil {
		t.Fatal(err)
	}

	err = VerifyTrickleDagStructure(nnode, ds, dbp.Maxlinks, layerRepeat)
	if err != nil {
		t.Fatal(err)
	}

	fread, err := uio.NewDagReader(context.TODO(), nnode, ds)
	if err != nil {
		t.Fatal(err)
	}

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

	err = arrComp(out, should)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 27
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func TestAppendSingleBytesToEmpty(t *testing.T) {
	ds := mdtest.Mock(t)

	data := []byte("AB")

	nd := new(merkledag.Node)
	nd.Data = ft.FilePBData(nil, 0)

	dbp := &h.DagBuilderParams{
		Dagserv:  ds,
		Maxlinks: 4,
	}

	spl := &chunk.SizeSplitter{500}

	blks := spl.Split(bytes.NewReader(data[:1]))

	nnode, err := TrickleAppend(nd, dbp.New(blks))
	if err != nil {
		t.Fatal(err)
	}

	blks = spl.Split(bytes.NewReader(data[1:]))

	nnode, err = TrickleAppend(nnode, dbp.New(blks))
	if err != nil {
		t.Fatal(err)
	}

	fread, err := uio.NewDagReader(context.TODO(), nnode, ds)
	if err != nil {
		t.Fatal(err)
	}

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

	fmt.Println(out, data)
	err = arrComp(out, data)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 28
0
func TestSeekEndSingleBlockFile(t *testing.T) {
	nbytes := int64(100)
	ds := mdtest.Mock()
	nd, _ := getTestDag(t, ds, nbytes, 5000)

	rs, err := uio.NewDagReader(context.Background(), nd, ds)
	if err != nil {
		t.Fatal(err)
	}

	seeked, err := rs.Seek(0, os.SEEK_END)
	if err != nil {
		t.Fatal(err)
	}
	if seeked != nbytes {
		t.Fatal("Failed to seek to end")
	}
}
Esempio n. 29
0
func TestIndirectBlocks(t *testing.T) {
	ds := mdtest.Mock()
	dag, buf := getTestDag(t, ds, 1024*1024, 512)

	reader, err := uio.NewDagReader(context.Background(), dag, ds)
	if err != nil {
		t.Fatal(err)
	}

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

	if !bytes.Equal(out, buf) {
		t.Fatal("Not equal!")
	}
}
Esempio n. 30
0
func TestBasicAddGet(t *testing.T) {
	ds := dstest.Mock()
	nd := new(ProtoNode)

	c, err := ds.Add(nd)
	if err != nil {
		t.Fatal(err)
	}

	out, err := ds.Get(context.Background(), c)
	if err != nil {
		t.Fatal(err)
	}

	if !nd.Cid().Equals(out.Cid()) {
		t.Fatal("output didnt match input")
	}
}